error: lifetime may not live long enough --> $DIR/issue-53432-nested-closure-outlives-borrowed-value.rs:4:9 | LL | let _action = move || { | ------- | | | | | return type of closure `{closure@$DIR/issue-53432-nested-closure-outlives-borrowed-value.rs:4:9: 4:11}` contains a lifetime `'2` | lifetime `'1` represents this closure's body LL | || f() // The `nested` closure | ^^^^^^ returning this value requires that `'1` must outlive `'2` | = note: closure implements `Fn`, so references to captured variables can't escape the closure help: consider adding 'move' keyword before the nested closure | LL | move || f() // The `nested` closure | ++++ error: aborting due to 1 previous error