I guess it's because we use clippy to lint all the Rust code, combined with always pulling the latest Rust compiler (from Fedora Rawhide). But it's a real thing, there's a lot of churn.
The good thing is clippy / rustc has very good diagnostics and usually tells you "do X to fix this".
I think what clippy needs the most is a way to say, "make all clippy warnings as errors, but only for warnings up to Rust 1.80". And then devs can update that number whenever they want, as opposed to whenever new updates come in.
Or tie it to the current edition, or the current MSRV if defined.
The good thing is clippy / rustc has very good diagnostics and usually tells you "do X to fix this".