error[E0119]: conflicting implementations of trait `Trait` for type `Wrapper` --> $DIR/coherence-with-closure.rs:11:1 | LL | impl Trait for Wrapper {} | ------------------------------------- first implementation here LL | impl Trait for Wrapper {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Wrapper` error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0119`.