RustFlags is used at run time in 9 crates (of which 1 optionally). It is a direct run-time dependency in 3 crates. It's used at build time in 4 crates (2 directly).

Depender (with downloads and own rev deps) RustFlags version
73K 3 cargo-zigbuild ^0.1.6
1.9K 2 mountpoint-s3-crt-sys build ^0.1.1
cargo-green ^0, >=0.1
rustcbuildx ^0, >=0.1
rsonpath build ^0.1.4