error[E0261]: use of undeclared lifetime name `'a`
  --> $DIR/issue-69136-inner-lifetime-resolve-error.rs:17:65
   |
LL | type Return<A> = impl WithAssoc<A, AssocType = impl SomeTrait + 'a>;
   |             -                                                   ^^ undeclared lifetime
   |             |
   |             help: consider introducing lifetime `'a` here: `'a,`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0261`.