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Make casts of pointers to trait objects stricter #120248

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merged 19 commits into from
Jul 8, 2024

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@WaffleLapkin WaffleLapkin commented Jan 22, 2024

This is an attempt to fix #120222 and #120217.

This is done by adding restrictions on casting pointers to trait objects.

Before this PR the rules were as follows:

When casting *const X<dyn A> -> *const Y<dyn B>, principal traits in A and B must refer to the same trait definition (or no trait).

With this PR the rules are changed to

When casting *const X<dyn Src> -> *const Y<dyn Dst>

  • if Dst has a principal trait DstP,
    • Src must have a principal trait SrcP
    • dyn SrcP and dyn DstP must be the same type (modulo the trait object lifetime, dyn T+'a -> dyn T+'b is allowed)
    • Auto traits in Dst must be a subset of auto traits in Src
      • Not adhering to this is currently a FCW (warn-by-default + FutureReleaseErrorReportInDeps), instead of an error
  • if Src has a principal trait Dst must as well
    • this restriction will be removed in a follow up PR

This ensures that

  1. Principal trait's generic arguments match (no *const dyn Tr<A> -> *const dyn Tr<B> casts, which are a problem for #120222)
  2. Principal trait's lifetime arguments match (no *const dyn Tr<'a> -> *const dyn Tr<'b> casts, which are a problem for #120217)
  3. No auto traits can be added (this is a problem for arbitrary self types, see this comment)

Some notes:

  • We only care about the metadata/last field, so you can still cast *const dyn T to *const WithHeader<dyn T>, etc
  • The lifetime of the trait object itself (dyn A + 'lt) is not checked, so you can still cast *mut FnOnce() + '_ to *mut FnOnce() + 'static, etc
    • This feels fishy, but I couldn't come up with a reason it must be checked

The diagnostics are currently not great, to say the least, but as far as I can tell this correctly fixes the issues.

cc @oli-obk @compiler-errors @lcnr

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@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Jan 22, 2024
@@ -100,7 +100,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {

Ok(match *t.kind() {
ty::Slice(_) | ty::Str => Some(PointerKind::Length),
ty::Dynamic(tty, _, ty::Dyn) => Some(PointerKind::VTable(tty.principal_def_id())),
ty::Dynamic(tty, _, ty::Dyn) => Some(PointerKind::VTable(tty.principal())),
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👍 Ah, ok, so this is fine because we erase regions in check_ptr_ptr_cast.

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bors added a commit to rust-lang-ci/rust that referenced this pull request Jan 22, 2024
…r=<try>

Make casts of pointers to trait objects stricter

This is an attempt to `fix` rust-lang#120222 and rust-lang#120217.

cc `@oli-obk` `@compiler-errors` `@lcnr`
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bors commented Jan 22, 2024

⌛ Trying commit 3c3cf17 with merge 2c99da5...

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Comment on lines 614 to 646
if let ty::RawPtr(src_pointee) = self.expr_ty.kind()
&& let ty::RawPtr(tgt_pointee) = self.cast_ty.kind()
{
if let Ok(Some(src_kind)) = fcx.pointer_kind(src_pointee.ty, self.expr_span)
&& let Ok(Some(tgt_kind)) =
fcx.pointer_kind(tgt_pointee.ty, self.cast_span)
{
match (src_kind, tgt_kind) {
// When casting a raw pointer to another raw pointer, we cannot convert the cast into
// a coercion because the pointee types might only differ in regions, which HIR typeck
// cannot distinguish. This would cause us to erroneously discard a cast which will
// lead to a borrowck error like #113257.
// We still did a coercion above to unify inference variables for `ptr as _` casts.
// This does cause us to miss some trivial casts in the trivial cast lint.
(PointerKind::Thin, PointerKind::Thin)
| (PointerKind::Length, PointerKind::Length) => {
debug!(" -> PointerCast");
}

// If we are not casting pointers to sized types or slice-ish DSTs
// (handled above), we need to make a coercion cast. This prevents
// casts like `*const dyn Trait<'a> -> *const dyn Trait<'b>` which
// are unsound.
//
// See <https://github.com/rust-lang/rust/issues/120217>
(_, _) => {
debug!(" -> CoercionCast");
fcx.typeck_results
.borrow_mut()
.set_coercion_cast(self.expr.hir_id.local_id);
}
}
}
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This will only work for pointers that can be coerced modulo regions, it will still let something like this pass:

trait Trait<'a> {}

fn cast<'a, 'b>(x: *mut dyn Trait<'a>) -> *mut (dyn Trait<'b> + Send) {
    x as _
}

I think the correct fix would be to actually borrow check the principals for equality around here:

CastKind::PtrToPtr => {

Also, extending the trait object lifetime itself (e.g. *mut dyn Trait<'a> + 'a -> *mut dyn Trait<'a> + 'static) is harmless and should be allowed, just like adding auto-traits is.


Edit: borrowck version here: c471b9b

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something like this pass:

It does indeed let it pass, but why? These are not coercible?..

I think the correct fix would be to actually borrow check the principals for equality around here:

I also thought of that, but it seemed somewhat painful to do. And since we handle upcasts with CastKind::PointerCoercion, this seemed like a good solution. Borrowck change might be the right solution after all though.

Edit: borrowck version here: c471b9b

This won't help with *mut (u8, dyn Trait<'a>) -> *mut (u8, dyn Trait<'b>), but that should be an easy fix with struct_tail...

Also, extending the trait object lifetime itself (e.g. *mut dyn Trait<'a> + 'a -> *mut dyn Trait<'a> + 'static) is harmless and should be allowed, [...]

Hm, I can't find an example why it isn't harmless, but I also can't really convince myself that it is. Is this something to do with the fact that you can given dyn Trait<'a> + 'b you can use 'a in Trait's method's signatures, but not 'b?

[...], harmless and should be allowed, just like adding auto-traits is.

Adding auto-traits is not harmless. Here is an example that segfaults in safe code with arbitraty self receivers and adding send:

example

#![feature(arbitrary_self_types)]

trait Trait {
    fn f(self: *const Self)
    where
        Self: Send;
}

impl Trait for *const () {
    fn f(self: *const Self) {
        unreachable!()
    }
}

fn main() {
    let unsend: *const dyn Trait = &(&() as *const ());
    let send_bad: *const (dyn Trait + Send) = unsend as _;
    send_bad.f();
}
fish: Job 1, './t' terminated by signal SIGSEGV (Address boundary error)

(play)

Notably, even though we had to implement f, it's not actually in a vtable, since you should not be able to call it (because of unsatisfied Send bound):

vtable layout

error: vtable entries for `<*const () as Trait>`: [
           MetadataDropInPlace,
           MetadataSize,
           MetadataAlign,
           Vacant,
       ]
  --> ./t.rs:24:1
   |
24 | trait Trait {
   | ^^^^^^^^^^^

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Adding auto-traits is not harmless. Here is an example that segfaults in safe code with arbitraty self receivers and adding send:

Interesting. I was somehow convinced these functions were still codegened and thought it'd be harmless because you can't do anything bad with with a sendable raw pointer alone.

This also means that borrow check alone won't be enough and we need to treat these casts more like coercions.

Is this something to do with the fact that you can given dyn Trait<'a> + 'b you can use 'a in Trait's method's signatures, but not 'b?

Yeah that was my reasoning as well. You can add bounds like Self: 'static, but since the maybe-not-'static thing is behind a raw pointer you shouldn't be able to do anything bad with it. But that same reasoning was already wrong for auto traits so I'm not sure anymore.

Also, extending the lifetime of trait objects is often used in unsafe code (like the one in std), so forbidding this will probably cause widespread breakage.

something like this pass:

It does indeed let it pass, but why? These are not coercible?..

What I'm trying to say is that because these are not coercible, the try_coercion_cast above will fail, which means that the cast will be a CastKind::PtrToPtr and not a coercion. And CastKind::PtrToPtr is absolutely not borrow checked so any lifetime can be cast to any other lifetime.

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This also means that borrow check alone won't be enough and we need to treat these casts more like coercions.

I think that we can check that in hir_typeck, the same way we check

let x: &dyn Trait + Send = &();
let y: &dyn Trait = x;

(I think this is done in hir_typeck? will have to find out...)

What I'm trying to say is that because these are not coercible, the try_coercion_cast above will fail, which means that the cast will be a CastKind::PtrToPtr and not a coercion. And CastKind::PtrToPtr is absolutely not borrow checked so any lifetime can be cast to any other lifetime.

Ah, I see. Right.

Do you think moving the check out of try_coercion_cast's match would fix the issue (possibly always reporting an error if try_coercion_cast fails for *mut dyn ...)? Or should I move to your proposed solution with doing things for PtrToPtr in borrowck?

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Do you think moving the check out of try_coercion_cast's match would fix the issue (possibly always reporting an error if try_coercion_cast fails for *mut dyn ...)?

Where exactly do you want to move it? If this is checked unconditionally even after do_check, then all ptr-ptr casts with vtables that can't be coerced will be just be forbidden, right? Like casting *mut Wrapper<dyn Trait> <-> *mut dyn Trait.

I think that we can check that in hir_typeck, the same way we check

let x: &dyn Trait + Send = &();
let y: &dyn Trait = x;

I think checking this here in check_ptr_ptr_cast where we also compare the principals might be fine. Just check that the source includes all auto traits from the target.

And I'm pretty sure we'd still need borrowck for the principal on top of that.

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Checking this with the Unsize looks risky to me. That trait is also implemented for trait upcasts, e.g. dyn Subtrait: Unsize<dyn Supertrait>, because trait upcasting is essentially treated as a "unsizing" coercion before codegen, except that the source type is already unsized.

Because of that, with your current implementation this will compile:

trait Super {}
trait Sub: Super {}

struct Wrapper<T: ?Sized>(T);

fn cast(ptr: *const dyn Sub) -> *const Wrapper<dyn Super> {
    // this is a "reinterpret cast" and not an upcast, the vtable is just copied
    ptr as _
}

This could theoretically be fine, because it looks like there is currently no (safe) way to cast from *const Wrapper<dyn Super> to *const dyn Super. This happens, because try_coercion_cast will (via Coerce::coerce_unsized) eagerly evaluate the CoerceUnsized and Unsize obligations, but not their nested obligations, which means that casting *const Wrapper<dyn Super> to *const dyn Super is treated as a coercion and fails. But this also leads to weird inconsistencies whether a cast is considered a coercion cast or pointer-pointer cast.

example
trait Trait {}

struct Wrapper<T: ?Sized>(T);

fn cast1(x: *const dyn Send) -> *const (dyn Send + Sync) {
    x as _ // is a ptr-ptr cast, compiles
}

fn cast2(x: *const Wrapper<dyn Send>) -> *const (dyn Send + Sync) {
    x as _ // is an unsizing coercion cast, error
}

So I'd argue the current behavior is a bug and it should always be allowed to cast *const Wrapper<dyn Trait> to *const dyn Trait, which would make your implementation incorrect.

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*const dyn Sub -> *const Wrapper<dyn Super> being a "reinterpret cast" is very bad, for the same reasons we have the issues this PR attempts to fix — having an incorrect vtable is not sound with other features. I'll add back the check that the principal traits are the same. While I don't see a safe way to go *const W<dyn Trait> -> *const dyn Trait, this transformation looks more than fine for me, so I really don't want to depend on it being impossible. (tbh I assumed it was possible, considering you can do *const dyn Trait -> *const W<dyn Trait>, it's very weird we don't allow the opposite...)

So I'd argue the current behavior is a bug and it should always be allowed to cast *const Wrapper<dyn Trait> to *const dyn Trait, which would make your implementation incorrect.

In other words: I agree with this.

Although I'm not sure how you can add this in a non-confusing way.

  • *const () -> *const Send must be unsizing
  • *const W<dyn Trait> -> *const dyn Trait should be ptr-ptr
    • But what if W<dyn Trait>: Trait? Currently it's unsizing, do we keep that?

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  • But what if W<dyn Trait>: Trait? Currently it's unsizing, do we keep that?

*const W<dyn Trait> -> *const dyn Trait can't be an unsizing cast, because W<dyn Trait> is not sized and not a trait object. We can't keep the vtable metadata that is already in the fat pointer *const W<dyn Trait> and add the metadata of an impl Trait for W<dyn Trait> on top of that.

Casting *const T to *const U should be an unsizing coercion if and only if T: Unsize<U>, but W<dyn Trait> can never implement Unsize<dyn Trait>.

The problem with the current implementation is that it doesn't fully check W<dyn Trait>: Unsize<dyn Trait>. It only sees that W<dyn Trait>: Unsize<dyn Trait> holds if the nested obligations W<dyn Trait>: Sized and W<dyn Trait>: Trait hold but then directly assumes the cast must be an unsizing coercion and only checks the nested obligations too late.

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Oooh, right.

Yeah, then *const W<dyn Trait> -> *const dyn Trait should definitely be supported, but maybe as a follow up to this :)

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It is possible to do *const W<dyn Trait> -> *const dyn Trait right now in safe code. You just need to write a small helper function

impl<T: ?Sized> Wrapper<T> {
    fn get(this: *const Self) -> *const T {
        this as _
    }
}

fn cast(ptr: *const Wrapper<dyn Super>) -> *const dyn Super {
    Wrapper::get(ptr)
}

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bors commented Jan 22, 2024

☀️ Try build successful - checks-actions
Build commit: 2c99da5 (2c99da556cc12f27b8bb6597475ebd722872cb69)

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TaKO8Ki commented Jan 31, 2024

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@TaKO8Ki TaKO8Ki closed this Jan 31, 2024
@TaKO8Ki TaKO8Ki reopened this Jan 31, 2024
@rustbot rustbot added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 31, 2024
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lcnr commented Feb 1, 2024

not following this pr too closely for now 🙇 afaict there are some challenges in getting this to work correctly.

wanted to quickly chime in that i believe at some point #120222 (comment) to be preferable simply because it's easier to confirm that it is actually correct.

I believe this to be fairly straightforward by computing the vtable layout once for a fully generic princial, e.g. reusing the same vtable layout for all instances of for<T, U> dyn Foo<T, U>, regardless of the actual arguments.

for #120217 we could similarly simply forbid calling raw-ptr methods on trait objects/not making them object safe.

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bors added a commit to rust-lang-ci/rust that referenced this pull request Feb 13, 2024
…r=<try>

Make casts of pointers to trait objects stricter

This is an attempt to `fix` rust-lang#120222 and rust-lang#120217.

This is done by adding restrictions on casting pointers to trait objects. Currently the restriction is
> When casting `*const X<dyn A>` -> `*const Y<dyn B>`, if `B` has a principal trait, `dyn A + 'erased: Unsize<dyn B + 'erased>` must hold

This ensures that
1. Principal trait's generic arguments match (no `*const dyn Tr<A>` -> `*const dyn Tr<B>` casts, which are a problem for [rust-lang#120222](rust-lang#120222))
2. Principal trait's lifetime arguments match (no `*const dyn Tr<'a>` -> `*const dyn Tr<'b>` casts, which are a problem for [rust-lang#120217](rust-lang#120217))
3. No auto traits can be _added_ (this is a problem for arbitrary self types, see [this comment](rust-lang#120248 (comment)))

Some notes:
 - We only care about the metadata/last field, so you can still cast `*const dyn T` to `*const WithHeader<dyn T>`, etc
- The lifetime of the trait object itself (`dyn A + 'lt`) is not checked, so you can still cast `*mut FnOnce() + '_` to `*mut FnOnce() + 'static`, etc
  - This feels fishy, but I couldn't come up with a reason it must be checked
- The new checks are only done if `B` has a principal, so you can still do any kinds of cast, if the target only has auto traits
  - This is because auto traits are not enough to get unsoundness issues that this PR fixes
  - ...and so it makes sense to minimize breakage

The plan is to, ~~once the checks are properly implemented~~, run crate to determine how much damage does this do.

The diagnostics are currently not great, to say the least, but as far as I can tell this correctly fixes the issues.

cc `@oli-obk` `@compiler-errors` `@lcnr`
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bors commented Feb 13, 2024

⌛ Trying commit 5f27951 with merge 13cae60...

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bors commented Feb 13, 2024

☀️ Try build successful - checks-actions
Build commit: 13cae60 (13cae6066db2d5e6c9bb508caceec8d34ca49980)

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bors commented Feb 13, 2024

☀️ Try build successful - checks-actions
Build commit: 13cae60 (13cae6066db2d5e6c9bb508caceec8d34ca49980)

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lcnr commented Feb 13, 2024

@craterbot check

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👌 Experiment pr-120248 created and queued.
🤖 Automatically detected try build 13cae60
🔍 You can check out the queue and this experiment's details.

ℹ️ Crater is a tool to run experiments across parts of the Rust ecosystem. Learn more

@craterbot craterbot removed the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Feb 13, 2024
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This was clearly a ton of work. Huge thanks to @WaffleLapkin for making this happen.

github-actions bot pushed a commit to rust-lang/miri that referenced this pull request Jul 9, 2024
…ler-errors,oli-obk,lnicola

Make casts of pointers to trait objects stricter

This is an attempt to `fix` rust-lang/rust#120222 and rust-lang/rust#120217.

This is done by adding restrictions on casting pointers to trait objects.

Before this PR the rules were as follows:

> When casting `*const X<dyn A>` -> `*const Y<dyn B>`, principal traits in `A` and `B` must refer to the same trait definition (or no trait).

With this PR the rules are changed to

> When casting `*const X<dyn Src>` -> `*const Y<dyn Dst>`
> - if `Dst` has a principal trait `DstP`,
>   - `Src` must have a principal trait `SrcP`
>   - `dyn SrcP` and `dyn DstP` must be the same type (modulo the trait object lifetime, `dyn T+'a` -> `dyn T+'b` is allowed)
>   - Auto traits in `Dst` must be a subset of auto traits in `Src`
>     - Not adhering to this is currently a FCW (warn-by-default + `FutureReleaseErrorReportInDeps`), instead of an error
> - if `Src` has a principal trait `Dst` must as well
>   - this restriction will be removed in a follow up PR

This ensures that
1. Principal trait's generic arguments match (no `*const dyn Tr<A>` -> `*const dyn Tr<B>` casts, which are a problem for [#120222](rust-lang/rust#120222))
2. Principal trait's lifetime arguments match (no `*const dyn Tr<'a>` -> `*const dyn Tr<'b>` casts, which are a problem for [#120217](rust-lang/rust#120217))
3. No auto traits can be _added_ (this is a problem for arbitrary self types, see [this comment](rust-lang/rust#120248 (comment)))

Some notes:
 - We only care about the metadata/last field, so you can still cast `*const dyn T` to `*const WithHeader<dyn T>`, etc
- The lifetime of the trait object itself (`dyn A + 'lt`) is not checked, so you can still cast `*mut FnOnce() + '_` to `*mut FnOnce() + 'static`, etc
  - This feels fishy, but I couldn't come up with a reason it must be checked

The diagnostics are currently not great, to say the least, but as far as I can tell this correctly fixes the issues.

cc `@oli-obk` `@compiler-errors` `@lcnr`
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Kobzol commented Jul 9, 2024

@rust-timer build 68e716e

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Finished benchmarking commit (68e716e): comparison URL.

Overall result: no relevant changes - no action needed

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR may lead to changes in compiler perf.

@bors rollup=never
@rustbot label: -S-waiting-on-perf -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

This benchmark run did not return any relevant results for this metric.

Cycles

Results (secondary 2.6%)

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)
- - 0
Regressions ❌
(secondary)
2.6% [2.5%, 2.6%] 3
Improvements ✅
(primary)
- - 0
Improvements ✅
(secondary)
- - 0
All ❌✅ (primary) - - 0

Binary size

This benchmark run did not return any relevant results for this metric.

Bootstrap: 701.941s -> 700.809s (-0.16%)
Artifact size: 328.61 MiB -> 328.59 MiB (-0.00%)

lnicola pushed a commit to lnicola/rust-analyzer that referenced this pull request Jul 11, 2024
…ler-errors,oli-obk,lnicola

Make casts of pointers to trait objects stricter

This is an attempt to `fix` rust-lang/rust#120222 and rust-lang/rust#120217.

This is done by adding restrictions on casting pointers to trait objects.

Before this PR the rules were as follows:

> When casting `*const X<dyn A>` -> `*const Y<dyn B>`, principal traits in `A` and `B` must refer to the same trait definition (or no trait).

With this PR the rules are changed to

> When casting `*const X<dyn Src>` -> `*const Y<dyn Dst>`
> - if `Dst` has a principal trait `DstP`,
>   - `Src` must have a principal trait `SrcP`
>   - `dyn SrcP` and `dyn DstP` must be the same type (modulo the trait object lifetime, `dyn T+'a` -> `dyn T+'b` is allowed)
>   - Auto traits in `Dst` must be a subset of auto traits in `Src`
>     - Not adhering to this is currently a FCW (warn-by-default + `FutureReleaseErrorReportInDeps`), instead of an error
> - if `Src` has a principal trait `Dst` must as well
>   - this restriction will be removed in a follow up PR

This ensures that
1. Principal trait's generic arguments match (no `*const dyn Tr<A>` -> `*const dyn Tr<B>` casts, which are a problem for [#120222](rust-lang/rust#120222))
2. Principal trait's lifetime arguments match (no `*const dyn Tr<'a>` -> `*const dyn Tr<'b>` casts, which are a problem for [#120217](rust-lang/rust#120217))
3. No auto traits can be _added_ (this is a problem for arbitrary self types, see [this comment](rust-lang/rust#120248 (comment)))

Some notes:
 - We only care about the metadata/last field, so you can still cast `*const dyn T` to `*const WithHeader<dyn T>`, etc
- The lifetime of the trait object itself (`dyn A + 'lt`) is not checked, so you can still cast `*mut FnOnce() + '_` to `*mut FnOnce() + 'static`, etc
  - This feels fishy, but I couldn't come up with a reason it must be checked

The diagnostics are currently not great, to say the least, but as far as I can tell this correctly fixes the issues.

