Absolutely, I just wanted to clarify that the regex library isn't really one of those cases. And I haven't personally used a compile-time validator for regex li

Absolutely, I just wanted to clarify that the regex library isn't really one of those cases. And I haven't personally used a compile-time validator for regex literals in another language, so I'm not sure that missing clippy should be seen as a major gap in the tooling (although it does have many other useful checks). I certainly think there are other cases (serde immediately comes to mind) where the best developer experience can only be had on nightly, and that's a big problem for wider Rust adoption.