Auto merge of rust-lang#133349 - ehuss:stabilize-2024, r=traviscross,compiler-errors

Stabilize the 2024 edition

This stabilizes the 2024 edition for Rust 1.85, scheduled to be released on February 20, 2025. 🎉

cc tracking issue: rust-lang#117258

There is a fair amount of follow-up work after this that I am working on (various docs, cargo, rustfmt, etc.), and this is will unblock those other changes.

Author: bors

compiler/rustc_span/src/edition.rs

@@ -33,7 +33,7 @@ pub const EDITION_NAME_LIST: &str = "2015|2018|2021|2024";
 
 pub const DEFAULT_EDITION: Edition = Edition::Edition2015;
 
-pub const LATEST_STABLE_EDITION: Edition = Edition::Edition2021;
+pub const LATEST_STABLE_EDITION: Edition = Edition::Edition2024;
 
 impl fmt::Display for Edition {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
@@ -62,7 +62,7 @@ impl Edition {
             Edition::Edition2015 => true,
             Edition::Edition2018 => true,
             Edition::Edition2021 => true,
-            Edition::Edition2024 => false,
+            Edition::Edition2024 => true,
         }
     }
 

src/doc/rustc/src/command-line-arguments.md

@@ -179,7 +179,7 @@ This informs `rustc` of the name of your crate.
 <a id="option-edition"></a>
 ## `--edition`: specify the edition to use
 
-This flag takes a value of `2015`, `2018` or `2021`. The default is `2015`. More
+This flag takes a value of `2015`, `2018`,`2021`, or `2024`. The default is `2015`. More
 information about editions may be found in the [edition guide].
 
 [edition guide]: ../edition-guide/introduction.html