Update to Rust 1.73

.github/workflows/main.yml

@@ -12,8 +12,8 @@ jobs:
     - name: Install Rust
       run: |
         rustup set profile minimal
-        rustup toolchain install 1.72 -c rust-docs
-        rustup default 1.72
+        rustup toolchain install 1.73 -c rust-docs
+        rustup default 1.73
     - name: Install mdbook
       run: |
         mkdir bin

listings/ch02-guessing-game-tutorial/listing-02-04/output.txt

@@ -18,7 +18,7 @@ error[E0308]: mismatched types
    = note: expected reference `&String`
               found reference `&{integer}`
 note: method defined here
-  --> /rustc/d5c2e9c342b358556da91d61ed4133f6f50fc0c3/library/core/src/cmp.rs:775:8
+  --> /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library/core/src/cmp.rs:775:8
 
 For more information about this error, try `rustc --explain E0308`.
 error: could not compile `guessing_game` (bin "guessing_game") due to previous error

listings/ch04-understanding-ownership/listing-04-06/output.txt

@@ -4,7 +4,7 @@ error[E0596]: cannot borrow `*some_string` as mutable, as it is behind a `&` ref
  --> src/main.rs:8:5
   |
 8 |     some_string.push_str(", world");
-  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `some_string` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+  |     ^^^^^^^^^^^ `some_string` is a `&` reference, so the data it refers to cannot be borrowed as mutable
   |
 help: consider changing this to be a mutable reference
   |

listings/ch06-enums-and-pattern-matching/no-listing-10-non-exhaustive-match/output.txt

@@ -7,8 +7,8 @@ error[E0004]: non-exhaustive patterns: `None` not covered
   |               ^ pattern `None` not covered
   |
 note: `Option<i32>` defined here
- --> /rustc/d5c2e9c342b358556da91d61ed4133f6f50fc0c3/library/core/src/option.rs:563:1
- ::: /rustc/d5c2e9c342b358556da91d61ed4133f6f50fc0c3/library/core/src/option.rs:567:5
+ --> /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library/core/src/option.rs:563:1
+ ::: /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library/core/src/option.rs:567:5
   |
   = note: not covered
   = note: the matched value is of type `Option<i32>`

listings/ch08-common-collections/output-only-01-not-char-boundary/output.txt

@@ -2,5 +2,6 @@ $ cargo run
    Compiling collections v0.1.0 (file:///projects/collections)
     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
      Running `target/debug/collections`
-thread 'main' panicked at 'byte index 1 is not a char boundary; it is inside 'З' (bytes 0..2) of `Здравствуйте`', src/main.rs:4:14
+thread 'main' panicked at src/main.rs:4:19:
+byte index 1 is not a char boundary; it is inside 'З' (bytes 0..2) of `Здравствуйте`
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

listings/ch09-error-handling/listing-09-01/output.txt

@@ -2,5 +2,6 @@ $ cargo run
    Compiling panic v0.1.0 (file:///projects/panic)
     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
      Running `target/debug/panic`
-thread 'main' panicked at 'index out of bounds: the len is 3 but the index is 99', src/main.rs:4:5
+thread 'main' panicked at src/main.rs:4:6:
+index out of bounds: the len is 3 but the index is 99
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

listings/ch09-error-handling/listing-09-04/output.txt

@@ -2,5 +2,6 @@ $ cargo run
    Compiling error-handling v0.1.0 (file:///projects/error-handling)
     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
      Running `target/debug/error-handling`
-thread 'main' panicked at 'Problem opening the file: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/main.rs:8:23
+thread 'main' panicked at src/main.rs:8:23:
+Problem opening the file: Os { code: 2, kind: NotFound, message: "No such file or directory" }
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

listings/ch09-error-handling/no-listing-01-panic/output.txt

@@ -2,5 +2,6 @@ $ cargo run
    Compiling panic v0.1.0 (file:///projects/panic)
     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
      Running `target/debug/panic`
-thread 'main' panicked at 'crash and burn', src/main.rs:2:5
+thread 'main' panicked at src/main.rs:2:5:
+crash and burn
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

listings/ch10-generic-types-traits-and-lifetimes/listing-10-23/output.txt

@@ -6,7 +6,7 @@ error[E0597]: `string2` does not live long enough
 5 |         let string2 = String::from("xyz");
   |             ------- binding `string2` declared here
 6 |         result = longest(string1.as_str(), string2.as_str());
-  |                                            ^^^^^^^^^^^^^^^^ borrowed value does not live long enough
+  |                                            ^^^^^^^ borrowed value does not live long enough
 7 |     }
   |     - `string2` dropped here while still borrowed
 8 |     println!("The longest string is {}", result);

listings/ch10-generic-types-traits-and-lifetimes/no-listing-09-unrelated-lifetime/output.txt

