Merge pull request #338 from ehuss/stabilize-2024

Update for 2024 stabilization

src/SUMMARY.md

@@ -38,7 +38,7 @@
 
 ## Rust 2024
 
-- [Rust 2024 🚧](rust-2024/index.md)
+- [Rust 2024](rust-2024/index.md)
   - [Language](rust-2024/language.md)
     - [RPIT lifetime capture rules](rust-2024/rpit-lifetime-capture.md)
     - [`if let` temporary scope](rust-2024/temporary-if-let-scope.md)

src/editions/creating-a-new-project.md

@@ -11,13 +11,13 @@ $ cat foo/Cargo.toml
 [package]
 name = "foo"
 version = "0.1.0"
-edition = "2021"
+edition = "2024"
 
 [dependencies]
 ```
 
-That `edition = "2021"` setting configures your package to be built using the
-Rust 2021 edition. No further configuration needed!
+That `edition = "2024"` setting configures your package to be built using the
+Rust 2024 edition. No further configuration needed!
 
 You can use the `--edition <YEAR>` option of `cargo new` to create the project
 using some specific edition. For example, creating a new project to use the

src/editions/transitioning-an-existing-project-to-a-new-edition.md

@@ -5,7 +5,7 @@ It will update your source code so that it is compatible with the next edition.
 Briefly, the steps to update to the next edition are:
 
 1. Run `cargo fix --edition`
-2. Edit `Cargo.toml` and set the `edition` field to the next edition, for example `edition = "2021"`
+2. Edit `Cargo.toml` and set the `edition` field to the next edition, for example `edition = "2024"`
 3. Run `cargo build` or `cargo test` to verify the fixes worked.
 
 The following sections dig into the details of these steps, and some of the issues you may encounter along the way.
@@ -93,7 +93,7 @@ The steps are roughly similar to the stable channel:
 
 1. Install the most recent nightly: `rustup update nightly`.
 2. Run `cargo +nightly fix --edition`.
-3. Edit `Cargo.toml` and place `cargo-features = ["edition2024"]` at the top (above `[package]`), and change the edition field to say `edition = "2024"`.
+3. Edit `Cargo.toml` and place `cargo-features = ["edition20xx"]` at the top (above `[package]`), and change the edition field to say `edition = "20xx"` where `20xx` is the edition you are upgrading to.
 4. Run `cargo +nightly check` to verify it now works in the new edition.
 
 > **⚠ Caution**: Features implemented in the next edition may not have automatic migrations implemented with `cargo fix`, and the features themselves may not be finished.

src/rust-2024/cargo-inherited-default-features.md

@@ -1,7 +1,5 @@
 # Cargo: Reject unused inherited default-features
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
 ## Summary
 
 - `default-features = false` is no longer allowed in an inherited workspace dependency if the workspace dependency specifies `default-features = true` (or does not specify `default-features`).

src/rust-2024/cargo-resolver.md

@@ -1,7 +1,5 @@
 # Cargo: Rust-version aware resolver
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
 ## Summary
 
 - `edition = "2024"` implies `resolver = "3"` in `Cargo.toml` which enables a Rust-version aware dependency resolver.

src/rust-2024/cargo-table-key-names.md

@@ -1,7 +1,5 @@
 # Cargo: Table and key name consistency
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
 ## Summary
 
 - Several table and key names in `Cargo.toml` have been removed where there were previously two ways to specify the same thing.

src/rust-2024/gen-keyword.md

@@ -1,8 +1,5 @@
 # `gen` keyword
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/123904>.
-
 ## Summary
 
 - `gen` is a [reserved keyword].

src/rust-2024/index.md

@@ -1,30 +1,6 @@
 # Rust 2024
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
 | Info | |
 | --- | --- |
 | RFC | [#3501](https://rust-lang.github.io/rfcs/3501-edition-2024.html) |
-| Release version | 1.85.0 (anticipated) |
-
-The Rust 2024 Edition is scheduled to be frozen on 2024-10-17, stabilized on nightly on 2024-11-28, and released as stable with Rust 1.85.0 on 2025-02-20.  In more detail, the currently anticipated release schedule is:
-
-| Date       | Version       | Edition stage                  |
-|------------|---------------|--------------------------------|
-| 2024-10-11 | Branch  v1.83 | Go / no go on all items        |
-| 2024-10-17 | Release v1.82 | Rust 2024 nightly beta         |
-| 2024-11-22 | Branch  v1.84 | Prepare to stabilize...        |
-| 2024-11-28 | Release v1.83 | Stabilize Rust 2024 on master  |
-| 2025-01-03 | Branch  v1.85 | Cut Rust 2024 to beta          |
-| 2025-01-09 | Release v1.84 | Announce Rust 2024 is pending! |
-| 2025-02-20 | Release v1.85 | Release Rust 2024              |
-
-Our motivating priorities for this edition are to:
-
-- Make *this* edition a success.
