| error[E0038]: the trait `StreamingIterator` is not dyn compatible |
| --> $DIR/trait-objects.rs:8:21 |
| | |
| LL | fn min_size(x: &mut dyn for<'a> StreamingIterator<Item<'a> = &'a i32>) -> usize { |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `StreamingIterator` is not dyn compatible |
| | |
| note: for a trait to be dyn compatible it needs to allow building a vtable |
| for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility> |
| --> $DIR/trait-objects.rs:2:10 |
| | |
| LL | trait StreamingIterator { |
| | ----------------- this trait is not dyn compatible... |
| LL | type Item<'a> where Self: 'a; |
| | ^^^^ ...because it contains the generic associated type `Item` |
| = help: consider moving `Item` to another trait |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0038`. |
