socketpair is used at run time in 27 crates (of which 5 optionally). It is a direct run-time dependency in 5 crates. It's used only as a dev dependency in 2 crates.

Depender (with downloads and own rev deps) socketpair version
491K 12 system-interface optional ^0.19.0
9.2K 6 rustdds ^0.19
gateryx ^0.19.8
470 7 duplex optional ^0.19.0
3 io-streams optional ^0.19.0
367K 13 selinux dev ^0.19
1 arti-rpc-client-core dev ^0.19