@@ -1,10 +1,13 @@
 $ cargo run
    Compiling chapter10 v0.1.0 (file:///projects/chapter10)
-error[E0515]: cannot return reference to local variable `result`
+error[E0515]: cannot return value referencing local variable `result`
   --> src/main.rs:11:5
    |
 11 |     result.as_str()
-   |     ^^^^^^^^^^^^^^^ returns a reference to data owned by the current function
+   |     ------^^^^^^^^^
+   |     |
+   |     returns a value referencing data owned by the current function
+   |     `result` is borrowed here
 
 For more information about this error, try `rustc --explain E0515`.
 error: could not compile `chapter10` (bin "chapter10") due to previous error

listings/ch11-writing-automated-tests/listing-11-03/output.txt

@@ -10,7 +10,8 @@ test tests::exploration ... ok
 failures:
 
 ---- tests::another stdout ----
-thread 'tests::another' panicked at 'Make this test fail', src/lib.rs:10:9
+thread 'tests::another' panicked at src/lib.rs:10:9:
+Make this test fail
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 

listings/ch11-writing-automated-tests/listing-11-10/output.txt

@@ -11,9 +11,10 @@ failures:
 
 ---- tests::this_test_will_fail stdout ----
 I got the value 8
-thread 'tests::this_test_will_fail' panicked at 'assertion failed: `(left == right)`
-  left: `5`,
- right: `10`', src/lib.rs:19:9
+thread 'tests::this_test_will_fail' panicked at src/lib.rs:19:9:
+assertion `left == right` failed
+  left: 5
+ right: 10
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 

listings/ch11-writing-automated-tests/no-listing-03-introducing-a-bug/output.txt

@@ -10,7 +10,8 @@ test tests::smaller_cannot_hold_larger ... ok
 failures:
 
 ---- tests::larger_can_hold_smaller stdout ----
-thread 'tests::larger_can_hold_smaller' panicked at 'assertion failed: larger.can_hold(&smaller)', src/lib.rs:28:9
+thread 'tests::larger_can_hold_smaller' panicked at src/lib.rs:28:9:
+assertion failed: larger.can_hold(&smaller)
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 

listings/ch11-writing-automated-tests/no-listing-04-bug-in-add-two/output.txt

@@ -9,9 +9,10 @@ test tests::it_adds_two ... FAILED
 failures:
 
 ---- tests::it_adds_two stdout ----
-thread 'tests::it_adds_two' panicked at 'assertion failed: `(left == right)`
-  left: `4`,
- right: `5`', src/lib.rs:11:9
+thread 'tests::it_adds_two' panicked at src/lib.rs:11:9:
+assertion `left == right` failed
+  left: 4
+ right: 5
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 

listings/ch11-writing-automated-tests/no-listing-06-greeter-with-bug/output.txt

@@ -9,7 +9,8 @@ test tests::greeting_contains_name ... FAILED
 failures:
 
 ---- tests::greeting_contains_name stdout ----
-thread 'tests::greeting_contains_name' panicked at 'assertion failed: result.contains(\"Carol\")', src/lib.rs:12:9
+thread 'tests::greeting_contains_name' panicked at src/lib.rs:12:9:
+assertion failed: result.contains(\"Carol\")
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 

listings/ch11-writing-automated-tests/no-listing-07-custom-failure-message/output.txt

@@ -9,7 +9,8 @@ test tests::greeting_contains_name ... FAILED
 failures:
 
 ---- tests::greeting_contains_name stdout ----
-thread 'tests::greeting_contains_name' panicked at 'Greeting did not contain name, value was `Hello!`', src/lib.rs:12:9
+thread 'tests::greeting_contains_name' panicked at src/lib.rs:12:9:
+Greeting did not contain name, value was `Hello!`
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 

listings/ch11-writing-automated-tests/no-listing-09-guess-with-panic-msg-bug/output.txt

