fontspector-checkhelper is used at run time in 7 crates. It is a direct run-time dependency in 3 crates.

Depender (with downloads and own rev deps) fontspector-checkhelper version
6 fontspector-checkapi ^1.0.0
1 fontspector-profile-universal ^1.0.0
1 fontspector-profile-opentype ^1.0.0