src/test/ui/mismatched_types/method-help-unsatisfied-bound.stderr

   1 error[E0599]: no method named `unwrap` found for enum `std::result::Result<(), Foo>` in the current scope
   2   --> $DIR/method-help-unsatisfied-bound.rs:5:7
   3    |
   4 LL |     a.unwrap();
   5    |       ^^^^^^ method not found in `std::result::Result<(), Foo>`
   6    |
   7    = note: the method `unwrap` exists but the following trait bounds were not satisfied:
   8            `Foo : std::fmt::Debug`
   9
  10 error: aborting due to previous error
  11
  12 For more information about this error, try `rustc --explain E0599`.