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error[E0038]: the trait `A` cannot be made into an object
--> $DIR/wf-object-safe.rs:9:13
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LL | let _x: &dyn A;
| ^^^^^^ `A` 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/wf-object-safe.rs:5:23
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LL | trait A {
| - this trait cannot be made into an object...
LL | fn foo(&self, _x: &Self);
| ^^^^^ ...because method `foo` references the `Self` type in this parameter
= help: consider moving `foo` to another trait
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0038`.
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