On the recordRead 9 Oct 202621 facts
Clippy
On the record
- Automatic fixes
- `cargo clippy --fix` can automatically apply some lint suggestions and implies `--all-targets`.doc.rust-lang.org · read 9 Oct 2026
- CI use
- Clippy's documentation recommends running it in CI with warnings treated as errors.doc.rust-lang.org · read 9 Oct 2026
- Configurable levels
- Users can change lint levels by category, and the default lint group includes correctness, suspicious, style, complexity, and performance lints.doc.rust-lang.org · read 8 Oct 2026
- Configuration
- Lint levels can be changed on the command line or in source code, and Clippy supports configuration through `clippy.toml`.doc.rust-lang.org · read 9 Oct 2026
- Continuous integration
- The documentation recommends running Clippy in CI with warnings treated as errors and using Clippy from the same toolchain as the project compiler.doc.rust-lang.org · read 8 Oct 2026
- False positives
- The pedantic lint group is described as strict and as allowing occasional false positives.doc.rust-lang.org · read 9 Oct 2026
- GitHub Actions
- The documentation says GitHub-hosted runners with the latest stable Rust have Clippy preinstalled.doc.rust-lang.org · read 9 Oct 2026
- How to run
- Clippy runs as the `cargo clippy` subcommand or directly through `clippy-driver`.doc.rust-lang.org · read 9 Oct 2026
- Installation
- Clippy is usually included with rustup toolchains and can be added with `rustup component add clippy`; the minimal profile does not install it automatically.doc.rust-lang.org · read 9 Oct 2026
- License
- The Clippy repository is licensed under either Apache License 2.0 or MIT, at the licensee's option.github.com · read 9 Oct 2026
- Lint categories
- Lint groups include correctness, suspicious, style, complexity, performance, pedantic, restriction, nursery, and Cargo.doc.rust-lang.org · read 9 Oct 2026
- Lint configuration
- Some lint settings can be configured in clippy.toml or .clippy.toml, and the documentation says this configuration file is unstable and may be deprecated.doc.rust-lang.org · read 8 Oct 2026
- Lint count
- The lint list contains 837 lints.rust-lang.github.io · read 9 Oct 2026
- Notable limitation
- The documentation warns that restriction lints may flag reasonable code, lack an alternative suggestion, or contradict other lints, and advises against enabling the whole category.doc.rust-lang.org · read 9 Oct 2026
- Purpose
- Clippy is a collection of lints that catches common mistakes and improves Rust code.doc.rust-lang.org · read 9 Oct 2026
- Restriction limits
- The documentation advises against enabling the entire restriction lint category because its lints may flag reasonable code, lack alternatives, or conflict with other lints.doc.rust-lang.org · read 8 Oct 2026
- Rust version support
- Projects can configure a minimum supported Rust version so Clippy can adjust or suppress lints involving newer language features.doc.rust-lang.org · read 8 Oct 2026
- Suggestion confidence
- Clippy suggestions carry applicability information because some suggestions may be incorrect and need human supervision.doc.rust-lang.org · read 8 Oct 2026
