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Switch from `derivative` to `derive-where` This is a part of the effort to get rid of `syn 1.*` in compiler's dependencies: #109302 Derivative has not been maintained in nearly 3 years[^1]. It also depends on `syn 1.*`. This PR replaces `derivative` with `derive-where`[^2], a not dead alternative, which uses `syn 2.*`. A couple of `Debug` formats have changed around the skipped fields[^3], but I doubt this is an issue. [^1]: https://github.com/mcarton/rust-derivative/issues/117 [^2]: https://lib.rs/crates/derive-where [^3]: See the changes in `tests/ui`
This directory contains some source code for the Rust project, including:
- The bootstrapping build system
- Various submodules for tools, like cargo, tidy, etc.
For more information on how various parts of the compiler work, see the rustc dev guide.