1 error[E0382]: use of moved value: `hello`
2 --> $DIR/not-copy-closure.rs:10:13
5 | ----- value moved here
7 | ^^^^^ value used here after move
9 note: closure cannot be moved more than once as it is not `Copy` due to moving the variable `a` out of its environment
10 --> $DIR/not-copy-closure.rs:6:9
14 help: consider mutably borrowing `hello`
16 LL | let b = &mut hello;
19 error: aborting due to previous error
21 For more information about this error, try `rustc --explain E0382`.