vlib/v/checker/tests/assert_option_err.vv:4:9: error: assert can be used only with `bool` expressions, but found `void` instead
    2 | 
    3 | fn main() {
    4 |     assert os.truncate('testfile.txt', 6666) or { panic(err) }
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    5 | }