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# Continuous Integration

It is recommended to run Clippy on CI with `-Dwarnings`, so that Clippy lints prevent CI from passing. To enforce errors on warnings on all `cargo` commands not just `cargo clippy`, you can set the env var `RUSTFLAGS="-Dwarnings"`.

We recommend to use Clippy from the same toolchain, that you use for compiling your crate for maximum compatibility. E.g. if your crate is compiled with the `stable` toolchain, you should also use `stable` Clippy.

> Note: New Clippy lints are first added to the `nightly` toolchain. If you want to help with improving Clippy and have CI resources left, please consider adding a `nightly` Clippy check to your CI and report problems like false positives back to us. With that we can fix bugs early, before they can get to stable.

This chapter will give an overview on how to use Clippy on different popular CI providers.