vlib/v/checker/tests/map_func_void_return_err.vv:2:2: warning: unused variable: `list`
    1 | fn main() {
    2 |     list := [1,2,3].map(voids(it))
      |     ~~~~
    3 | }
    4 |
vlib/v/checker/tests/map_func_void_return_err.vv:2:22: error: type mismatch, `voids` does not return anything
    1 | fn main() {
    2 |     list := [1,2,3].map(voids(it))
      |                         ~~~~~~~~~
    3 | }
    4 |