cc `@oli-obk` `@compiler-errors` `@lcnr`
celinval added a commit to celinval/rust-dev that referenced this pull request Jul 17, 2024
5e4edba Rollup merge of rust-lang#127789 - Sword-Destiny:master, r=petrochenkov
686f75b Rollup merge of rust-lang#127047 - tspiteri:f128-aconsts-lsd, r=tgross35
8b1d874 deny unsafe_op_in_unsafe_fn for teeos
f8bb325 clean unsafe op in unsafe fn
b597017 clean unsafe op in unsafe fn
9fd9c61 clean unsafe op in unsafe fn
e0c57e4 delete #![allow(unsafe_op_in_unsafe_fn)]
a778c83 Auto merge of rust-lang#127777 - matthiaskrgr:rollup-qp2vkan, r=matthiaskrgr
6535591 Rollup merge of rust-lang#124921 - RalfJung:offset-from-same-addr, r=oli-obk
ac443f2 Auto merge of rust-lang#127020 - tgross35:f16-f128-classify, r=workingjubilee
eae9451 Rollup merge of rust-lang#127750 - ChrisDenton:safe-unsafe-unsafe, r=workingjubilee
6257980 Rollup merge of rust-lang#127744 - workingjubilee:deny-unsafe-op-in-std, r=jhpratt
05614f3 Rollup merge of rust-lang#127712 - ChrisDenton:raw-types, r=workingjubilee
14c24b1 Mark some `f16` and `f128` functions unstably const
1b70afd Move safety comment outside unsafe block
3c286d5 Make os/windows default to deny unsafe in unsafe
d96ed86 Make pal/windows default to deny unsafe in unsafe
bb3f60f Fix Windows 7
9fc6710 Auto merge of rust-lang#127719 - devnexen:math_log_fix_solill, r=Amanieu
decdb06 Don't re-export `c_int` from `c`
a1a1c6a Remove DWORD
7d18991 Remove ULONG
d89bce6 Remove PSRWLOCK
d3205de Remove LPVOID
68ac381 Remove LPSECURITY_ATTRIBUTES
6d037b8 Remove LPOVERLAPPED
61f617d Remove LPCVOID
8a25371 Remove SIZE_T
cd51de1 Remove CHAR
00a5b3b Remove USHORT
d621d21 Remove LPWSTR
0b22ecb Remove UINT
18adcef Remove LONG
4eaaf7d Remove LARGE_INTEGER
aa45985 Remove NonZeroDWORD
d7aa7cf Auto merge of rust-lang#127732 - GrigorenkoPV:teeos-safe-sys-init, r=Amanieu
5ff7b40 std: Unsafe-wrap std::sync
e8fa3ef std: Unsafe-wrap in Wtf8 impl
8c3a9c1 std: Unsafe-wrap std::io
91b7331 std: Directly call unsafe {un,}setenv in env
8c75111 std: Unsafe-wrap OSStr{,ing}::from_encoded_bytes_unchecked
4679f9a std: Unsafe-wrap HashMap::get_many_unchecked_mut
ac0fd27 std: deny(unsafe_op_in_unsafe_fn) but allow sites
f710e38 Add `classify` and related methods for `f16` and `f128`
009660d std: removes logarithms family function edge cases handling for solaris.
3492a6b Auto merge of rust-lang#127728 - matthiaskrgr:rollup-ercdbjd, r=matthiaskrgr
0873299 sys::init is not unsafe on teeos
6c4029a Rollup merge of rust-lang#127592 - tesuji:patch-1, r=Mark-Simulacrum
7cd8086 Auto merge of rust-lang#125935 - madsmtm:merge-os-apple, r=workingjubilee
cfb0556 Merge Apple `std::os` extensions modules into `std::os::darwin`
54435f7 Rollup merge of rust-lang#127704 - workingjubilee:fixup-better-than, r=ChrisDenton
e122949 Auto merge of rust-lang#127706 - workingjubilee:rollup-d07ij30, r=workingjubilee
3033120 Rollup merge of rust-lang#127659 - saethlin:manually-drop-bufwriter, r=joboet
e9eb7de Rollup merge of rust-lang#127446 - zachs18:miri-stdlib-leaks-core-alloc, r=Mark-Simulacrum
3ad2560 Rollup merge of rust-lang#127370 - ChrisDenton:win-sys, r=Mark-Simulacrum
05bf6bc doc: Suggest `str::repeat` over `iter::repeat().take().collect()`
96e8ba7 Fix minor typos in std::process doc on Win argv
6b67c66 Auto merge of rust-lang#126958 - dtolnay:u32char, r=Mark-Simulacrum
591aaaf std::unix::fs: removing, now useless, layers predating macOs 10.10.
94ec6e7 Auto merge of rust-lang#127674 - jhpratt:rollup-0dxy3k7, r=jhpratt
a7c1f60 Rollup merge of rust-lang#127668 - spencer3035:improve-slice-doc, r=jhpratt
1e49e05 Rollup merge of rust-lang#127661 - eduardosm:stabilize-io_slice_advance, r=cuviper
c79e003 Auto merge of rust-lang#127397 - jyn514:multi-thread-panic-hook, r=workingjubilee
206678c Auto merge of rust-lang#126606 - zachs18:patch-2, r=joboet
1bb0350 Updated slice documentation
c8b79dd Use ManuallyDrop in BufWriter::into_parts
6e26e27 Stabilize io_slice_advance
cac6664 Rename the internal `const_strlen` to just `strlen`
39647ab fix interleaved panic output
0476fc4 Rollup merge of rust-lang#127433 - dtolnay:conststrlen, r=workingjubilee
f66bd5f Rollup merge of rust-lang#126827 - the8472:pidfd-spawn, r=workingjubilee
1e5cd21 Rollup merge of rust-lang#124980 - zachs18:rc-allocator, r=Amanieu
949f0d6 Add instability attribute on private const_strlen function
20bfac6 Rollup merge of rust-lang#127422 - greaka:master, r=workingjubilee
f937ef1 Rollup merge of rust-lang#127599 - tgross35:lazy_cell_consume-rename, r=workingjubilee
fde7fd2 Rollup merge of rust-lang#127588 - uweigand:s390x-f16-doctests, r=tgross35
ed47f98 Rollup merge of rust-lang#127572 - tbu-:pr_debug_event_nonpacked, r=jhpratt
e5c8b85 Rollup merge of rust-lang#124599 - estebank:issue-41708, r=wesleywiser
b71b538 Rename `lazy_cell_consume` to `lazy_cell_into_inner`
9efc1cb core: Limit remaining f16 doctests to x86_64 linux
a18fbd0 Rollup merge of rust-lang#127554 - ferrocene:tshepang-add-missing-attribute, r=pietroalbini
e419147 Don't mark `DEBUG_EVENT` struct as `repr(packed)`
4552576 Auto merge of rust-lang#126690 - andyolivares:feature/show_window, r=dtolnay
6f6e343 Rollup merge of rust-lang#127091 - Sky9x:fused-error-sources-iter, r=dtolnay
0d64105 Fixed doc links
4fb7b22 Few changes to doc comments. Added tracking issue number.
fe62f6f Exposing STARTUPINFOW.wShowWindow in CommandExt (show_window function) to control how a new process should display its window (normal, minimized, maximized, etc)
7d20047  do not run test where it cannot run
c5f1c76 Auto merge of rust-lang#127235 - martn3:no-mips-f16, r=tgross35,scottmcm
3fefa04 Rollup merge of rust-lang#127460 - Borgerr:clarify-drop-comment, r=jhpratt
895175a Rollup merge of rust-lang#127355 - aceArt-GmbH:126475, r=oli-obk
57cea32 Rollup merge of rust-lang#120248 - WaffleLapkin:bonk-ptr-object-casts, r=compiler-errors,oli-obk,lnicola
e74955e Attempt to fix CI
e466bf5 Rollup merge of rust-lang#127367 - ChrisDenton:run-sync, r=Nilstrieb
90504f8 Rollup merge of rust-lang#126921 - workingjubilee:outline-va-list, r=Nilstrieb
c6b3f3d Auto merge of rust-lang#127454 - matthiaskrgr:rollup-k3vfen2, r=matthiaskrgr
29d7923 Move/change declaration of `mod exit_guard;`
ecc9025 clarify `sys::unix::fd::FileDesc::drop` comment (rust-lang#66876)
35c5a45 Rollup merge of rust-lang#127447 - RalfJung:once_lock_miri, r=joboet
9f7100d Rollup merge of rust-lang#127354 - nicholasbishop:bishop-sized-doc, r=Nilstrieb
ee06e7d Rollup merge of rust-lang#127297 - the8472:path-new-hash, r=Nilstrieb
2206c6b Rollup merge of rust-lang#127189 - GrigorenkoPV:linkedlist-cursor-list, r=Nilstrieb
41bcc36 Rollup merge of rust-lang#127179 - tgross35:typeid-debug-hex, r=Nilstrieb
7177ac8 once_lock: make test not take as long in Miri
294d87f Remove non-focused memory leak in `std` doctest for Miri.
a86fd0f Specialize `TrustedLen` for `Iterator::unzip()`
5515bba Mitigate focused memory leaks in `core` doctests for Miri.
3a0fe26 Remove non-focused memory leaks in `core` doctests for Miri.
20d6cb3 Mitigate focused memory leaks in `alloc` doctests for Miri.
cac8902 Remove non-focused memory leaks in `alloc` doctests for Miri.
bcdc8e8 Stabilize const_cstr_from_ptr (CStr::from_ptr, CStr::count_bytes)
a48f566 offset_from intrinsic: always allow pointers to point to the same address
9919a83 Mark format! with must_use hint
0907955 as_simd: fix comment to be in line with 507583a (rust-lang#121201)
5569ece Rollup merge of rust-lang#127275 - RalfJung:offset-from-isize-min, r=Amanieu
2337ab5 Rollup merge of rust-lang#125751 - pitaj:new_range_api, r=jhpratt
ad4fde6 Rollup merge of rust-lang#127363 - GuillaumeGomez:improve-fmt-code-readability, r=Amanieu
3eeca5f Rollup merge of rust-lang#127107 - mu001999-contrib:dead/enhance-2, r=pnkfelix
1b5e5ac Rollup merge of rust-lang#123600 - tisonkun:path_with_extension, r=dtolnay
5e9d445 Attempt to fix CI
d8965d3 add `new_range_api` for RFC 3550
ca0f659 Move exit guard from sys::common::exit_guard to sys::exit_guard.
cf300a7 Update library/std/src/sys/pal/common/exit_guard.rs
ba4c71a add unit tests for extra extension feature
55fc20b update comments
6b7a259 Add experimental raw-dylib feature to std
c452e62 Use windows_targets macro for alloc
521c81a Run alloc sync tests
2fcdebb Improve readability of some fmt code examples
625bcc4 Rollup merge of rust-lang#127320 - ChrisDenton:win-sys, r=Mark-Simulacrum
f8caf5f Rollup merge of rust-lang#127214 - bjorn3:miri_native_unwind, r=oli-obk
1862054 Describe Sized requirements for mem::offset_of
e26c881 impl FusedIterator and a size hint for the error sources iter
8f1c664 core: erase redundant stability attrs in va_list
60c33a5 library: outline VaList into ffi::va_list
03d11c2 Auto merge of rust-lang#126171 - RalfJung:simd_bitmask_multibyte, r=workingjubilee
297850a Add more checks for pointers with vtable meta
f58a3d6 Improve dead code analysis
515bd30 Add comments to windows_targets.rs
89d2de0 Update windows-bindgen to 0.58.0
0860a04 also remove redundant requirements from offset()
6f80604 offset_from: "the difference must fit in an isize" is a corollary
de4f5c2 Rollup merge of rust-lang#127303 - cuishuang:master, r=jhpratt
56c73c3 Rollup merge of rust-lang#127195 - biabbas:vxworks_cleanup, r=jhpratt
5dfdef7 Rollup merge of rust-lang#126792 - wooden-worm:master, r=Mark-Simulacrum
4df2059 chore: remove repeat words
acbefbb impl PathBuf::add_extension and Path::with_added_extension
13d5a42 Auto merge of rust-lang#127226 - mat-1:optimize-siphash-round, r=nnethercote
ed3d487 stir the hash state a little to avoid prefix collisions
5ca124f Add more test cases for path comparisons
33bc557 Add test case demonstrating equality of paths "foo/bar" and "foobar"
079f999 Move unique_thread_exit call to lang_start_internal so it is not in a generic function, and wrap it in `catch_unwind`
47d0cbc Remove Miri special-case
596be7e Use pthread_t instead of numeric thread id
2e90f6f Use libc::pause instead of std::thread::park in wait-for-exit loop
1fd23e8 core: Limit four f16 doctests to x86_64 linux
e6f15c5 std: Set has_reliable_f16 to false for MIPS targets in build.rs
67535b6 library/std/build.rs: "powerpc64le" is not a target_arch
5b0d82f Rollup merge of rust-lang#127204 - dimpolo:stabilize_atomic_bool_fetch_not, r=jhpratt
b184a84 Rollup merge of rust-lang#123588 - tgross35:stabilize-assert_unchecked, r=dtolnay
2a81053 Fall back on remove dir implementation for vxworks
a8b6d0a Rollup merge of rust-lang#127230 - hattizai:patch01, r=saethlin
4d7cbb2 chore: remove duplicate words
645e9f2 Optimize SipHash by reordering compress instructions
c5ab1f0 Rollup merge of rust-lang#127128 - elomatreb:elomatreb/stabilize-duration_abs_diff, r=joboet
f090672 Rollup merge of rust-lang#126732 - StackOverflowExcept1on:master, r=m-ou-se
1dc4f05 Use the native unwind function in miri where possible
4fff335 Avoid MIR bloat in inlining
4385efd Stabilize atomic_bool_fetch_not
6c3359c Rollup merge of rust-lang#127182 - danielhuang:patch-4, r=Nilstrieb
a0a438a Remove unqualified import io:: Error for vxworks as all Error references are qualified in process_vxworks.rs
2a65e9f Auto merge of rust-lang#127026 - Urgau:cleanup-bootstrap-check-cfg, r=Kobzol
bba2200 LinkedList's Cursor: method to get a ref to the cursor's list
40a9be9 Update ip_addr.rs
986dbd1 Print `TypeId` as hex for debugging
f27723e Rollup merge of rust-lang#127069 - Sky9x:fmt-pointer-use-addr, r=Nilstrieb
b068fce Rollup merge of rust-lang#126895 - betelgeuse:improve_simd_gather_documentation, r=Amanieu
a6b22e9 Rollup merge of rust-lang#127134 - tgross35:typeid-debug, r=Nilstrieb
7f0bb45 Rollup merge of rust-lang#126906 - GrigorenkoPV:fixme-split_at_first, r=Mark-Simulacrum
b0feb54 Rollup merge of rust-lang#126705 - safinaskar:panic, r=Mark-Simulacrum
b8977f5 Auto merge of rust-lang#127133 - matthiaskrgr:rollup-jxkp3yf, r=matthiaskrgr
affa2f9 Print `TypeId` as a `u128` for `Debug`
05a472c Rollup merge of rust-lang#127122 - TDecking:div_ceil, r=Nilstrieb
9b3a511 Auto merge of rust-lang#120639 - fee1-dead-contrib:new-effects-desugaring, r=oli-obk
f96a321 Stabilize `duration_abs_diff`
bf9096f small correction to fmt::Pointer impl
171f5db Auto merge of rust-lang#127121 - GuillaumeGomez:rollup-xjjjckn, r=GuillaumeGomez
50a6646 Remove uneccessary condition in `div_ceil`
7914389 Updated docs on `#[panic_handler]` in `library/core/src/lib.rs`
1858bdc Rollup merge of rust-lang#127073 - Sky9x:unnecessary-seqcst, r=Nilstrieb
aaed209 Rollup merge of rust-lang#127072 - Sky9x:docs-includes-vs-does-include, r=scottmcm
e5a577d Auto merge of rust-lang#127119 - RalfJung:miri-sync, r=RalfJung
77a5b51 Rollup merge of rust-lang#126953 - joboet:lazy_key, r=jhpratt
8641f6a Merge from rustc
402992c Rollup merge of rust-lang#127071 - Sky9x:remove-ptr-to-from-bits, r=scottmcm
0a2d8e4 Rollup merge of rust-lang#127070 - Sky9x:unit-const-param-ty, r=BoxyUwU
663f3d5 Rollup merge of rust-lang#127055 - shepmaster:hash-finish-must-use, r=dtolnay
729a10a address review comments
db228b8 general fixups and turn `TODO`s into `FIXME`s
47492c9 Implement `Min` trait in new solver
cc4a029 implement new effects desugaring
d6fadf5 std: add safety comments
8c3c7dc Rollup merge of rust-lang#126970 - DaniPopes:simplify-str-clone_into, r=cuviper
ae98528 Rollup merge of rust-lang#126956 - joboet:fmt_no_extern_ty, r=RalfJung
652f0b8 Merge from rustc
48dc678 Remove unnecessary SeqCst in `impl fmt::Pointer for AtomicPtr`
e6e5e84 docs: say "includes" instead of "does include"
a722d39 Remove (deprecated & unstable) {to,from}_bits pointer methods
2ed9c9f add () to the marker_impls macro for ConstParamTy
fdfe014 Mark `Hasher::finish` as #[must_use]
2bd2069 fix least significant digits of f128 associated constants
8db57c2 core: improve comment
1f8c8f4 Cleanup bootstrap check-cfg
6c38c60 Rollup merge of rust-lang#126980 - Borgerr:fix-extendfromslice-check, r=workingjubilee
a2dc9b5 Rollup merge of rust-lang#126929 - nnethercote:rm-__rust_force_expr, r=oli-obk
cf231e8 Merge from rustc
a8b311e Auto merge of rust-lang#126608 - tgross35:f16-f128-library, r=Mark-Simulacrum
4788a93 std: test a variety of ways to extend a Wtf8Buf
57c2de8 set self.is_known_utf8 to false in extend_from_slice
c14a130 Rollup merge of rust-lang#126879 - the8472:next-chunk-filter-drop, r=cuviper
f6fdef3 core: avoid `extern` types in formatting infrastructure
43a865a fix UI test, simplify error message
ff33a66 regression test for leaks in the the Filter::next_chunk implementation
f90972a add comments explaining optimizations for Filter::next_chunk
4039a7f fix Drop items getting leaked in Filter::next_chunk
0351c53 Simplify `str::clone_into`
5aedb8a Rollup merge of rust-lang#126946 - cyrgani:patch-1, r=compiler-errors
5664da3 Rollup merge of rust-lang#126927 - workingjubilee:vaargsafe-is-unsafe, r=joboet
9273373 Rollup merge of rust-lang#126885 - Borgerr:rm_internal_pathbuf_asmutvec, r=workingjubilee
46074aa Rollup merge of rust-lang#126302 - mu001999-contrib:ignore/default, r=michaelwoerister
0fe5362 Stabilize const unchecked conversion from u32 to char
9dcaa15 std: separate TLS key creation from TLS access
5d08a54 Detect unused structs which derived Default
e6c45e4 `PathBuf::as_mut_vec` removed and verified for UEFI and Windows platforms rust-lang#126333
7cec6ef remove references to `PathBuf::as_mut_vec` in `PathBuf::_set_extension`
37f78f4 inner truncate methods for UEFI platforms
cfb8021 rust-lang#126333 remove `PathBuf::as_mut_vec` reference at top of `PathBuf::_push`
3edb521 simd_bitmask intrinsic: add a non-power-of-2 multi-byte example
2ddf794 Add missing slash in const_eval_select doc comment
19cfdb2 Add tests for `f16` and `f128`
561daff Add more `f16` and `f128` library functions and constants
6cb3d34 Add doctests to existing `f16` and `f128` functions
b0e0503 Add build.rs config for reliable `f16` and `f128`
028026b Remove `__rust_force_expr`.
1069a68 core: VaArgSafe is an unsafe trait
a451b2a Auto merge of rust-lang#126852 - scottmcm:more-checked-math-tweaks, r=Amanieu
17d03b9 Check that we get somewhat sane PIDs when spawning with pidfds
4c9a96e more fine-grained feature-detection for pidfd spawning
bf06e43 document safety properties of the internal Process::new constructor
9212236 use pidfd_spawn for faster process creation when pidfds are requested
4815f29 document the cvt methods
1bd207e Rollup merge of rust-lang#126904 - GrigorenkoPV:nonzero-fixme, r=joboet
2676918 Rollup merge of rust-lang#125575 - dingxiangfei2009:derive-smart-ptr, r=davidtwco
9dcffa5 Rollup merge of rust-lang#125082 - kpreid:const-uninit, r=dtolnay
cf34f71 Replace `MaybeUninit::uninit_array()` with array repeat expression.
e51d8a2 Auto merge of rust-lang#126523 - joboet:the_great_big_tls_refactor, r=Mark-Simulacrum
2b8c7a3 Small fixme in core now that split_first has no codegen issues
532304b Small fixme in core now that NonZero is generic
5ae0378 std: fix wasm builds
ae08c58 Rollup merge of rust-lang#126213 - zachs18:atomicbool-u8-i8-from-ptr-alignment, r=Nilstrieb
071e80d Fix simd_gather documentation
0c4a661 wasm64 build with target-feature=+simd128,+atomics
36a20f7 Reword docs for `f32` and `f64`
6839ec5 Extract repeated constants from `f32` and `f64` source
c26bd79 Rollup merge of rust-lang#126854 - devnexen:std_unix_os_fallback_upd, r=Mark-Simulacrum
828e528 Rollup merge of rust-lang#126807 - devnexen:copy_file_macos_simpl, r=Mark-Simulacrum
e4bc79d Also get `add nuw` from `uN::checked_add`
7c83a04 SmartPointer derive-macro
f0b95fc fix build
12ec5b7 Rollup merge of rust-lang#126783 - tguichaoua:fix_tcplistener_into_incoming_issue_number, r=workingjubilee
eb265d0 std::unix::os::home_dir: fallback's optimisation.
a48f3d6 Auto merge of rust-lang#126838 - matthiaskrgr:rollup-qkop22o, r=matthiaskrgr
ec8af4b Rollup merge of rust-lang#126552 - fee1-dead-contrib:rmfx, r=compiler-errors
6d6ba92 Rollup merge of rust-lang#126140 - eduardosm:stabilize-fs_try_exists, r=Amanieu
e1edea8 Auto merge of rust-lang#116113 - kpreid:arcmut, r=dtolnay
49d4fdb Generalize `{Rc,Arc}::make_mut()` to unsized types.
5ac719e Replace `WriteCloneIntoRaw` with `CloneToUninit`.
a4ca461 Add `core::clone::CloneToUninit`.
7836843 Auto merge of rust-lang#126750 - scottmcm:less-unlikely, r=jhpratt
934e728 Auto merge of rust-lang#124101 - the8472:pidfd-methods, r=cuviper
c2ec99b to extract a pidfd we must consume the child
f7cf777 Add PidFd::{kill, wait, try_wait}
d688595 std::unix::fs: copy simplification for apple.
bb602cf Auto merge of rust-lang#125853 - tesuji:promote-fail-fast, r=cjgillot
1f17936 update intrinsic const param counting
5e7ce0b Remove `feature(effects)` from the standard library
8902c17 Auto merge of rust-lang#126781 - matthiaskrgr:rollup-5u4pens, r=matthiaskrgr
54eaed7 fix issue number
2e01ae3 Rollup merge of rust-lang#126613 - tgross35:log-test-update, r=cuviper
306d7bf Stop using `unlikely` in `strict_*` methods
a8ab1ce [GVN] Add tests for generic pointees with PtrMetadata
a272844 Don't perform mitigation for thread-unsafe libc::exit under Miri.
5035a17 fix rustdoc URL
1530977 On `target_os = "linux"`, ensure that only one Rust thread calls `libc::exit` or returns from `main`.
7e940ba Auto merge of rust-lang#126578 - scottmcm:inlining-bonuses-too, r=davidtwco
9a945fd Auto merge of rust-lang#124032 - Voultapher:a-new-sort, r=thomcc
dbaf524 Rollup merge of rust-lang#126737 - fee1-dead-contrib:rm-const-closures, r=compiler-errors
0f6922d Fix wrong big O star bracing in the doc comments
7bf7f57 Remove `feature(const_closures)` from libcore
b4e2e4a Auto merge of rust-lang#126736 - matthiaskrgr:rollup-rb20oe3, r=matthiaskrgr
0829ab8 Rollup merge of rust-lang#126717 - nnethercote:rustfmt-use-pre-cleanups, r=jieyouxu
f1c9c80 Rollup merge of rust-lang#126711 - GKFX:const-option-as-slice, r=oli-obk
e057232 Auto merge of rust-lang#116088 - nbdd0121:unwind, r=Amanieu,RalfJung
13ea648 Stabilize `PanicInfo::message()` and `PanicMessage`
b6a3858 Rollup merge of rust-lang#126703 - the8472:on-blackbox-crypto-use, r=scottmcm
847726d Shrink some slice iterator MIR
1ba2fa4 Stabilize `hint_assert_unchecked`
9d0041c Update documentation for `hint::assert_unchecked`
e3e84a7 Add blank lines after module-level `//` comments.
36ad0db Add blank lines after module-level `//!` comments.
4e67110 Convert some module-level `//` and `///` comments to `//!`.
669d6fc Make Option::as_[mut_]slice const
4ae781c reword the hint::blackbox non-guarantees
dd7c901 core: add tracking issue for `array::repeat`
5ddeaca core: simplify implementation of `array::repeat`, address other nits
62f7a4e core: implement `UncheckedIterator` for `RepeatN`
387fd1f core: implement `array::repeat`
3fc18d0 Add a hack to prevent proc_macro misopt in CI
a95938d Stabilise c_unwind
2a5e5b8 Rollup merge of rust-lang#125787 - Oneirical:infinite-test-a-novel, r=jieyouxu
227994d try implementing suggestions
78867ab run_make_support nm implementation + bin-emit-no-symbols rmake rewrite
76e61bf Replace `move||` with `move ||` in `compiler/` and `library/`
13a31b6 Auto merge of rust-lang#126330 - m-ou-se:panic-message-type, r=Amanieu
42802a3 Print the tested value in int_log tests
ea1ab74 Add missing CopyMarker impl
384c205 Revert panic_safe test changes
ca458ba Add PanicMessage type for PanicInfo::message().
2238945 Add tracking issue to async_drop API
0b3227b std: rename module for clarity
2b9a4f3 std: update TLS module documentation
00d4964 std: use the `c_int` from `core::ffi` instead of `libc`
bd3b9ec std: simplify `#[cfg]`s for TLS
78eaad5 Fix unintended regression for Freeze + Copy types
8cd20cb Auto merge of rust-lang#126569 - jieyouxu:rollup-1uvkb2y, r=jieyouxu
c1acd7a Rollup merge of rust-lang#126531 - slanterns:error_provider, r=workingjubilee
cd1c998 Rollup merge of rust-lang#126468 - RalfJung:euclid, r=Mark-Simulacrum
2730879 Rollup merge of rust-lang#126346 - hermit-os:fd, r=Amanieu
ebbce69 Rollup merge of rust-lang#126288 - x4exr:patch-1, r=dtolnay
4aa43c7 Auto merge of rust-lang#125720 - folkertdev:optimize_for_size-ptr-rotate, r=Amanieu
7912329 doc: Added commas where needed
48e1578 Fix doc-link issue
489dfce Remove reliance on const_trait in sort implementations
89b5784 std: move `sys_common::backtrace` to `sys`
90dbe22 use rustc-dep-of-std in panic_unwind
6832ad3 Rollup merge of rust-lang#126539 - lukaslueg:patch-1, r=jhpratt
04e46c2 Rollup merge of rust-lang#125112 - tbu-:pr_create_dir_all_empty, r=dtolnay
e77b474 Update `Arc::try_unwrap()` docs
83c530f Apply review comments
ae7f43e Auto merge of rust-lang#126299 - scottmcm:tune-sliceindex-ubchecks, r=saethlin
339f266 Redo SliceIndex implementations
2388743 update comment
4cc1c37 Rollup merge of rust-lang#126229 - ChrisDenton:bindgen, r=Mark-Simulacrum
b40c54b std: refactor the TLS implementation
7e3c4f8 Auto merge of rust-lang#126518 - matthiaskrgr:rollup-wb70rzq, r=matthiaskrgr
2678593 std: suggest OnceLock over Once
b509ed2 Polish `std::path::absolute` documentation.
c3c1757 Auto merge of rust-lang#126473 - matthiaskrgr:rollup-8w2xm09, r=matthiaskrgr
a135342 Rollup merge of rust-lang#126285 - kpreid:unique-rc, r=dtolnay
7fafb6d Rollup merge of rust-lang#126266 - tbu-:pr_doc_alloc_default_system, r=jhpratt
afee9f5 Rollup merge of rust-lang#126135 - hermit-os:fuse, r=jhpratt
4a32b4b Rollup merge of rust-lang#123769 - dtolnay:literal, r=fee1-dead
3909d51 div_euclid, rem_euclid: clarify/extend documentation
ca52a2c Rollup merge of rust-lang#126351 - devnexen:to_sol11_upd, r=ChrisDenton
369fa55 Rollup merge of rust-lang#126402 - firefighterduck:fix-unsafe-precon-copy, r=Nilstrieb
2acb995 Rollup merge of rust-lang#126390 - Kriskras99:master, r=Nilstrieb
b3c1dcb Rollup merge of rust-lang#126360 - compiler-errors:uplift-structural-traits, r=lcnr
bdb9aa2 Rollup merge of rust-lang#123726 - jieyouxu:command-new-docs, r=Nilstrieb
307d1af Remove superfluous escaping from byte, byte str, and c str literals
78d94ee LangItem-ify Coroutine trait in solvers
891f00c fix wrong assert_unsafe_precondition message for core::ptr::copy
9adf702 Rollup merge of rust-lang#126384 - RalfJung:is_none_or, r=workingjubilee
02cb1e9 Rollup merge of rust-lang#126347 - slanterns:try_simplify, r=scottmcm
fa2a54a Fix wording in {checked_}next_power_of_two
3ef894f add tracking issue for is_none_or
a5fe19d std::unix::fs::link using direct linkat call for Solaris and macOs.
9921cd2 Rollup merge of rust-lang#126328 - RalfJung:is_none_or, r=workingjubilee
93583a6 Simplify `try_*` on `Iterator`
47090b1 export std::os::fd module on HermitOS
17c90d8 Auto merge of rust-lang#126273 - pietroalbini:pa-bootstrap-update, r=Mark-Simulacrum
b482e06 add is_none_or
027c82e Rollup merge of rust-lang#126322 - m-ou-se:panicinfo-and-panicinfo-2, r=RalfJung
db03ec6 Rollup merge of rust-lang#126242 - yaahc:simplify-provider, r=jhpratt
956efde Rollup merge of rust-lang#126039 - dpaoliello:arm64ecbuild, r=davidtwco
3acb41f Fix deprecated version.
bc5e618 Update doc comment on PanicInfo::message().
249d63e Use payload_as_str instead of two downcasts.
15677e9 Fix deprecation version.
a239d5b Clarify doc comment.
209f8c8 Auto merge of rust-lang#126319 - workingjubilee:rollup-lendnud, r=workingjubilee
6ec98e7 Rollup merge of rust-lang#126305 - workingjubilee:fix-os-string-to-string-utf8-invariant, r=joboet
80467da Rollup merge of rust-lang#126287 - nnethercote:reformat-cranelift-patch, r=bjorn3
5760a4e Rollup merge of rust-lang#126281 - ChrisDenton:env, r=jhpratt
439c2ae Rollup merge of rust-lang#126249 - workingjubilee:simplify-try-map-signature, r=scottmcm
23e3dbf Rollup merge of rust-lang#126210 - lolbinarycat:ptr_doctest_assert, r=workingjubilee
d469394 Rollup merge of rust-lang#123374 - mgeier:doc-slice-from-raw-parts, r=scottmcm
63fe960 Require any function with a tait in its signature to actually constrain a hidden type
e1d73c2 Revert "Rollup merge of rust-lang#125362 - joboet:tait_hack, r=Nilstrieb"
382ed52 Make PathBuf less Ok with adding UTF-16 then `into_string`
548e7a4 Update a cranelift patch file for formatting changes.
8ccbe9e `UniqueRc`: support allocators and `T: ?Sized`.
b3dcee6 set_env: State the conclusion upfront
f56c023 Rename `std::fs::try_exists` to  `std::fs::exists` and stabilize fs_try_exists
c16d8b1 Unify guarantees about the default allocator
d8fe589 remove cfg(bootstrap)
a2ff49b replace version placeholder
f72e4a9 Formatting.
0503ca7 Bump deprecation of std's PanicInfo alias to 1.82.0.
fea6b03 Add PanicHookInfo::payload_as_str().
0c8a9e0 Fix display of panic message in recursive panic.
2f85702 Mention core's PanicInfo in error.md.
ad0667f Add note on panic payload type.
518722e Downcast panic payload to String too in example.
c4dea81 Move deprecation of std::panic::PanicInfo to 1.80.0.
143e4c4 Fix deprecation version.
c6749ae Rename std::panic::PanicInfo to PanicHookInfo.
db2e055 Formatting.
51f20ac Fix invalid markdown/html.
d4b7304 Reorder body of begin_panic for consistency.
373fb60 Impl Display for PanicPayload to simplify things.
224d45c Use unnamed lifetimes for [..]Payload impl blocks.
cf984e0 Move downcasting panic payload to str to a function.
a18eeac Mark some PanicInfo methods as #[inline] for consistency.
47f359b Remove std::panic::PanicInfo::internal_constructor+set_payload.
701d6a2 Remove core::panic::PanicInfo::internal_constructor.
cca865d Update doc comment about core::panicking.
221a90c Fix doc link.
d6658a5 Add core::panic::PanicInfo::payload() for compatibility.
ca0bfeb Document difference between core and std's PanicInfo.
702405e Split core's PanicInfo and std's PanicInfo.
483f641 Simplify `[T; N]::try_map` signature
8b6f468 Simplify provider api to improve llvm ir
c8170e6 Rollup merge of rust-lang#126212 - SteveLauC:fix/haiku, r=joboet
58bb5cf Rollup merge of rust-lang#126191 - ivan-shrimp:nonzero_doc, r=scottmcm
d2f8ddf Bump windows-bindgen to 0.57
02bf152 Clarify `Command::new` behavior if passed programs with arguments
e17d6b9 Remove some unused crate dependencies.
5840184 Update docs for AtomicU8/I8.
8791549 fix: build on haiku
263861f Update safety docs for AtomicBool::from_ptr.
e25ae61 docs(core): make more const_ptr doctests assert instead of printing
cf9de23 Auto merge of rust-lang#126205 - jieyouxu:rollup-s64z5ng, r=jieyouxu
c5da756 Rollup merge of rust-lang#126194 - ChrisDenton:winerror, r=Mark-Simulacrum
c4bd74c Rollup merge of rust-lang#125253 - sunsided:feature/FRAC_1_SQRT_PI, r=Mark-Simulacrum
c9c5d8f Auto merge of rust-lang#126193 - RalfJung:miri-sync, r=RalfJung
e39299d Migrate more things to WinError
0df0a38 fix `NonZero` doctest inconsistencies
818933d Rollup merge of rust-lang#126168 - devnexen:current_exe_haiku_simpl, r=ChrisDenton
a9bd569 Rollup merge of rust-lang#126146 - devnexen:signal_fbsd, r=ChrisDenton
05812a0 Merge from rustc
56bdaf3 std::unix::os current_exe implementation simplification for haiku.
e6c378f Auto merge of rust-lang#125966 - schvv31n:impl_os_string_pathbuf_leak, r=workingjubilee
e000ecb std::unix::process adding few specific freebsd signals to be able to id.
67454f5 Rollup merge of rust-lang#126138 - wbk:patch-1, r=lqd
ca932c8 Rollup merge of rust-lang#125998 - devnexen:get_mode_illumos, r=Nilstrieb
397e9cb Rollup merge of rust-lang#125951 - slanterns:error_in_core_stabilization, r=Amanieu
4655eca Fix typo in docs for std::pin
bb2e2d9 add HermitOS support of vectored read/write operations
dd7ccb7 Rollup merge of rust-lang#126089 - wutchzone:option_take_if, r=scottmcm
199da77 Rollup merge of rust-lang#126030 - ChrisDenton:update-wingen-readme, r=Mark-Simulacrum
8a4b11a Rollup merge of rust-lang#124012 - slanterns:as_slice_stabilize, r=BurntSushi
05a92c2 Auto merge of rust-lang#126110 - workingjubilee:backtrace-0.3.73, r=workingjubilee
cd73cbe Update backtrace to 0.3.73
c6e53ce Merge from rustc
3b60335 Rollup merge of rust-lang#125606 - diondokter:opt-size-int-fmt, r=cuviper
7014731 fix doc comments about `error_generic_member_access`
3f48168 Stabilize `error_in_core`
20f15f4 fixed memory leaks in PathBuf::leak & OsString::leak tests
fa66a61 Rollup merge of rust-lang#126096 - c410-f3r:tests-tests-tests, r=jhpratt
5736944 [RFC-2011] Allow `core_intrinsics` when activated
dfddd7e Stabilize Option::take_if
051c6c6 Raise `DEFAULT_MIN_STACK_SIZE` to at least 64KiB
29932f3 Auto merge of rust-lang#126038 - matthiaskrgr:rollup-h4rm3x2, r=matthiaskrgr
149a237 Promote `arm64ec-pc-windows-msvc` to tier 2
4a81c12 Rollup merge of rust-lang#126032 - ChrisDenton:update-docs, r=joboet
7450cf0 Rollup merge of rust-lang#125800 - fortanix:raoul/rte-99-fix_mut_static_task_queue, r=jethrogb
ed91d55 Rollup merge of rust-lang#125940 - devnexen:unix_fs_netbsd_get_path, r=cuviper
bf7430f Update description of the `IsTerminal` example
91c8b23 Update `./x fmt` command
1632165 Rollup merge of rust-lang#125995 - kpreid:const-uninit-stable, r=Nilstrieb
2c5f1ac Rollup merge of rust-lang#125982 - xTachyon:fix-linked-list, r=jhpratt
80cee25 Rollup merge of rust-lang#123168 - joshtriplett:size-of-prelude, r=Amanieu
28dc012 std::unix::fs::get_mode implementation for illumos/solaris.
14a6f29 Use inline const instead of unsafe to implement `MaybeUninit::uninit_array()`.
a2c3406 Use inline const instead of unsafe to construct arrays in `MaybeUninit` examples.
f8ee355 Rollup merge of rust-lang#125932 - schvv31n:patch-1, r=lqd
49dad46 Rollup merge of rust-lang#125927 - ferrocene:lw-alloc-unwind-test, r=pietroalbini
e38c13a Rollup merge of rust-lang#125696 - workingjubilee:please-dont-say-you-are-lazy, r=Nilstrieb
1764910 Rollup merge of rust-lang#106186 - rossmacarthur:ft/iter-chain, r=Amanieu
fbb5246 Make deleting on LinkedList aware of the allocator
85aa4b6 impl OsString::leak & PathBuf::leak
b19dd14 Add function `core::iter::chain`
25245bb Rollup merge of rust-lang#125919 - tbu-:pr_fix_typo, r=lqd
a415ddd Rollup merge of rust-lang#125504 - mqudsi:once_nominal, r=cuviper
ea7e91c Let compiler auto impl `Send` for `Task`
55f3d10 Store `Task::p` as `dyn FnOnce() + Send`
92b604f Pass function for `Thread` as `Send` to `Thread::imp`
175ad22 Auto merge of rust-lang#125525 - joboet:tls_accessor, r=cuviper
31e0022 std::unix::fs::get_path: using fcntl codepath for netbsd instead.
82e24ad Fix typo in the docs of `HashMap::raw_entry_mut`
fcc07af Ignore `vec_deque_alloc_error::test_shrink_to_unwind` test on non-unwind targets
6ef46b3 Auto merge of rust-lang#125912 - nnethercote:rustfmt-tests-mir-opt, r=oli-obk
7927138 Remove stray "this"
06d9b0e Add "OnceList" example to motivate OnceLock
6d001c5 Move first OnceLock example to LazyLock
7e47256 Differ LazyLock vs. OnceLock in std::sync overview
a198721 Explain LazyCell in core::cell overview
ae5598a Reformat `mir!` macro invocations to use braces.
494f05c Rollup merge of rust-lang#125898 - RalfJung:typo, r=Nilstrieb
7881d33 Rollup merge of rust-lang#125884 - Rua:integer_sign_cast, r=Mark-Simulacrum
380d9a3 Rollup merge of rust-lang#121062 - RustyYato:f32-midpoint, r=the8472
81b9e26 Wording of the documentation
1c707b6 typo: depending from -> on
fe5adb9 Auto merge of rust-lang#125577 - devnexen:netbsd_stack_min, r=joboet
876458e Implement feature `integer_sign_cast`
e929c7f Change f32::midpoint to upcast to f64
cd04000 Auto merge of rust-lang#124294 - tspiteri:ilog-first-iter, r=the8472
7f0b19d stablize `const_binary_heap_constructor` & create an unstable feature `const_binary_heap_new_in` for `BinaryHeap::new_in`
5c2e274 Rollup merge of rust-lang#125730 - mu001999-contrib:clippy-fix, r=oli-obk
9fe1803 Auto merge of rust-lang#124662 - zetanumbers:needs_async_drop, r=oli-obk
8943103 Avoid `mut` and simplify initialization of `TASK_QUEUE`
ba98164 Auto merge of rust-lang#124636 - tbu-:pr_env_unsafe, r=petrochenkov
bbaaa79 Rollup merge of rust-lang#125746 - jmillikin:duration-from-weeks-typo, r=lqd
1329a62 Rollup merge of rust-lang#125739 - RalfJung:drop-in-place-docs, r=workingjubilee
8883bcf Rollup merge of rust-lang#125342 - tbu-:pr_doc_write, r=ChrisDenton
14d5dcb explain what the open questions are, and add a Miri test for that
6f01ba7 Apply x clippy --fix and x fmt
c9c0713 Fix copy-paste error in `Duration::from_weeks` panic message.
e935223 Rollup merge of rust-lang#125733 - compiler-errors:async-fn-assoc-item, r=fmease
4feb881 Elaborate about modifying env vars in multi-threaded programs
2500719 Add note about safety of `std::env::set_var` on Windows
c4b1ff8 Make `std::env::{set_var, remove_var}` unsafe in edition 2024
07d3009 drop_in_place: weaken the claim of equivalence with drop(ptr.read())
99eabb4 Add lang item for AsyncFnKindHelper::Upvars
a8f468f Add lang item for Future::Output
2e1896e Add lang items for AsyncFn's associated types
d82378a [ACP 362] genericize `ptr::from_raw_parts`
619e33b Add FRAC_1_SQRT_2PI doc alias to FRAC_1_SQRT_TAU
1265244 make `ptr::rotate` smaller when using `optimize_for_size`
bb6d4eb Add safety comment to fix tidy
c8b699c Optimize async drop glue for some old types
0444ab8 Add FRAC_1_SQRT_2PI constant to f16/f32/f64/f128
1aaf0a9 Rollup merge of rust-lang#125226 - madsmtm:fix-mac-catalyst-tests, r=workingjubilee
565dce2 Rollup merge of rust-lang#124251 - scottmcm:unop-ptr-metadata, r=oli-obk
a4025eb Add custom mir support for `PtrMetadata`
87b9f24 Add an intrinsic for `ptr::metadata`
914d2c0 Rollup merge of rust-lang#125637 - nnethercote:rustfmt-fixes, r=GuillaumeGomez
3170156 Make more of the test suite run on Mac Catalyst
9753338 Disable stack overflow handler tests on iOS-like platforms
3548389 Don't format `tests/run-make/*/rmake.rs`.
6fcf130 Rollup merge of rust-lang#125647 - tspiteri:track-lazy_cell_consume, r=workingjubilee
385e1b8 Rollup merge of rust-lang#125551 - clarfonthey:ip-bits, r=jhpratt
457f5ee update tracking issue for lazy_cell_consume
893db81 Auto merge of rust-lang#125636 - workingjubilee:bump-backtrace-0.3.72, r=workingjubilee
6785858 Sync libstd deps with backtrace
b214872 Bump backtrace to 0.3.72
0ef7706 Auto merge of rust-lang#125609 - diondokter:opt-size-char-count, r=thomcc
3578f42 Rollup merge of rust-lang#124870 - Lokathor:update-result-docs, r=dtolnay
d4fb66b Always use the general case char count
1e8098b Size optimize int formatting
a74509c Rollup merge of rust-lang#125559 - scottmcm:simplify-shift-ubcheck, r=workingjubilee
bc346a0 Auto merge of rust-lang#122079 - tbu-:pr_copy_file_range_probe, r=the8472
fdcee4d std::pal::unix::thread fetching min stack size on netbsd.
d14171d Auto merge of rust-lang#125574 - matthiaskrgr:rollup-1oljoup, r=matthiaskrgr
3e545bc Rollup merge of rust-lang#125571 - tesuji:dummy-pi, r=Nilstrieb
8409442 Rollup merge of rust-lang#125561 - Cyborus04:stabilize-slice-flatten, r=scottmcm
8981ee4 Auto merge of rust-lang#125570 - tesuji:stdout-handle, r=Nilstrieb
addaaed f32: use constants instead of reassigning a dummy value as PI
8a6d10d use proper name instead of magic number
64671fa Stabilize `slice_flatten`
4014081 Auto merge of rust-lang#125070 - tbu-:pr_set_extension_panic, r=jhpratt
f54c557 Auto merge of rust-lang#125518 - saethlin:check-arguments-new-in-const, r=joboet
a4bac2b It seems that anchor names are implicitly all lowercase
7cddfd4 Simplify the `unchecked_sh[lr]` ub-checks a bit
805f56b Fix URL target, it's in the module not the type.
3b77f19 github showed that weird.
65726c0 correct for copy paste errors when fixing wrapping.
613145f Resolve rust-lang#124870 (comment)
9677b70 revert to the inconsistent paragraph wrapping.
bf3ca98 Rollup merge of rust-lang#124667 - newpavlov:stabilize_div_duration, r=jhpratt
4af28c4 Rollup merge of rust-lang#123803 - Sp00ph:shrink_to_fix, r=Mark-Simulacrum
79e1daf Rollup merge of rust-lang#122986 - taiki-e:aix-c-char, r=Mark-Simulacrum
0b13a6c Rollup merge of rust-lang#121377 - pitaj:lazy_cell_fn_pointer, r=dtolnay
b1ac7da Stabilise ip_bits feature
23bb5bc Auto merge of rust-lang#121571 - clarfonthey:unchecked-math-preconditions, r=saethlin
c11b36a Rollup merge of rust-lang#125527 - programmerjake:patch-2, r=workingjubilee
d6812d5 Rollup merge of rust-lang#125498 - zmodem:avx512er, r=workingjubilee
f52291b Rollup merge of rust-lang#125478 - Urgau:check-cfg-config-bump-stage0, r=Mark-Simulacrum
38dcab9 Rollup merge of rust-lang#125271 - RalfJung:posix_memalign, r=workingjubilee
29a1b3b Move the checks for Arguments constructors to inline const
5257f3f Add manual Sync impl for ReentrantLockGuard
078095a std: make TLS accessors closures that return pointers
567096d Rollup merge of rust-lang#125497 - meesfrensel:patch-1, r=calebzulawski
dd828cf Stop using the avx512er and avx512pf x86 target features
749b376 Change pedantically incorrect OnceCell/OnceLock wording
2b1602a Fix some SIMD intrinsics documentation
59b5617 Remove now outdated comment since we bumped stage0
6d1cdb5 Add assert_unsafe_precondition to unchecked_{add,sub,neg,mul,shl,shr} methods
8fa3f60 Document behavior of `create_dir_all` wrt. empty path
dd196e7 Document platform-specifics for `Read` and `Write` of `File`
a71d9d9 Fix c_char on AIX
ce3db1b fix typo
4913884 use posix_memalign on most Unix targets
86878b9 Fix linkchecker doc errors
1bf7a30 Turn bare links into automatic links
736b225 Move BufGuard impl outside of function
a44e7b3 Fix tidy errors
36af639 Replace sort implementations
48a835b Divide float nanoseconds instead of seconds
f84d57f Don't use `T` with both Result and Option, improve explanation.
88338ff Add `size_of`, `size_of_val`, `align_of`, and `align_of_val` to the prelude
5d56638 Panic if `PathBuf::set_extension` would add a path separator
7db52fc Add fn allocator method to rc/sync::Weak. Relax Rc<T>/Arc<T>::allocator to allow unsized T.
43bf016 Suggest borrowing on fn argument that is `impl AsRef`
50d5af4 use teletype on the attribute name
43ae187 Some Result combinations work like an Option.
d0c07aa Move `test_shrink_to_unwind` to its own file.
d77b1cc Fix `VecDeque::shrink_to` UB when `handle_alloc_error` unwinds.
0342284 Use `CURRENT_RUSTC_VERSION`
9eb77db Stabilize `div_duration`
7a6ddb3 Lift the probe code of `copy_file_range` into a function
f5305c1 Add missing .into_iter()
2a5af32 Extend the example code and assert the result
678e5a0 Add "safety" comment
ad38f9b unroll first iter of checked_ilog loop to save one multiplication
dbd03d4 Stabilize `BinaryHeap::as_slice`
08f761f DOC: Add FFI example for slice::from_raw_parts()
30c876c Be stricter with `copy_file_range` probe results
fe05246 Less syscalls for the `copy_file_range` probe
511fe47 Stabilize `LazyCell` and `LazyLock` (`lazy_cell`)

