31 pub trait FallibleAllocExt<T> {
33     fn try_push(&mut self, value: T) -> Result<(), alloc::collections::TryReserveError>;  in try_push()
37         other: &[T],  in try_extend_from_slice()  argument
40         T: Clone;  in try_extend_from_slice()
43 impl<T> FallibleAllocExt<T> for Vec<T> {
44     fn try_push(&mut self, value: T) -> Result<(), alloc::collections::TryReserveError> {  in try_push()
51         other: &[T],  in try_extend_from_slice()  argument
54         T: Clone,  in try_extend_from_slice()
64 pub fn vec_try_fill_with_alloc_err<T: Clone>(  in vec_try_fill_with_alloc_err()  argument
65     elem: T,  in vec_try_fill_with_alloc_err()
67 ) -> Result<Vec<T>, alloc::collections::TryReserveError> {  in vec_try_fill_with_alloc_err()  argument
95 pub fn try_to_vec<T: Clone>(s: &[T]) -> Result<Vec<T>, alloc::collections::TryReserveError> {  in try_to_vec()  argument