28     type Item: ?Sized;  typedef
45     fn get(&self) -> Option<&Self::Item>;  in get()
51     fn next(&mut self) -> Result<Option<&Self::Item>, Self::Error> {  in next()
124     fn find<F>(&mut self, mut f: F) -> Result<Option<&Self::Item>, Self::Error>  in find()
148         F: FnMut(&Self::Item),  in for_each()
207     fn nth(&mut self, n: usize) -> Result<Option<&Self::Item>, Self::Error> {  in nth()
300     fn next_back(&mut self) -> Result<Option<&Self::Item>, Self::Error> {  in next_back()
310     type Item = I::Item;  typedef
319     fn get(&self) -> Option<&I::Item> {  in get()
329     fn next(&mut self) -> Result<Option<&I::Item>, I::Error> {  in next()
339     type Item = I::Item;  typedef
348     fn get(&self) -> Option<&I::Item> {  in get()
358     fn next(&mut self) -> Result<Option<&I::Item>, I::Error> {  in next()
367     I: Iterator<Item = Result<&'a T, E>>,  in convert()
382     type Item = T;  typedef
430     type Item = T;  typedef
467     type Item = I::Item;  typedef
481     fn get(&self) -> Option<&I::Item> {  in get()
508     type Item = I::Item;  typedef
538     fn get(&self) -> Option<&I::Item> {  in get()
551     fn next(&mut self) -> Result<Option<&I::Item>, I::Error> {  in next()
595     type Item = B;  typedef
638     type Item = B;  typedef
679     type Item = I::Item;  typedef
688     fn get(&self) -> Option<&I::Item> {  in get()
693     fn next(&mut self) -> Result<Option<&I::Item>, B> {  in next()
714     fn next_back(&mut self) -> Result<Option<&I::Item>, B> {  in next_back()
729     type Item = I::Item;  typedef
744     fn get(&self) -> Option<&I::Item> {  in get()
770     type Item = I::Item;  typedef
785     fn get(&self) -> Option<&I::Item> {  in get()
811     type Item = I::Item;  typedef
826     fn get(&self) -> Option<&I::Item> {  in get()
861     type Item = I::Item;  typedef
875     fn get(&self) -> Option<&I::Item> {  in get()
897     fn _is_object_safe(_: &FallibleStreamingIterator<Item = (), Error = ()>) {}  in _is_object_safe()
898     fn _is_object_safe_double(_: &DoubleEndedFallibleStreamingIterator<Item = (), Error = ()>) {}  in _is_object_safe_double()