fehler-macros is used at run time in 103 crates (of which 2 optionally). It is a direct run-time dependency in 1 crate. It's used at build time in 1 crate (). It's used only as a dev dependency in 6 crates.

Depender (with downloads and own rev deps) fehler-macros version
59K 81 fehler ^1.0.0