In legacy/trac#32339 and legacy/trac#32344, we broke "make test-stem", but we didn't notice before merging, because "make test-stem" is allow_failure in Travis CI. It looks like we need to get stem to launch a new tor process for more tests. Or our immutability checks are too strict. Here is one of the errors: ``` ====================================================================== FAIL: test_take_ownership_via_controller ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/dev/stem/stem/util/test_tools.py", line 152, in <lambda> self.method = lambda test: self.result(test) # method that can be mixed into TestCases File "/home/dev/stem/stem/util/test_tools.py", line 227, in result test.fail(self._result.msg) AssertionError: Traceback (most recent call last): File "/home/dev/stem/stem/util/test_tools.py", line 169, in _wrapper runner(*args) if args else runner() File "/home/dev/stem/test/integ/process.py", line 641, in test_take_ownership_via_controller take_ownership = True, File "/home/dev/stem/stem/process.py", line 285, in launch_tor_with_config return launch_tor(tor_cmd, ['-f', '-'], None, completion_percent, init_msg_handler, timeout, take_ownership, close_output, stdin = config_str) File "/home/dev/stem/stem/process.py", line 158, in launch_tor raise OSError('Process terminated: %s' % last_problem) OSError: Process terminated: Failed to bind one of the listener ports. ---------------------------------------------------------------------- ```