fast_log is used at run time in 7 crates (of which 1 optionally). It's used only as a dev dependency in 3 crates.

Depender (with downloads and own rev deps) fast_log version
600 rskit ^1.7.3
ddd_dapr ^1.5.47
consul-rs ^1.3.23
quic-dns ^1.6.16
rbatis-adapter ^1.5.23
toothpaste ~1.3
chimes-rust optional ^1.3
2.0K fltkrs-richdisplay dev ^1
1.0K 6 spdlog-rs dev =1.7.4
1 mogwai-dom dev ^1.5.47