55     pub fn by_mut(&mut self) -> Mut<T> {  in by_mut()
56         Mut {  in by_mut()
110     pub fn by_mut(self) -> Mut<'a, T> {  in by_mut()
111         Mut {  in by_mut()
128 pub struct Mut<'a, T>  struct
136 impl<'a, T> Copy for Mut<'a, T> where T: ?Sized {}  argument
138 impl<'a, T> Clone for Mut<'a, T>  implementation
147 impl<'a, T> Mut<'a, T>  implementation
153         Mut {  in new()
159     pub fn cast<U: CastTo>(self) -> Mut<'a, U::Target> {  in cast()
160         Mut {  in cast()
174     pub fn extend<'b>(self) -> Mut<'b, T> {  in extend()
175         Mut {  in extend()
186 impl<'a, T> Mut<'a, T> {  impl