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error[E0277]: the trait bound `Self: Eq` is not satisfied
--> $DIR/wf-trait-fn-arg.rs:10:23
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LL | fn bar(&self, x: &Bar<Self>);
| ^^^^^^^^^ the trait `Eq` is not implemented for `Self`
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note: required by a bound in `Bar`
--> $DIR/wf-trait-fn-arg.rs:7:14
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LL | struct Bar<T:Eq+?Sized> { value: Box<T> }
| ^^ required by this bound in `Bar`
help: consider further restricting `Self`
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LL | fn bar(&self, x: &Bar<Self>) where Self: Eq;
| ++++++++++++++
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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