@@ -9,7 +9,8 @@ test tests::greater_than_100 - should panic ... FAILED
 failures:
 
 ---- tests::greater_than_100 stdout ----
-thread 'tests::greater_than_100' panicked at 'Guess value must be greater than or equal to 1, got 200.', src/lib.rs:13:13
+thread 'tests::greater_than_100' panicked at src/lib.rs:13:13:
+Guess value must be greater than or equal to 1, got 200.
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 note: panic did not contain expected string
       panic message: `"Guess value must be greater than or equal to 1, got 200."`,

listings/ch11-writing-automated-tests/output-only-01-show-output/output.txt

@@ -20,9 +20,10 @@ failures:
 
 ---- tests::this_test_will_fail stdout ----
 I got the value 8
-thread 'tests::this_test_will_fail' panicked at 'assertion failed: `(left == right)`
-  left: `5`,
- right: `10`', src/lib.rs:19:9
+thread 'tests::this_test_will_fail' panicked at src/lib.rs:19:9:
+assertion `left == right` failed
+  left: 5
+ right: 10
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 

listings/ch12-an-io-project/listing-12-07/output.txt

@@ -2,5 +2,6 @@ $ cargo run
    Compiling minigrep v0.1.0 (file:///projects/minigrep)
     Finished dev [unoptimized + debuginfo] target(s) in 0.0s
      Running `target/debug/minigrep`
-thread 'main' panicked at 'index out of bounds: the len is 1 but the index is 1', src/main.rs:27:21
+thread 'main' panicked at src/main.rs:27:21:
+index out of bounds: the len is 1 but the index is 1
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

listings/ch12-an-io-project/listing-12-08/output.txt

@@ -2,5 +2,6 @@ $ cargo run
    Compiling minigrep v0.1.0 (file:///projects/minigrep)
     Finished dev [unoptimized + debuginfo] target(s) in 0.0s
      Running `target/debug/minigrep`
-thread 'main' panicked at 'not enough arguments', src/main.rs:26:13
+thread 'main' panicked at src/main.rs:26:13:
+not enough arguments
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

listings/ch12-an-io-project/listing-12-16/output.txt

@@ -9,9 +9,10 @@ test tests::one_result ... FAILED
 failures:
 
 ---- tests::one_result stdout ----
-thread 'tests::one_result' panicked at 'assertion failed: `(left == right)`
-  left: `["safe, fast, productive."]`,
- right: `[]`', src/lib.rs:44:9
+thread 'tests::one_result' panicked at src/lib.rs:44:9:
+assertion `left == right` failed
+  left: ["safe, fast, productive."]
+ right: []
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 

listings/ch15-smart-pointers/listing-15-21/output.txt

@@ -4,7 +4,7 @@ error[E0596]: cannot borrow `self.sent_messages` as mutable, as it is behind a `
   --> src/lib.rs:58:13
    |
 58 |             self.sent_messages.push(String::from(message));
-   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |             ^^^^^^^^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
    |
 help: consider changing this to be a mutable reference
    |
@@ -13,4 +13,3 @@ help: consider changing this to be a mutable reference
 
 For more information about this error, try `rustc --explain E0596`.
 error: could not compile `limit-tracker` (lib test) due to previous error
-warning: build failed, waiting for other jobs to finish...

listings/ch15-smart-pointers/listing-15-23/output.txt

@@ -9,7 +9,8 @@ test tests::it_sends_an_over_75_percent_warning_message ... FAILED
 failures:
 
 ---- tests::it_sends_an_over_75_percent_warning_message stdout ----
-thread 'tests::it_sends_an_over_75_percent_warning_message' panicked at 'already borrowed: BorrowMutError', src/lib.rs:60:53
+thread 'tests::it_sends_an_over_75_percent_warning_message' panicked at src/lib.rs:60:53:
+already borrowed: BorrowMutError
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
 

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

@@ -11,6 +11,10 @@ error[E0382]: borrow of moved value: `val`
    |                               ^^^ value borrowed here after move
    |
    = 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 cloning the value if the performance cost is acceptable
+   |
+9  |         tx.send(val.clone()).unwrap();
+   |                    ++++++++
 
