According to the logs you removed 2 compute node before running health checks:
2015-12-11 18:01:15 INFO [64] Total list of nodes to remove: ["node-5"] 2015-12-11 18:40:49 INFO [71] Total list of nodes to remove: ["node-6"]
So failure of test 'Check that required services are running' is expected, see bug #1471172
According to the logs you removed 2 compute node before running health checks:
2015-12-11 18:01:15 INFO [64] Total list of nodes to remove: ["node-5"]
2015-12-11 18:40:49 INFO [71] Total list of nodes to remove: ["node-6"]
So failure of test 'Check that required services are running' is expected, see bug #1471172