+ export WORKSPACE=/var/lib/swarm/workspace/kubevirt-functional-tests-openshift-3.10-release + WORKSPACE=/var/lib/swarm/workspace/kubevirt-functional-tests-openshift-3.10-release + [[ openshift-3.10-release =~ openshift-.* ]] + [[ openshift-3.10-release =~ .*-crio-.* ]] + export KUBEVIRT_PROVIDER=os-3.10.0 + KUBEVIRT_PROVIDER=os-3.10.0 + export KUBEVIRT_NUM_NODES=2 + KUBEVIRT_NUM_NODES=2 + export NFS_WINDOWS_DIR=/home/nfs/images/windows2016 + NFS_WINDOWS_DIR=/home/nfs/images/windows2016 + export NAMESPACE=kube-system + NAMESPACE=kube-system + trap '{ make cluster-down; }' EXIT SIGINT SIGTERM SIGSTOP + make cluster-down ./cluster/down.sh /usr/bin/docker-current: Error response from daemon: grpc: the connection is unavailable. make: *** [cluster-down] Error 125 + make cluster-down ./cluster/down.sh /usr/bin/docker-current: Error response from daemon: grpc: the connection is unavailable. make: *** [cluster-down] Error 125