src/test/ui/type-alias-impl-trait/issue-74761-2.rs

   1 #![feature(member_constraints)]
   2 #![feature(type_alias_impl_trait)]
   3 //~^ WARN incomplete
   4
   5 pub trait A {
   6     type B;
   7     fn f(&self) -> Self::B;
   8 }
   9 impl<'a, 'b> A for () {
  10     //~^ ERROR the lifetime parameter `'a` is not constrained
  11     //~| ERROR the lifetime parameter `'b` is not constrained
  12     type B = impl core::fmt::Debug;
  13     //~^ ERROR is unstable
  14
  15
  16     fn f(&self) -> Self::B {}
  17 }
  18
  19 fn main() {}