set error

tags: -worker-0
time: 2015-03-26 20:50:08.199796Z
tags: worker-0
test: setUpClass (tempest.api.object_storage.test_object_services.ObjectTest)
time: 2015-03-26 20:50:08.199796Z
failure: setUpClass (tempest.api.object_storage.test_object_services.ObjectTest) [ multipart
Content-Type: text/x-traceback;charset="utf8",language="python"
traceback
22F^M
Traceback (most recent call last):
  File "/vagrant/network/tempest/tempest/test.py", line 256, in setUpClass
    cls.setup_credentials()
  File "/vagrant/network/tempest/tempest/api/object_storage/base.py", line 51, in setup_credentials
    [operator_role]))
  File "/vagrant/network/tempest/tempest/common/accounts.py", line 350, in get_creds_by_roles
    creds = self.get_creds(index, roles=roles)
  File "/vagrant/network/tempest/tempest/common/accounts.py", line 289, in get_creds
    _hash = hashes[id]
TypeError: 'set' object does not support indexing
0^M