| error[E0038]: the trait `Trait` cannot be made into an object | |
| --> $DIR/E0038.rs:15:1 | |
| | | |
| LL | fn call_foo(x: Box<Trait>) { | |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Trait` cannot be made into an object | |
| | | |
| = note: method `foo` references the `Self` type in its arguments or return type | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0038`. |