async fn ICEs in macro on stable #67778
Labels
A-async-await
Area: Async & Await
A-macros
Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)
AsyncAwait-Triaged
Async-await issues that have been triaged during a working group meeting.
C-bug
Category: This is a bug.
I-ICE
Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️
P-high
High priority
T-compiler
Relevant to the compiler team, which will review and decide on the PR/issue.
Comments
XAMPPRocky
added
A-async-await
|
Reproduced with lastest nighlty: thread 'rustc' panicked at 'no entry found for key', src/libcore/option.rs:1188:5
stack backtrace:
0: backtrace::backtrace::libunwind::trace
at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
1: backtrace::backtrace::trace_unsynchronized
at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
2: std::sys_common::backtrace::_print_fmt
at src/libstd/sys_common/backtrace.rs:77
3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt
at src/libstd/sys_common/backtrace.rs:59
4: core::fmt::write
at src/libcore/fmt/mod.rs:1057
5: std::io::Write::write_fmt
at src/libstd/io/mod.rs:1426
6: std::sys_common::backtrace::_print
at src/libstd/sys_common/backtrace.rs:62
7: std::sys_common::backtrace::print
at src/libstd/sys_common/backtrace.rs:49
8: std::panicking::default_hook::{{closure}}
at src/libstd/panicking.rs:195
9: std::panicking::default_hook
at src/libstd/panicking.rs:215
10: rustc_driver::report_ice
11: <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call
at /rustc/119307a83e12291a3fc126735d6bd0292c443464/src/liballoc/boxed.rs:1029
12: proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::{{closure}}::{{closure}}
at /rustc/119307a83e12291a3fc126735d6bd0292c443464/src/libproc_macro/bridge/client.rs:305
13: std::panicking::rust_panic_with_hook
at src/libstd/panicking.rs:476
14: rust_begin_unwind
at src/libstd/panicking.rs:376
15: core::panicking::panic_fmt
at src/libcore/panicking.rs:84
16: core::option::expect_failed
at src/libcore/option.rs:1188
17: rustc::hir::map::definitions::Definitions::invocation_parent
18: rustc_resolve::macros::<impl rustc_expand::base::Resolver for rustc_resolve::Resolver>::visit_ast_fragment_with_placeholders
19: rustc_expand::expand::MacroExpander::collect_invocations
20: rustc_expand::expand::MacroExpander::fully_expand_fragment
21: rustc_expand::expand::MacroExpander::expand_crate
22: rustc_interface::passes::configure_and_expand_inner::{{closure}}
23: rustc::util::common::time
24: rustc_interface::passes::configure_and_expand::{{closure}}
25: rustc_interface::passes::configure_and_expand
26: rustc_interface::queries::Queries::expansion
27: rustc_interface::interface::run_compiler_in_existing_thread_pool
28: scoped_tls::ScopedKey<T>::set
29: syntax::with_globals
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.ICE from macro resolving I believe. rust/src/librustc/hir/map/definitions.rs Lines 511 to 513 in e380efa cc @petrochenkov |
csmoe
added
A-macros
Centril
added
the
E-needs-mcve
This comment has been minimized.
This comment has been minimized.
|
triage: P-high, removing nomination tag. (instead, going to proritize going through the P-high issues that have accumulated over last two weeks.) |
tmandry
added
AsyncAwait-OnDeck
AsyncAwait-Triaged
|
Visiting from triage.. the next step is to reduce the reproducer. |
|
Reduced (playground): macro_rules! doc_comment {
($x: expr, $($tt: tt)*) => {
#[doc = $x]
$($tt)*
};
}
macro_rules! paged_routes {
($($rest: tt)* ) => {
doc_comment! {
concat!("", ""),
async fn name() {}
}
paged_routes! {
$($rest)*
}
};
() => {}
}
impl Mastodon {
paged_routes! {
}
} |
|
Further reduced: macro_rules! with_doc {
($doc: expr) => {
#[doc = $doc]
async fn f() {}
};
}
with_doc!(concat!("")); |
Centril
removed
the
E-needs-mcve
|
Fixed in #70011. |
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I was migrating my library (Mammut) to use reqwest
0.10and be async, and the compiler ICEd. I don't know how to reduce it further than this.I tried this code:
XAMPPRocky/Mammut@f30bdec#diff-b4aea3e418ccdb71239b96952d9cddb6
I expected to see this happen: A successful build or another compile error
Instead, this happened:
thread 'rustc' panicked at 'no entry found for key', src/libcore/option.rs:1188:5Meta
I also tried this on the latest nightly and it emits the same error.
rustc --version --verbose:Backtrace:
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