error[E0117]: only traits defined in the current crate can be implemented for types defined outside of the crate
  --> $DIR/impl-foreign-for-fundamental[foreign].rs:10:1
   |
LL | impl Remote for Box<i32> {
   | ^^^^^------^^^^^--------
   |      |          |
   |      |          `i32` is not defined in the current crate
   |      `std::alloc::Global` is not defined in the current crate
   |
   = note: impl doesn't have any local type before any uncovered type parameters
   = note: for more information see https://doc.rust-lang.org/reference/items/implementations.html#orphan-rules
   = note: define and implement a trait or new type instead

error[E0117]: only traits defined in the current crate can be implemented for types defined outside of the crate
  --> $DIR/impl-foreign-for-fundamental[foreign].rs:14:1
   |
LL | impl<T> Remote for Box<Rc<T>> {
   | ^^^^^^^^------^^^^^----------
   |         |          |
   |         |          `Rc` is not defined in the current crate
   |         `std::alloc::Global` is not defined in the current crate
   |
   = note: impl doesn't have any local type before any uncovered type parameters
   = note: for more information see https://doc.rust-lang.org/reference/items/implementations.html#orphan-rules
   = note: define and implement a trait or new type instead

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0117`.