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error[E0038]: the trait `Foo` cannot be made into an object
--> $DIR/object-safety-err-ret.rs:17:16
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LL | fn use_dyn(v: &dyn Foo) {
| ^^^^^^^ `Foo` 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-err-ret.rs:8:23
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LL | trait Foo {
| --- this trait cannot be made into an object...
LL | fn test(&self) -> [u8; bar::<Self>()];
| ^^^^^^^^^^^^^^^^^^^ ...because method `test` references the `Self` type in its return type
= help: consider moving `test` to another trait
error: aborting due to previous error
For more information about this error, try `rustc --explain E0038`.
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