error[E0277]: the trait bound `T: TraitFoo` is not satisfied --> $DIR/copy-impl-cannot-normalize.rs:22:1 | LL | impl Copy for Foo {} | ^^^^^^^^^^^^^^^^^^^^^^^ the trait `TraitFoo` is not implemented for `T` | help: consider restricting type parameter `T` | LL | impl Copy for Foo {} | ++++++++++ error: aborting due to previous error For more information about this error, try `rustc --explain E0277`.