env_filter is used at run time in 1,873 crates (of which 165 optionally). It is a direct run-time dependency in 9 crates. It's used at build time in 29 crates (of which 2 optionally, ). It's used only as a dev dependency in 879 crates.

Depender (with downloads and own rev deps) env_filter version
5.9M 8061 env_logger ^0.1.0
248K 53 android_logger ^0.1
10K 4 logforth ^0.1.1
3.5K hilog ^0.1.0
410 hitdns ^0.1.0
1 gelf_logger ^0.1.0
krossbar-log-control ^0.1
krossbar-log-viewer ^0.1
krossbar-logger ^0.1