| error[E0495]: cannot infer an appropriate lifetime for borrow expression due to conflicting requirements |
| --> $DIR/regions-return-ref-to-upvar-issue-17403.rs:7:24 |
| | |
| LL | let mut f = || &mut x; |
| | ^^^^^^ |
| | |
| note: first, the lifetime cannot outlive the lifetime `'_` as defined on the body at 7:21... |
| --> $DIR/regions-return-ref-to-upvar-issue-17403.rs:7:21 |
| | |
| LL | let mut f = || &mut x; |
| | ^^^^^^^^^ |
| note: ...so that closure can access `x` |
| --> $DIR/regions-return-ref-to-upvar-issue-17403.rs:7:24 |
| | |
| LL | let mut f = || &mut x; |
| | ^^^^^^ |
| note: but, the lifetime must be valid for the call at 9:17... |
| --> $DIR/regions-return-ref-to-upvar-issue-17403.rs:9:17 |
| | |
| LL | let y = f(); |
| | ^^^ |
| note: ...so type `&mut i32` of expression is valid during the expression |
| --> $DIR/regions-return-ref-to-upvar-issue-17403.rs:9:17 |
| | |
| LL | let y = f(); |
| | ^^^ |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0495`. |
