mcom is used at run time in 5 crates (of which 5 optionally). It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) mcom version
1 thindx-xaudio2-sys ^0.1.3
thindx-xaudio2 ^0.1.3
1 ialloc ^0.1
forecastle ^0.1
thindx ^0.1.1