We don't enforce Clippy.
A number of default lints have high false positive rate.
-Selectively patching false-positives with `allow(clippy)` is considered worse than not using Clippy at all.
+Selectively patching false-positives with `allow(clippy)` is probably worse than entirely disabling a problematic lint.
There's a `cargo lint` command which runs a subset of low-FPR lints.
Careful tweaking of `lint` is welcome.
Of course, applying Clippy suggestions is welcome as long as they indeed improve the code.