in the task lgo of https://chromium-swarm-dev.appspot.com/task?id=34ca0e65b247d610&refresh=10&show_raw=1
the last step is 
substep: <
  step: <
    name: "Failure reason"
    status: SUCCESS
    started: <
      seconds: 1489036406
      nanos: 69999872
    >
    ended: <
      seconds: 1489036406
      nanos: 69999872
    >
    other_links: <
      label: "reason"
      logdog_stream: <
        name: "steps/Failure_reason/0/logs/reason/0"
      >
    >
  >
>

but the final proto uploaded to logdog does not contain that step:
https://1579-d8d5ab3-tainted-nodir-dot-luci-milo-dev.appspot.com/logdog/build/infra-experimental/swarm/chromium-swarm-dev.appspot.com/34ca0e65b247d611/+/annotations

note that there are some errors in the task log that seem to indicate that there was a problem sending pubsub messages.

[I 2017-03-08 21:13:26] Exiting serve loop.                         {"namedPipePath":"/b/s/w/irUhI6wq/tmp/ld.sock", "totalConnections":0}
[I 2017-03-08 21:13:26] Message output has closed                   {"stats":"{SentBytes:3161870 SentMessages:724 DiscardedMessages:0 Errors:0}"}
[E 2017-03-08 21:13:26] Annotated error stack:
original error: return code: 1

Not sure why it is INFO, and not ERROR or at least WARNING.


Also kitchen should have infra-failed.

This is a blocker for linux_chromium_rel_ng ( bug 660481 )