| error[E0491]: in type `&'a &'b usize`, reference has a longer lifetime than the data it references |
| --> $DIR/regions-free-region-ordering-callee-4.rs:5:1 |
| | |
| LL | / fn ordering4<'a, 'b, F>(a: &'a usize, b: &'b usize, x: F) where F: FnOnce(&'a &'b usize) { |
| LL | | |
| LL | | // Do not infer ordering from closure argument types. |
| LL | | let z: Option<&'a &'b usize> = None; |
| LL | | } |
| | |_^ |
| | |
| note: the pointer is valid for the lifetime 'a as defined on the function body at 5:14 |
| --> $DIR/regions-free-region-ordering-callee-4.rs:5:14 |
| | |
| LL | fn ordering4<'a, 'b, F>(a: &'a usize, b: &'b usize, x: F) where F: FnOnce(&'a &'b usize) { |
| | ^^ |
| note: but the referenced data is only valid for the lifetime 'b as defined on the function body at 5:18 |
| --> $DIR/regions-free-region-ordering-callee-4.rs:5:18 |
| | |
| LL | fn ordering4<'a, 'b, F>(a: &'a usize, b: &'b usize, x: F) where F: FnOnce(&'a &'b usize) { |
| | ^^ |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0491`. |