Comment 0 for bug 1560425

Detailed bug description:
thread 7 swarm tests has failed status on 6.1 release with exception:
https://paste.mirantis.net/show/2010/

This problem reproduced because method:
https://github.com/openstack/fuel-qa/blob/master/fuelweb_test/models/collector_client.py#L45
returned json, such as:
https://paste.mirantis.net/show/2006/
but in method:
https://github.com/openstack/fuel-qa/blob/master/fuelweb_test/models/collector_client.py#L66
we wait list.

Steps to reproduce:
1. Run thread 7 test
2. Wait
Expected results:
Test passed
Actual result:
test failed:
https://patching-ci.infra.mirantis.net/view/All/job/6.1.system_test.centos.thread_7/18/console
Reproducibility:
100%
Workaround:
nothing