fail [github.com/openshift/origin/test/e2e/upgrade/upgrade.go:138]: during upgrade
Unexpected error:
    <*errors.errorString | 0xc0045c0c40>: {
        s: "Cluster did not complete upgrade: timed out waiting for the condition",
    }
    Cluster did not complete upgrade: timed out waiting for the condition
occurred

Several pods (support-operator, image-registry) are failing to mount volumes with timeout expired waiting for volumes to attach or mount for pod. Additionally, both pods exit frequently in the build log.

May 20 13:10:56.489 W ns/openshift-support pod/support-operator-9cd87985f-dkk8h Unable to mount volumes for pod "support-operator-9cd87985f-dkk8h_openshift-support(6ad8d075-7b00-11e9-add6-122eab0cd460)": timeout expired waiting for volumes to attach or mount for pod "openshift-support"/"support-operator-9cd87985f-dkk8h". list of unmounted volumes=[snapshots operator-token-85k6q]. list of unattached volumes=[snapshots operator-token-85k6q]

May 20 14:14:43.608 E ns/openshift-support pod/support-operator-6b6bdb7cb9-9hqvd node/ip-10-0-175-110.ec2.internal container=operator container exited with code 137 (ContainerStatusUnknown): The container could not be located when the pod was terminated

https://storage.googleapis.com/origin-ci-test/pr-logs/pull/openshift_installer/1161/pull-ci-openshift-installer-master-e2e-aws-upgrade/430/build-log.txt

Cluster Version:
{
  "metadata": {
    "name": "version",
    "selfLink": "/apis/config.openshift.io/v1/clusterversions/version",
    "uid": "08b30497-7afd-11e9-ac40-127d4303b792",
    "resourceVersion": "60072",
    "generation": 2,
    "creationTimestamp": "2019-05-20T12:44:40Z"
  },
  "spec": {
    "clusterID": "25354c61-c91f-4663-abfb-134c829d9aed",
    "desiredUpdate": {
      "version": "",
      "image": "registry.svc.ci.openshift.org/ci-op-ryvgwxg8/release@sha256:651930c24c6621dfbe9a10db3b7cf8912898b2a962b962184897c8bbacb94029",
      "force": true
    },
    "upstream": "https://api.openshift.com/api/upgrades_info/v1/graph",
    "channel": "stable-4.1"
  },
  "status": {
    "desired": {
      "version": "0.0.1-2019-05-20-122935",
      "image": "registry.svc.ci.openshift.org/ci-op-ryvgwxg8/release@sha256:651930c24c6621dfbe9a10db3b7cf8912898b2a962b962184897c8bbacb94029",
      "force": true
    },
    "history": [
      {
        "state": "Partial",
        "startedTime": "2019-05-20T13:02:40Z",
        "completionTime": null,
        "version": "0.0.1-2019-05-20-122935",
        "image": "registry.svc.ci.openshift.org/ci-op-ryvgwxg8/release@sha256:651930c24c6621dfbe9a10db3b7cf8912898b2a962b962184897c8bbacb94029",
        "verified": false
      },
      {
        "state": "Completed",
        "startedTime": "2019-05-20T12:45:24Z",
        "completionTime": "2019-05-20T13:02:40Z",
        "version": "0.0.1-2019-05-20-122309",
        "image": "registry.svc.ci.openshift.org/ci-op-ryvgwxg8/release@sha256:ef62323387550d9c9501fa96b59daac227ea0be3de67ad0732734e6fc648d826",
        "verified": false
      }
    ],
    "observedGeneration": 2,
    "versionHash": "9qWcdwYEgAg=",
    "conditions": [
      {
        "type": "Available",
        "status": "True",
        "lastTransitionTime": "2019-05-20T12:59:55Z",
        "message": "Done applying 0.0.1-2019-05-20-122309"
      },
      {
        "type": "Failing",
        "status": "True",
        "lastTransitionTime": "2019-05-20T14:14:21Z",
        "reason": "ClusterOperatorNotAvailable",
        "message": "Cluster operator support is still updating"
      },
      {
        "type": "Progressing",
        "status": "True",
        "lastTransitionTime": "2019-05-20T13:02:40Z",
        "reason": "ClusterOperatorNotAvailable",
        "message": "Unable to apply 0.0.1-2019-05-20-122935: the cluster operator support has not yet successfully rolled out"
      },
      {
        "type": "RetrievedUpdates",
        "status": "False",
        "lastTransitionTime": "2019-05-20T12:45:24Z",
        "reason": "RemoteFailed",
        "message": "Unable to retrieve available updates: currently installed version 0.0.1-2019-05-20-122935 not found in the \"stable-4.1\" channel"
      }
    ],
    "availableUpdates": null
  }
}

How reproducible:
Appears to be a flake or bug with master.