Correct run command for encoder such that the result is assigned and reported.

        log_dbg_msg(f"{self._type} encoder command:\n{cmd_str}")

        try:

            result = run(command, capture_output=True, check=True, timeout=self.timeout)

            result = run(command, capture_output=True, check=False, timeout=self.timeout)

        except TimeoutExpired:

            pytest.fail(f"{self._type} encoder run timed out after {self.timeout}s.")