git-subtree-dir: library
git-subtree-split: 5e4edba
jaisnan added a commit to model-checking/verify-rust-std that referenced this pull request Jul 17, 2024
a2cf636 Rollup merge of rust-lang#127813 - ChrisDenton:win-futex, r=joboet
aeae332 Rollup merge of rust-lang#127763 - ChrisDenton:safe-unsafe-unsafe, r=tgross35
e0ea701 Prevent double reference in generic futex
417b61f Narrow the scope of the ReadFile unsafe block
b4d1392 forbid(unsafe_op_in_unsafe_fn) in sys/os_str
f431b51 Rollup merge of rust-lang#127836 - workingjubilee:forbid-unsafe-ops-in-xous-uefi, r=tgross35
0a024bd Rollup merge of rust-lang#127833 - risc0:erik/zkvm-deny-unsafe, r=workingjubilee
0299bb5 Rollup merge of rust-lang#127807 - ChrisDenton:win-parking, r=joboet
61af010 Rollup merge of rust-lang#127792 - workingjubilee:read-unaligned-is-dwarfier, r=joboet
d3cf2e1 Rollup merge of rust-lang#127444 - Sky9x:cstr-bytes-iter, r=dtolnay
12075d1 Rollup merge of rust-lang#126776 - nnethercote:rustfmt-use-pre-cleanups-2, r=cuviper
00d603f Rollup merge of rust-lang#126271 - diondokter:dec2flt-skip-fast-path, r=tgross35
8490c84 Rollup merge of rust-lang#125206 - mgeisler:simplify-std-env-vars, r=jhpratt,tgross35
a752e3b uefi: Forbid unwrapped unsafe in platform modules
32a1b07 Cfg nit
e189d3b xous: Forbid unwrapped unsafe in platform modules
7ddd7f8 zkvm: add `#[forbid(unsafe_op_in_unsafe_fn)]` in `stdlib`
0723962 Adjust some comments on individual `use` declarations.
4320ba0 Avoid comments that describe multiple `use` items.
1aeddb0 Merge some `core::iter` entries.
7a0b2fb Add unsafe blocks in unsafe Thread::new
8e76b15 Remove `slice_to_end`
e8527cd std: unwrapped unsafe is VERBOTEN!
5e4edba Rollup merge of rust-lang#127789 - Sword-Destiny:master, r=petrochenkov
1b631e5 Use futex.rs for Windows thread parking
d59f862 std: Use read_unaligned for reading DWARF
686f75b Rollup merge of rust-lang#127047 - tspiteri:f128-aconsts-lsd, r=tgross35
8b1d874 deny unsafe_op_in_unsafe_fn for teeos
f8bb325 clean unsafe op in unsafe fn
b597017 clean unsafe op in unsafe fn
9fd9c61 clean unsafe op in unsafe fn
e0c57e4 delete #![allow(unsafe_op_in_unsafe_fn)]
704f56f `impl Send + Sync` and override `count` for the `CStr::bytes` iterator
a778c83 Auto merge of rust-lang#127777 - matthiaskrgr:rollup-qp2vkan, r=matthiaskrgr
6535591 Rollup merge of rust-lang#124921 - RalfJung:offset-from-same-addr, r=oli-obk
ac443f2 Auto merge of rust-lang#127020 - tgross35:f16-f128-classify, r=workingjubilee
57937d7 allow(unsafe_op_in_unsafe_fn) on some functions
94b381d Some Windows functions are safe
f3bb34b Deny more windows unsafe_op_in_unsafe_fn
eae9451 Rollup merge of rust-lang#127750 - ChrisDenton:safe-unsafe-unsafe, r=workingjubilee
6257980 Rollup merge of rust-lang#127744 - workingjubilee:deny-unsafe-op-in-std, r=jhpratt
05614f3 Rollup merge of rust-lang#127712 - ChrisDenton:raw-types, r=workingjubilee
14c24b1 Mark some `f16` and `f128` functions unstably const
1b70afd Move safety comment outside unsafe block
3c286d5 Make os/windows default to deny unsafe in unsafe
d96ed86 Make pal/windows default to deny unsafe in unsafe
bb3f60f Fix Windows 7
9fc6710 Auto merge of rust-lang#127719 - devnexen:math_log_fix_solill, r=Amanieu
decdb06 Don't re-export `c_int` from `c`
a1a1c6a Remove DWORD
7d18991 Remove ULONG
d89bce6 Remove PSRWLOCK
d3205de Remove LPVOID
68ac381 Remove LPSECURITY_ATTRIBUTES
6d037b8 Remove LPOVERLAPPED
61f617d Remove LPCVOID
8a25371 Remove SIZE_T
cd51de1 Remove CHAR
00a5b3b Remove USHORT
d621d21 Remove LPWSTR
0b22ecb Remove UINT
18adcef Remove LONG
4eaaf7d Remove LARGE_INTEGER
aa45985 Remove NonZeroDWORD
d7aa7cf Auto merge of rust-lang#127732 - GrigorenkoPV:teeos-safe-sys-init, r=Amanieu
5ff7b40 std: Unsafe-wrap std::sync
e8fa3ef std: Unsafe-wrap in Wtf8 impl
8c3a9c1 std: Unsafe-wrap std::io
91b7331 std: Directly call unsafe {un,}setenv in env
8c75111 std: Unsafe-wrap OSStr{,ing}::from_encoded_bytes_unchecked
4679f9a std: Unsafe-wrap HashMap::get_many_unchecked_mut
ac0fd27 std: deny(unsafe_op_in_unsafe_fn) but allow sites
f710e38 Add `classify` and related methods for `f16` and `f128`
009660d std: removes logarithms family function edge cases handling for solaris.
3492a6b Auto merge of rust-lang#127728 - matthiaskrgr:rollup-ercdbjd, r=matthiaskrgr
0873299 sys::init is not unsafe on teeos
6c4029a Rollup merge of rust-lang#127592 - tesuji:patch-1, r=Mark-Simulacrum
7cd8086 Auto merge of rust-lang#125935 - madsmtm:merge-os-apple, r=workingjubilee
cfb0556 Merge Apple `std::os` extensions modules into `std::os::darwin`
54435f7 Rollup merge of rust-lang#127704 - workingjubilee:fixup-better-than, r=ChrisDenton
e122949 Auto merge of rust-lang#127706 - workingjubilee:rollup-d07ij30, r=workingjubilee
3033120 Rollup merge of rust-lang#127659 - saethlin:manually-drop-bufwriter, r=joboet
e9eb7de Rollup merge of rust-lang#127446 - zachs18:miri-stdlib-leaks-core-alloc, r=Mark-Simulacrum
3ad2560 Rollup merge of rust-lang#127370 - ChrisDenton:win-sys, r=Mark-Simulacrum
05bf6bc doc: Suggest `str::repeat` over `iter::repeat().take().collect()`
96e8ba7 Fix minor typos in std::process doc on Win argv
6b67c66 Auto merge of rust-lang#126958 - dtolnay:u32char, r=Mark-Simulacrum
591aaaf std::unix::fs: removing, now useless, layers predating macOs 10.10.
94ec6e7 Auto merge of rust-lang#127674 - jhpratt:rollup-0dxy3k7, r=jhpratt
a7c1f60 Rollup merge of rust-lang#127668 - spencer3035:improve-slice-doc, r=jhpratt
1e49e05 Rollup merge of rust-lang#127661 - eduardosm:stabilize-io_slice_advance, r=cuviper
c79e003 Auto merge of rust-lang#127397 - jyn514:multi-thread-panic-hook, r=workingjubilee
206678c Auto merge of rust-lang#126606 - zachs18:patch-2, r=joboet
1bb0350 Updated slice documentation
c8b79dd Use ManuallyDrop in BufWriter::into_parts
6e26e27 Stabilize io_slice_advance
cac6664 Rename the internal `const_strlen` to just `strlen`
39647ab fix interleaved panic output
0476fc4 Rollup merge of rust-lang#127433 - dtolnay:conststrlen, r=workingjubilee
f66bd5f Rollup merge of rust-lang#126827 - the8472:pidfd-spawn, r=workingjubilee
1e5cd21 Rollup merge of rust-lang#124980 - zachs18:rc-allocator, r=Amanieu
949f0d6 Add instability attribute on private const_strlen function
20bfac6 Rollup merge of rust-lang#127422 - greaka:master, r=workingjubilee
f937ef1 Rollup merge of rust-lang#127599 - tgross35:lazy_cell_consume-rename, r=workingjubilee
fde7fd2 Rollup merge of rust-lang#127588 - uweigand:s390x-f16-doctests, r=tgross35
ed47f98 Rollup merge of rust-lang#127572 - tbu-:pr_debug_event_nonpacked, r=jhpratt
e5c8b85 Rollup merge of rust-lang#124599 - estebank:issue-41708, r=wesleywiser
b71b538 Rename `lazy_cell_consume` to `lazy_cell_into_inner`
9efc1cb core: Limit remaining f16 doctests to x86_64 linux
a18fbd0 Rollup merge of rust-lang#127554 - ferrocene:tshepang-add-missing-attribute, r=pietroalbini
e419147 Don't mark `DEBUG_EVENT` struct as `repr(packed)`
4552576 Auto merge of rust-lang#126690 - andyolivares:feature/show_window, r=dtolnay
6f6e343 Rollup merge of rust-lang#127091 - Sky9x:fused-error-sources-iter, r=dtolnay
0d64105 Fixed doc links
4fb7b22 Few changes to doc comments. Added tracking issue number.
fe62f6f Exposing STARTUPINFOW.wShowWindow in CommandExt (show_window function) to control how a new process should display its window (normal, minimized, maximized, etc)
7d20047  do not run test where it cannot run
c5f1c76 Auto merge of rust-lang#127235 - martn3:no-mips-f16, r=tgross35,scottmcm
3fefa04 Rollup merge of rust-lang#127460 - Borgerr:clarify-drop-comment, r=jhpratt
895175a Rollup merge of rust-lang#127355 - aceArt-GmbH:126475, r=oli-obk
57cea32 Rollup merge of rust-lang#120248 - WaffleLapkin:bonk-ptr-object-casts, r=compiler-errors,oli-obk,lnicola
e74955e Attempt to fix CI
e466bf5 Rollup merge of rust-lang#127367 - ChrisDenton:run-sync, r=Nilstrieb
90504f8 Rollup merge of rust-lang#126921 - workingjubilee:outline-va-list, r=Nilstrieb
c6b3f3d Auto merge of rust-lang#127454 - matthiaskrgr:rollup-k3vfen2, r=matthiaskrgr
29d7923 Move/change declaration of `mod exit_guard;`
ecc9025 clarify `sys::unix::fd::FileDesc::drop` comment (rust-lang#66876)
35c5a45 Rollup merge of rust-lang#127447 - RalfJung:once_lock_miri, r=joboet
9f7100d Rollup merge of rust-lang#127354 - nicholasbishop:bishop-sized-doc, r=Nilstrieb
ee06e7d Rollup merge of rust-lang#127297 - the8472:path-new-hash, r=Nilstrieb
2206c6b Rollup merge of rust-lang#127189 - GrigorenkoPV:linkedlist-cursor-list, r=Nilstrieb
41bcc36 Rollup merge of rust-lang#127179 - tgross35:typeid-debug-hex, r=Nilstrieb
7177ac8 once_lock: make test not take as long in Miri
294d87f Remove non-focused memory leak in `std` doctest for Miri.
a86fd0f Specialize `TrustedLen` for `Iterator::unzip()`
5515bba Mitigate focused memory leaks in `core` doctests for Miri.
3a0fe26 Remove non-focused memory leaks in `core` doctests for Miri.
20d6cb3 Mitigate focused memory leaks in `alloc` doctests for Miri.
cac8902 Remove non-focused memory leaks in `alloc` doctests for Miri.
bcdc8e8 Stabilize const_cstr_from_ptr (CStr::from_ptr, CStr::count_bytes)
a48f566 offset_from intrinsic: always allow pointers to point to the same address
9919a83 Mark format! with must_use hint
0907955 as_simd: fix comment to be in line with 507583a (rust-lang#121201)
5569ece Rollup merge of rust-lang#127275 - RalfJung:offset-from-isize-min, r=Amanieu
2337ab5 Rollup merge of rust-lang#125751 - pitaj:new_range_api, r=jhpratt
ad4fde6 Rollup merge of rust-lang#127363 - GuillaumeGomez:improve-fmt-code-readability, r=Amanieu
3eeca5f Rollup merge of rust-lang#127107 - mu001999-contrib:dead/enhance-2, r=pnkfelix
1b5e5ac Rollup merge of rust-lang#123600 - tisonkun:path_with_extension, r=dtolnay
5e9d445 Attempt to fix CI
d8965d3 add `new_range_api` for RFC 3550
ca0f659 Move exit guard from sys::common::exit_guard to sys::exit_guard.
cf300a7 Update library/std/src/sys/pal/common/exit_guard.rs
ba4c71a add unit tests for extra extension feature
55fc20b update comments
6b7a259 Add experimental raw-dylib feature to std
c452e62 Use windows_targets macro for alloc
521c81a Run alloc sync tests
2fcdebb Improve readability of some fmt code examples
625bcc4 Rollup merge of rust-lang#127320 - ChrisDenton:win-sys, r=Mark-Simulacrum
f8caf5f Rollup merge of rust-lang#127214 - bjorn3:miri_native_unwind, r=oli-obk
1862054 Describe Sized requirements for mem::offset_of
e26c881 impl FusedIterator and a size hint for the error sources iter
8f1c664 core: erase redundant stability attrs in va_list
60c33a5 library: outline VaList into ffi::va_list
03d11c2 Auto merge of rust-lang#126171 - RalfJung:simd_bitmask_multibyte, r=workingjubilee
297850a Add more checks for pointers with vtable meta
f58a3d6 Improve dead code analysis
515bd30 Add comments to windows_targets.rs
89d2de0 Update windows-bindgen to 0.58.0
0860a04 also remove redundant requirements from offset()
6f80604 offset_from: "the difference must fit in an isize" is a corollary
de4f5c2 Rollup merge of rust-lang#127303 - cuishuang:master, r=jhpratt
56c73c3 Rollup merge of rust-lang#127195 - biabbas:vxworks_cleanup, r=jhpratt
5dfdef7 Rollup merge of rust-lang#126792 - wooden-worm:master, r=Mark-Simulacrum
4df2059 chore: remove repeat words
acbefbb impl PathBuf::add_extension and Path::with_added_extension
13d5a42 Auto merge of rust-lang#127226 - mat-1:optimize-siphash-round, r=nnethercote
ed3d487 stir the hash state a little to avoid prefix collisions
5ca124f Add more test cases for path comparisons
33bc557 Add test case demonstrating equality of paths "foo/bar" and "foobar"
079f999 Move unique_thread_exit call to lang_start_internal so it is not in a generic function, and wrap it in `catch_unwind`
47d0cbc Remove Miri special-case
596be7e Use pthread_t instead of numeric thread id
2e90f6f Use libc::pause instead of std::thread::park in wait-for-exit loop
1fd23e8 core: Limit four f16 doctests to x86_64 linux
e6f15c5 std: Set has_reliable_f16 to false for MIPS targets in build.rs
67535b6 library/std/build.rs: "powerpc64le" is not a target_arch
5b0d82f Rollup merge of rust-lang#127204 - dimpolo:stabilize_atomic_bool_fetch_not, r=jhpratt
b184a84 Rollup merge of rust-lang#123588 - tgross35:stabilize-assert_unchecked, r=dtolnay
2a81053 Fall back on remove dir implementation for vxworks
a8b6d0a Rollup merge of rust-lang#127230 - hattizai:patch01, r=saethlin
4d7cbb2 chore: remove duplicate words
645e9f2 Optimize SipHash by reordering compress instructions
c5ab1f0 Rollup merge of rust-lang#127128 - elomatreb:elomatreb/stabilize-duration_abs_diff, r=joboet
f090672 Rollup merge of rust-lang#126732 - StackOverflowExcept1on:master, r=m-ou-se
1dc4f05 Use the native unwind function in miri where possible
4fff335 Avoid MIR bloat in inlining
4385efd Stabilize atomic_bool_fetch_not
6c3359c Rollup merge of rust-lang#127182 - danielhuang:patch-4, r=Nilstrieb
a0a438a Remove unqualified import io:: Error for vxworks as all Error references are qualified in process_vxworks.rs
2a65e9f Auto merge of rust-lang#127026 - Urgau:cleanup-bootstrap-check-cfg, r=Kobzol
bba2200 LinkedList's Cursor: method to get a ref to the cursor's list
40a9be9 Update ip_addr.rs
986dbd1 Print `TypeId` as hex for debugging
f27723e Rollup merge of rust-lang#127069 - Sky9x:fmt-pointer-use-addr, r=Nilstrieb
b068fce Rollup merge of rust-lang#126895 - betelgeuse:improve_simd_gather_documentation, r=Amanieu
a6b22e9 Rollup merge of rust-lang#127134 - tgross35:typeid-debug, r=Nilstrieb
7f0bb45 Rollup merge of rust-lang#126906 - GrigorenkoPV:fixme-split_at_first, r=Mark-Simulacrum
b0feb54 Rollup merge of rust-lang#126705 - safinaskar:panic, r=Mark-Simulacrum
b8977f5 Auto merge of rust-lang#127133 - matthiaskrgr:rollup-jxkp3yf, r=matthiaskrgr
affa2f9 Print `TypeId` as a `u128` for `Debug`
05a472c Rollup merge of rust-lang#127122 - TDecking:div_ceil, r=Nilstrieb
9b3a511 Auto merge of rust-lang#120639 - fee1-dead-contrib:new-effects-desugaring, r=oli-obk
f96a321 Stabilize `duration_abs_diff`
bf9096f small correction to fmt::Pointer impl
171f5db Auto merge of rust-lang#127121 - GuillaumeGomez:rollup-xjjjckn, r=GuillaumeGomez
50a6646 Remove uneccessary condition in `div_ceil`
7914389 Updated docs on `#[panic_handler]` in `library/core/src/lib.rs`
1858bdc Rollup merge of rust-lang#127073 - Sky9x:unnecessary-seqcst, r=Nilstrieb
aaed209 Rollup merge of rust-lang#127072 - Sky9x:docs-includes-vs-does-include, r=scottmcm
e5a577d Auto merge of rust-lang#127119 - RalfJung:miri-sync, r=RalfJung
77a5b51 Rollup merge of rust-lang#126953 - joboet:lazy_key, r=jhpratt
8641f6a Merge from rustc
402992c Rollup merge of rust-lang#127071 - Sky9x:remove-ptr-to-from-bits, r=scottmcm
0a2d8e4 Rollup merge of rust-lang#127070 - Sky9x:unit-const-param-ty, r=BoxyUwU
663f3d5 Rollup merge of rust-lang#127055 - shepmaster:hash-finish-must-use, r=dtolnay
729a10a address review comments
db228b8 general fixups and turn `TODO`s into `FIXME`s
47492c9 Implement `Min` trait in new solver
cc4a029 implement new effects desugaring
d6fadf5 std: add safety comments
8c3c7dc Rollup merge of rust-lang#126970 - DaniPopes:simplify-str-clone_into, r=cuviper
ae98528 Rollup merge of rust-lang#126956 - joboet:fmt_no_extern_ty, r=RalfJung
652f0b8 Merge from rustc
48dc678 Remove unnecessary SeqCst in `impl fmt::Pointer for AtomicPtr`
e6e5e84 docs: say "includes" instead of "does include"
a722d39 Remove (deprecated & unstable) {to,from}_bits pointer methods
2ed9c9f add () to the marker_impls macro for ConstParamTy
fdfe014 Mark `Hasher::finish` as #[must_use]
2bd2069 fix least significant digits of f128 associated constants
8db57c2 core: improve comment
1f8c8f4 Cleanup bootstrap check-cfg
6c38c60 Rollup merge of rust-lang#126980 - Borgerr:fix-extendfromslice-check, r=workingjubilee
a2dc9b5 Rollup merge of rust-lang#126929 - nnethercote:rm-__rust_force_expr, r=oli-obk
cf231e8 Merge from rustc
a8b311e Auto merge of rust-lang#126608 - tgross35:f16-f128-library, r=Mark-Simulacrum
4788a93 std: test a variety of ways to extend a Wtf8Buf
57c2de8 set self.is_known_utf8 to false in extend_from_slice
c14a130 Rollup merge of rust-lang#126879 - the8472:next-chunk-filter-drop, r=cuviper
f6fdef3 core: avoid `extern` types in formatting infrastructure
43a865a fix UI test, simplify error message
ff33a66 regression test for leaks in the the Filter::next_chunk implementation
f90972a add comments explaining optimizations for Filter::next_chunk
4039a7f fix Drop items getting leaked in Filter::next_chunk
0351c53 Simplify `str::clone_into`
5aedb8a Rollup merge of rust-lang#126946 - cyrgani:patch-1, r=compiler-errors
5664da3 Rollup merge of rust-lang#126927 - workingjubilee:vaargsafe-is-unsafe, r=joboet
9273373 Rollup merge of rust-lang#126885 - Borgerr:rm_internal_pathbuf_asmutvec, r=workingjubilee
46074aa Rollup merge of rust-lang#126302 - mu001999-contrib:ignore/default, r=michaelwoerister
0fe5362 Stabilize const unchecked conversion from u32 to char
9dcaa15 std: separate TLS key creation from TLS access
5d08a54 Detect unused structs which derived Default
e6c45e4 `PathBuf::as_mut_vec` removed and verified for UEFI and Windows platforms rust-lang#126333
7cec6ef remove references to `PathBuf::as_mut_vec` in `PathBuf::_set_extension`
37f78f4 inner truncate methods for UEFI platforms
cfb8021 rust-lang#126333 remove `PathBuf::as_mut_vec` reference at top of `PathBuf::_push`
3edb521 simd_bitmask intrinsic: add a non-power-of-2 multi-byte example
2ddf794 Add missing slash in const_eval_select doc comment
19cfdb2 Add tests for `f16` and `f128`
561daff Add more `f16` and `f128` library functions and constants
6cb3d34 Add doctests to existing `f16` and `f128` functions
b0e0503 Add build.rs config for reliable `f16` and `f128`
028026b Remove `__rust_force_expr`.
1069a68 core: VaArgSafe is an unsafe trait
a451b2a Auto merge of rust-lang#126852 - scottmcm:more-checked-math-tweaks, r=Amanieu
17d03b9 Check that we get somewhat sane PIDs when spawning with pidfds
4c9a96e more fine-grained feature-detection for pidfd spawning
bf06e43 document safety properties of the internal Process::new constructor
9212236 use pidfd_spawn for faster process creation when pidfds are requested
4815f29 document the cvt methods
1bd207e Rollup merge of rust-lang#126904 - GrigorenkoPV:nonzero-fixme, r=joboet
2676918 Rollup merge of rust-lang#125575 - dingxiangfei2009:derive-smart-ptr, r=davidtwco
9dcffa5 Rollup merge of rust-lang#125082 - kpreid:const-uninit, r=dtolnay
cf34f71 Replace `MaybeUninit::uninit_array()` with array repeat expression.
e51d8a2 Auto merge of rust-lang#126523 - joboet:the_great_big_tls_refactor, r=Mark-Simulacrum
2b8c7a3 Small fixme in core now that split_first has no codegen issues
532304b Small fixme in core now that NonZero is generic
5ae0378 std: fix wasm builds
ae08c58 Rollup merge of rust-lang#126213 - zachs18:atomicbool-u8-i8-from-ptr-alignment, r=Nilstrieb
071e80d Fix simd_gather documentation
0c4a661 wasm64 build with target-feature=+simd128,+atomics
36a20f7 Reword docs for `f32` and `f64`
6839ec5 Extract repeated constants from `f32` and `f64` source
c26bd79 Rollup merge of rust-lang#126854 - devnexen:std_unix_os_fallback_upd, r=Mark-Simulacrum
828e528 Rollup merge of rust-lang#126807 - devnexen:copy_file_macos_simpl, r=Mark-Simulacrum
e4bc79d Also get `add nuw` from `uN::checked_add`
7c83a04 SmartPointer derive-macro
f0b95fc fix build
12ec5b7 Rollup merge of rust-lang#126783 - tguichaoua:fix_tcplistener_into_incoming_issue_number, r=workingjubilee
eb265d0 std::unix::os::home_dir: fallback's optimisation.
a48f3d6 Auto merge of rust-lang#126838 - matthiaskrgr:rollup-qkop22o, r=matthiaskrgr
ec8af4b Rollup merge of rust-lang#126552 - fee1-dead-contrib:rmfx, r=compiler-errors
6d6ba92 Rollup merge of rust-lang#126140 - eduardosm:stabilize-fs_try_exists, r=Amanieu
e1edea8 Auto merge of rust-lang#116113 - kpreid:arcmut, r=dtolnay
49d4fdb Generalize `{Rc,Arc}::make_mut()` to unsized types.
5ac719e Replace `WriteCloneIntoRaw` with `CloneToUninit`.
a4ca461 Add `core::clone::CloneToUninit`.
7836843 Auto merge of rust-lang#126750 - scottmcm:less-unlikely, r=jhpratt
934e728 Auto merge of rust-lang#124101 - the8472:pidfd-methods, r=cuviper
c2ec99b to extract a pidfd we must consume the child
f7cf777 Add PidFd::{kill, wait, try_wait}
d688595 std::unix::fs: copy simplification for apple.
bb602cf Auto merge of rust-lang#125853 - tesuji:promote-fail-fast, r=cjgillot
1f17936 update intrinsic const param counting
5e7ce0b Remove `feature(effects)` from the standard library
8902c17 Auto merge of rust-lang#126781 - matthiaskrgr:rollup-5u4pens, r=matthiaskrgr
54eaed7 fix issue number
2e01ae3 Rollup merge of rust-lang#126613 - tgross35:log-test-update, r=cuviper
306d7bf Stop using `unlikely` in `strict_*` methods
a8ab1ce [GVN] Add tests for generic pointees with PtrMetadata
a272844 Don't perform mitigation for thread-unsafe libc::exit under Miri.
5035a17 fix rustdoc URL
1530977 On `target_os = "linux"`, ensure that only one Rust thread calls `libc::exit` or returns from `main`.
7e940ba Auto merge of rust-lang#126578 - scottmcm:inlining-bonuses-too, r=davidtwco
9a945fd Auto merge of rust-lang#124032 - Voultapher:a-new-sort, r=thomcc
