|  | error[E0596]: cannot borrow `*rofl` as mutable, as it is behind a `&` reference | 
|  | --> $DIR/issue-85765-closure.rs:6:9 | 
|  | | | 
|  | LL |         rofl.push(Vec::new()); | 
|  | |         ^^^^ `rofl` is a `&` reference, so the data it refers to cannot be borrowed as mutable | 
|  | | | 
|  | help: consider changing this binding's type | 
|  | | | 
|  | LL |         let rofl: &mut Vec<Vec<i32>> = &mut test; | 
|  | |                    +++ | 
|  |  | 
|  | error[E0594]: cannot assign to `*r`, which is behind a `&` reference | 
|  | --> $DIR/issue-85765-closure.rs:13:9 | 
|  | | | 
|  | LL |         *r = 0; | 
|  | |         ^^^^^^ `r` is a `&` reference, so the data it refers to cannot be written | 
|  | | | 
|  | help: consider changing this to be a mutable reference | 
|  | | | 
|  | LL |         let r = &mut mutvar; | 
|  | |                  +++ | 
|  |  | 
|  | error[E0594]: cannot assign to `*x`, which is behind a `&` reference | 
|  | --> $DIR/issue-85765-closure.rs:20:9 | 
|  | | | 
|  | LL |         *x = 1; | 
|  | |         ^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written | 
|  | | | 
|  | help: consider changing this binding's type | 
|  | | | 
|  | LL |         let x: &mut usize = &mut{0}; | 
|  | |                 +++ | 
|  |  | 
|  | error[E0594]: cannot assign to `*y`, which is behind a `&` reference | 
|  | --> $DIR/issue-85765-closure.rs:27:9 | 
|  | | | 
|  | LL |         *y = 1; | 
|  | |         ^^^^^^ `y` is a `&` reference, so the data it refers to cannot be written | 
|  | | | 
|  | help: consider changing this binding's type | 
|  | | | 
|  | LL |         let y: &mut usize = &mut(0); | 
|  | |                 +++ | 
|  |  | 
|  | error: aborting due to 4 previous errors | 
|  |  | 
|  | Some errors have detailed explanations: E0594, E0596. | 
|  | For more information about an error, try `rustc --explain E0594`. |