error[E0277]: the trait bound `cross_crate::NonConst: ~const cross_crate::MyTrait` is not satisfied --> $DIR/cross-crate.rs:17:14 | LL | NonConst.func(); | ^^^^ the trait `cross_crate::MyTrait` is not implemented for `cross_crate::NonConst` | = help: the trait `cross_crate::MyTrait` is implemented for `cross_crate::NonConst` error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0277`.