fuchsia-zircon is used at run time in 3,090 crates (of which 3,090 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 222 crates.

Depender (with downloads and own rev deps) fuchsia-zircon version
500 3 corcovado ^0.3.2
retty-io ^0.3.2