Link to failing step log: http://bit.ly/2g5Uzhh

Excerpt from log:

Traceback (most recent call last):
  File "/b/rr/tmpY2qgkd/rw/checkout/scripts/slave/runtest.py", line 1776, in <module>
    sys.exit(main())
  File "/b/rr/tmpY2qgkd/rw/checkout/scripts/slave/runtest.py", line 1747, in main
    result = _MainLinux(options, args, extra_env)
  File "/b/rr/tmpY2qgkd/rw/checkout/scripts/slave/runtest.py", line 1159, in _MainLinux
    raise chromium_utils.PathNotFound(msg)
common.chromium_utils.PathNotFound: Unable to find /b/rr/tmpY2qgkd/w/src/out/Release/bin/run_tracing_perftests
Command ['/usr/bin/python', u'/b/rr/tmpY2qgkd/rw/checkout/scripts/tools/runit.py', '--show-path', '/usr/bin/python', u'/b/rr/tmpY2qgkd/rw/checkout/scripts/slave/runtest.py', '--target', 'Release', '--xvfb', '--builder-name', u'Android Nexus5 Perf (2)', '--slave-name', u'build14-b1', '--build-number', '4343', '--build-properties', '{"results-url": "https://chromeperf.appspot.com", "buildername": "Android Nexus5 Perf (2)", "perf-id": "android-nexus5", "mastername": "chromium.perf", "buildnumber": 4343, "slavename": "build14-b1", "target_platform": "android"}', '--target', 'Release', '--annotate', 'graphing', '--perf-id', u'android-nexus5', '--perf-dashboard-id', u'tracing_perftests', '--results-url', u'https://chromeperf.appspot.com', '--slave-name', u'build14-b1', '--builder-name', u'Android Nexus5 Perf (2)', '--build-number', '4343', '--log-processor-output-file', '/tmp/tmp3uFmPz', '--test-type', u'tracing_perftests', '--no-xvfb', '--run-python-script', u'/b/rr/tmpY2qgkd/w/src/out/Release/bin/run_tracing_perftests', '--verbose', u'--adb-path', u'src/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb'] returned exit code 1
Traceback (most recent call last):
  File "/b/rr/tmpY2qgkd/w/src/testing/scripts/gtest_perf_test.py", line 81, in <module>
    sys.exit(common.run_script(sys.argv[1:], funcs))
  File "/b/rr/tmpY2qgkd/w/src/testing/scripts/common.py", line 63, in run_script
    return args.func(args)
  File "/b/rr/tmpY2qgkd/w/src/testing/scripts/gtest_perf_test.py", line 59, in main_run
    results = json.load(f)
  File "/usr/lib/python2.7/json/__init__.py", line 290, in load
    **kw)
  File "/usr/lib/python2.7/json/__init__.py", line 338, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python2.7/json/decoder.py", line 366, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python2.7/json/decoder.py", line 384, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded
step returned non-zero exit code: 1
@@@STEP_LOG_LINE@json.output (invalid)@null@@@
@@@STEP_LINK@logdog-->json.output (invalid)@https://luci-logdog.appspot.com/v/?s=chrome%2Fbb%2Fchromium.perf%2FAndroid_Nexus5_Perf__2_%2F4343%2F%2B%2Frecipes%2Fsteps%2Ftracing_perftests%2F0%2Flogs%2Fjson.output__invalid_%2F0@@@
@@@STEP_LOG_END@json.output (invalid)@@@
@@@STEP_FAILURE@@@