feat: Stabilize Edition 2024

Author: epage

src/cargo/core/features.rs

@@ -507,7 +507,7 @@ features! {
     (stable, workspace_inheritance, "1.64", "reference/unstable.html#workspace-inheritance"),
 
     /// Support for 2024 edition.
-    (unstable, edition2024, "", "reference/unstable.html#edition-2024"),
+    (stable, edition2024, "1.85", "reference/unstable.html#edition-2024"),
 
     /// Allow setting trim-paths in a profile to control the sanitisation of file paths in build outputs.
     (unstable, trim_paths, "", "reference/unstable.html#profile-trim-paths-option"),

src/cargo/util/toml/mod.rs

@@ -1217,9 +1217,7 @@ pub fn to_real_manifest(
     //     features.require(Feature::edition20xx())?;
     // }
     // ```
-    if edition == Edition::Edition2024 {
-        features.require(Feature::edition2024())?;
-    } else if !edition.is_stable() {
+    if !edition.is_stable() {
         // Guard in case someone forgets to add .require()
         return Err(util::errors::internal(format!(
             "edition {} should be gated",

src/doc/src/reference/resolver.md

@@ -507,7 +507,7 @@ resolver = "2"
 - `"2"` ([`edition = "2021"`](manifest.md#the-edition-field) default): Introduces changes in [feature
 unification](#features). See the [features chapter][features-2] for more
 details.
-- `"3"` (requires Rust 1.84+): Change the default for [`resolver.incompatible-rust-versions`] from `allow` to `fallback`
+- `"3"` ([`edition = "2024"`](manifest.md#the-edition-field) default, requires Rust 1.84+): Change the default for [`resolver.incompatible-rust-versions`] from `allow` to `fallback`
 
 The resolver is a global option that affects the entire workspace. The
 `resolver` version in dependencies is ignored, only the value in the top-level

src/doc/src/reference/unstable.md

@@ -100,7 +100,6 @@ Each new feature described below should explain how to use it.
     * [codegen-backend](#codegen-backend) --- Select the codegen backend used by rustc.
     * [per-package-target](#per-package-target) --- Sets the `--target` to use for each individual package.
     * [artifact dependencies](#artifact-dependencies) --- Allow build artifacts to be included into other build artifacts and build them for different targets.
-    * [Edition 2024](#edition-2024) — Adds support for the 2024 Edition.
     * [Profile `trim-paths` option](#profile-trim-paths-option) --- Control the sanitization of file paths in build outputs.
     * [`[lints.cargo]`](#lintscargo) --- Allows configuring lints for Cargo.
     * [path bases](#path-bases) --- Named base directories for path dependencies.
@@ -1363,32 +1362,6 @@ Differences between `cargo run --manifest-path <path>` and `cargo <path>`
 
 ### Documentation Updates
 
-## Edition 2024
-* Tracking Issue: (none created yet)
-* RFC: [rust-lang/rfcs#3501](https://github.com/rust-lang/rfcs/pull/3501)
-
-Support for the 2024 [edition] can be enabled by adding the `edition2024`
-unstable feature to the top of `Cargo.toml`:
-
-```toml
-cargo-features = ["edition2024"]
-
-[package]
-name = "my-package"
-version = "0.1.0"
-edition = "2024"
-```
-
-If you want to transition an existing project from a previous edition, then
-`cargo fix --edition` can be used on the nightly channel. After running `cargo
-fix`, you can switch the edition to 2024 as illustrated above.
-
-This feature is very unstable, and is only intended for early testing and
-experimentation. Future nightly releases may introduce changes for the 2024
-edition that may break your build.
-
-[edition]: ../../edition-guide/index.html
-
 ## Profile `trim-paths` option
 
 * Tracking Issue: [rust-lang/cargo#12137](https://github.com/rust-lang/cargo/issues/12137)
@@ -2013,3 +1986,10 @@ default behavior.
 
 See the [build script documentation](build-scripts.md#rustc-check-cfg) for information
 about specifying custom cfgs.
+
+## Edition 2024
+
+The 2024 edition has been stabilized in the 1.85 release.
+See the [`edition` field](manifest.md#the-edition-field) for more information on setting the edition.
+See [`cargo fix --edition`](../commands/cargo-fix.md) and [The Edition Guide](../../edition-guide/index.html) for more information on migrating existing projects.
+

