builder detail:

https://cros-goldeneye.corp.google.com/chromeos/healthmonitoring/buildDetails?buildbucketId=8947653388421135744


For cheets_NotificationTest, info in the debug file
05/02 04:54:22.857 ERROR|             utils:0282| [stderr] cat: /usr/local/autotest/.checksum: No such file or directory
05/02 04:58:26.527 ERROR|   logging_manager:0626| tko parser: {'cidb_build_stage_id': 78483629, 'builds': "{'cros-version': 'caroline-tot-chrome-pfq-informational/R68-10638.0.0-b2533932'}", 'job_started': 1525262045, 'hostname': 'chromeos6-row2-rack23-host13', 'cidb_build_id': 2533932, 'status_version': 1, 'label': 'caroline-tot-chrome-pfq-informational/R68-10638.0.0-b2533932/bvt-arc/cheets_Notification', 'parent_job_id': 196660074, 'drone': 'cros-full-0005.mtv.corp.google.com', 'user': 'chromeos-test', 'suite': 'bvt-arc', 'job_queued': 1525260118, 'experimental': 'False', 'build': 'caroline-tot-chrome-pfq-informational/R68-10638.0.0-b2533932'}
05/02 04:58:26.528 ERROR|   logging_manager:0626| tko parser: MACHINE NAME: chromeos6-row2-rack23-host13
05/02 04:58:26.528 ERROR|   logging_manager:0626| tko parser: MACHINE GROUP: caroline
05/02 04:58:26.528 ERROR|   logging_manager:0626| tko parser: parsing partial test ---- SERVER_JOB
05/02 04:58:26.528 ERROR|   logging_manager:0626| tko parser: parsing partial test None CLIENT_JOB.0
05/02 04:58:26.529 ERROR|   logging_manager:0626| tko parser: RUNNING: RUNNING
05/02 04:58:26.529 ERROR|   logging_manager:0626| CLIENT_JOB.0
05/02 04:58:26.529 ERROR|   logging_manager:0626| 
05/02 04:58:26.529 ERROR|   logging_manager:0626| tko parser: parsing partial test cheets_NotificationTest cheets_NotificationTest
05/02 04:58:26.529 ERROR|   logging_manager:0626| tko parser: RUNNING: RUNNING
05/02 04:58:26.529 ERROR|   logging_manager:0626| Subdir: cheets_NotificationTest
05/02 04:58:26.529 ERROR|   logging_manager:0626| Testname: cheets_NotificationTest
05/02 04:58:26.529 ERROR|   logging_manager:0626| 
05/02 04:58:26.530 ERROR|   logging_manager:0626| tko parser: update RUNNING reason: Unhandled DevToolsClientConnectionError: timed out
05/02 04:58:26.530 ERROR|   logging_manager:0626| tko parser: parsing test cheets_NotificationTest cheets_NotificationTest
05/02 04:58:26.530 ERROR|   logging_manager:0626| tko parser: ADD: FAIL
05/02 04:58:26.530 ERROR|   logging_manager:0626| Subdir: cheets_NotificationTest
05/02 04:58:26.530 ERROR|   logging_manager:0626| Testname: cheets_NotificationTest
05/02 04:58:26.530 ERROR|   logging_manager:0626| Unhandled DevToolsClientConnectionError: timed out
05/02 04:58:26.530 ERROR|   logging_manager:0626| tko parser: parsing test None CLIENT_JOB.0
05/02 04:58:26.531 ERROR|   logging_manager:0626| tko parser: ADD: GOOD
05/02 04:58:26.531 ERROR|   logging_manager:0626| Subdir: None
05/02 04:58:26.531 ERROR|   logging_manager:0626| Testname: CLIENT_JOB.0
05/02 04:58:26.531 ERROR|   logging_manager:0626| 
05/02 04:58:26.531 ERROR|   logging_manager:0626| tko parser: parsing test ---- SERVER_JOB



