This also affects the `non_exhaustive_omitted_patterns` and `must_not_suspend` lints as they are not stable. This also changes the diagnostic level to pull from `unknown_lints` instead of always being allow or deny.
This also affects the `non_exhaustive_omitted_patterns` and `must_not_suspend` lints as they are not stable. This also changes the diagnostic level to pull from `unknown_lints` instead of always being allow or deny.