CC #3770 From https://github.com/rust-lang/rust-clippy/issues/3770#issuecomment-687565594 (@flip1995): > Oh I thought I replied to this: I definitely see now that having this > as a correctness lint might be the wrong categorization. What we might > want to do is to just allow this lint, if there are comments in the > arm bodies. But a good first step would be to downgrade this lint to > style or complexity. I would vote for style since merging two arms is > not always less complex.