| error[E0596]: cannot borrow `*f.s` as mutable, as it is behind a `&` reference | |
| --> $DIR/issue-38147-4.rs:6:5 | |
| | | |
| LL | fn f(x: usize, f: &Foo) { | |
| | ---- help: consider changing this to be a mutable reference: `&mut Foo<'_>` | |
| LL | f.s.push('x'); | |
| | ^^^ `f` is a `&` reference, so the data it refers to cannot be borrowed as mutable | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0596`. |