| error[E0038]: the trait `B` cannot be made into an object | |
| --> $DIR/issue-38404.rs:3:15 | |
| | | |
| LL | trait A<T>: std::ops::Add<Self> + Sized {} | |
| | ------------------- ...because it uses `Self` as a type parameter in this | |
| LL | trait B<T>: A<T> {} | |
| | - this trait cannot be made into an object... | |
| LL | trait C<T>: A<dyn B<T, Output=usize>> {} | |
| | ^^^^^^^^^^^^^^^^^^^^^^ the trait `B` cannot be made into an object | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0038`. |