src/test/ui/self/arbitrary_self_types_pin_lifetime_impl_trait.stderr

   1 error[E0700]: hidden type for `impl Trait` captures lifetime that does not appear in bounds
   2   --> $DIR/arbitrary_self_types_pin_lifetime_impl_trait.rs:6:44
   3    |
   4 LL |     fn f(self: Pin<&Self>) -> impl Clone { self }
   5    |                    -----                   ^^^^
   6    |                    |
   7    |                    hidden type `Pin<&Foo>` captures the anonymous lifetime defined here
   8    |
   9 help: to declare that the `impl Trait` captures `'_`, you can add an explicit `'_` lifetime bound
  10    |
  11 LL |     fn f(self: Pin<&Self>) -> impl Clone + '_ { self }
  12    |                                          ++++
  13
  14 error: aborting due to previous error
  15
  16 For more information about this error, try `rustc --explain E0700`.