That seems like a gross overstatement.
https://github.com/rust-lang/rust/blob/master/library/std/sr...
CTRL-F: unsafe
Only one result, an optional utility function: "pub unsafe fn get_many_unchecked_mut"
There's far more unsafe there: https://github.com/rust-lang/hashbrown/blob/f2e62124cd947b5e...
There's far more unsafe there: https://github.com/rust-lang/hashbrown/blob/f2e62124cd947b5e...