| trait A<T>: std::ops::Add<Self> + Sized {} | |
| trait B<T>: A<T> {} | |
| trait C<T>: A<dyn B<T, Output = usize>> {} | |
| //~^ ERROR the trait `B` cannot be made into an object | |
| //~| ERROR the trait `B` cannot be made into an object | |
| //~| ERROR the trait `B` cannot be made into an object | |
| fn main() {} |