| error[E0038]: the trait `B` cannot be made into an object |
| --> $DIR/issue-38404.rs:3:15 |
| | |
| LL | trait C<T>: A<dyn B<T, Output=usize>> {} |
| | ^^^^^^^^^^^^^^^^^^^^^^ `B` cannot be made into an object |
| | |
| note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety> |
| --> $DIR/issue-38404.rs:1:13 |
| | |
| LL | trait A<T>: std::ops::Add<Self> + Sized {} |
| | ^^^^^^^^^^^^^^^^^^^ ...because it uses `Self` as a type parameter |
| LL | trait B<T>: A<T> {} |
| | - this trait cannot be made into an object... |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0038`. |
