| error[E0310]: the parameter type `E` may not live long enough |
| --> $DIR/unconstrained-closure-lifetime-trait-object.rs:7:29 |
| | |
| LL | Box::new(|e| Box::new(e.is::<E>())) |
| | ^^ |
| | | |
| | the parameter type `E` must be valid for the static lifetime... |
| | ...so that the type `E` will meet its required lifetime bounds |
| | |
| help: consider adding an explicit lifetime bound |
| | |
| LL | fn foo<E: 'static>() -> B { |
| | +++++++++ |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0310`. |
