src/test/ui/compare-method/trait-bound-on-type-parameter.stderr

   1 error[E0276]: impl has stricter requirements than trait
   2   --> $DIR/trait-bound-on-type-parameter.rs:15:5
   3    |
   4 LL |   fn b<C,D>(&self, x: C) -> C;
   5    |   ---------------------------- definition of `b` from trait
   6 ...
   7 LL |     fn b<F: Sync, G>(&self, _x: F) -> F { panic!() }
   8    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `F: Sync`
   9
  10 error: aborting due to previous error
  11
  12 For more information about this error, try `rustc --explain E0276`.