SliceIndex::get
RangeInclusive
The checks for `self.end() == usize::MAX` and `self.end() + 1 > slice.len()` can be replaced with `self.end() >= slice.len()`, since `self.end() < slice.len()` implies both `self.end() <= slice.len()` and `self.end() < usize::MAX`.
rustc_clean