3 //~^ HELP consider changing this to be a mutable reference
4 //~| SUGGESTION &mut 16
6 //~^ ERROR cannot assign to `*foo` which is behind a `&` reference
8 //~^ HELP consider changing this to be a mutable reference
9 //~| SUGGESTION &mut i32
11 //~^ ERROR cannot assign to `*bar` which is behind a `&` reference