It's used at build time in 10 crates.

Depender (with downloads and own rev deps) vergen-git2 version
13K wallust build ^1.0
800 rainfrog build ^1.0.0
360 openapi-tui build ^1.0.0
280 gerust build ^1.0.2
220 termscp build ^1
120 cres build ^1.0
av1an build ^1.0.0
fibertools-rs build ^1.0.2
arcam build ^1.0.0
rsonpath build ^1.0.1