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2fe2975391
never consider unsafe blocks unused if they would be required with deny(unsafe_op_in_unsafe_fn) Judging from https://github.com/rust-lang/rust/issues/71668#issuecomment-1200317370 the consensus nowadays seems to be that we should never consider an unsafe block unused if it was required with `deny(unsafe_op_in_unsafe_fn)`, no matter whether that lint is actually enabled or not. So let's adjust rustc accordingly. The first commit does the change, the 2nd does some cleanup.