error[E0596]: cannot borrow borrowed content `*self.s` of immutable binding as mutable
--> $DIR/issue-38147-2.rs:17:9
|
LL | s: &'a String
| ---------- use `&'a mut String` here to make mutable
...
LL | self.s.push('x');
| ^^^^^^ cannot borrow as mutable
error: aborting due to previous error
For more information about this error, try `rustc --explain E0596`.