| error[E0393]: the type parameter `C` must be explicitly specified |
| --> $DIR/default-param-self-projection.rs:13:17 |
| | |
| LL | trait A<C = <Self as D>::E> {} |
| | --------------------------- type parameter `C` must be specified for this |
| ... |
| LL | let B: &dyn A = &(); |
| | ^ |
| | |
| = note: because the parameter default references `Self`, the parameter must be specified on the trait object type |
| help: explicitly specify the type parameter |
| | |
| LL | let B: &dyn A</* C */> = &(); |
| | +++++++++ |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0393`. |