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rust/src/test/ui/underscore-lifetime/dyn-trait-underscore.nll.stderr

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error: lifetime may not live long enough
--> $DIR/dyn-trait-underscore.rs:8:5
|
LL | fn a<T>(items: &[T]) -> Box<dyn Iterator<Item=&T>> {
| - let's call the lifetime of this reference `'1`
LL | // ^^^^^^^^^^^^^^^^^^^^^ bound *here* defaults to `'static`
LL | Box::new(items.iter())
| ^^^^^^^^^^^^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static`
error: aborting due to previous error