Link to Builder
===============
https://uberchromegw.corp.google.com/i/official.desktop/builders/win-pgo/builds/190

Link to Log
===========
https://uberchromegw.corp.google.com/i/official.desktop/builders/win-pgo/builds/190/steps/steps/logs/stdio

Error Log
=========
command interrupted, attempting to kill
Could Not Find c:\b\build\slave\cache_dir\chromium.googlesource.com-a-chromium-src.lock
[0:02:39] Still working on:
[0:02:39]   src
[0:02:49] Still working on:
[0:02:49]   src
[0:02:59] Still working on:
[0:02:59]   src
===Failed in 3.1 mins===

We failed gclient sync, lets delete the checkout and retry.
deleting C:\b\build\slave\win-pgo\build\.gclient... done
deleting C:\b\build\slave\win-pgo\build\.gclient_entries... done
deleting C:\b\build\slave\win-pgo\build\.recipe_runtime... done
deleting C:\b\build\slave\win-pgo\build\build... done
deleting C:\b\build\slave\win-pgo\build\build_internal... done
deleting C:\b\build\slave\win-pgo\build\chrome_from_buildspec... done
deleting C:\b\build\slave\win-pgo\build\depot_tools... done
deleting C:\b\build\slave\win-pgo\build\old_src_third_party_crashpad_crashpad.git... done
deleting C:\b\build\slave\win-pgo\build\old_src_tools_grit.git... done

remoteFailed: [Failure instance: Traceback: <type 'exceptions.AssertionError'>: 
/home/chrome-bot/buildbot/build/third_party/twisted_10_2/twisted/spread/pb.py:516:expressionReceived
/home/chrome-bot/buildbot/build/third_party/twisted_10_2/twisted/spread/pb.py:828:proto_message
/home/chrome-bot/buildbot/build/third_party/twisted_10_2/twisted/spread/pb.py:842:_recvMessage
/home/chrome-bot/buildbot/build/third_party/twisted_10_2/twisted/spread/flavors.py:114:remoteMessageReceived
--- <exception caught here> ---
/home/chrome-bot/buildbot/build/third_party/buildbot_8_4p1/buildbot/process/buildstep.py:176:remote_update
/home/chrome-bot/buildbot/build/third_party/buildbot_8_4p1/buildbot/process/metrics.py:81:wrapper
/home/chrome-bot/buildbot/build/third_party/buildbot_8_4p1/buildbot/process/buildstep.py:362:remoteUpdate
/home/chrome-bot/buildbot/build/third_party/buildbot_8_4p1/buildbot/process/buildstep.py:333:addStdout
/home/chrome-bot/buildbot/build/third_party/buildbot_8_4p1/buildbot/status/logfile.py:458:addStdout
/home/chrome-bot/buildbot/build/third_party/buildbot_8_4p1/buildbot/status/logfile.py:454:addEntry
/home/chrome-bot/buildbot/build/scripts/master/chromium_step.py:868:logChunk
/home/chrome-bot/buildbot/build/scripts/master/chromium_step.py:878:outReceived
/home/chrome-bot/buildbot/build/third_party/buildbot_8_4p1/buildbot/status/logfile.py:458:addStdout
/home/chrome-bot/buildbot/build/third_party/buildbot_8_4p1/buildbot/status/logfile.py:414:addEntry

Bot update failure in win-pgo. Assigning to Infra for further updates.