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Latest rust-analyzer no longer works with the toolchain in this repo #5760

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valadaptive opened this issue Mar 4, 2025 · 1 comment · May be fixed by #5761
Open

Latest rust-analyzer no longer works with the toolchain in this repo #5760

valadaptive opened this issue Mar 4, 2025 · 1 comment · May be fixed by #5761
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@valadaptive
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egui currently uses Rust 1.81 for everything (specified in rust-toolchain), but the latest version of rust-analyzer no longer supports it.

One solution would be to just bump the Rust version to 1.82, which might result in some MSRV increases sneaking in. We could also specify RUSTUP_TOOLCHAIN=stable for rust-analyzer specifically (via rust-analyzer.cargo.extraEnv), but if anything goes wrong with either toolchain, it might be hard to debug considering there would be a "secret extra toolchain" only set in the VS Code config.
@valadaptive valadaptive added the bug Something is broken label Mar 4, 2025
@valadaptive valadaptive linked a pull request Mar 4, 2025 that will close this issue
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@Veykril
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Veykril commented Mar 4, 2025

Specifying the rust-analyzer component in the toolchain file should also make vscode pick up the server from that instead (i dont think we have that documented yet)

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Use RUSTUP_TOOLCHAIN=stable for rust-analyzer valadaptive/egui
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@Veykril @valadaptive