error[E0277]: the trait bound `std::boxed::Box<{integer}>: std::marker::Copy` is not satisfied
  --> $DIR/kindck-impl-type-params-2.rs:23:5
   |
LL |     take_param(&x);
   |     ^^^^^^^^^^ the trait `std::marker::Copy` is not implemented for `std::boxed::Box<{integer}>`
   |
   = note: required because of the requirements on the impl of `Foo` for `std::boxed::Box<{integer}>`
note: required by `take_param`
  --> $DIR/kindck-impl-type-params-2.rs:19:1
   |
LL | fn take_param<T:Foo>(foo: &T) { }
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.