1error[E0038]: the trait `X` cannot be made into an object
2  --> $DIR/issue-67510-pass.rs:7:23
3   |
4LL | fn _func1<'a>(_x: Box<dyn X<Y<'a>=&'a ()>>) {}
5   |                       ^^^^^^^^^^^^^^^^^^^ `X` cannot be made into an object
6   |
7note: 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>
8  --> $DIR/issue-67510-pass.rs:4:10
9   |
10LL | trait X {
11   |       - this trait cannot be made into an object...
12LL |     type Y<'a>;
13   |          ^ ...because it contains the generic associated type `Y`
14   = help: consider moving `Y` to another trait
15
16error: aborting due to previous error
17
18For more information about this error, try `rustc --explain E0038`.
19