This issue blocks latest CQ. The logs are here: https://luci-logdog.appspot.com/logs/chromeos/buildbucket/cr-buildbucket.appspot.com/8923595701624154928/+/steps/HWTest__bvt-tast-cq_/0/stdout

Following are some sections might be related to the failure:

====================================================================

Suite job                                  [ PASSED ]
  tast                                       [ PASSED ]
  tast.audio.DevicePlay                      [ PASSED ]
  tast.audio.DeviceRecord                    [ PASSED ]
  tast.debugd.Printer                        [ PASSED ]
  tast.kernel.Limits                         [ PASSED ]
  tast.network.DefaultProfile                [ PASSED ]
  tast.network.SupportedProtocols            [ PASSED ]
  tast.platform.CheckProcesses               [ PASSED ]
  tast.platform.TPMResponsive                [ PASSED ]
  tast.power.CheckStatus                     [ PASSED ]
  tast.printer.AddGenericPrinter             [ PASSED ]
  tast.printer.CUPSD                         [ PASSED ]
  tast.security.Firewall                     [ PASSED ]
  tast.security.HardLinkRestrictions         [ PASSED ]
  tast.security.LogPerms                     [ PASSED ]
  tast.security.ModuleLocking                [ PASSED ]
  tast.security.MountSymlink                 [ PASSED ]
  tast.security.Mprotect                     [ PASSED ]
  tast.security.PrivilegedFiles              [ PASSED ]
  tast.security.ProtocolFamilies             [ PASSED ]
  tast.security.StatefulFiles                [ PASSED ]
  tast.security.StatefulPartitionHardening   [ PASSED ]
  tast.security.SymlinkRestrictions          [ PASSED ]
  tast.security.SystemDirs                   [ PASSED ]
  tast.meta.ListTests                        [ PASSED ]
  tast.meta.RunTests                         [ PASSED ]
  tast.power.Reboot                          [ PASSED ]
  tast                                       [ PASSED ]
  tast                                       [ FAILED ]
  tast                                         FAIL: 1 failed: ui.ChromeCrashLoggedIn; 7 missing: ui.ChromeCrashNotLoggedIn ui.ChromeLogin ui.ChromeRespawn ...
  tast.security.GPUSandboxed                 [ PASSED ]
  tast.security.NetworkListenersNonARC       [ PASSED ]
  tast.security.Sandboxed                    [ PASSED ]
  tast.security.UserFilesGuest               [ PASSED ]
  tast.security.UserFilesLoggedIn            [ PASSED ]
  tast.ui.ChromeCrashLoggedIn                [ FAILED ]
  tast.ui.ChromeCrashLoggedIn                  FAIL: Lost SSH connection to chromeos4-row5-rack10-host5:22: timed out, Test did not finish

====================================================================

  host: chromeos4-row5-rack9-host15, status: Ready, locked: False diagnosis: Working
  labels: ['bluetooth', 'gpu_family:tegra', 'nyan_big', 'board:nyan_big', 'board_freq_mem:nyan_big_2.1GHz_2GB', 'graphics:gles', 'cts_abi_arm', 'os:cros', 'power:battery', 'storage:mmc', 'webcam', 'hw_video_acc_vp8', 'hw_video_acc_h264', 'hw_video_acc_enc_h264', 'hw_video_acc_enc_vp8', 'internal_display', 'pool:cq', 'usb_nic:smsc75xx', 'model:nyan_big', 'audio_loopback_dongle', 'sparse_coverage_5', 'sparse_coverage_3', 'sparse_coverage_2', 'ec:cros', 'servo', 'cts_cpu_arm', 'variant:big', 'touchpad', 'touchscreen', 'phase:MP', 'cros-version:nyan_big-paladin/R73-11631.0.0-rc1', 'sku:big_cpu_nyan_2Gb']
  Last 10 jobs within 1:48:00:
  279763468 nyan_big-paladin/R73-11631.0.0-rc1/bvt-inline/login_OwnershipApi started on: 2019-01-22 15:43:08 status Completed
  2133069 Provision started on: 2019-01-22 15:35:56 status PASS
  2133004 Repair started on: 2019-01-22 15:26:38 status PASS
  2132977 Provision started on: 2019-01-22 15:24:11 status FAIL