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error[E0277]: `<P as Process<'_>>::Item` is not an iterator
--> $DIR/issue-22872.rs:20:40
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LL | let _: Box<dyn for<'b> Wrap<'b>> = Box::new(Wrapper(process));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ `<P as Process<'_>>::Item` is not an iterator
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= help: the trait `Iterator` is not implemented for `<P as Process<'_>>::Item`
note: required because of the requirements on the impl of `for<'b> Wrap<'b>` for `Wrapper<P>`
--> $DIR/issue-22872.rs:7:13
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LL | impl<'b, P> Wrap<'b> for Wrapper<P>
| ^^^^^^^^ ^^^^^^^^^^
= note: required for the cast from `Wrapper<P>` to the object type `dyn for<'b> Wrap<'b>`
help: consider further restricting the associated type
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LL | fn push_process<P>(process: P) where P: Process<'static>, <P as Process<'_>>::Item: Iterator {
| ++++++++++++++++++++++++++++++++++++
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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