autobuild[sn-devel-144]: intermittent test failure detected

[autobuild]

The autobuild test system (on sn-devel-144) has detected an intermittent failing test in 
the current master tree.

The autobuild log of the failure is available here:

   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-04-30-1939/flakey.log

The failure seems to be in the "samba" suite, whose build logs are available here:

   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-04-30-1939/samba.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-04-30-1939/samba.stdout
  
The top commit at the time of the failure was:

commit a23d80547545f1d367ef446d6d7173999ca4e97c
Author: Martin Schwenke <martin at meltin.net>
Date:   Mon Apr 30 12:07:48 2018 +1000

    ctdb-tests: Fix a typo
    
    Signed-off-by: Martin Schwenke <martin at meltin.net>
    Reviewed-by: Amitay Isaacs <amitay at gmail.com>
    
    Autobuild-User(master): Amitay Isaacs <amitay at samba.org>
    Autobuild-Date(master): Mon Apr 30 14:26:43 CEST 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

badPasswordTime = '131695834115749660'
logonCount = '0'
lastLogon = '131695834097903280'
lastLogonTimestamp = '131695834097903280'
userAccountControl = '512'
msDS-User-Account-Control-Computed = '16'
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
badPwdCount = '3'
lockoutTime = '131695834115749660'
badPasswordTime = '131695834115749660'
logonCount = '0'
lastLogon = '131695834097903280'
lastLogonTimestamp = '131695834097903280'
userAccountControl = '512'
msDS-User-Account-Control-Computed = '16'
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
badPwdCount = '3'
lockoutTime = '131695834115749660'
badPasswordTime = '131695834115749660'
logonCount = '0'
lastLogon = '131695834097903280'
lastLogonTimestamp = '131695834097903280'
userAccountControl = '512'
msDS-User-Account-Control-Computed = '16'
UNEXPECTED(failure): samba4.ldap.password_lockout.python(ad_dc_ntvfs).__main__.PasswordTests.test_userPassword_lockout_with_clear_change_ntlm_ldap_lockoutTime(ad_dc_ntvfs)
REASON: Exception: Exception: Traceback (most recent call last):
  File "/memdisk/autobuild/fl/b1743336/samba/source4/dsdb/tests/python/password_lockout.py", line 574, in test_userPassword_lockout_with_clear_change_ntlm_ldap_lockoutTime
    initial_lastlogon_relation='greater')
  File "/memdisk/autobuild/fl/b1743336/samba/source4/dsdb/tests/python/password_lockout.py", line 319, in _test_userPassword_lockout_with_clear_change
    msDSUserAccountControlComputed=dsdb.UF_LOCKOUT)
  File "/memdisk/autobuild/fl/b1743336/samba/source4/dsdb/tests/python/password_lockout_base.py", line 180, in _check_account
    self.assertEquals(uinfo5.bad_password_count, effective_bad_password_count)
AssertionError: 0 != 3

FAILED (1 failures, 0 errors and 0 unexpected successes in 0 testsuites)

A summary with detailed information can be found in:
  ./bin/ab/summary
TOP 10 slowest tests
samba4.ldap.vlv.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 783
samba4.ldap.rodc_rwdc.python(rodc)(rodc:local) -> 437
samba4.rpc.samr.passwords.lockout on ncacn_np with (ad_dc_ntvfs) -> 224
samba4.rpc.samr.passwords.pwdlastset on ncacn_np with (ad_dc_ntvfs) -> 200
samba3.smbtorture_s3.vfs_aio_fork(simpleserver).RW2(simpleserver) -> 137
samba4.ldap.secdesc.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 127
samba4.raw.notify(ad_dc_ntvfs) -> 107
samba4.ldb.ldaps with options -U"$USERNAME%$PASSWORD"(ad_dc_ntvfs)(ad_dc_ntvfs) -> 101
samba4.ldap.dirsync.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 97
samba4.ldap.acl.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 83
ERROR: test failed with exit code 1