parse_cfg is used at run time in 1 crate. It's used at build time in 5 crates (of which 4 optionally, 1 directly).

Number of dependers parse_cfg version Downloads/month
5 4.1.1 650
1 2.0.0 2
Depender (with downloads and own rev deps) parse_cfg version
750 1 asio-sys build ^4.1.1
110 cargoman ^2.0.0