src/test/ui/save-analysis/issue-68621.stderr

   1 error: unconstrained opaque type
   2   --> $DIR/issue-68621.rs:14:19
   3    |
   4 LL |     type Future = impl Trait;
   5    |                   ^^^^^^^^^^
   6    |
   7    = note: `Future` must be used in combination with a concrete type within the same module
   8
   9 error: aborting due to previous error
  10