| error[E0596]: cannot borrow `*a` as mutable, as it is behind a `&` reference |
| --> $DIR/mut-arg-hint.rs:3:9 |
| | |
| LL | a.push_str("bar"); |
| | ^ `a` is a `&` reference, so the data it refers to cannot be borrowed as mutable |
| | |
| help: consider changing this to be a mutable reference |
| | |
| LL | fn foo(mut a: &mut String) { |
| | +++ |
| |
| error[E0596]: cannot borrow `*a` as mutable, as it is behind a `&` reference |
| --> $DIR/mut-arg-hint.rs:8:5 |
| | |
| LL | a.push_str("foo"); |
| | ^ `a` is a `&` reference, so the data it refers to cannot be borrowed as mutable |
| | |
| help: consider changing this to be a mutable reference |
| | |
| LL | pub fn foo<'a>(mut a: &'a mut String) { |
| | +++ |
| |
| error[E0596]: cannot borrow `*a` as mutable, as it is behind a `&` reference |
| --> $DIR/mut-arg-hint.rs:15:9 |
| | |
| LL | a.push_str("foo"); |
| | ^ `a` is a `&` reference, so the data it refers to cannot be borrowed as mutable |
| | |
| help: consider changing this to be a mutable reference |
| | |
| LL | pub fn foo(mut a: &mut String) { |
| | +++ |
| |
| error: aborting due to 3 previous errors |
| |
| For more information about this error, try `rustc --explain E0596`. |
