| error[E0501]: cannot borrow `x` as immutable because previous closure requires unique access | |
| --> $DIR/yield-while-ref-reborrowed.rs:40:20 | |
| | | |
| LL | || { | |
| | -- coroutine construction occurs here | |
| LL | let a = &mut *x; | |
| | -- first borrow occurs due to use of `x` in coroutine | |
| ... | |
| LL | println!("{}", x); | |
| | ^ second borrow occurs here | |
| LL | Pin::new(&mut b).resume(()); | |
| | ------ first borrow later used here | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0501`. |