| error[E0308]: mismatched types | |
| --> $DIR/upcast-wrong-substs.rs:11:30 | |
| | | |
| LL | let y: &dyn Bar<usize> = x; | |
| | --------------- ^ expected trait `Bar`, found trait `Foo` | |
| | | | |
| | expected due to this | |
| | | |
| = note: expected reference `&dyn Bar<usize>` | |
| found reference `&dyn Foo` | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0308`. |