The following build failed security_AccountsBaseline.py:

https://uberchromegw.corp.google.com/i/chromeos.chrome/builders/x86-alex-tot-chrome-pfq-informational/builds/21148

The error seems to be that /etc/groups had an unexpected "attestation" entry. The test itself is kind of confusing, so I'm not sure what this means. Waiting to see if this is flaky.

09/02 14:12:02.759 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'polkituser'.
09/02 14:12:02.760 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'wayland'.
09/02 14:12:02.760 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'arc-bridge'.
09/02 14:12:02.760 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'proxystate'.
09/02 14:12:02.761 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'goofy'.
09/02 14:12:02.761 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'trunks'.
09/02 14:12:02.761 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'tpm_manager'.
09/02 14:12:02.762 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'volume'.
09/02 14:12:02.762 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'apmanager'.
09/02 14:12:02.762 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'peerd'.
09/02 14:12:02.762 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'dlm'.
09/02 14:12:02.763 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'buffet'.
09/02 14:12:02.763 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'webservd'.
09/02 14:12:02.763 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'arc-camera'.
09/02 14:12:02.764 INFO |security_AccountsB:0097| Ignoring missing passwd entry for 'android-root'.
09/02 14:12:02.764 ERROR|security_AccountsB:0042| Expected members 'root,ipsec,chronos,chaps,wpa' for group 'pkcs11', got 'root,ipsec,chronos,chaps,wpa,attestation'.
09/02 14:12:02.768 INFO |security_AccountsB:0097| Ignoring missing group entry for 'polkituser'.
09/02 14:12:02.768 INFO |security_AccountsB:0097| Ignoring missing group entry for 'wayland'.
09/02 14:12:02.768 INFO |security_AccountsB:0097| Ignoring missing group entry for 'arc-bridge'.
09/02 14:12:02.769 INFO |security_AccountsB:0097| Ignoring missing group entry for 'proxystate'.
09/02 14:12:02.769 INFO |security_AccountsB:0097| Ignoring missing group entry for 'goofy'.
09/02 14:12:02.769 INFO |security_AccountsB:0097| Ignoring missing group entry for 'trunks'.
09/02 14:12:02.770 INFO |security_AccountsB:0097| Ignoring missing group entry for 'tpm_manager'.
09/02 14:12:02.770 INFO |security_AccountsB:0097| Ignoring missing group entry for 'volume'.
09/02 14:12:02.770 INFO |security_AccountsB:0097| Ignoring missing group entry for 'apmanager'.
09/02 14:12:02.771 INFO |security_AccountsB:0097| Ignoring missing group entry for 'peerd'.
09/02 14:12:02.771 INFO |security_AccountsB:0097| Ignoring missing group entry for 'dlm'.
09/02 14:12:02.771 INFO |security_AccountsB:0097| Ignoring missing group entry for 'buffet'.
09/02 14:12:02.772 INFO |security_AccountsB:0097| Ignoring missing group entry for 'webservd'.
09/02 14:12:02.772 INFO |security_AccountsB:0097| Ignoring missing group entry for 'arc-camera'.
09/02 14:12:02.772 INFO |security_AccountsB:0097| Ignoring missing group entry for 'android-root'.
09/02 14:12:02.772 INFO |security_AccountsB:0097| Ignoring missing group entry for 'arc-sensor'.
09/02 14:12:02.773 DEBUG|        base_utils:0185| Running 'mkdir -p /usr/local/autotest/results/default/security_AccountsBaseline/sysinfo/iteration.1/var/spool'
09/02 14:12:02.776 DEBUG|        base_utils:0185| Running 'rsync --no-perms --chmod=ugo+r -a --exclude=autoserv*  /var/spool/crash /usr/local/autotest/results/default/security_AccountsBaseline/sysinfo/iteration.1/var/spool'
09/02 14:12:02.801 DEBUG|        base_utils:0185| Running 'rm -rf /var/spool/crash/*'
09/02 14:12:02.805 DEBUG|        base_utils:0185| Running 'logger "autotest finished iteration /usr/local/autotest/results/default/security_AccountsBaseline/sysinfo/iteration.1"'
09/02 14:12:02.809 WARNI|              test:0606| Autotest caught exception when running test:
Traceback (most recent call last):
  File "/usr/local/autotest/common_lib/test.py", line 600, in _exec
    _call_test_function(self.execute, *p_args, **p_dargs)
  File "/usr/local/autotest/common_lib/test.py", line 804, in _call_test_function
    return func(*args, **dargs)
  File "/usr/local/autotest/common_lib/test.py", line 461, in execute
    dargs)
  File "/usr/local/autotest/common_lib/test.py", line 347, in _call_run_once_with_retry
    postprocess_profiled_run, args, dargs)
  File "/usr/local/autotest/common_lib/test.py", line 376, in _call_run_once
    self.run_once(*args, **dargs)
  File "/usr/local/autotest/tests/security_AccountsBaseline/security_AccountsBaseline.py", line 110, in run_once
    raise error.TestFail('Baseline mismatch.')
TestFail: Baseline mismatch.


Logs: https://pantheon.corp.google.com/storage/browser/chromeos-image-archive/x86-alex-tot-chrome-pfq-informational/R55-8764.0.0-b21148/vm_test_results_1/test_harness/all/SimpleTestVerify/1_autotest_tests/results-39-security_AccountsBaseline/security_AccountsBaseline/debug/?pli=1