-- Do so without requiring heroics from anyone.
-    - ...or stressing anyone or everyone out.
-
-Consequently, it's possible that things could change if needed so as to better adhere to those guiding priorities.  This is a project run by volunteers.
-
-However, at the moment, **the edition is on track**.
+| Release version | 1.85.0 |

src/rust-2024/intoiterator-box-slice.md

@@ -1,8 +1,5 @@
 # Add `IntoIterator` for `Box<[T]>`
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/123759>.
-
 ## Summary
 
 - Boxed slices implement [`IntoIterator`] in *all* editions.
@@ -39,8 +36,7 @@ This example is allowed on all editions because previously this was an error sin
 
 However, this would normally be a breaking change because existing code that manually called `.into_iter()` on a boxed slice would change from having an iterator over references to an iterator over values. To resolve this problem, method calls of `.into_iter()` on boxed slices have edition-dependent behavior. In editions before 2024, it continues to return an iterator over references, and starting in Edition 2024 it returns an iterator over values.
 
-<!-- TODO: edition2024 -->
-```rust
+```rust,edition2024
 // Example of changed behavior in Edition 2024
 let my_boxed_slice: Box<[u32]> = vec![1, 2, 3].into_boxed_slice();
 // Example of old code that still manually calls .into_iter()

src/rust-2024/macro-fragment-specifiers.md

@@ -1,8 +1,5 @@
 # Macro Fragment Specifiers
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/123742>.
-
 ## Summary
 
 - The `expr` [fragment specifier] now also supports `const` and `_` expressions.

src/rust-2024/match-ergonomics.md

@@ -1,8 +1,5 @@
 # Match ergonomics
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/131414>.
-
 **This is a placeholder, docs coming soon!**
 
 ## Summary

src/rust-2024/missing-macro-fragment-specifiers.md

@@ -1,8 +1,5 @@
 # Missing macro fragment specifiers
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/128143>.
-
 ## Summary
 
 - The [`missing_fragment_specifier`] lint is now a hard error.

src/rust-2024/never-type-fallback.md

@@ -1,7 +1,5 @@
 # Never type fallback change
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
 ## Summary
 
 - Never type (`!`) to any type ("never-to-any") coercions fall back to never type (`!`) rather than to unit type (`()`).
@@ -85,8 +83,7 @@ You might think that, in this example, type `T` can't be inferred.  However, due
 
 To fix the issue you need to specify the `T` type explicitly:
 
-<!-- TODO: edition2024 -->
-```rust
+```rust,edition2024
 # #![deny(dependency_on_unit_never_type_fallback)]
 # fn outer<T>(x: T) -> Result<T, ()> {
 # fn f<T: Default>() -> Result<T, ()> {
@@ -115,8 +112,7 @@ run(|| panic!());
 
 Previously `!` from the `panic!` coerced to `()` which implements `Unit`.  However now the `!` is kept as `!` so this code fails because `!` doesn't implement `Unit`.  To fix this you can specify the return type of the closure:
 
-<!-- TODO: edition2024 -->
-```rust,should_panic
+```rust,edition2024,should_panic
 # #![deny(dependency_on_unit_never_type_fallback)]
 # trait Unit {}
 # impl Unit for () {}
@@ -142,8 +138,7 @@ Previously `()` was inferred as the return type of `Default::default()` because
 
 Again, this can be fixed by specifying the type explicitly:
 
-<!-- TODO: edition2024 -->
-```rust
+```rust,edition2024
 # #![deny(dependency_on_unit_never_type_fallback)]
 () = if true {
     Default::default()

src/rust-2024/newly-unsafe-functions.md

@@ -1,8 +1,5 @@
 # Unsafe functions
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/124866>.
-
 ## Summary
 
 - The following functions are now marked [`unsafe`]:

src/rust-2024/prelude.md

@@ -1,8 +1,5 @@
 # Additions to the prelude
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/121042>.
-
 ## Summary
 
 - The [`Future`] and [`IntoFuture`] traits are now part of the prelude.

src/rust-2024/reserved-syntax.md

@@ -1,8 +1,5 @@
 # Reserved syntax
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/123735>.
-
 ## Summary
 
 - Unprefixed guarded strings of the form `#"foo"#` are reserved for future use.

src/rust-2024/rpit-lifetime-capture.md

@@ -1,7 +1,5 @@
 # RPIT lifetime capture rules
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
 This chapter describes changes related to the **Lifetime Capture Rules 2024** introduced in [RFC 3498], including how to use opaque type *precise capturing* (introduced in [RFC 3617]) to migrate your code.
 
 [RFC 3498]: https://github.com/rust-lang/rfcs/pull/3498
@@ -237,8 +235,7 @@ fn f<'a, T>(x: &'a (), y: T) -> impl Sized + use<'a, T> {
 
 In Rust 2024, the `use<..>` bound can often be omitted entirely, and the above can be written simply as:
 
-<!-- TODO: edition2024 -->