tests/testsuite/bad_config.rs

@@ -831,14 +831,12 @@ fn dev_dependencies2() {
 "#]]).run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn dev_dependencies2_2024() {
     let p = project()
         .file(
             "Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "foo"
                 version = "0.1.0"
@@ -861,7 +859,6 @@ fn dev_dependencies2_2024() {
         .file("a/src/lib.rs", "")
         .build();
     p.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
@@ -949,14 +946,12 @@ fn build_dependencies2() {
 "#]]).run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn build_dependencies2_2024() {
     let p = project()
         .file(
             "Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "foo"
                 version = "0.1.0"
@@ -979,7 +974,6 @@ fn build_dependencies2_2024() {
         .file("a/src/lib.rs", "")
         .build();
     p.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
@@ -1060,14 +1054,12 @@ fn lib_crate_type2() {
         .run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn lib_crate_type2_2024() {
     let p = project()
         .file(
             "Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "foo"
                 version = "0.5.0"
@@ -1082,7 +1074,6 @@ fn lib_crate_type2_2024() {
         .file("src/lib.rs", "pub fn foo() {}")
         .build();
     p.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
@@ -1154,14 +1145,12 @@ fn bin_crate_type2() {
         .run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn bin_crate_type2_2024() {
     let p = project()
         .file(
             "Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "foo"
                 version = "0.5.0"
@@ -1177,7 +1166,6 @@ fn bin_crate_type2_2024() {
         .file("src/main.rs", "fn main() {}")
         .build();
     p.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
@@ -1268,14 +1256,12 @@ fn examples_crate_type2() {
         .run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn examples_crate_type2_2024() {
     let p = project()
         .file(
             "Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "foo"
                 version = "0.5.0"
@@ -1307,7 +1293,6 @@ fn examples_crate_type2_2024() {
         )
         .build();
     p.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
@@ -1411,16 +1396,14 @@ fn cargo_platform_build_dependencies2() {
         .run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn cargo_platform_build_dependencies2_2024() {
     let host = rustc_host();
     let p = project()
         .file(
             "Cargo.toml",
             &format!(
                 r#"
-                    cargo-features = ["edition2024"]
-
                     [package]
                     name = "foo"
                     version = "0.5.0"
@@ -1444,7 +1427,6 @@ fn cargo_platform_build_dependencies2_2024() {
         .build();
 
     p.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
@@ -1543,16 +1525,14 @@ fn cargo_platform_dev_dependencies2() {
         .run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn cargo_platform_dev_dependencies2_2024() {
     let host = rustc_host();
     let p = project()
         .file(
             "Cargo.toml",
             &format!(
                 r#"
-                    cargo-features = ["edition2024"]
-
                     [package]
                     name = "foo"
                     version = "0.5.0"
@@ -1575,7 +1555,6 @@ fn cargo_platform_dev_dependencies2_2024() {
         .build();
 
     p.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
@@ -1675,14 +1654,12 @@ fn default_features2() {
 "#]]).run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn default_features2_2024() {
     let p = project()
         .file(
             "Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "foo"
                 version = "0.1.0"
@@ -1712,7 +1689,6 @@ fn default_features2_2024() {
         .build();
 
     p.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
@@ -1852,7 +1828,7 @@ fn workspace_default_features2() {
         .run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn workspace_default_features2_2024() {
     let p = project()
         .file(
@@ -1869,8 +1845,6 @@ fn workspace_default_features2_2024() {
         .file(
             "workspace_only/Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "workspace_only"
                 version = "0.1.0"
@@ -1885,8 +1859,6 @@ fn workspace_default_features2_2024() {
         .file(
             "dep_workspace_only/Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "dep_workspace_only"
                 version = "0.1.0"
@@ -1898,8 +1870,6 @@ fn workspace_default_features2_2024() {
         .file(
             "package_only/Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "package_only"
                 version = "0.1.0"
@@ -1914,8 +1884,6 @@ fn workspace_default_features2_2024() {
         .file(
             "dep_package_only/Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "dep_package_only"
                 version = "0.1.0"
@@ -1927,7 +1895,6 @@ fn workspace_default_features2_2024() {
         .build();
 
     p.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to load manifest for workspace member `[ROOT]/foo/workspace_only`
@@ -1972,14 +1939,12 @@ fn lib_proc_macro2() {
         .run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn lib_proc_macro2_2024() {
     let foo = project()
         .file(
             "Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "foo"
                 version = "0.1.0"
@@ -1992,7 +1957,6 @@ fn lib_proc_macro2_2024() {
         .build();
 
     foo.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
@@ -2063,14 +2027,12 @@ fn bin_proc_macro2() {
         .run();
 }
 
-#[cargo_test(nightly, reason = "edition2024 is not stable")]
+#[cargo_test]
 fn bin_proc_macro2_2024() {
     let foo = project()
         .file(
             "Cargo.toml",
             r#"
-                cargo-features = ["edition2024"]
-
                 [package]
                 name = "foo"
                 version = "0.5.0"
@@ -2087,7 +2049,6 @@ fn bin_proc_macro2_2024() {
         .build();
 
     foo.cargo("check")
-        .masquerade_as_nightly_cargo(&["edition2024"])
         .with_status(101)
         .with_stderr_data(str![[r#"
 [ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`