num_threads is used at run time in 1,879 crates (of which 1,879 optionally). It is a direct run-time dependency in 2 crates. It's used at build time in 56 crates (of which 56 optionally, 0 directly). It's used only as a dev dependency in 120 crates.
|Depender (with downloads and own rev deps)||num_threads version|