15 lines
452 B
Plaintext
15 lines
452 B
Plaintext
error[E0596]: cannot borrow `x.0` as mutable, as `x` is not declared as mutable
|
|
--> $DIR/borrowck-ref-mut-of-imm.rs:4:12
|
|
|
|
|
LL | Some(ref mut v) => *v
|
|
| ^^^^^^^^^ cannot borrow as mutable
|
|
|
|
|
help: consider changing this to be mutable
|
|
|
|
|
LL | fn destructure(mut x: Option<isize>) -> isize {
|
|
| +++
|
|
|
|
error: aborting due to 1 previous error
|
|
|
|
For more information about this error, try `rustc --explain E0596`.
|