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