Yes. It wouldn't be too unidiomatic to use get_unchecked in those two places, perhaps with a debug_assert! in place. It would be really nice if this wasn't nee

Yes. It wouldn't be too unidiomatic to use get_unchecked in those two places, perhaps with a debug_assert! in place. It would be really nice if this wasn't needed, but it's a valid use of unsafe code.