132     pub fn iter_mut(&mut self) -> IterMut<T> {  in iter_mut()
133         IterMut {  in iter_mut()
544     type IntoIter = IterMut<'a, T>;
613     inner: slice::IterMut<'a, (T, P)>,
863 pub struct IterMut<'a, T: 'a> {  struct
873     inner: slice::IterMut<'a, (T, P)>,
879     slice::IterMut<'a, (T, P)>: TrivialDrop,
885 pub(crate) fn empty_punctuated_iter_mut<'a, T>() -> IterMut<'a, T> {  in empty_punctuated_iter_mut()
886     IterMut {  in empty_punctuated_iter_mut()
891 impl<'a, T> Iterator for IterMut<'a, T> {  implementation
903 impl<'a, T> DoubleEndedIterator for IterMut<'a, T> {  implementation
909 impl<'a, T> ExactSizeIterator for IterMut<'a, T> {  implementation