warning[E0210]: type parameter `T` must be covered by another type when it appears before the first local type (`B`)
  --> $DIR/orphan-check-alias.rs:21:6
   |
LL | impl<T> foreign::Trait2<B, T> for <T as Id>::Assoc {
   |      ^ type parameter `T` must be covered by another type when it appears before the first local type (`B`)
   |
   = 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 <https://github.com/rust-lang/rust/issues/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<T1, ..., Tn> 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`.