Upgrade to Rust 1.64

.github/workflows/main.yml

@@ -12,8 +12,8 @@ jobs:
     - name: Install Rust
       run: |
         rustup set profile minimal
-        rustup toolchain install 1.63 -c rust-docs
-        rustup default 1.63
+        rustup toolchain install 1.64 -c rust-docs
+        rustup default 1.64
     - name: Install mdbook
       run: |
         mkdir bin

listings/ch03-common-programming-concepts/no-listing-19-statements-vs-expressions/output.txt

@@ -1,5 +1,11 @@
 $ cargo run
    Compiling functions v0.1.0 (file:///projects/functions)
+error: expected expression, found `let` statement
+ --> src/main.rs:2:14
+  |
+2 |     let x = (let y = 6);
+  |              ^^^
+
 error: expected expression, found statement (`let`)
  --> src/main.rs:2:14
   |
@@ -31,4 +37,4 @@ help: remove these parentheses
 
 For more information about this error, try `rustc --explain E0658`.
 warning: `functions` (bin "functions") generated 1 warning
-error: could not compile `functions` due to 2 previous errors; 1 warning emitted
+error: could not compile `functions` due to 3 previous errors; 1 warning emitted

listings/ch04-understanding-ownership/no-listing-04-cant-use-after-move/output.txt

@@ -11,7 +11,7 @@ error[E0382]: borrow of moved value: `s1`
 5 |     println!("{}, world!", s1);
   |                            ^^ value borrowed here after move
   |
-  = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+  = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 For more information about this error, try `rustc --explain E0382`.
 error: could not compile `ownership` due to previous error

listings/ch04-understanding-ownership/no-listing-14-dangling-reference/output.txt

@@ -10,7 +10,7 @@ error[E0106]: missing lifetime specifier
 help: consider using the `'static` lifetime
   |
 5 | fn dangle() -> &'static String {
-  |                ~~~~~~~~
+  |                 +++++++
 
 For more information about this error, try `rustc --explain E0106`.
 error: could not compile `ownership` due to previous error

listings/ch05-using-structs-to-structure-related-data/listing-05-11/output.txt

@@ -8,7 +8,7 @@ error[E0277]: `Rectangle` doesn't implement `std::fmt::Display`
    |
    = help: the trait `std::fmt::Display` is not implemented for `Rectangle`
    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 For more information about this error, try `rustc --explain E0277`.
 error: could not compile `rectangles` due to previous error

listings/ch05-using-structs-to-structure-related-data/output-only-01-debug/output.txt

@@ -8,7 +8,7 @@ error[E0277]: `Rectangle` doesn't implement `Debug`
    |
    = help: the trait `Debug` is not implemented for `Rectangle`
    = note: add `#[derive(Debug)]` to `Rectangle` or manually `impl Debug for Rectangle`
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider annotating `Rectangle` with `#[derive(Debug)]`
    |
 1  | #[derive(Debug)]

listings/ch13-functional-features/listing-13-08/output.txt

@@ -3,16 +3,13 @@ $ cargo run
 error[E0507]: cannot move out of `value`, a captured variable in an `FnMut` closure
   --> src/main.rs:18:30
    |
-15 |       let value = String::from("by key called");
-   |           ----- captured outer variable
+15 |     let value = String::from("by key called");
+   |         ----- captured outer variable
 16 |
-17 |       list.sort_by_key(|r| {
-   |  ______________________-
-18 | |         sort_operations.push(value);
-   | |                              ^^^^^ move occurs because `value` has type `String`, which does not implement the `Copy` trait
-19 | |         r.width
-20 | |     });
-   | |_____- captured by this `FnMut` closure
+17 |     list.sort_by_key(|r| {
+   |                      --- captured by this `FnMut` closure
+18 |         sort_operations.push(value);
+   |                              ^^^^^ move occurs because `value` has type `String`, which does not implement the `Copy` trait
 
 For more information about this error, try `rustc --explain E0507`.
 error: could not compile `rectangles` due to previous error

listings/ch15-smart-pointers/listing-15-03/output.txt

@@ -13,15 +13,5 @@ help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `List` repre
 2 |     Cons(i32, Box<List>),
   |               ++++    +
 
-error[E0391]: cycle detected when computing drop-check constraints for `List`
- --> src/main.rs:1:1
-  |
-1 | enum List {
-  | ^^^^^^^^^
-  |
-  = note: ...which immediately requires computing drop-check constraints for `List` again
-  = note: cycle used when computing dropck types for `Canonical { max_universe: U0, variables: [], value: ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: UserFacing, constness: NotConst }, value: List } }`
-
-Some errors have detailed explanations: E0072, E0391.
-For more information about an error, try `rustc --explain E0072`.
-error: could not compile `cons-list` due to 2 previous errors
+For more information about this error, try `rustc --explain E0072`.
+error: could not compile `cons-list` due to previous error

