error: lifetime may not live long enough --> $DIR/issue-42574-diagnostic-in-nested-closure.rs:6:8 | LL | || doit(data); | -- ^^^^^^^^^^ argument requires that `'1` must outlive `'static` | | | lifetime `'1` represents this closure's body | = note: closure implements `FnMut`, so references to captured variables can't escape the closure error[E0597]: `data` does not live long enough --> $DIR/issue-42574-diagnostic-in-nested-closure.rs:6:13 | LL | || doit(data); | -- -----^^^^- | | | | | | | borrowed value does not live long enough | | argument requires that `data` is borrowed for `'static` | value captured here ... LL | } | - `data` dropped here while still borrowed error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0597`.