dbaf524 Rollup merge of rust-lang#126737 - fee1-dead-contrib:rm-const-closures, r=compiler-errors
0f6922d Fix wrong big O star bracing in the doc comments
7bf7f57 Remove `feature(const_closures)` from libcore
b4e2e4a Auto merge of rust-lang#126736 - matthiaskrgr:rollup-rb20oe3, r=matthiaskrgr
0829ab8 Rollup merge of rust-lang#126717 - nnethercote:rustfmt-use-pre-cleanups, r=jieyouxu
f1c9c80 Rollup merge of rust-lang#126711 - GKFX:const-option-as-slice, r=oli-obk
e057232 Auto merge of rust-lang#116088 - nbdd0121:unwind, r=Amanieu,RalfJung
13ea648 Stabilize `PanicInfo::message()` and `PanicMessage`
b6a3858 Rollup merge of rust-lang#126703 - the8472:on-blackbox-crypto-use, r=scottmcm
847726d Shrink some slice iterator MIR
1ba2fa4 Stabilize `hint_assert_unchecked`
9d0041c Update documentation for `hint::assert_unchecked`
e3e84a7 Add blank lines after module-level `//` comments.
36ad0db Add blank lines after module-level `//!` comments.
4e67110 Convert some module-level `//` and `///` comments to `//!`.
669d6fc Make Option::as_[mut_]slice const
4ae781c reword the hint::blackbox non-guarantees
dd7c901 core: add tracking issue for `array::repeat`
5ddeaca core: simplify implementation of `array::repeat`, address other nits
62f7a4e core: implement `UncheckedIterator` for `RepeatN`
387fd1f core: implement `array::repeat`
3fc18d0 Add a hack to prevent proc_macro misopt in CI
a95938d Stabilise c_unwind
2a5e5b8 Rollup merge of rust-lang#125787 - Oneirical:infinite-test-a-novel, r=jieyouxu
227994d try implementing suggestions
78867ab run_make_support nm implementation + bin-emit-no-symbols rmake rewrite
76e61bf Replace `move||` with `move ||` in `compiler/` and `library/`
13a31b6 Auto merge of rust-lang#126330 - m-ou-se:panic-message-type, r=Amanieu
42802a3 Print the tested value in int_log tests
ea1ab74 Add missing CopyMarker impl
384c205 Revert panic_safe test changes
ca458ba Add PanicMessage type for PanicInfo::message().
2238945 Add tracking issue to async_drop API
0b3227b std: rename module for clarity
2b9a4f3 std: update TLS module documentation
00d4964 std: use the `c_int` from `core::ffi` instead of `libc`
bd3b9ec std: simplify `#[cfg]`s for TLS
78eaad5 Fix unintended regression for Freeze + Copy types
8cd20cb Auto merge of rust-lang#126569 - jieyouxu:rollup-1uvkb2y, r=jieyouxu
c1acd7a Rollup merge of rust-lang#126531 - slanterns:error_provider, r=workingjubilee
cd1c998 Rollup merge of rust-lang#126468 - RalfJung:euclid, r=Mark-Simulacrum
2730879 Rollup merge of rust-lang#126346 - hermit-os:fd, r=Amanieu
ebbce69 Rollup merge of rust-lang#126288 - x4exr:patch-1, r=dtolnay
4aa43c7 Auto merge of rust-lang#125720 - folkertdev:optimize_for_size-ptr-rotate, r=Amanieu
7912329 doc: Added commas where needed
48e1578 Fix doc-link issue
489dfce Remove reliance on const_trait in sort implementations
89b5784 std: move `sys_common::backtrace` to `sys`
90dbe22 use rustc-dep-of-std in panic_unwind
6832ad3 Rollup merge of rust-lang#126539 - lukaslueg:patch-1, r=jhpratt
04e46c2 Rollup merge of rust-lang#125112 - tbu-:pr_create_dir_all_empty, r=dtolnay
e77b474 Update `Arc::try_unwrap()` docs
83c530f Apply review comments
ae7f43e Auto merge of rust-lang#126299 - scottmcm:tune-sliceindex-ubchecks, r=saethlin
339f266 Redo SliceIndex implementations
2388743 update comment
4cc1c37 Rollup merge of rust-lang#126229 - ChrisDenton:bindgen, r=Mark-Simulacrum
b40c54b std: refactor the TLS implementation
7e3c4f8 Auto merge of rust-lang#126518 - matthiaskrgr:rollup-wb70rzq, r=matthiaskrgr
2678593 std: suggest OnceLock over Once
b509ed2 Polish `std::path::absolute` documentation.
c3c1757 Auto merge of rust-lang#126473 - matthiaskrgr:rollup-8w2xm09, r=matthiaskrgr
a135342 Rollup merge of rust-lang#126285 - kpreid:unique-rc, r=dtolnay
7fafb6d Rollup merge of rust-lang#126266 - tbu-:pr_doc_alloc_default_system, r=jhpratt
afee9f5 Rollup merge of rust-lang#126135 - hermit-os:fuse, r=jhpratt
4a32b4b Rollup merge of rust-lang#123769 - dtolnay:literal, r=fee1-dead
3909d51 div_euclid, rem_euclid: clarify/extend documentation
ca52a2c Rollup merge of rust-lang#126351 - devnexen:to_sol11_upd, r=ChrisDenton
369fa55 Rollup merge of rust-lang#126402 - firefighterduck:fix-unsafe-precon-copy, r=Nilstrieb
2acb995 Rollup merge of rust-lang#126390 - Kriskras99:master, r=Nilstrieb
b3c1dcb Rollup merge of rust-lang#126360 - compiler-errors:uplift-structural-traits, r=lcnr
bdb9aa2 Rollup merge of rust-lang#123726 - jieyouxu:command-new-docs, r=Nilstrieb
307d1af Remove superfluous escaping from byte, byte str, and c str literals
78d94ee LangItem-ify Coroutine trait in solvers
891f00c fix wrong assert_unsafe_precondition message for core::ptr::copy
9adf702 Rollup merge of rust-lang#126384 - RalfJung:is_none_or, r=workingjubilee
02cb1e9 Rollup merge of rust-lang#126347 - slanterns:try_simplify, r=scottmcm
fa2a54a Fix wording in {checked_}next_power_of_two
3ef894f add tracking issue for is_none_or
a5fe19d std::unix::fs::link using direct linkat call for Solaris and macOs.
9921cd2 Rollup merge of rust-lang#126328 - RalfJung:is_none_or, r=workingjubilee
93583a6 Simplify `try_*` on `Iterator`
47090b1 export std::os::fd module on HermitOS
17c90d8 Auto merge of rust-lang#126273 - pietroalbini:pa-bootstrap-update, r=Mark-Simulacrum
b482e06 add is_none_or
027c82e Rollup merge of rust-lang#126322 - m-ou-se:panicinfo-and-panicinfo-2, r=RalfJung
db03ec6 Rollup merge of rust-lang#126242 - yaahc:simplify-provider, r=jhpratt
956efde Rollup merge of rust-lang#126039 - dpaoliello:arm64ecbuild, r=davidtwco
3acb41f Fix deprecated version.
bc5e618 Update doc comment on PanicInfo::message().
249d63e Use payload_as_str instead of two downcasts.
15677e9 Fix deprecation version.
a239d5b Clarify doc comment.
209f8c8 Auto merge of rust-lang#126319 - workingjubilee:rollup-lendnud, r=workingjubilee
6ec98e7 Rollup merge of rust-lang#126305 - workingjubilee:fix-os-string-to-string-utf8-invariant, r=joboet
80467da Rollup merge of rust-lang#126287 - nnethercote:reformat-cranelift-patch, r=bjorn3
5760a4e Rollup merge of rust-lang#126281 - ChrisDenton:env, r=jhpratt
439c2ae Rollup merge of rust-lang#126249 - workingjubilee:simplify-try-map-signature, r=scottmcm
23e3dbf Rollup merge of rust-lang#126210 - lolbinarycat:ptr_doctest_assert, r=workingjubilee
d469394 Rollup merge of rust-lang#123374 - mgeier:doc-slice-from-raw-parts, r=scottmcm
63fe960 Require any function with a tait in its signature to actually constrain a hidden type
e1d73c2 Revert "Rollup merge of rust-lang#125362 - joboet:tait_hack, r=Nilstrieb"
382ed52 Make PathBuf less Ok with adding UTF-16 then `into_string`
548e7a4 Update a cranelift patch file for formatting changes.
8ccbe9e `UniqueRc`: support allocators and `T: ?Sized`.
b3dcee6 set_env: State the conclusion upfront
f56c023 Rename `std::fs::try_exists` to  `std::fs::exists` and stabilize fs_try_exists
c16d8b1 Unify guarantees about the default allocator
d8fe589 remove cfg(bootstrap)
a2ff49b replace version placeholder
f72e4a9 Formatting.
0503ca7 Bump deprecation of std's PanicInfo alias to 1.82.0.
fea6b03 Add PanicHookInfo::payload_as_str().
0c8a9e0 Fix display of panic message in recursive panic.
2f85702 Mention core's PanicInfo in error.md.
ad0667f Add note on panic payload type.
518722e Downcast panic payload to String too in example.
c4dea81 Move deprecation of std::panic::PanicInfo to 1.80.0.
143e4c4 Fix deprecation version.
c6749ae Rename std::panic::PanicInfo to PanicHookInfo.
db2e055 Formatting.
51f20ac Fix invalid markdown/html.
d4b7304 Reorder body of begin_panic for consistency.
373fb60 Impl Display for PanicPayload to simplify things.
224d45c Use unnamed lifetimes for [..]Payload impl blocks.
cf984e0 Move downcasting panic payload to str to a function.
a18eeac Mark some PanicInfo methods as #[inline] for consistency.
47f359b Remove std::panic::PanicInfo::internal_constructor+set_payload.
701d6a2 Remove core::panic::PanicInfo::internal_constructor.
cca865d Update doc comment about core::panicking.
221a90c Fix doc link.
d6658a5 Add core::panic::PanicInfo::payload() for compatibility.
ca0bfeb Document difference between core and std's PanicInfo.
702405e Split core's PanicInfo and std's PanicInfo.
019e01f Skip fast path for dec2flt when optimize_for_size
483f641 Simplify `[T; N]::try_map` signature
8b6f468 Simplify provider api to improve llvm ir
c8170e6 Rollup merge of rust-lang#126212 - SteveLauC:fix/haiku, r=joboet
58bb5cf Rollup merge of rust-lang#126191 - ivan-shrimp:nonzero_doc, r=scottmcm
d2f8ddf Bump windows-bindgen to 0.57
02bf152 Clarify `Command::new` behavior if passed programs with arguments
e17d6b9 Remove some unused crate dependencies.
5840184 Update docs for AtomicU8/I8.
8791549 fix: build on haiku
263861f Update safety docs for AtomicBool::from_ptr.
e25ae61 docs(core): make more const_ptr doctests assert instead of printing
cf9de23 Auto merge of rust-lang#126205 - jieyouxu:rollup-s64z5ng, r=jieyouxu
c5da756 Rollup merge of rust-lang#126194 - ChrisDenton:winerror, r=Mark-Simulacrum
c4bd74c Rollup merge of rust-lang#125253 - sunsided:feature/FRAC_1_SQRT_PI, r=Mark-Simulacrum
c9c5d8f Auto merge of rust-lang#126193 - RalfJung:miri-sync, r=RalfJung
e39299d Migrate more things to WinError
0df0a38 fix `NonZero` doctest inconsistencies
818933d Rollup merge of rust-lang#126168 - devnexen:current_exe_haiku_simpl, r=ChrisDenton
a9bd569 Rollup merge of rust-lang#126146 - devnexen:signal_fbsd, r=ChrisDenton
05812a0 Merge from rustc
56bdaf3 std::unix::os current_exe implementation simplification for haiku.
e6c378f Auto merge of rust-lang#125966 - schvv31n:impl_os_string_pathbuf_leak, r=workingjubilee
e000ecb std::unix::process adding few specific freebsd signals to be able to id.
67454f5 Rollup merge of rust-lang#126138 - wbk:patch-1, r=lqd
ca932c8 Rollup merge of rust-lang#125998 - devnexen:get_mode_illumos, r=Nilstrieb
397e9cb Rollup merge of rust-lang#125951 - slanterns:error_in_core_stabilization, r=Amanieu
4655eca Fix typo in docs for std::pin
bb2e2d9 add HermitOS support of vectored read/write operations
dd7ccb7 Rollup merge of rust-lang#126089 - wutchzone:option_take_if, r=scottmcm
199da77 Rollup merge of rust-lang#126030 - ChrisDenton:update-wingen-readme, r=Mark-Simulacrum
8a4b11a Rollup merge of rust-lang#124012 - slanterns:as_slice_stabilize, r=BurntSushi
05a92c2 Auto merge of rust-lang#126110 - workingjubilee:backtrace-0.3.73, r=workingjubilee
cd73cbe Update backtrace to 0.3.73
c6e53ce Merge from rustc
3b60335 Rollup merge of rust-lang#125606 - diondokter:opt-size-int-fmt, r=cuviper
7014731 fix doc comments about `error_generic_member_access`
3f48168 Stabilize `error_in_core`
20f15f4 fixed memory leaks in PathBuf::leak & OsString::leak tests
fa66a61 Rollup merge of rust-lang#126096 - c410-f3r:tests-tests-tests, r=jhpratt
5736944 [RFC-2011] Allow `core_intrinsics` when activated
dfddd7e Stabilize Option::take_if
051c6c6 Raise `DEFAULT_MIN_STACK_SIZE` to at least 64KiB
29932f3 Auto merge of rust-lang#126038 - matthiaskrgr:rollup-h4rm3x2, r=matthiaskrgr
149a237 Promote `arm64ec-pc-windows-msvc` to tier 2
4a81c12 Rollup merge of rust-lang#126032 - ChrisDenton:update-docs, r=joboet
7450cf0 Rollup merge of rust-lang#125800 - fortanix:raoul/rte-99-fix_mut_static_task_queue, r=jethrogb
ed91d55 Rollup merge of rust-lang#125940 - devnexen:unix_fs_netbsd_get_path, r=cuviper
bf7430f Update description of the `IsTerminal` example
91c8b23 Update `./x fmt` command
1632165 Rollup merge of rust-lang#125995 - kpreid:const-uninit-stable, r=Nilstrieb
2c5f1ac Rollup merge of rust-lang#125982 - xTachyon:fix-linked-list, r=jhpratt
80cee25 Rollup merge of rust-lang#123168 - joshtriplett:size-of-prelude, r=Amanieu
28dc012 std::unix::fs::get_mode implementation for illumos/solaris.
14a6f29 Use inline const instead of unsafe to implement `MaybeUninit::uninit_array()`.
a2c3406 Use inline const instead of unsafe to construct arrays in `MaybeUninit` examples.
f8ee355 Rollup merge of rust-lang#125932 - schvv31n:patch-1, r=lqd
49dad46 Rollup merge of rust-lang#125927 - ferrocene:lw-alloc-unwind-test, r=pietroalbini
e38c13a Rollup merge of rust-lang#125696 - workingjubilee:please-dont-say-you-are-lazy, r=Nilstrieb
1764910 Rollup merge of rust-lang#106186 - rossmacarthur:ft/iter-chain, r=Amanieu
fbb5246 Make deleting on LinkedList aware of the allocator
85aa4b6 impl OsString::leak & PathBuf::leak
b19dd14 Add function `core::iter::chain`
25245bb Rollup merge of rust-lang#125919 - tbu-:pr_fix_typo, r=lqd
a415ddd Rollup merge of rust-lang#125504 - mqudsi:once_nominal, r=cuviper
ea7e91c Let compiler auto impl `Send` for `Task`
55f3d10 Store `Task::p` as `dyn FnOnce() + Send`
92b604f Pass function for `Thread` as `Send` to `Thread::imp`
175ad22 Auto merge of rust-lang#125525 - joboet:tls_accessor, r=cuviper
31e0022 std::unix::fs::get_path: using fcntl codepath for netbsd instead.
82e24ad Fix typo in the docs of `HashMap::raw_entry_mut`
fcc07af Ignore `vec_deque_alloc_error::test_shrink_to_unwind` test on non-unwind targets
6ef46b3 Auto merge of rust-lang#125912 - nnethercote:rustfmt-tests-mir-opt, r=oli-obk
7927138 Remove stray "this"
06d9b0e Add "OnceList" example to motivate OnceLock
6d001c5 Move first OnceLock example to LazyLock
7e47256 Differ LazyLock vs. OnceLock in std::sync overview
a198721 Explain LazyCell in core::cell overview
ae5598a Reformat `mir!` macro invocations to use braces.
494f05c Rollup merge of rust-lang#125898 - RalfJung:typo, r=Nilstrieb
7881d33 Rollup merge of rust-lang#125884 - Rua:integer_sign_cast, r=Mark-Simulacrum
380d9a3 Rollup merge of rust-lang#121062 - RustyYato:f32-midpoint, r=the8472
81b9e26 Wording of the documentation
1c707b6 typo: depending from -> on
fe5adb9 Auto merge of rust-lang#125577 - devnexen:netbsd_stack_min, r=joboet
876458e Implement feature `integer_sign_cast`
e929c7f Change f32::midpoint to upcast to f64
cd04000 Auto merge of rust-lang#124294 - tspiteri:ilog-first-iter, r=the8472
7f0b19d stablize `const_binary_heap_constructor` & create an unstable feature `const_binary_heap_new_in` for `BinaryHeap::new_in`
5c2e274 Rollup merge of rust-lang#125730 - mu001999-contrib:clippy-fix, r=oli-obk
9fe1803 Auto merge of rust-lang#124662 - zetanumbers:needs_async_drop, r=oli-obk
8943103 Avoid `mut` and simplify initialization of `TASK_QUEUE`
ba98164 Auto merge of rust-lang#124636 - tbu-:pr_env_unsafe, r=petrochenkov
bbaaa79 Rollup merge of rust-lang#125746 - jmillikin:duration-from-weeks-typo, r=lqd
1329a62 Rollup merge of rust-lang#125739 - RalfJung:drop-in-place-docs, r=workingjubilee
8883bcf Rollup merge of rust-lang#125342 - tbu-:pr_doc_write, r=ChrisDenton
14d5dcb explain what the open questions are, and add a Miri test for that
6f01ba7 Apply x clippy --fix and x fmt
c9c0713 Fix copy-paste error in `Duration::from_weeks` panic message.
e935223 Rollup merge of rust-lang#125733 - compiler-errors:async-fn-assoc-item, r=fmease
4feb881 Elaborate about modifying env vars in multi-threaded programs
2500719 Add note about safety of `std::env::set_var` on Windows
c4b1ff8 Make `std::env::{set_var, remove_var}` unsafe in edition 2024
07d3009 drop_in_place: weaken the claim of equivalence with drop(ptr.read())
99eabb4 Add lang item for AsyncFnKindHelper::Upvars
a8f468f Add lang item for Future::Output
2e1896e Add lang items for AsyncFn's associated types
d82378a [ACP 362] genericize `ptr::from_raw_parts`
619e33b Add FRAC_1_SQRT_2PI doc alias to FRAC_1_SQRT_TAU
1265244 make `ptr::rotate` smaller when using `optimize_for_size`
bb6d4eb Add safety comment to fix tidy
c8b699c Optimize async drop glue for some old types
0444ab8 Add FRAC_1_SQRT_2PI constant to f16/f32/f64/f128
1aaf0a9 Rollup merge of rust-lang#125226 - madsmtm:fix-mac-catalyst-tests, r=workingjubilee
565dce2 Rollup merge of rust-lang#124251 - scottmcm:unop-ptr-metadata, r=oli-obk
a4025eb Add custom mir support for `PtrMetadata`
87b9f24 Add an intrinsic for `ptr::metadata`
914d2c0 Rollup merge of rust-lang#125637 - nnethercote:rustfmt-fixes, r=GuillaumeGomez
3170156 Make more of the test suite run on Mac Catalyst
9753338 Disable stack overflow handler tests on iOS-like platforms
3548389 Don't format `tests/run-make/*/rmake.rs`.
6fcf130 Rollup merge of rust-lang#125647 - tspiteri:track-lazy_cell_consume, r=workingjubilee
385e1b8 Rollup merge of rust-lang#125551 - clarfonthey:ip-bits, r=jhpratt
457f5ee update tracking issue for lazy_cell_consume
893db81 Auto merge of rust-lang#125636 - workingjubilee:bump-backtrace-0.3.72, r=workingjubilee
6785858 Sync libstd deps with backtrace
b214872 Bump backtrace to 0.3.72
0ef7706 Auto merge of rust-lang#125609 - diondokter:opt-size-char-count, r=thomcc
3578f42 Rollup merge of rust-lang#124870 - Lokathor:update-result-docs, r=dtolnay
d4fb66b Always use the general case char count
1e8098b Size optimize int formatting
a74509c Rollup merge of rust-lang#125559 - scottmcm:simplify-shift-ubcheck, r=workingjubilee
bc346a0 Auto merge of rust-lang#122079 - tbu-:pr_copy_file_range_probe, r=the8472
fdcee4d std::pal::unix::thread fetching min stack size on netbsd.
d14171d Auto merge of rust-lang#125574 - matthiaskrgr:rollup-1oljoup, r=matthiaskrgr
3e545bc Rollup merge of rust-lang#125571 - tesuji:dummy-pi, r=Nilstrieb
8409442 Rollup merge of rust-lang#125561 - Cyborus04:stabilize-slice-flatten, r=scottmcm
8981ee4 Auto merge of rust-lang#125570 - tesuji:stdout-handle, r=Nilstrieb
addaaed f32: use constants instead of reassigning a dummy value as PI
8a6d10d use proper name instead of magic number
64671fa Stabilize `slice_flatten`
4014081 Auto merge of rust-lang#125070 - tbu-:pr_set_extension_panic, r=jhpratt
f54c557 Auto merge of rust-lang#125518 - saethlin:check-arguments-new-in-const, r=joboet
a4bac2b It seems that anchor names are implicitly all lowercase
7cddfd4 Simplify the `unchecked_sh[lr]` ub-checks a bit
805f56b Fix URL target, it's in the module not the type.
3b77f19 github showed that weird.
65726c0 correct for copy paste errors when fixing wrapping.
613145f Resolve rust-lang#124870 (comment)
9677b70 revert to the inconsistent paragraph wrapping.
bf3ca98 Rollup merge of rust-lang#124667 - newpavlov:stabilize_div_duration, r=jhpratt
4af28c4 Rollup merge of rust-lang#123803 - Sp00ph:shrink_to_fix, r=Mark-Simulacrum
79e1daf Rollup merge of rust-lang#122986 - taiki-e:aix-c-char, r=Mark-Simulacrum
0b13a6c Rollup merge of rust-lang#121377 - pitaj:lazy_cell_fn_pointer, r=dtolnay
b1ac7da Stabilise ip_bits feature
23bb5bc Auto merge of rust-lang#121571 - clarfonthey:unchecked-math-preconditions, r=saethlin
c11b36a Rollup merge of rust-lang#125527 - programmerjake:patch-2, r=workingjubilee
d6812d5 Rollup merge of rust-lang#125498 - zmodem:avx512er, r=workingjubilee
f52291b Rollup merge of rust-lang#125478 - Urgau:check-cfg-config-bump-stage0, r=Mark-Simulacrum
38dcab9 Rollup merge of rust-lang#125271 - RalfJung:posix_memalign, r=workingjubilee
29a1b3b Move the checks for Arguments constructors to inline const
5257f3f Add manual Sync impl for ReentrantLockGuard
078095a std: make TLS accessors closures that return pointers
567096d Rollup merge of rust-lang#125497 - meesfrensel:patch-1, r=calebzulawski
dd828cf Stop using the avx512er and avx512pf x86 target features
749b376 Change pedantically incorrect OnceCell/OnceLock wording
2b1602a Fix some SIMD intrinsics documentation
59b5617 Remove now outdated comment since we bumped stage0
6d1cdb5 Add assert_unsafe_precondition to unchecked_{add,sub,neg,mul,shl,shr} methods
ce29159 Simplify environment variable examples
8fa3f60 Document behavior of `create_dir_all` wrt. empty path
dd196e7 Document platform-specifics for `Read` and `Write` of `File`
a71d9d9 Fix c_char on AIX
ce3db1b fix typo
4913884 use posix_memalign on most Unix targets
86878b9 Fix linkchecker doc errors
1bf7a30 Turn bare links into automatic links
736b225 Move BufGuard impl outside of function
a44e7b3 Fix tidy errors
36af639 Replace sort implementations
48a835b Divide float nanoseconds instead of seconds
f84d57f Don't use `T` with both Result and Option, improve explanation.
88338ff Add `size_of`, `size_of_val`, `align_of`, and `align_of_val` to the prelude
5d56638 Panic if `PathBuf::set_extension` would add a path separator
7db52fc Add fn allocator method to rc/sync::Weak. Relax Rc<T>/Arc<T>::allocator to allow unsized T.
43bf016 Suggest borrowing on fn argument that is `impl AsRef`
50d5af4 use teletype on the attribute name
43ae187 Some Result combinations work like an Option.
d0c07aa Move `test_shrink_to_unwind` to its own file.
d77b1cc Fix `VecDeque::shrink_to` UB when `handle_alloc_error` unwinds.
0342284 Use `CURRENT_RUSTC_VERSION`
9eb77db Stabilize `div_duration`
7a6ddb3 Lift the probe code of `copy_file_range` into a function
f5305c1 Add missing .into_iter()
2a5af32 Extend the example code and assert the result
678e5a0 Add "safety" comment
ad38f9b unroll first iter of checked_ilog loop to save one multiplication
dbd03d4 Stabilize `BinaryHeap::as_slice`
08f761f DOC: Add FFI example for slice::from_raw_parts()
30c876c Be stricter with `copy_file_range` probe results
fe05246 Less syscalls for the `copy_file_range` probe
511fe47 Stabilize `LazyCell` and `LazyLock` (`lazy_cell`)

