bpf-sys is used at run time in 3 crates (of which 2 optionally). It's used at build time in 2 crates. It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) bpf-sys version
650 2 redbpf ^2.3.0
100 1 redbpf-probes build ^2.3.0
rhdxmr-publish-test2 build ^2.0.1
200 1 cargo-bpf optional ^2.3.0
1 rhdxmr-publish-test optional ^2.3.0