It's used only as a dev dependency in 6 crates.

Depender (with downloads and own rev deps) quickcheck_async version
220 forest-filecoin dev ^0.1.1
1 banyan dev ^0.1.1
2 navajo dev ^0.1
blip dev ^0.1.1
file-rotation dev ^0.1.1
3 ax_banyan dev ^0.1.1