gensym is used at run time in 85 crates (of which 17 optionally). It is a direct run-time dependency in 12 crates. It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) gensym version
14K 35 futures-signals ^0.1.0
1.6K 1 godot-ffi ^0.1.1
1.4K 2 picodata-plugin ^0.1.0
650 2 static_str_ops ^0.1
wasm-init ^0.1
libside ^0.1
1 heat-sdk-cli ^0.1.1
2 vineyard ^0.1
crosstrait ^0.1
comprehensive_s3 ^0.1
hecs-component-provider ^0.1
bittyset ^0.1.1