gensym is used at run time in 102 crates (of which 19 optionally). It is a direct run-time dependency in 14 crates. It's used only as a dev dependency in 5 crates.

Depender (with downloads and own rev deps) gensym version
19K 37 futures-signals ^0.1.0
3.1K 1 godot-ffi ^0.1.1
1.1K libside ^0.1
1.0K 2 static_str_ops ^0.1
700 2 picodata-plugin ^0.1
130 crosstrait ^0.1
2 vineyard ^0.1
6 xboot ^0.1.1
wasm-init ^0.1
bittyset ^0.1.1
comprehensive_s3 ^0.1
hecs-component-provider ^0.1
muchin ^0.1.1
1 heat-sdk-cli ^0.1.1