fix warning by using iter() instead of into_iter()
Change into_iter() to iter() in impl_zip_iter macro
to avoid the compliation warning related to
s://github.com/rust-lang/rust/issues/66145.
@@ -108,7 +108,7 @@ macro_rules! impl_zip_iter {
#[inline]
fn next_back(&mut self) -> Option<Self::Item> {
let ($(ref mut $B,)*) = self.t;
- let size = *[$( $B.len(), )*].into_iter().min().unwrap();
+ let size = *[$( $B.len(), )*].iter().min().unwrap();
$(
if $B.len() != size {
