Tempest has many errors while running code from master

I pulled from the master today, configured etc/tempest.conf and tried to run 'nosetests tempest", I hit the below errors many a times:

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ERROR: test suite for <class 'tempest.tests.test_servers_negative.ServersNegativeTest'>
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Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/nose/suite.py", line 208, in run
    self.setUp()
  File "/usr/lib/pymodules/python2.7/nose/suite.py", line 291, in setUp
    self.setupContext(ancestor)
  File "/usr/lib/pymodules/python2.7/nose/suite.py", line 314, in setupContext
    try_run(context, names)
  File "/usr/lib/pymodules/python2.7/nose/util.py", line 478, in try_run
    return func()
  File "/home/patilk/openstack/tempest/tempest/tests/test_servers_negative.py", line 15, in setUpClass
    cls.os = openstack.Manager()
  File "/home/patilk/openstack/tempest/tempest/openstack.py", line 70, in __init__
    self.config.nova.auth_url,
AttributeError: 'NovaConfig' object has no attribute 'auth_url'

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