hacking not compatible with flake8 3.0.x

I use flake8+hacking with a project outside of OpenStack and it just started failing. It appears to be an incompatibility between flake8 3.0.x and hacking. The error goes away after I remove hacking. Things also work if I install flake8<3.0.

I see that the issue has been reported against flake8, as well. https://gitlab.com/pycqa/flake8/issues/153

The error I get is:

Traceback (most recent call last):
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 114, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python2.7/site-packages/flake8/checker.py", line 222, in _run_checks_from_queue
    checker.run_checks(self.results_queue, self.statistics_queue)
  File "/usr/lib/python2.7/site-packages/flake8/checker.py", line 558, in run_checks
    self.process_tokens()
  File "/usr/lib/python2.7/site-packages/flake8/checker.py", line 542, in process_tokens
    self.handle_newline(token_type)
  File "/usr/lib/python2.7/site-packages/flake8/checker.py", line 592, in handle_newline
    self.run_logical_checks()
  File "/usr/lib/python2.7/site-packages/flake8/checker.py", line 494, in run_logical_checks
    results = self.run_check(plugin, logical_line=logical_line) or ()
  File "/usr/lib/python2.7/site-packages/flake8/checker.py", line 447, in run_check
    self.processor.keyword_arguments_for(plugin.parameters, arguments)
  File "/usr/lib/python2.7/site-packages/flake8/processor.py", line 213, in keyword_arguments_for
    arguments[param] = getattr(self, param)
AttributeError: 'FileProcessor' object has no attribute 'physical_line'