|  | error[E0594]: cannot assign to `x`, as it is not declared as mutable | 
|  | --> $DIR/closure-immut-capture-error.rs:14:9 | 
|  | | | 
|  | LL |         x = 2; | 
|  | |         ^^^^^ cannot assign | 
|  | | | 
|  | help: consider changing this to be mutable | 
|  | | | 
|  | LL |     let mut x = 1; | 
|  | |         +++ | 
|  |  | 
|  | error[E0596]: cannot borrow `s` as mutable, as it is not declared as mutable | 
|  | --> $DIR/closure-immut-capture-error.rs:20:9 | 
|  | | | 
|  | LL |         s.read_to_end(&mut Vec::new()); | 
|  | |         ^ cannot borrow as mutable | 
|  | | | 
|  | help: consider changing this to be mutable | 
|  | | | 
|  | LL |     let mut s = std::io::stdin(); | 
|  | |         +++ | 
|  |  | 
|  | error: aborting due to 2 previous errors | 
|  |  | 
|  | Some errors have detailed explanations: E0594, E0596. | 
|  | For more information about an error, try `rustc --explain E0594`. |