unicode_categories is used at run time in 295 crates (of which 47 optionally, 13 directly). It's used at build time in 16 crates (of which 1 optionally, 0 directly). It's used only as a dev dependency in 14 crates.

Depender (with downloads and own rev deps) unicode_categories version
106K 10 sqlformat ^0.1.1
31K 47 comrak ^0.1.1
3.3K 20 snailquote ^0.1.1
850 12 rustfmt-nightly ^0.1.1
410 2 cargo-web ^0.1.1
360 3 tokenizers ^0.1
240 rustrict ^0.1
conllu-utils ^0.1
kvarn-chute ^0.1
mako ^0.1
rsmorphy ^0.1
rustfmt_lib ^0.1.1
waterbear ^0.1