swift driver has unbound variables

2014-11-18 12:49:23.435 3992 DEBUG swiftclient [-] RESP BODY: [] http_log /usr/local/lib/python2.7/dist-packages/swiftclient/client.py:99
2014-11-18 12:49:23.436 3992 DEBUG datasources_swift_driver_py [-] Swift obtaining objects List update_from_datasource /opt/stack/new/congress/congress/datasources/swift_driver.py:83
2014-11-18 12:49:23.436 3992 DEBUG congress.dse.deepsix [-] swift:: Caught exception: log_debug /opt/stack/new/congress/congress/dse/deepsix.py:567
2014-11-18 12:49:23.436 3992 DEBUG congress.dse.deepsix [-] swift:: Traceback (most recent call last):
  File "/opt/stack/new/congress/congress/datasources/datasource_driver.py", line 718, in poll
    self.update_from_datasource() # sets self.state
  File "/opt/stack/new/congress/congress/datasources/swift_driver.py", line 93, in update_from_datasource
    LOG.debug("Containers Lists--->: %s" % containers)
UnboundLocalError: local variable 'containers' referenced before assignment
 log_debug /opt/stack/new/congress/congress/dse/deepsix.py:567

http://logs2.aaronorosen.com/79/131679/3/check/dsvm-tempest-full-congress/56da088/logs/screen-congress.txt.gz#_2014-11-18_12_49_23_436