s2n-quic-rustls is used at run time in 6 crates (of which 2 optionally). It is a direct run-time dependency in 2 crates.

Depender (with downloads and own rev deps) s2n-quic-rustls version
4.6K 1 s2n-quic-tls-default =0.56.0
11K 15 s2n-quic optional =0.56.0