fuchsia-zircon is used at run time in 3,094 crates (of which 3,094 optionally). It is a direct run-time dependency in 2 crates. It's used at build time in 14 crates (of which 14 optionally, ). It's used only as a dev dependency in 221 crates.

Depender (with downloads and own rev deps) fuchsia-zircon version
330 3 corcovado ^0.3.2
retty-io ^0.3.2