Miller-Rabin is used at run time in 4 crates (of which 3 optionally). It is a direct run-time dependency in 2 crates. It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) Miller-Rabin version
grafite ^1.1
1 yozuk-core-skillset optional ^1.1.1
1 rug-miller-rabin dev ^1