error[E0309]: the parameter type `Self` may not live long enough
  --> $DIR/regions-infer-bound-from-trait-self.rs:46:9
   |
LL | trait InheritsFromNothing<'a> : Sized {
   |                           -- the parameter type `Self` must be valid for the lifetime `'a` as defined here...
LL |     fn foo(self, x: Inv<'a>) {
LL |         check_bound(x, self)
   |         ^^^^^^^^^^^^^^^^^^^^ ...so that the type `Self` will meet its required lifetime bounds
   |
help: consider adding an explicit lifetime bound
   |
LL | trait InheritsFromNothing<'a> : Sized where Self: 'a {
   |                                       ++++++++++++++

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0309`.