Description of problem: Installer fails when trying to use Authenticated registry with following error

<ec2-52-33-135-189.us-west-2.compute.amazonaws.com> (0, '\r\n{"exception": "  File \\"/tmp/ansible_PzdEUT/ansible_module_docker_creds.py\\", line 141, in validate_registry_login\\n    urllib.request.urlopen(req)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 154, in urlopen\\n    return opener.open(url, data, timeout)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 437, in open\\n    response = meth(req, response)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 550, in http_response\\n    \'http\', request, response, code, msg, hdrs)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 475, in error\\n    return self._call_chain(*args)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 409, in _call_chain\\n    result = func(*args)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 558, in http_error_default\\n    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)\\n", "changed": false, "failed": true, "state": "unknown", "invocation": {"module_args": {"username": "prod-user-name", "test_login": "True", "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER", "registry": "registry.redhat.io", "path": "/root/.docker"}}, "msg": "HTTP Error 401: Unauthorized"}\r\n', 'Shared connection to ec2-52-33-135-189.us-west-2.compute.amazonaws.com closed.\r\n')
fatal: [ec2-52-33-135-189.us-west-2.compute.amazonaws.com]: FAILED! => {
    "failed": true, 
    "msg": "The conditional check 'crt_oreg_auth_credentials_create.rc == 0' failed. The error was: error while evaluating conditional (crt_oreg_auth_credentials_create.rc == 0): 'dict object' has no attribute 'rc'"
}


Version-Release number of the following components:
openshift-ansible 0e5dd09aa1d4bc9f938d8ef30a60b42c13358fbb
rpm -q ansible 
ansible-2.4.5.0-1.el7ae.noarch
ansible --version
ansible 2.4.5.0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, Jun 12 2018, 10:42:23) [GCC 4.8.5 20150623 (Red Hat 4.8.5-34)]

How reproducible: Only with prod authenticated registry

Actual results:
Please include the entire output from the last TASK line through the end of output if an error is generated

<ec2-52-33-135-189.us-west-2.compute.amazonaws.com> (0, '\r\n{"exception": "  File \\"/tmp/ansible_PzdEUT/ansible_module_docker_creds.py\\", line 141, in validate_registry_login\\n    urllib.request.urlopen(req)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 154, in urlopen\\n    return opener.open(url, data, timeout)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 437, in open\\n    response = meth(req, response)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 550, in http_response\\n    \'http\', request, response, code, msg, hdrs)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 475, in error\\n    return self._call_chain(*args)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 409, in _call_chain\\n    result = func(*args)\\n  File \\"/usr/lib64/python2.7/urllib2.py\\", line 558, in http_error_default\\n    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)\\n", "changed": false, "failed": true, "state": "unknown", "invocation": {"module_args": {"username": "prod-user-name", "test_login": "True", "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER", "registry": "registry.redhat.io", "path": "/root/.docker"}}, "msg": "HTTP Error 401: Unauthorized"}\r\n', 'Shared connection to ec2-52-33-135-189.us-west-2.compute.amazonaws.com closed.\r\n')
fatal: [ec2-52-33-135-189.us-west-2.compute.amazonaws.com]: FAILED! => {
    "failed": true, 
    "msg": "The conditional check 'crt_oreg_auth_credentials_create.rc == 0' failed. The error was: error while evaluating conditional (crt_oreg_auth_credentials_create.rc == 0): 'dict object' has no attribute 'rc'"
}


Expected results: Install should succeed.

Additional info:
Please attach logs from ansible-playbook with the -vvv flag