Two failures that look identical, about 12 hours apart with no relevant CLs in common. Is this a new test flake?

https://luci-milo.appspot.com/buildbot/chromeos/nyan_kitty-paladin/2536
https://luci-milo.appspot.com/buildbot/chromeos/nyan_kitty-paladin/2543



Example failure:

08/07 17:17:58.626 DEBUG|             utils:0212| Running 'mkdir -p /usr/local/autotest/results/default/platform_DebugDaemonGetPerfData/sysinfo/var'
08/07 17:17:58.647 DEBUG|             utils:0212| Running 'rsync --no-perms --chmod=ugo+r -a --safe-links --exclude=/log/**autoserv* /var/log /usr/local/autotest/results/default/platform_DebugDaemonGetPerfData/sysinfo/var'
08/07 17:17:58.697 ERROR|          parallel:0026| child process failed
08/07 17:17:58.705 DEBUG|          parallel:0030| Traceback (most recent call last):
08/07 17:17:58.706 DEBUG|          parallel:0030|   File "/usr/local/autotest/bin/parallel.py", line 18, in fork_start
08/07 17:17:58.707 DEBUG|          parallel:0030|     l()
08/07 17:17:58.707 DEBUG|          parallel:0030|   File "/usr/local/autotest/bin/job.py", line 483, in <lambda>
08/07 17:17:58.707 DEBUG|          parallel:0030|     l = lambda : test.runtest(self, url, tag, args, dargs)
08/07 17:17:58.708 DEBUG|          parallel:0030|   File "/usr/local/autotest/bin/test.py", line 117, in runtest
08/07 17:17:58.709 DEBUG|          parallel:0030|     job.sysinfo.log_after_each_iteration)
08/07 17:17:58.709 DEBUG|          parallel:0030|   File "/usr/local/autotest/common_lib/test.py", line 890, in runtest
08/07 17:17:58.710 DEBUG|          parallel:0030|     mytest._exec(args, dargs)
08/07 17:17:58.710 DEBUG|          parallel:0030|   File "/usr/local/autotest/common_lib/test.py", line 606, in _exec
08/07 17:17:58.711 DEBUG|          parallel:0030|     _call_test_function(self.execute, *p_args, **p_dargs)
08/07 17:17:58.711 DEBUG|          parallel:0030|   File "/usr/local/autotest/common_lib/test.py", line 806, in _call_test_function
08/07 17:17:58.711 DEBUG|          parallel:0030|     return func(*args, **dargs)
08/07 17:17:58.711 DEBUG|          parallel:0030|   File "/usr/local/autotest/common_lib/test.py", line 470, in execute
08/07 17:17:58.712 DEBUG|          parallel:0030|     dargs)
08/07 17:17:58.712 DEBUG|          parallel:0030|   File "/usr/local/autotest/common_lib/test.py", line 347, in _call_run_once_with_retry
08/07 17:17:58.712 DEBUG|          parallel:0030|     postprocess_profiled_run, args, dargs)
08/07 17:17:58.713 DEBUG|          parallel:0030|   File "/usr/local/autotest/common_lib/test.py", line 380, in _call_run_once
08/07 17:17:58.713 DEBUG|          parallel:0030|     self.run_once(*args, **dargs)
08/07 17:17:58.713 DEBUG|          parallel:0030|   File "/usr/local/autotest/tests/platform_DebugDaemonGetPerfData/platform_DebugDaemonGetPerfData.py", line 147, in run_once
08/07 17:17:58.713 DEBUG|          parallel:0030|     self.validate_get_perf_method(duration, num_reps, load_type)
08/07 17:17:58.714 DEBUG|          parallel:0030|   File "/usr/local/autotest/tests/platform_DebugDaemonGetPerfData/platform_DebugDaemonGetPerfData.py", line 80, in validate_get_perf_method
08/07 17:17:58.714 DEBUG|          parallel:0030|     status)
08/07 17:17:58.714 DEBUG|          parallel:0030| TestFail: ('GetPerfOutput() returned status %d', dbus.Int32(1))
08/07 17:17:58.762 INFO |               job:0227| 		ERROR	platform_DebugDaemonGetPerfData	platform_DebugDaemonGetPerfData	timestamp=1502151478	localtime=Aug 07 17:17:58	Unhandled EOFError: 
  Traceback (most recent call last):
    File "/usr/local/autotest/bin/job.py", line 490, in _runtest
      parallel.fork_waitfor(self.resultdir, pid)
    File "/usr/local/autotest/bin/parallel.py", line 84, in fork_waitfor
      _check_for_subprocess_exception(tmp, pid)
    File "/usr/local/autotest/bin/parallel.py", line 60, in _check_for_subprocess_exception
      e = pickle.load(file(ename, 'r'))
    File "/usr/local/lib/python2.7/pickle.py", line 1378, in load
      return Unpickler(file).load()
    File "/usr/local/lib/python2.7/pickle.py", line 858, in load
      dispatch[key](self)
    File "/usr/local/lib/python2.7/pickle.py", line 880, in load_eof
      raise EOFError
  EOFError
08/07 17:17:58.784 INFO |               job:0227| 	END ERROR	platform_DebugDaemonGetPerfData	platform_DebugDaemonGetPerfData	timestamp=1502151478	l