sass-rs is used at run time in 10 crates. It's used at build time in 2 crates.

Depender (with downloads and own rev deps) sass-rs version
1.3K trunk ^0.2
330 web-bundler ^0.2
260 wasm-run optional ^0.2.2
120 cobalt-bin optional ^0.2
hyper-static-server optional ^0.2.2
mber ^0.2.2
mkbook build ^0.2
salmon ^0.2.2
sass-rocket-fairing ^0.2.2
sitegen ^0.2
unveil-rs ^0.2.2
webapp-frontend build ^0.2.2