error[E0309]: the associated type `::Item` may not live long enough --> $DIR/projection-no-regions-fn.rs:13:5 | LL | Box::new(x.next()) | ^^^^^^^^^^^^^^^^^^ | = help: consider adding an explicit lifetime bound `::Item: 'a`... error[E0309]: the associated type `::Item` may not live long enough --> $DIR/projection-no-regions-fn.rs:28:5 | LL | Box::new(x.next()) | ^^^^^^^^^^^^^^^^^^ | = help: consider adding an explicit lifetime bound `::Item: 'a`... error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0309`.