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error[E0038]: the trait `X` cannot be made into an object
--> $DIR/object-safety-bounds.rs:7:11
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LL | fn f() -> Box<dyn X<U = u32>> {
| ^^^^^^^^^^^^^^^^^^^ `X` cannot be made into an object
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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/object-safety-bounds.rs:4:13
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LL | trait X {
| - this trait cannot be made into an object...
LL | type U: PartialEq<Self>;
| ^^^^^^^^^^^^^^^ ...because it uses `Self` as a type parameter
error: aborting due to previous error
For more information about this error, try `rustc --explain E0038`.
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