-```rust
+```rust,edition2024
 # #![feature(lifetime_capture_rules_2024)]
 fn f<'a, T>(x: &'a (), y: T) -> impl Sized {
     (x, y)
@@ -284,8 +281,7 @@ fn f<T>(x: &(), y: T) -> impl Sized + use<'_, T> {
 
 In Rust 2024, the `use<..>` bound can often be omitted entirely, and the above can be written simply as:
 
-<!-- TODO: edition2024 -->
-```rust
+```rust,edition2024
 # #![feature(precise_capturing)]
 # #![feature(lifetime_capture_rules_2024)]
 fn f<T>(x: &(), y: T) -> impl Sized {

src/rust-2024/rustdoc-doctests.md

@@ -1,8 +1,5 @@
 # Rustdoc combined tests
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/124853>.
-
 ## Summary
 
 - [Doctests] are now combined into a single binary which should result in a significant performance improvement.

src/rust-2024/rustdoc-nested-includes.md

@@ -1,8 +1,5 @@
 # Rustdoc nested `include!` change
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/132230>.
-
 ## Summary
 
 When a doctest is included with `include_str!`, if that doctest itself also uses `include!`, `include_str!`, or `include_bytes!`, the path is resolved relative to the Markdown file, rather than to the Rust source file.

src/rust-2024/rustfmt-overflow-delimited-expr.md

@@ -1,7 +1,5 @@
 # Rustfmt: Combine all delimited exprs as last argument
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
 This feature is not yet implemented.
 More information may be found in <https://github.com/rust-lang/rust/pull/114764>.
 

src/rust-2024/rustfmt-raw-identifier-sorting.md

@@ -1,9 +1,5 @@
 # Rustfmt: Raw identifier sorting
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/124764>.
-
 ## Summary
 
 `rustfmt` now properly sorts [raw identifiers].

src/rust-2024/rustfmt-style-edition.md

@@ -1,9 +1,5 @@
 # Rustfmt: Style edition
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/123799>.
-
 ## Summary
 
 User can now control which style edition to use with `rustfmt`. 

src/rust-2024/rustfmt-version-sorting.md

@@ -1,9 +1,5 @@
 # Rustfmt: Version sorting
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
-More information may be found in the tracking issues at <https://github.com/rust-lang/rust/issues/123800> and <https://github.com/rust-lang/rust/issues/123802>.
-
 ## Summary
 
 `rustfmt` utilizes a new sorting algorithm.

src/rust-2024/static-mut-references.md

@@ -1,8 +1,5 @@
 # Disallow references to static mut
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/123758>.
-
 ## Summary
 
 - The [`static_mut_refs`] lint level is now `deny` by default.

src/rust-2024/temporary-if-let-scope.md

@@ -1,8 +1,5 @@
 # `if let` temporary scope
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/124085>.
-
 ## Summary
 
 - In an `if let $pat = $expr { .. } else { .. }` expression, the temporary values generated from evaluating `$expr` will be dropped before the program enters the `else` branch instead of after.
@@ -34,8 +31,7 @@ In this example, the temporary read lock generated by the call to `value.read()`
 
 The 2024 Edition shortens the lifetime of the temporaries to the point where the then-block is completely evaluated or the program control enters the `else` block.
 
-<!-- TODO: edition2024 -->
-```rust
+```rust,edition2024
 // Starting with 2024
 # use std::sync::RwLock;
 

src/rust-2024/temporary-tail-expr-scope.md

@@ -1,8 +1,5 @@
 # Tail expression temporary scope
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/123739>.
-
 ## Summary
 
 - Temporary values generated in evaluation of the tail expression of a [function] or closure body, or a [block] are now dropped before local variables.

src/rust-2024/unsafe-attributes.md

@@ -1,8 +1,5 @@
 # Unsafe attributes
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/123757>.
-
 ## Summary
 
 - The following attributes must now be marked as `unsafe`:
@@ -49,8 +46,7 @@ fn foo() -> usize { 1 }
 
 In the 2024 Edition, it is now required to mark these attributes as unsafe to emphasize that it is required to ensure that the symbol is defined correctly:
 
-<!-- TODO: edition2024 -->
-```rust
+```rust,edition2024
 // SAFETY: There should only be a single definition of the loop symbol.
 #[unsafe(export_name="loop")]
 fn arduino_loop() {

src/rust-2024/unsafe-extern.md

@@ -1,8 +1,5 @@
 # Unsafe `extern` blocks
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-More information may be found in the tracking issue at <https://github.com/rust-lang/rust/issues/123743>.
-
 ## Summary
 
 - [`extern` blocks] must now be marked with the `unsafe` keyword.

src/rust-2024/unsafe-op-in-unsafe-fn.md

@@ -1,7 +1,5 @@
 # unsafe_op_in_unsafe_fn warning
 
-🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
-
 ## Summary
 
 - The [`unsafe_op_in_unsafe_fn`] lint now warns by default.