> I would hate to call out specific authors and crates

Yeah I feel you. No need to call anyone out when they're just putting out their work for free for us to use.

That said, I think generally the code that I've seen is good quality. Everyone uses rustfmt, everyone tries to address clippy lints. I've seen PRs in popular libraries dropping optional libraries to get slimmer. Rust libraries aren't perfect, but they're pretty good.