git-subtree-dir: library
git-subtree-split: a2cf636
jaisnan added a commit to jaisnan/rust-dev that referenced this pull request Jul 17, 2024
a2cf636 Rollup merge of rust-lang#127813 - ChrisDenton:win-futex, r=joboet
aeae332 Rollup merge of rust-lang#127763 - ChrisDenton:safe-unsafe-unsafe, r=tgross35
e0ea701 Prevent double reference in generic futex
417b61f Narrow the scope of the ReadFile unsafe block
b4d1392 forbid(unsafe_op_in_unsafe_fn) in sys/os_str
f431b51 Rollup merge of rust-lang#127836 - workingjubilee:forbid-unsafe-ops-in-xous-uefi, r=tgross35
0a024bd Rollup merge of rust-lang#127833 - risc0:erik/zkvm-deny-unsafe, r=workingjubilee
0299bb5 Rollup merge of rust-lang#127807 - ChrisDenton:win-parking, r=joboet
61af010 Rollup merge of rust-lang#127792 - workingjubilee:read-unaligned-is-dwarfier, r=joboet
d3cf2e1 Rollup merge of rust-lang#127444 - Sky9x:cstr-bytes-iter, r=dtolnay
12075d1 Rollup merge of rust-lang#126776 - nnethercote:rustfmt-use-pre-cleanups-2, r=cuviper
00d603f Rollup merge of rust-lang#126271 - diondokter:dec2flt-skip-fast-path, r=tgross35
8490c84 Rollup merge of rust-lang#125206 - mgeisler:simplify-std-env-vars, r=jhpratt,tgross35
a752e3b uefi: Forbid unwrapped unsafe in platform modules
32a1b07 Cfg nit
e189d3b xous: Forbid unwrapped unsafe in platform modules
7ddd7f8 zkvm: add `#[forbid(unsafe_op_in_unsafe_fn)]` in `stdlib`
0723962 Adjust some comments on individual `use` declarations.
4320ba0 Avoid comments that describe multiple `use` items.
1aeddb0 Merge some `core::iter` entries.
7a0b2fb Add unsafe blocks in unsafe Thread::new
8e76b15 Remove `slice_to_end`
e8527cd std: unwrapped unsafe is VERBOTEN!
5e4edba Rollup merge of rust-lang#127789 - Sword-Destiny:master, r=petrochenkov
1b631e5 Use futex.rs for Windows thread parking
d59f862 std: Use read_unaligned for reading DWARF
686f75b Rollup merge of rust-lang#127047 - tspiteri:f128-aconsts-lsd, r=tgross35
8b1d874 deny unsafe_op_in_unsafe_fn for teeos
f8bb325 clean unsafe op in unsafe fn
b597017 clean unsafe op in unsafe fn
9fd9c61 clean unsafe op in unsafe fn
e0c57e4 delete #![allow(unsafe_op_in_unsafe_fn)]
704f56f `impl Send + Sync` and override `count` for the `CStr::bytes` iterator
a778c83 Auto merge of rust-lang#127777 - matthiaskrgr:rollup-qp2vkan, r=matthiaskrgr
6535591 Rollup merge of rust-lang#124921 - RalfJung:offset-from-same-addr, r=oli-obk
ac443f2 Auto merge of rust-lang#127020 - tgross35:f16-f128-classify, r=workingjubilee
57937d7 allow(unsafe_op_in_unsafe_fn) on some functions
94b381d Some Windows functions are safe
f3bb34b Deny more windows unsafe_op_in_unsafe_fn
eae9451 Rollup merge of rust-lang#127750 - ChrisDenton:safe-unsafe-unsafe, r=workingjubilee
6257980 Rollup merge of rust-lang#127744 - workingjubilee:deny-unsafe-op-in-std, r=jhpratt
05614f3 Rollup merge of rust-lang#127712 - ChrisDenton:raw-types, r=workingjubilee
14c24b1 Mark some `f16` and `f128` functions unstably const
1b70afd Move safety comment outside unsafe block
3c286d5 Make os/windows default to deny unsafe in unsafe
d96ed86 Make pal/windows default to deny unsafe in unsafe
bb3f60f Fix Windows 7
9fc6710 Auto merge of rust-lang#127719 - devnexen:math_log_fix_solill, r=Amanieu
decdb06 Don't re-export `c_int` from `c`
a1a1c6a Remove DWORD
7d18991 Remove ULONG
d89bce6 Remove PSRWLOCK
d3205de Remove LPVOID
68ac381 Remove LPSECURITY_ATTRIBUTES
6d037b8 Remove LPOVERLAPPED
61f617d Remove LPCVOID
8a25371 Remove SIZE_T
cd51de1 Remove CHAR
00a5b3b Remove USHORT
d621d21 Remove LPWSTR
0b22ecb Remove UINT
18adcef Remove LONG
4eaaf7d Remove LARGE_INTEGER
aa45985 Remove NonZeroDWORD
d7aa7cf Auto merge of rust-lang#127732 - GrigorenkoPV:teeos-safe-sys-init, r=Amanieu
5ff7b40 std: Unsafe-wrap std::sync
e8fa3ef std: Unsafe-wrap in Wtf8 impl
8c3a9c1 std: Unsafe-wrap std::io
91b7331 std: Directly call unsafe {un,}setenv in env
8c75111 std: Unsafe-wrap OSStr{,ing}::from_encoded_bytes_unchecked
4679f9a std: Unsafe-wrap HashMap::get_many_unchecked_mut
ac0fd27 std: deny(unsafe_op_in_unsafe_fn) but allow sites
f710e38 Add `classify` and related methods for `f16` and `f128`
009660d std: removes logarithms family function edge cases handling for solaris.
3492a6b Auto merge of rust-lang#127728 - matthiaskrgr:rollup-ercdbjd, r=matthiaskrgr
0873299 sys::init is not unsafe on teeos
6c4029a Rollup merge of rust-lang#127592 - tesuji:patch-1, r=Mark-Simulacrum
7cd8086 Auto merge of rust-lang#125935 - madsmtm:merge-os-apple, r=workingjubilee
cfb0556 Merge Apple `std::os` extensions modules into `std::os::darwin`
54435f7 Rollup merge of rust-lang#127704 - workingjubilee:fixup-better-than, r=ChrisDenton
e122949 Auto merge of rust-lang#127706 - workingjubilee:rollup-d07ij30, r=workingjubilee
3033120 Rollup merge of rust-lang#127659 - saethlin:manually-drop-bufwriter, r=joboet
e9eb7de Rollup merge of rust-lang#127446 - zachs18:miri-stdlib-leaks-core-alloc, r=Mark-Simulacrum
3ad2560 Rollup merge of rust-lang#127370 - ChrisDenton:win-sys, r=Mark-Simulacrum
05bf6bc doc: Suggest `str::repeat` over `iter::repeat().take().collect()`
96e8ba7 Fix minor typos in std::process doc on Win argv
6b67c66 Auto merge of rust-lang#126958 - dtolnay:u32char, r=Mark-Simulacrum
591aaaf std::unix::fs: removing, now useless, layers predating macOs 10.10.
94ec6e7 Auto merge of rust-lang#127674 - jhpratt:rollup-0dxy3k7, r=jhpratt
a7c1f60 Rollup merge of rust-lang#127668 - spencer3035:improve-slice-doc, r=jhpratt
1e49e05 Rollup merge of rust-lang#127661 - eduardosm:stabilize-io_slice_advance, r=cuviper
c79e003 Auto merge of rust-lang#127397 - jyn514:multi-thread-panic-hook, r=workingjubilee
206678c Auto merge of rust-lang#126606 - zachs18:patch-2, r=joboet
1bb0350 Updated slice documentation
c8b79dd Use ManuallyDrop in BufWriter::into_parts
6e26e27 Stabilize io_slice_advance
cac6664 Rename the internal `const_strlen` to just `strlen`
39647ab fix interleaved panic output
0476fc4 Rollup merge of rust-lang#127433 - dtolnay:conststrlen, r=workingjubilee
f66bd5f Rollup merge of rust-lang#126827 - the8472:pidfd-spawn, r=workingjubilee
1e5cd21 Rollup merge of rust-lang#124980 - zachs18:rc-allocator, r=Amanieu
949f0d6 Add instability attribute on private const_strlen function
20bfac6 Rollup merge of rust-lang#127422 - greaka:master, r=workingjubilee
f937ef1 Rollup merge of rust-lang#127599 - tgross35:lazy_cell_consume-rename, r=workingjubilee
fde7fd2 Rollup merge of rust-lang#127588 - uweigand:s390x-f16-doctests, r=tgross35
ed47f98 Rollup merge of rust-lang#127572 - tbu-:pr_debug_event_nonpacked, r=jhpratt
e5c8b85 Rollup merge of rust-lang#124599 - estebank:issue-41708, r=wesleywiser
b71b538 Rename `lazy_cell_consume` to `lazy_cell_into_inner`
9efc1cb core: Limit remaining f16 doctests to x86_64 linux
a18fbd0 Rollup merge of rust-lang#127554 - ferrocene:tshepang-add-missing-attribute, r=pietroalbini
e419147 Don't mark `DEBUG_EVENT` struct as `repr(packed)`
4552576 Auto merge of rust-lang#126690 - andyolivares:feature/show_window, r=dtolnay
6f6e343 Rollup merge of rust-lang#127091 - Sky9x:fused-error-sources-iter, r=dtolnay
0d64105 Fixed doc links
4fb7b22 Few changes to doc comments. Added tracking issue number.
fe62f6f Exposing STARTUPINFOW.wShowWindow in CommandExt (show_window function) to control how a new process should display its window (normal, minimized, maximized, etc)
7d20047  do not run test where it cannot run
c5f1c76 Auto merge of rust-lang#127235 - martn3:no-mips-f16, r=tgross35,scottmcm
3fefa04 Rollup merge of rust-lang#127460 - Borgerr:clarify-drop-comment, r=jhpratt
895175a Rollup merge of rust-lang#127355 - aceArt-GmbH:126475, r=oli-obk
57cea32 Rollup merge of rust-lang#120248 - WaffleLapkin:bonk-ptr-object-casts, r=compiler-errors,oli-obk,lnicola
e74955e Attempt to fix CI
e466bf5 Rollup merge of rust-lang#127367 - ChrisDenton:run-sync, r=Nilstrieb
90504f8 Rollup merge of rust-lang#126921 - workingjubilee:outline-va-list, r=Nilstrieb
c6b3f3d Auto merge of rust-lang#127454 - matthiaskrgr:rollup-k3vfen2, r=matthiaskrgr
29d7923 Move/change declaration of `mod exit_guard;`
ecc9025 clarify `sys::unix::fd::FileDesc::drop` comment (rust-lang#66876)
35c5a45 Rollup merge of rust-lang#127447 - RalfJung:once_lock_miri, r=joboet
9f7100d Rollup merge of rust-lang#127354 - nicholasbishop:bishop-sized-doc, r=Nilstrieb
ee06e7d Rollup merge of rust-lang#127297 - the8472:path-new-hash, r=Nilstrieb
2206c6b Rollup merge of rust-lang#127189 - GrigorenkoPV:linkedlist-cursor-list, r=Nilstrieb
41bcc36 Rollup merge of rust-lang#127179 - tgross35:typeid-debug-hex, r=Nilstrieb
7177ac8 once_lock: make test not take as long in Miri
294d87f Remove non-focused memory leak in `std` doctest for Miri.
a86fd0f Specialize `TrustedLen` for `Iterator::unzip()`
5515bba Mitigate focused memory leaks in `core` doctests for Miri.
3a0fe26 Remove non-focused memory leaks in `core` doctests for Miri.
20d6cb3 Mitigate focused memory leaks in `alloc` doctests for Miri.
cac8902 Remove non-focused memory leaks in `alloc` doctests for Miri.
bcdc8e8 Stabilize const_cstr_from_ptr (CStr::from_ptr, CStr::count_bytes)
a48f566 offset_from intrinsic: always allow pointers to point to the same address
9919a83 Mark format! with must_use hint
0907955 as_simd: fix comment to be in line with 507583a (rust-lang#121201)
5569ece Rollup merge of rust-lang#127275 - RalfJung:offset-from-isize-min, r=Amanieu
2337ab5 Rollup merge of rust-lang#125751 - pitaj:new_range_api, r=jhpratt
ad4fde6 Rollup merge of rust-lang#127363 - GuillaumeGomez:improve-fmt-code-readability, r=Amanieu
3eeca5f Rollup merge of rust-lang#127107 - mu001999-contrib:dead/enhance-2, r=pnkfelix
1b5e5ac Rollup merge of rust-lang#123600 - tisonkun:path_with_extension, r=dtolnay
5e9d445 Attempt to fix CI
d8965d3 add `new_range_api` for RFC 3550
ca0f659 Move exit guard from sys::common::exit_guard to sys::exit_guard.
cf300a7 Update library/std/src/sys/pal/common/exit_guard.rs
ba4c71a add unit tests for extra extension feature
55fc20b update comments
6b7a259 Add experimental raw-dylib feature to std
c452e62 Use windows_targets macro for alloc
521c81a Run alloc sync tests
2fcdebb Improve readability of some fmt code examples
625bcc4 Rollup merge of rust-lang#127320 - ChrisDenton:win-sys, r=Mark-Simulacrum
f8caf5f Rollup merge of rust-lang#127214 - bjorn3:miri_native_unwind, r=oli-obk
1862054 Describe Sized requirements for mem::offset_of
e26c881 impl FusedIterator and a size hint for the error sources iter
8f1c664 core: erase redundant stability attrs in va_list
60c33a5 library: outline VaList into ffi::va_list
03d11c2 Auto merge of rust-lang#126171 - RalfJung:simd_bitmask_multibyte, r=workingjubilee
297850a Add more checks for pointers with vtable meta
f58a3d6 Improve dead code analysis
515bd30 Add comments to windows_targets.rs
89d2de0 Update windows-bindgen to 0.58.0
0860a04 also remove redundant requirements from offset()
6f80604 offset_from: "the difference must fit in an isize" is a corollary
de4f5c2 Rollup merge of rust-lang#127303 - cuishuang:master, r=jhpratt
56c73c3 Rollup merge of rust-lang#127195 - biabbas:vxworks_cleanup, r=jhpratt
5dfdef7 Rollup merge of rust-lang#126792 - wooden-worm:master, r=Mark-Simulacrum
4df2059 chore: remove repeat words
acbefbb impl PathBuf::add_extension and Path::with_added_extension
13d5a42 Auto merge of rust-lang#127226 - mat-1:optimize-siphash-round, r=nnethercote
ed3d487 stir the hash state a little to avoid prefix collisions
5ca124f Add more test cases for path comparisons
33bc557 Add test case demonstrating equality of paths "foo/bar" and "foobar"
079f999 Move unique_thread_exit call to lang_start_internal so it is not in a generic function, and wrap it in `catch_unwind`
47d0cbc Remove Miri special-case
596be7e Use pthread_t instead of numeric thread id
2e90f6f Use libc::pause instead of std::thread::park in wait-for-exit loop
1fd23e8 core: Limit four f16 doctests to x86_64 linux
e6f15c5 std: Set has_reliable_f16 to false for MIPS targets in build.rs
67535b6 library/std/build.rs: "powerpc64le" is not a target_arch
5b0d82f Rollup merge of rust-lang#127204 - dimpolo:stabilize_atomic_bool_fetch_not, r=jhpratt
b184a84 Rollup merge of rust-lang#123588 - tgross35:stabilize-assert_unchecked, r=dtolnay
2a81053 Fall back on remove dir implementation for vxworks
a8b6d0a Rollup merge of rust-lang#127230 - hattizai:patch01, r=saethlin
4d7cbb2 chore: remove duplicate words
645e9f2 Optimize SipHash by reordering compress instructions
c5ab1f0 Rollup merge of rust-lang#127128 - elomatreb:elomatreb/stabilize-duration_abs_diff, r=joboet
f090672 Rollup merge of rust-lang#126732 - StackOverflowExcept1on:master, r=m-ou-se
1dc4f05 Use the native unwind function in miri where possible
4fff335 Avoid MIR bloat in inlining
4385efd Stabilize atomic_bool_fetch_not
6c3359c Rollup merge of rust-lang#127182 - danielhuang:patch-4, r=Nilstrieb
a0a438a Remove unqualified import io:: Error for vxworks as all Error references are qualified in process_vxworks.rs
2a65e9f Auto merge of rust-lang#127026 - Urgau:cleanup-bootstrap-check-cfg, r=Kobzol
bba2200 LinkedList's Cursor: method to get a ref to the cursor's list
40a9be9 Update ip_addr.rs
986dbd1 Print `TypeId` as hex for debugging
f27723e Rollup merge of rust-lang#127069 - Sky9x:fmt-pointer-use-addr, r=Nilstrieb
b068fce Rollup merge of rust-lang#126895 - betelgeuse:improve_simd_gather_documentation, r=Amanieu
a6b22e9 Rollup merge of rust-lang#127134 - tgross35:typeid-debug, r=Nilstrieb
7f0bb45 Rollup merge of rust-lang#126906 - GrigorenkoPV:fixme-split_at_first, r=Mark-Simulacrum
b0feb54 Rollup merge of rust-lang#126705 - safinaskar:panic, r=Mark-Simulacrum
b8977f5 Auto merge of rust-lang#127133 - matthiaskrgr:rollup-jxkp3yf, r=matthiaskrgr
affa2f9 Print `TypeId` as a `u128` for `Debug`
05a472c Rollup merge of rust-lang#127122 - TDecking:div_ceil, r=Nilstrieb
9b3a511 Auto merge of rust-lang#120639 - fee1-dead-contrib:new-effects-desugaring, r=oli-obk
f96a321 Stabilize `duration_abs_diff`
bf9096f small correction to fmt::Pointer impl
171f5db Auto merge of rust-lang#127121 - GuillaumeGomez:rollup-xjjjckn, r=GuillaumeGomez
50a6646 Remove uneccessary condition in `div_ceil`
7914389 Updated docs on `#[panic_handler]` in `library/core/src/lib.rs`
1858bdc Rollup merge of rust-lang#127073 - Sky9x:unnecessary-seqcst, r=Nilstrieb
aaed209 Rollup merge of rust-lang#127072 - Sky9x:docs-includes-vs-does-include, r=scottmcm
e5a577d Auto merge of rust-lang#127119 - RalfJung:miri-sync, r=RalfJung
77a5b51 Rollup merge of rust-lang#126953 - joboet:lazy_key, r=jhpratt
8641f6a Merge from rustc
402992c Rollup merge of rust-lang#127071 - Sky9x:remove-ptr-to-from-bits, r=scottmcm
0a2d8e4 Rollup merge of rust-lang#127070 - Sky9x:unit-const-param-ty, r=BoxyUwU
663f3d5 Rollup merge of rust-lang#127055 - shepmaster:hash-finish-must-use, r=dtolnay
729a10a address review comments
db228b8 general fixups and turn `TODO`s into `FIXME`s
47492c9 Implement `Min` trait in new solver
cc4a029 implement new effects desugaring
d6fadf5 std: add safety comments
8c3c7dc Rollup merge of rust-lang#126970 - DaniPopes:simplify-str-clone_into, r=cuviper
ae98528 Rollup merge of rust-lang#126956 - joboet:fmt_no_extern_ty, r=RalfJung
652f0b8 Merge from rustc
48dc678 Remove unnecessary SeqCst in `impl fmt::Pointer for AtomicPtr`
e6e5e84 docs: say "includes" instead of "does include"
a722d39 Remove (deprecated & unstable) {to,from}_bits pointer methods
2ed9c9f add () to the marker_impls macro for ConstParamTy
fdfe014 Mark `Hasher::finish` as #[must_use]
2bd2069 fix least significant digits of f128 associated constants
8db57c2 core: improve comment
1f8c8f4 Cleanup bootstrap check-cfg
6c38c60 Rollup merge of rust-lang#126980 - Borgerr:fix-extendfromslice-check, r=workingjubilee
a2dc9b5 Rollup merge of rust-lang#126929 - nnethercote:rm-__rust_force_expr, r=oli-obk
cf231e8 Merge from rustc
a8b311e Auto merge of rust-lang#126608 - tgross35:f16-f128-library, r=Mark-Simulacrum
4788a93 std: test a variety of ways to extend a Wtf8Buf
57c2de8 set self.is_known_utf8 to false in extend_from_slice
c14a130 Rollup merge of rust-lang#126879 - the8472:next-chunk-filter-drop, r=cuviper
f6fdef3 core: avoid `extern` types in formatting infrastructure
43a865a fix UI test, simplify error message
ff33a66 regression test for leaks in the the Filter::next_chunk implementation
f90972a add comments explaining optimizations for Filter::next_chunk
4039a7f fix Drop items getting leaked in Filter::next_chunk
0351c53 Simplify `str::clone_into`
5aedb8a Rollup merge of rust-lang#126946 - cyrgani:patch-1, r=compiler-errors
5664da3 Rollup merge of rust-lang#126927 - workingjubilee:vaargsafe-is-unsafe, r=joboet
9273373 Rollup merge of rust-lang#126885 - Borgerr:rm_internal_pathbuf_asmutvec, r=workingjubilee
46074aa Rollup merge of rust-lang#126302 - mu001999-contrib:ignore/default, r=michaelwoerister
0fe5362 Stabilize const unchecked conversion from u32 to char
9dcaa15 std: separate TLS key creation from TLS access
5d08a54 Detect unused structs which derived Default
e6c45e4 `PathBuf::as_mut_vec` removed and verified for UEFI and Windows platforms rust-lang#126333
7cec6ef remove references to `PathBuf::as_mut_vec` in `PathBuf::_set_extension`
37f78f4 inner truncate methods for UEFI platforms
cfb8021 rust-lang#126333 remove `PathBuf::as_mut_vec` reference at top of `PathBuf::_push`
3edb521 simd_bitmask intrinsic: add a non-power-of-2 multi-byte example
2ddf794 Add missing slash in const_eval_select doc comment
19cfdb2 Add tests for `f16` and `f128`
561daff Add more `f16` and `f128` library functions and constants
6cb3d34 Add doctests to existing `f16` and `f128` functions
b0e0503 Add build.rs config for reliable `f16` and `f128`
028026b Remove `__rust_force_expr`.
1069a68 core: VaArgSafe is an unsafe trait
a451b2a Auto merge of rust-lang#126852 - scottmcm:more-checked-math-tweaks, r=Amanieu
17d03b9 Check that we get somewhat sane PIDs when spawning with pidfds
4c9a96e more fine-grained feature-detection for pidfd spawning
bf06e43 document safety properties of the internal Process::new constructor
9212236 use pidfd_spawn for faster process creation when pidfds are requested
4815f29 document the cvt methods
1bd207e Rollup merge of rust-lang#126904 - GrigorenkoPV:nonzero-fixme, r=joboet
2676918 Rollup merge of rust-lang#125575 - dingxiangfei2009:derive-smart-ptr, r=davidtwco
9dcffa5 Rollup merge of rust-lang#125082 - kpreid:const-uninit, r=dtolnay
cf34f71 Replace `MaybeUninit::uninit_array()` with array repeat expression.
e51d8a2 Auto merge of rust-lang#126523 - joboet:the_great_big_tls_refactor, r=Mark-Simulacrum
2b8c7a3 Small fixme in core now that split_first has no codegen issues
532304b Small fixme in core now that NonZero is generic
5ae0378 std: fix wasm builds
ae08c58 Rollup merge of rust-lang#126213 - zachs18:atomicbool-u8-i8-from-ptr-alignment, r=Nilstrieb
071e80d Fix simd_gather documentation
0c4a661 wasm64 build with target-feature=+simd128,+atomics
36a20f7 Reword docs for `f32` and `f64`
6839ec5 Extract repeated constants from `f32` and `f64` source
c26bd79 Rollup merge of rust-lang#126854 - devnexen:std_unix_os_fallback_upd, r=Mark-Simulacrum
828e528 Rollup merge of rust-lang#126807 - devnexen:copy_file_macos_simpl, r=Mark-Simulacrum
e4bc79d Also get `add nuw` from `uN::checked_add`
7c83a04 SmartPointer derive-macro
f0b95fc fix build
12ec5b7 Rollup merge of rust-lang#126783 - tguichaoua:fix_tcplistener_into_incoming_issue_number, r=workingjubilee
eb265d0 std::unix::os::home_dir: fallback's optimisation.
a48f3d6 Auto merge of rust-lang#126838 - matthiaskrgr:rollup-qkop22o, r=matthiaskrgr
ec8af4b Rollup merge of rust-lang#126552 - fee1-dead-contrib:rmfx, r=compiler-errors
6d6ba92 Rollup merge of rust-lang#126140 - eduardosm:stabilize-fs_try_exists, r=Amanieu
e1edea8 Auto merge of rust-lang#116113 - kpreid:arcmut, r=dtolnay
49d4fdb Generalize `{Rc,Arc}::make_mut()` to unsized types.
5ac719e Replace `WriteCloneIntoRaw` with `CloneToUninit`.
a4ca461 Add `core::clone::CloneToUninit`.
7836843 Auto merge of rust-lang#126750 - scottmcm:less-unlikely, r=jhpratt
934e728 Auto merge of rust-lang#124101 - the8472:pidfd-methods, r=cuviper
c2ec99b to extract a pidfd we must consume the child
f7cf777 Add PidFd::{kill, wait, try_wait}
d688595 std::unix::fs: copy simplification for apple.
bb602cf Auto merge of rust-lang#125853 - tesuji:promote-fail-fast, r=cjgillot
1f17936 update intrinsic const param counting
5e7ce0b Remove `feature(effects)` from the standard library
8902c17 Auto merge of rust-lang#126781 - matthiaskrgr:rollup-5u4pens, r=matthiaskrgr
54eaed7 fix issue number
2e01ae3 Rollup merge of rust-lang#126613 - tgross35:log-test-update, r=cuviper
306d7bf Stop using `unlikely` in `strict_*` methods
a8ab1ce [GVN] Add tests for generic pointees with PtrMetadata
a272844 Don't perform mitigation for thread-unsafe libc::exit under Miri.
5035a17 fix rustdoc URL
1530977 On `target_os = "linux"`, ensure that only one Rust thread calls `libc::exit` or returns from `main`.
7e940ba Auto merge of rust-lang#126578 - scottmcm:inlining-bonuses-too, r=davidtwco
9a945fd Auto merge of rust-lang#124032 - Voultapher:a-new-sort, r=thomcc
