} else if errors.Is(err, exec.ErrWaitDelay) {
			fmt.Fprintf(cmd.Stdout, "*** Test I/O incomplete %v after exiting.\n", cmd.WaitDelay)
		}
		var ee *exec.ExitError
		if len(out) == 0 || !errors.As(err, &ee) || !ee.Exited() {
			// If there was no test output, print the exit status so that the reason
			// for failure is clear.
			fmt.Fprintf(cmd.Stdout, "%s\n", err)