error[E0210]: type parameter `T` must be covered by another type when it appears before the first local type (`BigInt`) --> $DIR/coherence-bigint-param.rs:8:6 | LL | impl Remote1 for T { } | ^ type parameter `T` must be covered by another type when it appears before the first local type (`BigInt`) | = note: implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type = note: in this case, 'before' refers to the following order: `impl<..> ForeignTrait for T0`, where `T0` is the first and `Tn` is the last error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0210`.