1 error[E0594]: cannot assign to `*v`, which is behind a `&` reference
2 --> $DIR/issue-83309-ice-immut-in-for-loop.rs:11:9
4 LL | for v in Query.iter_mut() {
5 | ---------------- this iterator yields `&` references
8 | ^^^^^^^ `v` is a `&` reference, so the data it refers to cannot be written
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0594`.