For cheets_KeyboardTest, info I can find in the debug
05/02 05:06:51.961 ERROR|             utils:0282| [stderr] cat: /usr/local/autotest/.checksum: No such file or directory
05/02 05:11:40.560 ERROR|   logging_manager:0626| tko parser: {'cidb_build_stage_id': 78483629, 'builds': "{'cros-version': 'caroline-tot-chrome-pfq-informational/R68-10638.0.0-b2533932'}", 'job_started': 1525262794, 'hostname': 'chromeos6-row2-rack23-host15', 'cidb_build_id': 2533932, 'status_version': 1, 'label': 'caroline-tot-chrome-pfq-informational/R68-10638.0.0-b2533932/bvt-arc/cheets_KeyboardTest', 'parent_job_id': 196660074, 'drone': 'cros-full-0005.mtv.corp.google.com', 'user': 'chromeos-test', 'suite': 'bvt-arc', 'job_queued': 1525260125, 'experimental': 'False', 'build': 'caroline-tot-chrome-pfq-informational/R68-10638.0.0-b2533932'}
05/02 05:11:40.561 ERROR|   logging_manager:0626| tko parser: MACHINE NAME: chromeos6-row2-rack23-host15
05/02 05:11:40.561 ERROR|   logging_manager:0626| tko parser: MACHINE GROUP: caroline
05/02 05:11:40.562 ERROR|   logging_manager:0626| tko parser: parsing partial test ---- SERVER_JOB
05/02 05:11:40.562 ERROR|   logging_manager:0626| tko parser: parsing partial test None CLIENT_JOB.0
05/02 05:11:40.562 ERROR|   logging_manager:0626| tko parser: RUNNING: RUNNING
05/02 05:11:40.562 ERROR|   logging_manager:0626| CLIENT_JOB.0
05/02 05:11:40.562 ERROR|   logging_manager:0626| 
05/02 05:11:40.562 ERROR|   logging_manager:0626| tko parser: parsing partial test cheets_KeyboardTest cheets_KeyboardTest
05/02 05:11:40.563 ERROR|   logging_manager:0626| tko parser: RUNNING: RUNNING
05/02 05:11:40.563 ERROR|   logging_manager:0626| Subdir: cheets_KeyboardTest
05/02 05:11:40.563 ERROR|   logging_manager:0626| Testname: cheets_KeyboardTest
05/02 05:11:40.563 ERROR|   logging_manager:0626| 
05/02 05:11:40.563 ERROR|   logging_manager:0626| tko parser: update RUNNING reason: Unhandled JsonRPCError: JsonRPC Error code: 0, Message: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.view.accessibility.AccessibilityNodeInfo.isVisibleToUser()' on a null object reference
05/02 05:11:40.563 ERROR|   logging_manager:0626| tko parser: parsing test cheets_KeyboardTest cheets_KeyboardTest
05/02 05:11:40.563 ERROR|   logging_manager:0626| tko parser: ADD: FAIL
05/02 05:11:40.564 ERROR|   logging_manager:0626| Subdir: cheets_KeyboardTest
05/02 05:11:40.564 ERROR|   logging_manager:0626| Testname: cheets_KeyboardTest
05/02 05:11:40.564 ERROR|   logging_manager:0626| Unhandled JsonRPCError: JsonRPC Error code: 0, Message: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.view.accessibility.AccessibilityNodeInfo.isVisibleToUser()' on a null object reference
05/02 05:11:40.564 ERROR|   logging_manager:0626| tko parser: parsing test None CLIENT_JOB.0
05/02 05:11:40.564 ERROR|   logging_manager:0626| tko parser: ADD: GOOD
05/02 05:11:40.564 ERROR|   logging_manager:0626| Subdir: None
05/02 05:11:40.564 ERROR|   logging_manager:0626| Testname: CLIENT_JOB.0
05/02 05:11:40.565 ERROR|   logging_manager:0626| 
05/02 05:11:40.565 ERROR|   logging_manager:0626| tko parser: parsing test ---- SERVER_JOB