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In preparing Cargo's blog post for 1.80, I tried to find the documentation for the lint configuration and I couldn't.  The link is only visible from the lint itself, which isn't where I started, and the side bar, which was collapsed for me.

The first place I went was the docs for `unexpected_cfgs` because this is configuration for that lint.  If using lint configuration were a one off, I could see skipping it here.  However, when we discussed this with at least one T-compiler member, there was interest in using this for other lints in the future.  To that end, it seems like we should be exposing this with the lint itself.

The second place I checked was the `check-cfg` documentation.  This now has a call out for the sub-page.
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README.md

This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.

Why Rust?

  • Performance: Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrate with other languages.

  • Reliability: Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.

  • Productivity: Comprehensive documentation, a compiler committed to providing great diagnostics, and advanced tooling including package manager and build tool (Cargo), auto-formatter (rustfmt), linter (Clippy) and editor support (rust-analyzer).

Quick Start

Read "Installation" from The Book.

Installing from Source

If you really want to install from source (though this is not recommended), see INSTALL.md.

Getting Help

See https://www.rust-lang.org/community for a list of chat platforms and forums.

Contributing

See CONTRIBUTING.md.

License

Rust is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses.

See LICENSE-APACHE, LICENSE-MIT, and COPYRIGHT for details.

Trademark

The Rust Foundation owns and protects the Rust and Cargo trademarks and logos (the "Rust Trademarks").

If you want to use these names or brands, please read the media guide.

Third-party logos may be subject to third-party copyrights and trademarks. See Licenses for details.