warning[E0210]: type parameter `T` must be covered by another type when it appears before the first local type (`LocalTy`) --> $DIR/orphan-check-projections-unsat-bounds.rs:28:6 | LL | impl foreign::Trait1 for as Discard>::Output | ^ type parameter `T` must be covered by another type when it appears before the first local type (`LocalTy`) | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124559 = 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 = note: `#[warn(uncovered_param_in_projection)]` on by default warning: 1 warning emitted For more information about this error, try `rustc --explain E0210`.