closure is used at run time in 19 crates. It is a direct run-time dependency in 5 crates. It's used only as a dev dependency in 3 crates (of which 2 directly).

Depender (with downloads and own rev deps) closure version
110 geph4-exit ^0.3.0
100 10 ambient_ui_native ^0.3.0
ambient_world_audio ^0.3.0
rdupes ^0.3
curseforge_webview ^0.3.0
350 4 fermi dev ^0.3.0
regmock-rs dev ^0.3.0