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Merge pull request #288 from ehuss/edition-2024
Set up scaffolding for 2024
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‎src/SUMMARY.md

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- [Warnings promoted to errors](rust-2021/warnings-promoted-to-error.md)
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- [Or patterns in macro-rules](rust-2021/or-patterns-macro-rules.md)
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- [C-string literals](rust-2021/c-string-literals.md)
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## Rust 2024
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- [Rust 2024 🚧](rust-2024/index.md)
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- [`unsafe_op_in_unsafe_fn` warning](rust-2024/unsafe-op-in-unsafe-fn.md)
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- [RPIT lifetime capture](rust-2024/rpit-lifetime-capture.md)
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- [Disallow references to `static mut`](rust-2024/static-mut-reference.md)
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- [Public/private dependencies](rust-2024/public-private-dependencies.md)
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- [Cargo: Remove implicit features](rust-2024/cargo-remove-implicit-features.md)
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- [Rustfmt: Combine all delimited exprs as last argument](rust-2024/rustfmt-overflow-delimited-expr.md)

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

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Congrats! Your code is now valid in both Rust 2015 and Rust 2018!
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## Migrating to an unstable edition
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After an edition is released, there is roughly a three year window before the next edition.
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During that window, new features may be added to the next edition, which will only be available on the [nightly channel].
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If you want to help test those new features before they are stabilized, you can use the nightly channel to try them out.
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The steps are roughly similar to the stable channel:
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1. Install the most recent nightly: `rustup update nightly`.
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2. Run `cargo +nightly fix --edition`.
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3. Edit `Cargo.toml` and place `cargo-features = ["edition2024"]` at the top (above `[package]`), and change the edition field to say `edition = "2024"`.
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4. Run `cargo +nightly check` to verify it now works in the new edition.
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> **⚠ Caution**: Features implemented in the next edition may not have automatic migrations implemented with `cargo fix`, and the features themselves may not be finished.
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> When possible, this guide should contain information about which features are implemented
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> on nightly along with more information about their status.
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> A few months before the edition is stabilized, all of the new features should be fully implemented, and the [Rust Blog] will announce a call for testing.
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[`cargo fix`]: ../../cargo/commands/cargo-fix.html
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[`cargo test`]: ../../cargo/commands/cargo-test.html
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[Advanced migration strategies]: advanced-migrations.md
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[nightly channel]: ../../book/appendix-07-nightly-rust.html
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[Rust Blog]: https://blog.rust-lang.org/

‎src/rust-2024/cargo-remove-implicit-features.md

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# Cargo: Remove implicit features
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🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
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## Summary
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## Details
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## Migration

‎src/rust-2024/index.md

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# Rust 2024
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🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
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| Info | |
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| --- | --- |
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| RFC | [#3501](https://rust-lang.github.io/rfcs/3501-edition-2024.html) |
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| Release version | 1.82.0 (anticipated) |
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The Rust 2024 Edition is currently slated for release in Rust 1.82.0.
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Rust 1.82.0 will be in beta for six weeks,
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after which it is released as stable on October 17th.
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However, note that Rust is a project run by volunteers.
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We prioritize the personal well-being of everyone working on Rust
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over any deadlines and expectations we might have set.
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This could mean delaying the edition a version if necessary,
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or dropping a feature that turns out to be too difficult or stressful to finish in time.
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That said, we are on schedule and many of the difficult problems are already tackled,
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thanks to all the people contributing to Rust 2024! 💛

‎src/rust-2024/public-private-dependencies.md

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# Public/private dependencies
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🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
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## Summary
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## Details
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## Migration

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

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# RPIT lifetime capture
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🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
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## Summary
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## Details
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## Migration

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

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# Rustfmt: Combine all delimited exprs as last argument
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🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
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## Summary
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## Details
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## Migration

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

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# Disallow references to static mut
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🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
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## Summary
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## Details
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## Migration

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

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# unsafe_op_in_unsafe_fn warning
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🚧 The 2024 Edition has not yet been released and hence this section is still "under construction".
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## Summary
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## Details
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## Migration

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