vlib/v/checker/tests/array_assign_err.vv:8:8: error: use `mut array2 := array1.clone()` instead of `mut array2 := array1` (or use `unsafe`)
    6 | fn main() {
    7 |     a := Dumb{[1, 2, 3]}
    8 |     mut b := a.v // I expect a compiler error
      |           ~~
    9 |     for _ in 0 .. 100 {
   10 |         b << [4, 5, 6]