dbaf524 Rollup merge of rust-lang#126737 - fee1-dead-contrib:rm-const-closures, r=compiler-errors
0f6922d Fix wrong big O star bracing in the doc comments
7bf7f57 Remove `feature(const_closures)` from libcore
b4e2e4a Auto merge of rust-lang#126736 - matthiaskrgr:rollup-rb20oe3, r=matthiaskrgr
0829ab8 Rollup merge of rust-lang#126717 - nnethercote:rustfmt-use-pre-cleanups, r=jieyouxu
f1c9c80 Rollup merge of rust-lang#126711 - GKFX:const-option-as-slice, r=oli-obk
e057232 Auto merge of rust-lang#116088 - nbdd0121:unwind, r=Amanieu,RalfJung
13ea648 Stabilize `PanicInfo::message()` and `PanicMessage`
b6a3858 Rollup merge of rust-lang#126703 - the8472:on-blackbox-crypto-use, r=scottmcm
847726d Shrink some slice iterator MIR
1ba2fa4 Stabilize `hint_assert_unchecked`
9d0041c Update documentation for `hint::assert_unchecked`
e3e84a7 Add blank lines after module-level `//` comments.
36ad0db Add blank lines after module-level `//!` comments.
4e67110 Convert some module-level `//` and `///` comments to `//!`.
669d6fc Make Option::as_[mut_]slice const
4ae781c reword the hint::blackbox non-guarantees
dd7c901 core: add tracking issue for `array::repeat`
5ddeaca core: simplify implementation of `array::repeat`, address other nits
62f7a4e core: implement `UncheckedIterator` for `RepeatN`
387fd1f core: implement `array::repeat`
3fc18d0 Add a hack to prevent proc_macro misopt in CI
a95938d Stabilise c_unwind
2a5e5b8 Rollup merge of rust-lang#125787 - Oneirical:infinite-test-a-novel, r=jieyouxu
227994d try implementing suggestions
78867ab run_make_support nm implementation + bin-emit-no-symbols rmake rewrite
76e61bf Replace `move||` with `move ||` in `compiler/` and `library/`
13a31b6 Auto merge of rust-lang#126330 - m-ou-se:panic-message-type, r=Amanieu
42802a3 Print the tested value in int_log tests
ea1ab74 Add missing CopyMarker impl
384c205 Revert panic_safe test changes
ca458ba Add PanicMessage type for PanicInfo::message().
2238945 Add tracking issue to async_drop API
0b3227b std: rename module for clarity
2b9a4f3 std: update TLS module documentation
00d4964 std: use the `c_int` from `core::ffi` instead of `libc`
bd3b9ec std: simplify `#[cfg]`s for TLS
78eaad5 Fix unintended regression for Freeze + Copy types
8cd20cb Auto merge of rust-lang#126569 - jieyouxu:rollup-1uvkb2y, r=jieyouxu
c1acd7a Rollup merge of rust-lang#126531 - slanterns:error_provider, r=workingjubilee
cd1c998 Rollup merge of rust-lang#126468 - RalfJung:euclid, r=Mark-Simulacrum
2730879 Rollup merge of rust-lang#126346 - hermit-os:fd, r=Amanieu
ebbce69 Rollup merge of rust-lang#126288 - x4exr:patch-1, r=dtolnay
4aa43c7 Auto merge of rust-lang#125720 - folkertdev:optimize_for_size-ptr-rotate, r=Amanieu
7912329 doc: Added commas where needed
48e1578 Fix doc-link issue
489dfce Remove reliance on const_trait in sort implementations
89b5784 std: move `sys_common::backtrace` to `sys`
90dbe22 use rustc-dep-of-std in panic_unwind
6832ad3 Rollup merge of rust-lang#126539 - lukaslueg:patch-1, r=jhpratt
04e46c2 Rollup merge of rust-lang#125112 - tbu-:pr_create_dir_all_empty, r=dtolnay
e77b474 Update `Arc::try_unwrap()` docs
83c530f Apply review comments
ae7f43e Auto merge of rust-lang#126299 - scottmcm:tune-sliceindex-ubchecks, r=saethlin
339f266 Redo SliceIndex implementations
2388743 update comment
4cc1c37 Rollup merge of rust-lang#126229 - ChrisDenton:bindgen, r=Mark-Simulacrum
b40c54b std: refactor the TLS implementation
7e3c4f8 Auto merge of rust-lang#126518 - matthiaskrgr:rollup-wb70rzq, r=matthiaskrgr
2678593 std: suggest OnceLock over Once
b509ed2 Polish `std::path::absolute` documentation.
c3c1757 Auto merge of rust-lang#126473 - matthiaskrgr:rollup-8w2xm09, r=matthiaskrgr
a135342 Rollup merge of rust-lang#126285 - kpreid:unique-rc, r=dtolnay
7fafb6d Rollup merge of rust-lang#126266 - tbu-:pr_doc_alloc_default_system, r=jhpratt
afee9f5 Rollup merge of rust-lang#126135 - hermit-os:fuse, r=jhpratt
4a32b4b Rollup merge of rust-lang#123769 - dtolnay:literal, r=fee1-dead
3909d51 div_euclid, rem_euclid: clarify/extend documentation
ca52a2c Rollup merge of rust-lang#126351 - devnexen:to_sol11_upd, r=ChrisDenton
369fa55 Rollup merge of rust-lang#126402 - firefighterduck:fix-unsafe-precon-copy, r=Nilstrieb
2acb995 Rollup merge of rust-lang#126390 - Kriskras99:master, r=Nilstrieb
b3c1dcb Rollup merge of rust-lang#126360 - compiler-errors:uplift-structural-traits, r=lcnr
bdb9aa2 Rollup merge of rust-lang#123726 - jieyouxu:command-new-docs, r=Nilstrieb
307d1af Remove superfluous escaping from byte, byte str, and c str literals
78d94ee LangItem-ify Coroutine trait in solvers
891f00c fix wrong assert_unsafe_precondition message for core::ptr::copy
9adf702 Rollup merge of rust-lang#126384 - RalfJung:is_none_or, r=workingjubilee
02cb1e9 Rollup merge of rust-lang#126347 - slanterns:try_simplify, r=scottmcm
fa2a54a Fix wording in {checked_}next_power_of_two
3ef894f add tracking issue for is_none_or
a5fe19d std::unix::fs::link using direct linkat call for Solaris and macOs.
9921cd2 Rollup merge of rust-lang#126328 - RalfJung:is_none_or, r=workingjubilee
93583a6 Simplify `try_*` on `Iterator`
47090b1 export std::os::fd module on HermitOS
17c90d8 Auto merge of rust-lang#126273 - pietroalbini:pa-bootstrap-update, r=Mark-Simulacrum
b482e06 add is_none_or
027c82e Rollup merge of rust-lang#126322 - m-ou-se:panicinfo-and-panicinfo-2, r=RalfJung
db03ec6 Rollup merge of rust-lang#126242 - yaahc:simplify-provider, r=jhpratt
956efde Rollup merge of rust-lang#126039 - dpaoliello:arm64ecbuild, r=davidtwco
3acb41f Fix deprecated version.
bc5e618 Update doc comment on PanicInfo::message().
249d63e Use payload_as_str instead of two downcasts.
15677e9 Fix deprecation version.
a239d5b Clarify doc comment.
209f8c8 Auto merge of rust-lang#126319 - workingjubilee:rollup-lendnud, r=workingjubilee
6ec98e7 Rollup merge of rust-lang#126305 - workingjubilee:fix-os-string-to-string-utf8-invariant, r=joboet
80467da Rollup merge of rust-lang#126287 - nnethercote:reformat-cranelift-patch, r=bjorn3
5760a4e Rollup merge of rust-lang#126281 - ChrisDenton:env, r=jhpratt
439c2ae Rollup merge of rust-lang#126249 - workingjubilee:simplify-try-map-signature, r=scottmcm
23e3dbf Rollup merge of rust-lang#126210 - lolbinarycat:ptr_doctest_assert, r=workingjubilee
d469394 Rollup merge of rust-lang#123374 - mgeier:doc-slice-from-raw-parts, r=scottmcm
63fe960 Require any function with a tait in its signature to actually constrain a hidden type
e1d73c2 Revert "Rollup merge of rust-lang#125362 - joboet:tait_hack, r=Nilstrieb"
382ed52 Make PathBuf less Ok with adding UTF-16 then `into_string`
548e7a4 Update a cranelift patch file for formatting changes.
8ccbe9e `UniqueRc`: support allocators and `T: ?Sized`.
b3dcee6 set_env: State the conclusion upfront
f56c023 Rename `std::fs::try_exists` to  `std::fs::exists` and stabilize fs_try_exists
c16d8b1 Unify guarantees about the default allocator
d8fe589 remove cfg(bootstrap)
a2ff49b replace version placeholder
f72e4a9 Formatting.
0503ca7 Bump deprecation of std's PanicInfo alias to 1.82.0.
fea6b03 Add PanicHookInfo::payload_as_str().
0c8a9e0 Fix display of panic message in recursive panic.
2f85702 Mention core's PanicInfo in error.md.
ad0667f Add note on panic payload type.
518722e Downcast panic payload to String too in example.
c4dea81 Move deprecation of std::panic::PanicInfo to 1.80.0.
143e4c4 Fix deprecation version.
c6749ae Rename std::panic::PanicInfo to PanicHookInfo.
db2e055 Formatting.
51f20ac Fix invalid markdown/html.
d4b7304 Reorder body of begin_panic for consistency.
373fb60 Impl Display for PanicPayload to simplify things.
224d45c Use unnamed lifetimes for [..]Payload impl blocks.
cf984e0 Move downcasting panic payload to str to a function.
a18eeac Mark some PanicInfo methods as #[inline] for consistency.
47f359b Remove std::panic::PanicInfo::internal_constructor+set_payload.
701d6a2 Remove core::panic::PanicInfo::internal_constructor.
cca865d Update doc comment about core::panicking.
221a90c Fix doc link.
d6658a5 Add core::panic::PanicInfo::payload() for compatibility.
ca0bfeb Document difference between core and std's PanicInfo.
702405e Split core's PanicInfo and std's PanicInfo.
019e01f Skip fast path for dec2flt when optimize_for_size
483f641 Simplify `[T; N]::try_map` signature
8b6f468 Simplify provider api to improve llvm ir
c8170e6 Rollup merge of rust-lang#126212 - SteveLauC:fix/haiku, r=joboet
58bb5cf Rollup merge of rust-lang#126191 - ivan-shrimp:nonzero_doc, r=scottmcm
d2f8ddf Bump windows-bindgen to 0.57
02bf152 Clarify `Command::new` behavior if passed programs with arguments
e17d6b9 Remove some unused crate dependencies.
5840184 Update docs for AtomicU8/I8.
8791549 fix: build on haiku
263861f Update safety docs for AtomicBool::from_ptr.
e25ae61 docs(core): make more const_ptr doctests assert instead of printing
cf9de23 Auto merge of rust-lang#126205 - jieyouxu:rollup-s64z5ng, r=jieyouxu
c5da756 Rollup merge of rust-lang#126194 - ChrisDenton:winerror, r=Mark-Simulacrum
c4bd74c Rollup merge of rust-lang#125253 - sunsided:feature/FRAC_1_SQRT_PI, r=Mark-Simulacrum
c9c5d8f Auto merge of rust-lang#126193 - RalfJung:miri-sync, r=RalfJung
e39299d Migrate more things to WinError
0df0a38 fix `NonZero` doctest inconsistencies
818933d Rollup merge of rust-lang#126168 - devnexen:current_exe_haiku_simpl, r=ChrisDenton
a9bd569 Rollup merge of rust-lang#126146 - devnexen:signal_fbsd, r=ChrisDenton
05812a0 Merge from rustc
56bdaf3 std::unix::os current_exe implementation simplification for haiku.
e6c378f Auto merge of rust-lang#125966 - schvv31n:impl_os_string_pathbuf_leak, r=workingjubilee
e000ecb std::unix::process adding few specific freebsd signals to be able to id.
67454f5 Rollup merge of rust-lang#126138 - wbk:patch-1, r=lqd
ca932c8 Rollup merge of rust-lang#125998 - devnexen:get_mode_illumos, r=Nilstrieb
397e9cb Rollup merge of rust-lang#125951 - slanterns:error_in_core_stabilization, r=Amanieu
4655eca Fix typo in docs for std::pin
bb2e2d9 add HermitOS support of vectored read/write operations
dd7ccb7 Rollup merge of rust-lang#126089 - wutchzone:option_take_if, r=scottmcm
199da77 Rollup merge of rust-lang#126030 - ChrisDenton:update-wingen-readme, r=Mark-Simulacrum
8a4b11a Rollup merge of rust-lang#124012 - slanterns:as_slice_stabilize, r=BurntSushi
05a92c2 Auto merge of rust-lang#126110 - workingjubilee:backtrace-0.3.73, r=workingjubilee
cd73cbe Update backtrace to 0.3.73
c6e53ce Merge from rustc
3b60335 Rollup merge of rust-lang#125606 - diondokter:opt-size-int-fmt, r=cuviper
7014731 fix doc comments about `error_generic_member_access`
3f48168 Stabilize `error_in_core`
20f15f4 fixed memory leaks in PathBuf::leak & OsString::leak tests
fa66a61 Rollup merge of rust-lang#126096 - c410-f3r:tests-tests-tests, r=jhpratt
5736944 [RFC-2011] Allow `core_intrinsics` when activated
dfddd7e Stabilize Option::take_if
051c6c6 Raise `DEFAULT_MIN_STACK_SIZE` to at least 64KiB
29932f3 Auto merge of rust-lang#126038 - matthiaskrgr:rollup-h4rm3x2, r=matthiaskrgr
149a237 Promote `arm64ec-pc-windows-msvc` to tier 2
4a81c12 Rollup merge of rust-lang#126032 - ChrisDenton:update-docs, r=joboet
7450cf0 Rollup merge of rust-lang#125800 - fortanix:raoul/rte-99-fix_mut_static_task_queue, r=jethrogb
ed91d55 Rollup merge of rust-lang#125940 - devnexen:unix_fs_netbsd_get_path, r=cuviper
bf7430f Update description of the `IsTerminal` example
91c8b23 Update `./x fmt` command
1632165 Rollup merge of rust-lang#125995 - kpreid:const-uninit-stable, r=Nilstrieb
2c5f1ac Rollup merge of rust-lang#125982 - xTachyon:fix-linked-list, r=jhpratt
80cee25 Rollup merge of rust-lang#123168 - joshtriplett:size-of-prelude, r=Amanieu
28dc012 std::unix::fs::get_mode implementation for illumos/solaris.
14a6f29 Use inline const instead of unsafe to implement `MaybeUninit::uninit_array()`.
a2c3406 Use inline const instead of unsafe to construct arrays in `MaybeUninit` examples.
f8ee355 Rollup merge of rust-lang#125932 - schvv31n:patch-1, r=lqd
49dad46 Rollup merge of rust-lang#125927 - ferrocene:lw-alloc-unwind-test, r=pietroalbini
e38c13a Rollup merge of rust-lang#125696 - workingjubilee:please-dont-say-you-are-lazy, r=Nilstrieb
1764910 Rollup merge of rust-lang#106186 - rossmacarthur:ft/iter-chain, r=Amanieu
fbb5246 Make deleting on LinkedList aware of the allocator
85aa4b6 impl OsString::leak & PathBuf::leak
b19dd14 Add function `core::iter::chain`
25245bb Rollup merge of rust-lang#125919 - tbu-:pr_fix_typo, r=lqd
a415ddd Rollup merge of rust-lang#125504 - mqudsi:once_nominal, r=cuviper
ea7e91c Let compiler auto impl `Send` for `Task`
55f3d10 Store `Task::p` as `dyn FnOnce() + Send`
92b604f Pass function for `Thread` as `Send` to `Thread::imp`
175ad22 Auto merge of rust-lang#125525 - joboet:tls_accessor, r=cuviper
31e0022 std::unix::fs::get_path: using fcntl codepath for netbsd instead.
82e24ad Fix typo in the docs of `HashMap::raw_entry_mut`
fcc07af Ignore `vec_deque_alloc_error::test_shrink_to_unwind` test on non-unwind targets
6ef46b3 Auto merge of rust-lang#125912 - nnethercote:rustfmt-tests-mir-opt, r=oli-obk
7927138 Remove stray "this"
06d9b0e Add "OnceList" example to motivate OnceLock
6d001c5 Move first OnceLock example to LazyLock
7e47256 Differ LazyLock vs. OnceLock in std::sync overview
a198721 Explain LazyCell in core::cell overview
ae5598a Reformat `mir!` macro invocations to use braces.
494f05c Rollup merge of rust-lang#125898 - RalfJung:typo, r=Nilstrieb
7881d33 Rollup merge of rust-lang#125884 - Rua:integer_sign_cast, r=Mark-Simulacrum
380d9a3 Rollup merge of rust-lang#121062 - RustyYato:f32-midpoint, r=the8472
81b9e26 Wording of the documentation
1c707b6 typo: depending from -> on
fe5adb9 Auto merge of rust-lang#125577 - devnexen:netbsd_stack_min, r=joboet
876458e Implement feature `integer_sign_cast`
e929c7f Change f32::midpoint to upcast to f64
cd04000 Auto merge of rust-lang#124294 - tspiteri:ilog-first-iter, r=the8472
7f0b19d stablize `const_binary_heap_constructor` & create an unstable feature `const_binary_heap_new_in` for `BinaryHeap::new_in`
5c2e274 Rollup merge of rust-lang#125730 - mu001999-contrib:clippy-fix, r=oli-obk
9fe1803 Auto merge of rust-lang#124662 - zetanumbers:needs_async_drop, r=oli-obk
8943103 Avoid `mut` and simplify initialization of `TASK_QUEUE`
ba98164 Auto merge of rust-lang#124636 - tbu-:pr_env_unsafe, r=petrochenkov
bbaaa79 Rollup merge of rust-lang#125746 - jmillikin:duration-from-weeks-typo, r=lqd
1329a62 Rollup merge of rust-lang#125739 - RalfJung:drop-in-place-docs, r=workingjubilee
8883bcf Rollup merge of rust-lang#125342 - tbu-:pr_doc_write, r=ChrisDenton
14d5dcb explain what the open questions are, and add a Miri test for that
6f01ba7 Apply x clippy --fix and x fmt
c9c0713 Fix copy-paste error in `Duration::from_weeks` panic message.
e935223 Rollup merge of rust-lang#125733 - compiler-errors:async-fn-assoc-item, r=fmease
4feb881 Elaborate about modifying env vars in multi-threaded programs
2500719 Add note about safety of `std::env::set_var` on Windows
c4b1ff8 Make `std::env::{set_var, remove_var}` unsafe in edition 2024
07d3009 drop_in_place: weaken the claim of equivalence with drop(ptr.read())
99eabb4 Add lang item for AsyncFnKindHelper::Upvars
a8f468f Add lang item for Future::Output
2e1896e Add lang items for AsyncFn's associated types
d82378a [ACP 362] genericize `ptr::from_raw_parts`
619e33b Add FRAC_1_SQRT_2PI doc alias to FRAC_1_SQRT_TAU
1265244 make `ptr::rotate` smaller when using `optimize_for_size`
bb6d4eb Add safety comment to fix tidy
c8b699c Optimize async drop glue for some old types
0444ab8 Add FRAC_1_SQRT_2PI constant to f16/f32/f64/f128
1aaf0a9 Rollup merge of rust-lang#125226 - madsmtm:fix-mac-catalyst-tests, r=workingjubilee
565dce2 Rollup merge of rust-lang#124251 - scottmcm:unop-ptr-metadata, r=oli-obk
a4025eb Add custom mir support for `PtrMetadata`
87b9f24 Add an intrinsic for `ptr::metadata`
914d2c0 Rollup merge of rust-lang#125637 - nnethercote:rustfmt-fixes, r=GuillaumeGomez
3170156 Make more of the test suite run on Mac Catalyst
9753338 Disable stack overflow handler tests on iOS-like platforms
3548389 Don't format `tests/run-make/*/rmake.rs`.
6fcf130 Rollup merge of rust-lang#125647 - tspiteri:track-lazy_cell_consume, r=workingjubilee
385e1b8 Rollup merge of rust-lang#125551 - clarfonthey:ip-bits, r=jhpratt
457f5ee update tracking issue for lazy_cell_consume
893db81 Auto merge of rust-lang#125636 - workingjubilee:bump-backtrace-0.3.72, r=workingjubilee
6785858 Sync libstd deps with backtrace
b214872 Bump backtrace to 0.3.72
0ef7706 Auto merge of rust-lang#125609 - diondokter:opt-size-char-count, r=thomcc
3578f42 Rollup merge of rust-lang#124870 - Lokathor:update-result-docs, r=dtolnay
d4fb66b Always use the general case char count
1e8098b Size optimize int formatting
a74509c Rollup merge of rust-lang#125559 - scottmcm:simplify-shift-ubcheck, r=workingjubilee
bc346a0 Auto merge of rust-lang#122079 - tbu-:pr_copy_file_range_probe, r=the8472
fdcee4d std::pal::unix::thread fetching min stack size on netbsd.
d14171d Auto merge of rust-lang#125574 - matthiaskrgr:rollup-1oljoup, r=matthiaskrgr
3e545bc Rollup merge of rust-lang#125571 - tesuji:dummy-pi, r=Nilstrieb
8409442 Rollup merge of rust-lang#125561 - Cyborus04:stabilize-slice-flatten, r=scottmcm
8981ee4 Auto merge of rust-lang#125570 - tesuji:stdout-handle, r=Nilstrieb
addaaed f32: use constants instead of reassigning a dummy value as PI
8a6d10d use proper name instead of magic number
64671fa Stabilize `slice_flatten`
4014081 Auto merge of rust-lang#125070 - tbu-:pr_set_extension_panic, r=jhpratt
f54c557 Auto merge of rust-lang#125518 - saethlin:check-arguments-new-in-const, r=joboet
a4bac2b It seems that anchor names are implicitly all lowercase
7cddfd4 Simplify the `unchecked_sh[lr]` ub-checks a bit
805f56b Fix URL target, it's in the module not the type.
3b77f19 github showed that weird.
65726c0 correct for copy paste errors when fixing wrapping.
613145f Resolve rust-lang#124870 (comment)
9677b70 revert to the inconsistent paragraph wrapping.
bf3ca98 Rollup merge of rust-lang#124667 - newpavlov:stabilize_div_duration, r=jhpratt
4af28c4 Rollup merge of rust-lang#123803 - Sp00ph:shrink_to_fix, r=Mark-Simulacrum
79e1daf Rollup merge of rust-lang#122986 - taiki-e:aix-c-char, r=Mark-Simulacrum
0b13a6c Rollup merge of rust-lang#121377 - pitaj:lazy_cell_fn_pointer, r=dtolnay
b1ac7da Stabilise ip_bits feature
23bb5bc Auto merge of rust-lang#121571 - clarfonthey:unchecked-math-preconditions, r=saethlin
c11b36a Rollup merge of rust-lang#125527 - programmerjake:patch-2, r=workingjubilee
d6812d5 Rollup merge of rust-lang#125498 - zmodem:avx512er, r=workingjubilee
f52291b Rollup merge of rust-lang#125478 - Urgau:check-cfg-config-bump-stage0, r=Mark-Simulacrum
38dcab9 Rollup merge of rust-lang#125271 - RalfJung:posix_memalign, r=workingjubilee
29a1b3b Move the checks for Arguments constructors to inline const
5257f3f Add manual Sync impl for ReentrantLockGuard
078095a std: make TLS accessors closures that return pointers
567096d Rollup merge of rust-lang#125497 - meesfrensel:patch-1, r=calebzulawski
dd828cf Stop using the avx512er and avx512pf x86 target features
749b376 Change pedantically incorrect OnceCell/OnceLock wording
2b1602a Fix some SIMD intrinsics documentation
59b5617 Remove now outdated comment since we bumped stage0
6d1cdb5 Add assert_unsafe_precondition to unchecked_{add,sub,neg,mul,shl,shr} methods
ce29159 Simplify environment variable examples
8fa3f60 Document behavior of `create_dir_all` wrt. empty path
dd196e7 Document platform-specifics for `Read` and `Write` of `File`
a71d9d9 Fix c_char on AIX
ce3db1b fix typo
4913884 use posix_memalign on most Unix targets
86878b9 Fix linkchecker doc errors
1bf7a30 Turn bare links into automatic links
736b225 Move BufGuard impl outside of function
a44e7b3 Fix tidy errors
36af639 Replace sort implementations
48a835b Divide float nanoseconds instead of seconds
f84d57f Don't use `T` with both Result and Option, improve explanation.
88338ff Add `size_of`, `size_of_val`, `align_of`, and `align_of_val` to the prelude
5d56638 Panic if `PathBuf::set_extension` would add a path separator
7db52fc Add fn allocator method to rc/sync::Weak. Relax Rc<T>/Arc<T>::allocator to allow unsized T.
43bf016 Suggest borrowing on fn argument that is `impl AsRef`
50d5af4 use teletype on the attribute name
43ae187 Some Result combinations work like an Option.
d0c07aa Move `test_shrink_to_unwind` to its own file.
d77b1cc Fix `VecDeque::shrink_to` UB when `handle_alloc_error` unwinds.
0342284 Use `CURRENT_RUSTC_VERSION`
9eb77db Stabilize `div_duration`
7a6ddb3 Lift the probe code of `copy_file_range` into a function
f5305c1 Add missing .into_iter()
2a5af32 Extend the example code and assert the result
678e5a0 Add "safety" comment
ad38f9b unroll first iter of checked_ilog loop to save one multiplication
dbd03d4 Stabilize `BinaryHeap::as_slice`
08f761f DOC: Add FFI example for slice::from_raw_parts()
30c876c Be stricter with `copy_file_range` probe results
fe05246 Less syscalls for the `copy_file_range` probe
511fe47 Stabilize `LazyCell` and `LazyLock` (`lazy_cell`)

