error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable
- --> $DIR/borrowck-auto-mut-ref-to-immut-var.rs:25:5
+ --> $DIR/borrowck-auto-mut-ref-to-immut-var.rs:15:5
|
LL | let x = Foo { x: 3 };
| - help: consider changing this to be mutable: `mut x`