 For more information about this error, try `rustc --explain E0382`.
 error: could not compile `message-passing` (bin "message-passing") due to previous error

listings/ch16-fearless-concurrency/listing-16-13/output.txt

@@ -10,7 +10,7 @@ error[E0382]: borrow of moved value: `counter`
    |                                    ------- value moved into closure here, in previous iteration of loop
 ...
 21 |     println!("Result: {}", *counter.lock().unwrap());
-   |                             ^^^^^^^^^^^^^^ value borrowed here after move
+   |                             ^^^^^^^ value borrowed here after move
 
 For more information about this error, try `rustc --explain E0382`.
 error: could not compile `shared-state` (bin "shared-state") due to previous error

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

@@ -22,7 +22,7 @@ note: required because it's used within this closure
 11 |         let handle = thread::spawn(move || {
    |                                    ^^^^^^^
 note: required by a bound in `spawn`
-  --> /rustc/d5c2e9c342b358556da91d61ed4133f6f50fc0c3/library/std/src/thread/mod.rs:680:1
+  --> /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library/std/src/thread/mod.rs:680:1
 
 For more information about this error, try `rustc --explain E0277`.
 error: could not compile `shared-state` (bin "shared-state") due to previous error

listings/ch20-web-server/listing-20-17/output.txt

@@ -6,8 +6,16 @@ error[E0382]: use of moved value: `receiver`
 21 |         let (sender, receiver) = mpsc::channel();
    |                      -------- move occurs because `receiver` has type `std::sync::mpsc::Receiver<Job>`, which does not implement the `Copy` trait
 ...
+25 |         for id in 0..size {
+   |         ----------------- inside of this loop
 26 |             workers.push(Worker::new(id, receiver));
    |                                          ^^^^^^^^ value moved here, in previous iteration of loop
+   |
+note: consider changing this parameter type in method `new` to borrow instead if owning the value isn't necessary
+  --> src/lib.rs:47:33
+   |
+47 |     fn new(id: usize, receiver: mpsc::Receiver<Job>) -> Worker {
+   |        --- in this method       ^^^^^^^^^^^^^^^^^^^ this parameter takes ownership of the value
 
 For more information about this error, try `rustc --explain E0382`.
 error: could not compile `hello` (lib) due to previous error

listings/ch20-web-server/listing-20-22/output.txt

@@ -9,7 +9,7 @@ error[E0507]: cannot move out of `worker.thread` which is behind a mutable refer
    |             move occurs because `worker.thread` has type `JoinHandle<()>`, which does not implement the `Copy` trait
    |
 note: `JoinHandle::<T>::join` takes ownership of the receiver `self`, which moves `worker.thread`
-  --> /rustc/d5c2e9c342b358556da91d61ed4133f6f50fc0c3/library/std/src/thread/mod.rs:1570:17
+  --> /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library/std/src/thread/mod.rs:1570:17
 
 For more information about this error, try `rustc --explain E0507`.
 error: could not compile `hello` (lib) due to previous error

listings/ch20-web-server/no-listing-04-update-worker-definition/output.txt

@@ -7,7 +7,7 @@ error[E0599]: no method named `join` found for enum `Option` in the current scop
    |                           ^^^^ method not found in `Option<JoinHandle<()>>`
    |
 note: the method `join` exists on the type `JoinHandle<()>`
-  --> /rustc/d5c2e9c342b358556da91d61ed4133f6f50fc0c3/library/std/src/thread/mod.rs:1570:5
+  --> /rustc/cc66ad468955717ab92600c770da8c1601a4ff33/library/std/src/thread/mod.rs:1570:5
 help: consider using `Option::expect` to unwrap the `JoinHandle<()>` value, panicking if the value is an `Option::None`
    |
 52 |             worker.thread.expect("REASON").join().unwrap();

rust-toolchain

@@ -1 +1 @@
-1.72
+1.73

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 1.72.1 (released 2023-09-19)
+This version of the text assumes you’re using Rust 1.73.0 (released 2023-10-05)
 or later. See the [“Installation” section of Chapter 1][install]<!-- ignore -->
 to install or update Rust.