git-subtree-dir: library
git-subtree-split: a2cf636
@lvella
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lvella commented Sep 10, 2024

So, this broke my code when updating from 1.80 to 1.81. Shouldn't such change come with deprecation/warning?

Out of curiosity, this is the code snippet:

    let p3: Box<dyn Backend<FInner>> = p3;
    let p3 = Box::into_raw(p3);

    // This is safe because we know that FInner == FOuter.
    Some(unsafe { Box::from_raw(p3 as *mut dyn Backend<FOuter>) })

@WaffleLapkin
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@lvella IIRC we decided that because this is a very rare pattern of code, we can go straight to a hard error. (note that before code was unsound pretty much always (unless, like in your case, there is some kind of proof invisible to the compiler that types are actually the same)).

tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request Sep 11, 2024
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [rust](https://github.com/rust-lang/rust) | minor | `1.80.1` -> `1.81.0` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>rust-lang/rust (rust)</summary>

### [`v1.81.0`](https://github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1810-2024-09-05)

[Compare Source](rust-lang/rust@1.80.1...1.81.0)

\==========================

<a id="1.81.0-Language"></a>

## Language

-   [Abort on uncaught panics in `extern "C"` functions.](rust-lang/rust#116088)
-   [Fix ambiguous cases of multiple `&` in elided self lifetimes.](rust-lang/rust#117967)
-   [Stabilize `#[expect]` for lints (RFC 2383),](rust-lang/rust#120924) like `#[allow]` with a warning if the lint is *not* fulfilled.
-   [Change method resolution to constrain hidden types instead of rejecting method candidates.](rust-lang/rust#123962)
-   [Bump `elided_lifetimes_in_associated_constant` to deny.](rust-lang/rust#124211)
-   [`offset_from`: always allow pointers to point to the same address.](rust-lang/rust#124921)
-   [Allow constraining opaque types during subtyping in the trait system.](rust-lang/rust#125447)
-   [Allow constraining opaque types during various unsizing casts.](rust-lang/rust#125610)
-   [Deny keyword lifetimes pre-expansion.](rust-lang/rust#126762)

<a id="1.81.0-Compiler"></a>

## Compiler

-   [Make casts of pointers to trait objects stricter.](rust-lang/rust#120248)
-   [Check alias args for well-formedness even if they have escaping bound vars.](rust-lang/rust#123737)
-   [Deprecate no-op codegen option `-Cinline-threshold=...`.](rust-lang/rust#124712)
-   [Re-implement a type-size based limit.](rust-lang/rust#125507)
-   [Properly account for alignment in `transmute` size checks.](rust-lang/rust#125740)
-   [Remove the `box_pointers` lint.](rust-lang/rust#126018)
-   [Ensure the interpreter checks bool/char for validity when they are used in a cast.](rust-lang/rust#126265)
-   [Improve coverage instrumentation for functions containing nested items.](rust-lang/rust#127199)
-   Target changes:
    -   [Add Tier 3 `no_std` Xtensa targets:](rust-lang/rust#125141) `xtensa-esp32-none-elf`, `xtensa-esp32s2-none-elf`, `xtensa-esp32s3-none-elf`
    -   [Add Tier 3 `std` Xtensa targets:](rust-lang/rust#126380) `xtensa-esp32-espidf`, `xtensa-esp32s2-espidf`, `xtensa-esp32s3-espidf`
    -   [Add Tier 3 i686 Redox OS target:](rust-lang/rust#126192) `i686-unknown-redox`
    -   [Promote `arm64ec-pc-windows-msvc` to Tier 2.](rust-lang/rust#126039)
    -   [Promote `loongarch64-unknown-linux-musl` to Tier 2 with host tools.](rust-lang/rust#126298)
    -   [Enable full tools and profiler for LoongArch Linux targets.](rust-lang/rust#127078)
    -   [Unconditionally warn on usage of `wasm32-wasi`.](rust-lang/rust#126662) (see compatibility note below)
    -   Refer to Rust's \[platform support page]\[platform-support-doc] for more information on Rust's tiered platform support.

<a id="1.81.0-Libraries"></a>

## Libraries

-   [Split core's `PanicInfo` and std's `PanicInfo`.](rust-lang/rust#115974) (see compatibility note below)
-   [Generalize `{Rc,Arc}::make_mut()` to unsized types.](rust-lang/rust#116113)
-   [Replace sort implementations with stable `driftsort` and unstable `ipnsort`.](rust-lang/rust#124032) All `slice::sort*` and `slice::select_nth*` methods are expected to see significant performance improvements. See the [research project](https://github.com/Voultapher/sort-research-rs) for more details.
-   [Document behavior of `create_dir_all` with respect to empty paths.](rust-lang/rust#125112)
-   [Fix interleaved output in the default panic hook when multiple threads panic simultaneously.](rust-lang/rust#127397)

<a id="1.81.0-Stabilized-APIs"></a>

## Stabilized APIs

-   [`core::error`](https://doc.rust-lang.org/stable/core/error/index.html)
-   [`hint::assert_unchecked`](https://doc.rust-lang.org/stable/core/hint/fn.assert_unchecked.html)
-   [`fs::exists`](https://doc.rust-lang.org/stable/std/fs/fn.exists.html)
-   [`AtomicBool::fetch_not`](https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicBool.html#method.fetch_not)
-   [`Duration::abs_diff`](https://doc.rust-lang.org/stable/core/time/struct.Duration.html#method.abs_diff)
-   [`IoSlice::advance`](https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance)
-   [`IoSlice::advance_slices`](https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance_slices)
-   [`IoSliceMut::advance`](https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance)
-   [`IoSliceMut::advance_slices`](https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance_slices)
-   [`PanicHookInfo`](https://doc.rust-lang.org/stable/std/panic/struct.PanicHookInfo.html)
-   [`PanicInfo::message`](https://doc.rust-lang.org/stable/core/panic/struct.PanicInfo.html#method.message)
-   [`PanicMessage`](https://doc.rust-lang.org/stable/core/panic/struct.PanicMessage.html)

These APIs are now stable in const contexts:

-   [`char::from_u32_unchecked`](https://doc.rust-lang.org/stable/core/char/fn.from_u32\_unchecked.html) (function)
-   [`char::from_u32_unchecked`](https://doc.rust-lang.org/stable/core/primitive.char.html#method.from_u32\_unchecked) (method)
-   [`CStr::count_bytes`](https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.count_bytes)
-   [`CStr::from_ptr`](https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.from_ptr)

<a id="1.81.0-Cargo"></a>

## Cargo

-   [Generated `.cargo_vcs_info.json` is always included, even when `--allow-dirty` is passed.](rust-lang/cargo#13960)
-   [Disallow `package.license-file` and `package.readme` pointing to non-existent files during packaging.](rust-lang/cargo#13921)
-   [Disallow passing `--release`/`--debug` flag along with the `--profile` flag.](rust-lang/cargo#13971)
-   [Remove `lib.plugin` key support in `Cargo.toml`. Rust plugin support has been deprecated for four years and was removed in 1.75.0.](rust-lang/cargo#13902)

<a id="1.81.0-Compatibility-Notes"></a>

## Compatibility Notes

-   Usage of the `wasm32-wasi` target will now issue a compiler warning and request users switch to the `wasm32-wasip1` target instead. Both targets are the same, `wasm32-wasi` is only being renamed, and this [change to the WASI target](https://blog.rust-lang.org/2024/04/09/updates-to-rusts-wasi-targets.html) is being done to enable removing `wasm32-wasi` in January 2025.

