Put MaybeUninit dependency back
@@ -5,6 +5,7 @@ use core::cmp::{Eq, Ord, Ordering, PartialEq};
use core::fmt::{self, Debug, Formatter};
use core::hash::{Hash, Hasher};
use core::iter::FromIterator;
+use core::mem::MaybeUninit;
use core::ops::{Deref, DerefMut, Index, IndexMut};
use core::ptr;
use core::slice::SliceIndex;
