fast_html5ever is used at run time in 13 crates (of which 2 optionally). It is a direct run-time dependency in 3 crates.

Depender (with downloads and own rev deps) fast_html5ever version
15K 9 spider ^0.26.6
190 2 accessibility-scraper ^0.26.6
170 1 accessibility-tree ^0.26.6