Leak is used at run time in 15 crates (of which 13 optionally). It is a direct run-time dependency in 1 crate. It's used only as a dev dependency in 2 crates (of which 1 directly).

Depender (with downloads and own rev deps) Leak version
1.6K 1 leaky-cow ^0.1.1
maildir-pack dev ^0.1.2