Seeing Patch failure om android_nexus7_perf_bisect,

Link to build ::
=================
https://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3108

Link to Log File ::
====================
https://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3108/steps/Patch%20failure/logs/stdio

Error Log ::
=============
@@@STEP_CURSOR@Patch failure@@@
@@@STEP_STARTED@@@
python -u /tmp/tmpcnOxKo.py
in dir /b/build/slave/android_nexus7_perf_bisect/build:
 cmd: ['python', '-u', '/tmp/tmpcnOxKo.py']
 name: Patch failure
 step_test_data: <lambda>(...)
full environment:
 AWS_CREDENTIAL_FILE: /b/build/site_config/.boto
 BOTO_CONFIG: /b/build/site_config/.boto
 BUILDBOT_BLAMELIST: [u'wangxianzhu@chromium.org']
 BUILDBOT_BRANCH: 
 BUILDBOT_BUILDBOTURL: http://build.chromium.org/p/tryserver.chromium.perf/
 BUILDBOT_BUILDERNAME: android_nexus7_perf_bisect
 BUILDBOT_BUILDNUMBER: 3108
 BUILDBOT_CLOBBER: 
 BUILDBOT_GOT_REVISION: None
 BUILDBOT_MASTERNAME: tryserver.chromium.perf
 BUILDBOT_REVISION: 
 BUILDBOT_SCHEDULER: None
 BUILDBOT_SLAVENAME: build103-b4
 CHROME_HEADLESS: 1
 DISPLAY: :0.0
 GIT_USER_AGENT: linux2 git/2.9.2 build103-b4.labs.chromium.org
 HOME: /home/chrome-bot
 LANG: en_US.UTF-8
 LOGNAME: chrome-bot
 PAGER: cat
 PATH: /home/chrome-bot/slavebin:/b/depot_tools:/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin
 PWD: /b/build/slave/android_nexus7_perf_bisect/build
 PYTHONPATH: /b/build/site_config:/b/build/scripts:/b/build/scripts/release:/b/build/third_party:/b/build/third_party/requests_2_10_0:/b/build_internal/site_config:/b/build_internal/symsrc:/b/build/slave:/b/build/third_party/buildbot_slave_8_4:/b/build/third_party/twisted_10_2:
 SHELL: /bin/bash
 USER: chrome-bot

step returned non-zero exit code: 1
@@@STEP_TEXT@Check the bot_update step for details@@@
@@@STEP_FAILURE@@@


--------------------------------------------------------------------------------
started: Tue Jul 26 19:59:19 2016
ended: Tue Jul 26 19:59:19 2016
duration: 0 secs
status: FAILURE
status reason: 

From the blame list, assigning it to the concern owner, pardon me if it has nothing to do with your changes and if possible please assign it to concern owner.
Thank You.