-   We have renamed `std::panic::PanicInfo` to `std::panic::PanicHookInfo`. The old name will continue to work as an alias, but will result in a deprecation warning starting in Rust 1.82.0.

    `core::panic::PanicInfo` will remain unchanged, however, as this is now a *different type*.

    The reason is that these types have different roles: `std::panic::PanicHookInfo` is the argument to the [panic hook](https://doc.rust-lang.org/stable/std/panic/fn.set_hook.html) in std context (where panics can have an arbitrary payload), while `core::panic::PanicInfo` is the argument to the [`#[panic_handler]`](https://doc.rust-lang.org/nomicon/panic-handler.html) in no_std context (where panics always carry a formatted *message*). Separating these types allows us to add more useful methods to these types, such as `std::panic::PanicHookInfo::payload_as_str()` and `core::panic::PanicInfo::message()`.

-   The new sort implementations may panic if a type's implementation of [`Ord`](https://doc.rust-lang.org/std/cmp/trait.Ord.html) (or the given comparison function) does not implement a [total order](https://en.wikipedia.org/wiki/Total_order) as the trait requires. `Ord`'s supertraits (`PartialOrd`, `Eq`, and `PartialEq`) must also be consistent. The previous implementations would not "notice" any problem, but the new implementations have a good chance of detecting inconsistencies, throwing a panic rather than returning knowingly unsorted data.

-   [In very rare cases, a change in the internal evaluation order of the trait
    solver may result in new fatal overflow errors.](rust-lang/rust#126128)

<a id="1.81.0-Internal-Changes"></a>

## Internal Changes

These changes do not affect any public interfaces of Rust, but they represent
significant improvements to the performance or internals of rustc and related
tools.

-   [Add a Rust-for Linux `auto` CI job to check kernel builds.](rust-lang/rust#125209)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this MR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this MR, check this box

---

This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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wip-sync pushed a commit to NetBSD/pkgsrc-wip that referenced this pull request Sep 22, 2024
Pkgsrc changes:
 * Adapt patches, apply to new vendored crates where needed.
 * Back-port rust pull request 130110, "make dist vendoring configurable"
 * Disable "dist vendoring", otherwise cargo would try to access
   the network during the build phase.

Upstream changes:

Version 1.81.0 (2024-09-05)
==========================

Language
--------

- [Abort on uncaught panics in `extern "C"` functions.]
  (rust-lang/rust#116088)
- [Fix ambiguous cases of multiple `&` in elided self lifetimes.]
  (rust-lang/rust#117967)
- [Stabilize `#[expect]` for lints (RFC 2383),]
  (rust-lang/rust#120924) like `#[allow]`
  with a warning if the lint is _not_ fulfilled.
- [Change method resolution to constrain hidden types instead of
  rejecting method candidates.]
  (rust-lang/rust#123962)
- [Bump `elided_lifetimes_in_associated_constant` to deny.]
  (rust-lang/rust#124211)
- [`offset_from`: always allow pointers to point to the same
  address.] (rust-lang/rust#124921)
- [Allow constraining opaque types during subtyping in the trait
  system.] (rust-lang/rust#125447)
- [Allow constraining opaque types during various unsizing casts.]
  (rust-lang/rust#125610)
- [Deny keyword lifetimes pre-expansion.]
  (rust-lang/rust#126762)

Compiler
--------

- [Make casts of pointers to trait objects stricter.]
  (rust-lang/rust#120248)
- [Check alias args for well-formedness even if they have escaping
  bound vars.] (rust-lang/rust#123737)
- [Deprecate no-op codegen option `-Cinline-threshold=...`.]
  (rust-lang/rust#124712)
- [Re-implement a type-size based limit.]
  (rust-lang/rust#125507)
- [Properly account for alignment in `transmute` size checks.]
  (rust-lang/rust#125740)
- [Remove the `box_pointers` lint.]
  (rust-lang/rust#126018)
- [Ensure the interpreter checks bool/char for validity when they
  are used in a cast.] (rust-lang/rust#126265)
- [Improve coverage instrumentation for functions containing nested
  items.] (rust-lang/rust#127199)
- Target changes:
  - [Add Tier 3 `no_std` Xtensa targets:]
    (rust-lang/rust#125141) `xtensa-esp32-none-elf`,
    `xtensa-esp32s2-none-elf`, `xtensa-esp32s3-none-elf`
  - [Add Tier 3 `std` Xtensa targets:]
    (rust-lang/rust#126380) `xtensa-esp32-espidf`,
    `xtensa-esp32s2-espidf`, `xtensa-esp32s3-espidf`
  - [Add Tier 3 i686 Redox OS target:]
    (rust-lang/rust#126192) `i686-unknown-redox`
  - [Promote `arm64ec-pc-windows-msvc` to Tier 2.]
    (rust-lang/rust#126039)
  - [Promote `wasm32-wasip2` to Tier 2.]
    (rust-lang/rust#126967)
  - [Promote `loongarch64-unknown-linux-musl` to Tier 2 with host
    tools.] (rust-lang/rust#126298)
  - [Enable full tools and profiler for LoongArch Linux targets.]
    (rust-lang/rust#127078)
  - [Unconditionally warn on usage of `wasm32-wasi`.]
    (rust-lang/rust#126662) (see compatibility
    note below)
  - Refer to Rust's [platform support page][platform-support-doc]
    for more information on Rust's tiered platform support.

Libraries
---------

- [Split core's `PanicInfo` and std's `PanicInfo`.]
  (rust-lang/rust#115974) (see compatibility
  note below)
- [Generalize `{Rc,Arc}::make_mut()` to unsized types.]
  (rust-lang/rust#116113)
- [Replace sort implementations with stable `driftsort` and unstable
  `ipnsort`.] (rust-lang/rust#124032) All
  `slice::sort*` and `slice::select_nth*` methods are expected to
  see significant performance improvements. See the [research
  project] (https://github.com/Voultapher/sort-research-rs) for
  more details.
- [Document behavior of `create_dir_all` with respect to empty
  paths.] (rust-lang/rust#125112)
- [Fix interleaved output in the default panic hook when multiple
  threads panic simultaneously.]
  (rust-lang/rust#127397)
- Fix `Command`'s batch files argument escaping not working when
  file name has trailing whitespace or periods (CVE-2024-43402).

Stabilized APIs
---------------

- [`core::error`] (https://doc.rust-lang.org/stable/core/error/index.html)
- [`hint::assert_unchecked`]
  (https://doc.rust-lang.org/stable/core/hint/fn.assert_unchecked.html)
- [`fs::exists`] (https://doc.rust-lang.org/stable/std/fs/fn.exists.html)
- [`AtomicBool::fetch_not`]
  (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicBool.html#method.fetch_not)
- [`Duration::abs_diff`]
  (https://doc.rust-lang.org/stable/core/time/struct.Duration.html#method.abs_diff)
- [`IoSlice::advance`]
  (https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance)
- [`IoSlice::advance_slices`]
  (https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance_slices)
- [`IoSliceMut::advance`]
  (https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance)
- [`IoSliceMut::advance_slices`]
  (https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance_slices)
- [`PanicHookInfo`]
  (https://doc.rust-lang.org/stable/std/panic/struct.PanicHookInfo.html)
- [`PanicInfo::message`]
  (https://doc.rust-lang.org/stable/core/panic/struct.PanicInfo.html#method.message)
- [`PanicMessage`]
  (https://doc.rust-lang.org/stable/core/panic/struct.PanicMessage.html)

These APIs are now stable in const contexts:

- [`char::from_u32_unchecked`]
  (https://doc.rust-lang.org/stable/core/char/fn.from_u32_unchecked.html)
  (function)
- [`char::from_u32_unchecked`]
  (https://doc.rust-lang.org/stable/core/primitive.char.html#method.from_u32_unchecked)
  (method)
- [`CStr::count_bytes`]
  (https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.count_bytes)
- [`CStr::from_ptr`]
  (https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.from_ptr)

Cargo
-----

- [Generated `.cargo_vcs_info.json` is always included, even when
  `--allow-dirty` is passed.]
  (rust-lang/cargo#13960)
- [Disallow `package.license-file` and `package.readme` pointing
  to non-existent files during packaging.]
  (rust-lang/cargo#13921)
- [Disallow passing `--release`/`--debug` flag along with the
  `--profile` flag.] (rust-lang/cargo#13971)
- [Remove `lib.plugin` key support in `Cargo.toml`. Rust plugin
  support has been deprecated for four years and was removed in
  1.75.0.] (rust-lang/cargo#13902)

Compatibility Notes
-------------------

* Usage of the `wasm32-wasi` target will now issue a compiler
  warning and request users switch to the `wasm32-wasip1` target
  instead. Both targets are the same, `wasm32-wasi` is only being
  renamed, and this [change to the WASI target]
  (https://blog.rust-lang.org/2024/04/09/updates-to-rusts-wasi-targets.html)
  is being done to enable removing `wasm32-wasi` in January 2025.

* We have renamed `std::panic::PanicInfo` to `std::panic::PanicHookInfo`.
  The old name will continue to work as an alias, but will result in
  a deprecation warning starting in Rust 1.82.0.

  `core::panic::PanicInfo` will remain unchanged, however, as this
  is now a *different type*.

  The reason is that these types have different roles:
  `std::panic::PanicHookInfo` is the argument to the [panic
  hook](https://doc.rust-lang.org/stable/std/panic/fn.set_hook.html)
  in std context (where panics can have an arbitrary payload),
  while `core::panic::PanicInfo` is the argument to the
  [`#[panic_handler]`](https://doc.rust-lang.org/nomicon/panic-handler.html)
  in no_std context (where panics always carry a formatted *message*).
  Separating these types allows us to add more useful methods to
  these types, such as `std::panic::PanicHookInfo::payload_as_str()`
  and `core::panic::PanicInfo::message()`.

* The new sort implementations may panic if a type's implementation
  of [`Ord`](https://doc.rust-lang.org/std/cmp/trait.Ord.html) (or
  the given comparison function) does not implement a [total
  order](https://en.wikipedia.org/wiki/Total_order) as the trait
  requires. `Ord`'s supertraits (`PartialOrd`, `Eq`, and `PartialEq`)
  must also be consistent. The previous implementations would not
  "notice" any problem, but the new implementations have a good chance
  of detecting inconsistencies, throwing a panic rather than returning
  knowingly unsorted data.
* [In very rare cases, a change in the internal evaluation order of the trait
  solver may result in new fatal overflow errors.]
  (rust-lang/rust#126128)

Internal Changes
----------------

These changes do not affect any public interfaces of Rust, but they
represent significant improvements to the performance or internals
of rustc and related tools.

- [Add a Rust-for Linux `auto` CI job to check kernel builds.]
  (rust-lang/rust#125209)
tgross35 added a commit to tgross35/rust that referenced this pull request Sep 24, 2024
…leLapkin

improve compile errors for invalid ptr-to-ptr casts with trait objects

This is a follow-up to rust-lang#120248 to improve some of its error messages.

1. Make the borrowcheck error for "type annotation requires that x must outlive y" actually point at the type annotation, i.e. the type `T` in a `x as T` cast. This makes the error more consistent with other errors caused by type annotation in other places, such as
```text
error: lifetime may not live long enough
 --> src/lib.rs:4:12
  |
3 | fn bar(a: &i32) {
  |           - let's call the lifetime of this reference `'1`
4 |     let b: &'static i32 = a;
  |            ^^^^^^^^^^^^ type annotation requires that `'1` must outlive `'static`
```

2. Don't say "cast" when we actually mean "coercion" and give borrowcheck errors from actual casts (which is currently just the check added in rust-lang#120248) a higher priority than ones from coercions. This can improve the errors for ptr-to-ptr cast between trait objects because they are are lowered as an upcast "unsizing" coercion if possible (which may be the identity upcast) followed by the actual cast.

3. Bring back the old "casting X as Y is invalid" message for type mismatch in the principals and reword the "vtable kinds may not match" message to more accurately describe the pointer metadata and not refer to "vtables" if the metadata is unknown.

fixes rust-lang#130030

r? `@WaffleLapkin` but feel free to reassign
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Sep 25, 2024
Rollup merge of rust-lang#130234 - lukas-code:ptr-cast-errors, r=WaffleLapkin

improve compile errors for invalid ptr-to-ptr casts with trait objects

This is a follow-up to rust-lang#120248 to improve some of its error messages.

1. Make the borrowcheck error for "type annotation requires that x must outlive y" actually point at the type annotation, i.e. the type `T` in a `x as T` cast. This makes the error more consistent with other errors caused by type annotation in other places, such as
```text
error: lifetime may not live long enough
 --> src/lib.rs:4:12
  |
3 | fn bar(a: &i32) {
  |           - let's call the lifetime of this reference `'1`
4 |     let b: &'static i32 = a;
  |            ^^^^^^^^^^^^ type annotation requires that `'1` must outlive `'static`
```

2. Don't say "cast" when we actually mean "coercion" and give borrowcheck errors from actual casts (which is currently just the check added in rust-lang#120248) a higher priority than ones from coercions. This can improve the errors for ptr-to-ptr cast between trait objects because they are are lowered as an upcast "unsizing" coercion if possible (which may be the identity upcast) followed by the actual cast.

3. Bring back the old "casting X as Y is invalid" message for type mismatch in the principals and reword the "vtable kinds may not match" message to more accurately describe the pointer metadata and not refer to "vtables" if the metadata is unknown.

fixes rust-lang#130030

r? `@WaffleLapkin` but feel free to reassign
github-actions bot pushed a commit to rust-lang/miri that referenced this pull request Sep 25, 2024
improve compile errors for invalid ptr-to-ptr casts with trait objects

This is a follow-up to rust-lang/rust#120248 to improve some of its error messages.

1. Make the borrowcheck error for "type annotation requires that x must outlive y" actually point at the type annotation, i.e. the type `T` in a `x as T` cast. This makes the error more consistent with other errors caused by type annotation in other places, such as
```text
error: lifetime may not live long enough
 --> src/lib.rs:4:12
  |
3 | fn bar(a: &i32) {
  |           - let's call the lifetime of this reference `'1`
4 |     let b: &'static i32 = a;
  |            ^^^^^^^^^^^^ type annotation requires that `'1` must outlive `'static`
```

2. Don't say "cast" when we actually mean "coercion" and give borrowcheck errors from actual casts (which is currently just the check added in rust-lang/rust#120248) a higher priority than ones from coercions. This can improve the errors for ptr-to-ptr cast between trait objects because they are are lowered as an upcast "unsizing" coercion if possible (which may be the identity upcast) followed by the actual cast.

3. Bring back the old "casting X as Y is invalid" message for type mismatch in the principals and reword the "vtable kinds may not match" message to more accurately describe the pointer metadata and not refer to "vtables" if the metadata is unknown.

fixes rust-lang/rust#130030

r? `@WaffleLapkin` but feel free to reassign
@oxalica
Copy link
Contributor

oxalica commented Nov 3, 2024

  • We only care about the metadata/last field, so you can still cast *const dyn T to *const WithHeader<dyn T>, etc

This check makes the pointer metadata of a struct observable by as on stable rustc. Is this intended? So this means changing the ptr metadata of a struct in a library is a breaking change.

playground

struct S<T: ?Sized> {
    // s: Box<T>, // error: thin to fat pointer cast
    // _marker: PhantomData<T>, s: [u8], // error: ptr metadata mismatch
    s: T, // OK
}

fn cast_dyn<T: ?Sized>(t: *mut S<T>) -> *mut T {
    t as _
}

It's reasonable that changing between thin and fat pointer is breaking. But also exposing the unsized representation (T v.s. PhantamData<T>, [u8]) sounds a bit unintuitive to me.

@lukas-code
Copy link
Member

This check makes the pointer metadata of a struct observable by as on stable rustc. Is this intended? So this means changing the ptr metadata of a struct in a library is a breaking change.

This behavior was not introduced by this PR, it's been like that since Rust 1.2.0.

netbsd-srcmastr pushed a commit to NetBSD/pkgsrc that referenced this pull request Nov 24, 2024
Pkgsrc changes:
 * Adapt patches, apply to new vendored crates where needed.
 * Back-port rust pull request 130110, "make dist vendoring configurable"
 * Disable "dist vendoring", otherwise cargo would try to access
   the network during the build phase.

Upstream changes:

Version 1.81.0 (2024-09-05)
==========================

Language
--------

- [Abort on uncaught panics in `extern "C"` functions.]
  (rust-lang/rust#116088)
- [Fix ambiguous cases of multiple `&` in elided self lifetimes.]
  (rust-lang/rust#117967)
- [Stabilize `#[expect]` for lints (RFC 2383),]
  (rust-lang/rust#120924) like `#[allow]`
  with a warning if the lint is _not_ fulfilled.
- [Change method resolution to constrain hidden types instead of
  rejecting method candidates.]
  (rust-lang/rust#123962)
- [Bump `elided_lifetimes_in_associated_constant` to deny.]
  (rust-lang/rust#124211)
- [`offset_from`: always allow pointers to point to the same
  address.] (rust-lang/rust#124921)
- [Allow constraining opaque types during subtyping in the trait
  system.] (rust-lang/rust#125447)
- [Allow constraining opaque types during various unsizing casts.]
  (rust-lang/rust#125610)
- [Deny keyword lifetimes pre-expansion.]
  (rust-lang/rust#126762)

Compiler
--------

- [Make casts of pointers to trait objects stricter.]
  (rust-lang/rust#120248)
- [Check alias args for well-formedness even if they have escaping
  bound vars.] (rust-lang/rust#123737)
- [Deprecate no-op codegen option `-Cinline-threshold=...`.]
  (rust-lang/rust#124712)
- [Re-implement a type-size based limit.]
  (rust-lang/rust#125507)
- [Properly account for alignment in `transmute` size checks.]
  (rust-lang/rust#125740)
- [Remove the `box_pointers` lint.]
  (rust-lang/rust#126018)
- [Ensure the interpreter checks bool/char for validity when they
  are used in a cast.] (rust-lang/rust#126265)
- [Improve coverage instrumentation for functions containing nested
  items.] (rust-lang/rust#127199)
- Target changes:
  - [Add Tier 3 `no_std` Xtensa targets:]
    (rust-lang/rust#125141) `xtensa-esp32-none-elf`,
    `xtensa-esp32s2-none-elf`, `xtensa-esp32s3-none-elf`
  - [Add Tier 3 `std` Xtensa targets:]
    (rust-lang/rust#126380) `xtensa-esp32-espidf`,
    `xtensa-esp32s2-espidf`, `xtensa-esp32s3-espidf`
  - [Add Tier 3 i686 Redox OS target:]
    (rust-lang/rust#126192) `i686-unknown-redox`
  - [Promote `arm64ec-pc-windows-msvc` to Tier 2.]
    (rust-lang/rust#126039)
  - [Promote `wasm32-wasip2` to Tier 2.]
    (rust-lang/rust#126967)
  - [Promote `loongarch64-unknown-linux-musl` to Tier 2 with host
    tools.] (rust-lang/rust#126298)
  - [Enable full tools and profiler for LoongArch Linux targets.]
    (rust-lang/rust#127078)
  - [Unconditionally warn on usage of `wasm32-wasi`.]
    (rust-lang/rust#126662) (see compatibility
    note below)
  - Refer to Rust's [platform support page][platform-support-doc]
    for more information on Rust's tiered platform support.

Libraries
---------

- [Split core's `PanicInfo` and std's `PanicInfo`.]
  (rust-lang/rust#115974) (see compatibility
  note below)
- [Generalize `{Rc,Arc}::make_mut()` to unsized types.]
  (rust-lang/rust#116113)
- [Replace sort implementations with stable `driftsort` and unstable
  `ipnsort`.] (rust-lang/rust#124032) All
  `slice::sort*` and `slice::select_nth*` methods are expected to
  see significant performance improvements. See the [research
  project] (https://github.com/Voultapher/sort-research-rs) for
  more details.
- [Document behavior of `create_dir_all` with respect to empty
  paths.] (rust-lang/rust#125112)
- [Fix interleaved output in the default panic hook when multiple
  threads panic simultaneously.]
  (rust-lang/rust#127397)
- Fix `Command`'s batch files argument escaping not working when
  file name has trailing whitespace or periods (CVE-2024-43402).

Stabilized APIs
---------------

- [`core::error`] (https://doc.rust-lang.org/stable/core/error/index.html)
- [`hint::assert_unchecked`]
  (https://doc.rust-lang.org/stable/core/hint/fn.assert_unchecked.html)
- [`fs::exists`] (https://doc.rust-lang.org/stable/std/fs/fn.exists.html)
- [`AtomicBool::fetch_not`]
  (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicBool.html#method.fetch_not)
- [`Duration::abs_diff`]
  (https://doc.rust-lang.org/stable/core/time/struct.Duration.html#method.abs_diff)
- [`IoSlice::advance`]
  (https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance)
- [`IoSlice::advance_slices`]
  (https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance_slices)
- [`IoSliceMut::advance`]
  (https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance)
- [`IoSliceMut::advance_slices`]
  (https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance_slices)
- [`PanicHookInfo`]
  (https://doc.rust-lang.org/stable/std/panic/struct.PanicHookInfo.html)
- [`PanicInfo::message`]
  (https://doc.rust-lang.org/stable/core/panic/struct.PanicInfo.html#method.message)
- [`PanicMessage`]
  (https://doc.rust-lang.org/stable/core/panic/struct.PanicMessage.html)

These APIs are now stable in const contexts:

- [`char::from_u32_unchecked`]
  (https://doc.rust-lang.org/stable/core/char/fn.from_u32_unchecked.html)
  (function)
- [`char::from_u32_unchecked`]
  (https://doc.rust-lang.org/stable/core/primitive.char.html#method.from_u32_unchecked)
  (method)
- [`CStr::count_bytes`]
  (https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.count_bytes)
- [`CStr::from_ptr`]
  (https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.from_ptr)

Cargo
-----

- [Generated `.cargo_vcs_info.json` is always included, even when
  `--allow-dirty` is passed.]
  (rust-lang/cargo#13960)
- [Disallow `package.license-file` and `package.readme` pointing
  to non-existent files during packaging.]
  (rust-lang/cargo#13921)
- [Disallow passing `--release`/`--debug` flag along with the
  `--profile` flag.] (rust-lang/cargo#13971)
- [Remove `lib.plugin` key support in `Cargo.toml`. Rust plugin
  support has been deprecated for four years and was removed in
  1.75.0.] (rust-lang/cargo#13902)

Compatibility Notes
-------------------

* Usage of the `wasm32-wasi` target will now issue a compiler
  warning and request users switch to the `wasm32-wasip1` target
  instead. Both targets are the same, `wasm32-wasi` is only being
  renamed, and this [change to the WASI target]
  (https://blog.rust-lang.org/2024/04/09/updates-to-rusts-wasi-targets.html)
  is being done to enable removing `wasm32-wasi` in January 2025.

* We have renamed `std::panic::PanicInfo` to `std::panic::PanicHookInfo`.
  The old name will continue to work as an alias, but will result in
  a deprecation warning starting in Rust 1.82.0.

  `core::panic::PanicInfo` will remain unchanged, however, as this
  is now a *different type*.

  The reason is that these types have different roles:
  `std::panic::PanicHookInfo` is the argument to the [panic
  hook](https://doc.rust-lang.org/stable/std/panic/fn.set_hook.html)
  in std context (where panics can have an arbitrary payload),
  while `core::panic::PanicInfo` is the argument to the
  [`#[panic_handler]`](https://doc.rust-lang.org/nomicon/panic-handler.html)
  in no_std context (where panics always carry a formatted *message*).
  Separating these types allows us to add more useful methods to
  these types, such as `std::panic::PanicHookInfo::payload_as_str()`
  and `core::panic::PanicInfo::message()`.

* The new sort implementations may panic if a type's implementation
  of [`Ord`](https://doc.rust-lang.org/std/cmp/trait.Ord.html) (or
  the given comparison function) does not implement a [total
  order](https://en.wikipedia.org/wiki/Total_order) as the trait
  requires. `Ord`'s supertraits (`PartialOrd`, `Eq`, and `PartialEq`)
  must also be consistent. The previous implementations would not
  "notice" any problem, but the new implementations have a good chance
  of detecting inconsistencies, throwing a panic rather than returning
  knowingly unsorted data.
* [In very rare cases, a change in the internal evaluation order of the trait
  solver may result in new fatal overflow errors.]
  (rust-lang/rust#126128)

Internal Changes
----------------

These changes do not affect any public interfaces of Rust, but they
represent significant improvements to the performance or internals
of rustc and related tools.

- [Add a Rust-for Linux `auto` CI job to check kernel builds.]
  (rust-lang/rust#125209)
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