Rustix is a [Bytecode Alliance] project. It follows the Bytecode Alliance's [Code of Conduct] and [Organizational Code of Conduct].
To keep compile times low, most features in rustix's API are behind cargo features. A special feature, all-apis enables all APIs, which is useful for testing.
cargo test --features=all-apis
And, rustix has two backends, linux_raw and libc, and only one is used in any given build. To test with the libc backend explicitly, additionally enable the use-libc feature:
cargo test --features=all-apis,use-libc
Beyond that, rustix‘s CI tests many targets and configurations. Asking for help is always welcome, and it’s especially encouraged when the issue is getting all the cfgs lined up to get everything compiling on all the configurations on CI.