register-count is used at run time in 8 crates (of which 2 optionally). It is a direct run-time dependency in 6 crates.

Depender (with downloads and own rev deps) register-count version
tuic-client ^0.1.0
tuic-server ^0.1.0
asport-server ^0.1.0
asport-client ^0.1.0
3 tuic optional ^0.1.0
3 asport optional ^0.1.0