error[E0594]: cannot assign to `*foo`, which is behind a `&` reference --> $DIR/issue-51515.rs:4:5 | LL | *foo = 32; | ^^^^^^^^^ `foo` is a `&` reference, so the data it refers to cannot be written | help: consider changing this to be a mutable reference | LL | let foo = &mut 16; | +++ error[E0594]: cannot assign to `*bar`, which is behind a `&` reference --> $DIR/issue-51515.rs:8:5 | LL | *bar = 64; | ^^^^^^^^^ `bar` is a `&` reference, so the data it refers to cannot be written | help: consider specifying this binding's type | LL | let bar: &mut i32 = foo; | ++++++++++ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0594`.