listings/ch16-fearless-concurrency/listing-16-09/output.txt

@@ -10,7 +10,7 @@ error[E0382]: borrow of moved value: `val`
 10 |         println!("val is {}", val);
    |                               ^^^ value borrowed here after move
    |
-   = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 For more information about this error, try `rustc --explain E0382`.
 error: could not compile `message-passing` due to previous error

listings/ch16-fearless-concurrency/listing-16-14/output.txt

@@ -3,27 +3,17 @@ $ cargo run
 error[E0277]: `Rc<Mutex<i32>>` cannot be sent between threads safely
   --> src/main.rs:11:22
    |
-11 |           let handle = thread::spawn(move || {
-   |  ______________________^^^^^^^^^^^^^_-
-   | |                      |
-   | |                      `Rc<Mutex<i32>>` cannot be sent between threads safely
-12 | |             let mut num = counter.lock().unwrap();
-13 | |
-14 | |             *num += 1;
-15 | |         });
-   | |_________- within this `[closure@src/main.rs:11:36: 15:10]`
+11 |         let handle = thread::spawn(move || {
+   |                      ^^^^^^^^^^^^^ ------- within this `[closure@src/main.rs:11:36: 11:43]`
+   |                      |
+   |                      `Rc<Mutex<i32>>` cannot be sent between threads safely
    |
-   = help: within `[closure@src/main.rs:11:36: 15:10]`, the trait `Send` is not implemented for `Rc<Mutex<i32>>`
+   = help: within `[closure@src/main.rs:11:36: 11:43]`, the trait `Send` is not implemented for `Rc<Mutex<i32>>`
 note: required because it's used within this closure
   --> src/main.rs:11:36
    |
-11 |           let handle = thread::spawn(move || {
-   |  ____________________________________^
-12 | |             let mut num = counter.lock().unwrap();
-13 | |
-14 | |             *num += 1;
-15 | |         });
-   | |_________^
+11 |         let handle = thread::spawn(move || {
+   |                                    ^^^^^^^
 note: required by a bound in `spawn`
 
 For more information about this error, try `rustc --explain E0277`.

listings/ch17-oop/listing-17-10/output.txt

@@ -7,7 +7,7 @@ error[E0277]: the trait bound `String: Draw` is not satisfied
   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Draw` is not implemented for `String`
   |
   = help: the trait `Draw` is implemented for `Button`
-  = note: required for the cast to the object type `dyn Draw`
+  = note: required for the cast from `String` to the object type `dyn Draw`
 
 For more information about this error, try `rustc --explain E0277`.
 error: could not compile `gui` due to previous error

listings/ch19-advanced-features/listing-19-20/output.txt

@@ -1,12 +1,18 @@
 $ cargo run
    Compiling traits-example v0.1.0 (file:///projects/traits-example)
-error[E0283]: type annotations needed
+error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type
   --> src/main.rs:20:43
    |
+2  |     fn baby_name() -> String;
+   |     ------------------------- `Animal::baby_name` defined here
+...
 20 |     println!("A baby dog is called a {}", Animal::baby_name());
-   |                                           ^^^^^^^^^^^^^^^^^ cannot infer type
+   |                                           ^^^^^^^^^^^^^^^^^ cannot call associated function of trait
    |
-   = note: cannot satisfy `_: Animal`
+help: use the fully-qualified path to the only available implementation
+   |
+20 |     println!("A baby dog is called a {}", <::Dog as Animal>::baby_name());
+   |                                           +++++++++       +
 
-For more information about this error, try `rustc --explain E0283`.
+For more information about this error, try `rustc --explain E0790`.
 error: could not compile `traits-example` due to previous error

listings/ch19-advanced-features/no-listing-18-returns-closure/output.txt

@@ -7,7 +7,7 @@ error[E0746]: return type cannot have an unboxed trait object
   |                         ^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   |
   = note: for information on `impl Trait`, see <https://doc.rust-lang.org/book/ch10-02-traits.html#returning-types-that-implement-traits>
-help: use `impl Fn(i32) -> i32` as the return type, as all return paths are of type `[closure@src/lib.rs:2:5: 2:14]`, which implements `Fn(i32) -> i32`
+help: use `impl Fn(i32) -> i32` as the return type, as all return paths are of type `[closure@src/lib.rs:2:5: 2:8]`, which implements `Fn(i32) -> i32`
   |
 1 | fn returns_closure() -> impl Fn(i32) -> i32 {
   |                         ~~~~~~~~~~~~~~~~~~~

rust-toolchain

@@ -1 +1 @@
-1.63
+1.64

src/title-page.md

@@ -2,7 +2,7 @@
 
 *by Steve Klabnik and Carol Nichols, with contributions from the Rust Community*
 
-This version of the text assumes you’re using Rust 1.63 (released 2022-08-11)
+This version of the text assumes you’re using Rust 1.64 (released 2022-09-22)
 or later. See the [“Installation” section of Chapter 1][install]<!-- ignore -->
 to install or update Rust.