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-144/2019-01-12-1359/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-144/2019-01-12-1359/samba.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2019-01-12-1359/samba.stdout
  
The top commit at the time of the failure was:

commit e61f9406de17a037106ce5f81feb85a8b477a986
Author: Stefan Metzmacher <metze at samba.org>
Date:   Fri Dec 14 13:36:39 2018 +0100

    selftest:Samba4: run fl2003dc without security context multiplexing
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=7113
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=11892
    
    Signed-off-by: Stefan Metzmacher <metze at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>
    
    Autobuild-User(master): Jeremy Allison <jra at samba.org>
    Autobuild-Date(master): Sat Jan 12 06:25:37 CET 2019 on sn-devel-144

and the last 50 lines of the stdout log were:

[777(4622)/853 at 1h11m45s] samba4.ldap.secdesc.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[778(4705)/853 at 1h13m42s] samba4.ldap.acl.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[779(4758)/853 at 1h15m5s] samba4.ldap.passwords.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[780(4776)/853 at 1h15m28s] samba4.ldap.confidential_attr.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[781(4790)/853 at 1h21m23s] samba4.ldap.password_lockout.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[782(4814)/853 at 1h24m35s] samba4.tombstone_reanimation.python(ad_dc_ntvfs)
[783(4826)/853 at 1h24m42s] samba.tests.upgradeprovisionneeddc(ad_dc_ntvfs:local)
[784(4837)/853 at 1h24m44s] samba4.deletetest.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[785(4841)/853 at 1h24m46s] samba4.blackbox.spn.py(ad_dc_ntvfs:local)(ad_dc_ntvfs:local)
[786(4852)/853 at 1h24m51s] samba4.rpc.samr.large-dc.one(vampire_dc)
[787(4855)/853 at 1h25m0s] samba4.rpc.samr.large-dc.two(vampire_dc)
[788(4858)/853 at 1h25m9s] samba4.rpc.echo(rodc)
[789(4868)/853 at 1h25m12s] samba4.rpc.echo(rodc:local)
[790(4878)/853 at 1h25m16s] samba4.rpc.echo.testallowed(rodc:local)
[791(4888)/853 at 1h25m19s] samba4.rpc.echo.testdenied(rodc:local)
[792(4898)/853 at 1h25m23s] samba4.blackbox.smbclient(rodc:local)(rodc:local)
[793(4900)/853 at 1h25m24s] samba.tests.samba_tool.rodc(rodc:local)
[794(4909)/853 at 1h25m56s] samba.blackbox.rpcclient_samlogon(rodc:local)
[795(4913)/853 at 1h25m56s] samba.blackbox.rpcclient_samlogon_testallowed(rodc:local)
[796(4917)/853 at 1h25m57s] samba.blackbox.rpcclient_samlogon_testdenied(rodc:local)
[797(4921)/853 at 1h25m58s] samba4.drs.ridalloc_exop.python(vampire_dc)(vampire_dc)
[798(4932)/853 at 1h31m29s] samba4.drs.samba_tool_drs.python(vampire_dc)(vampire_dc:local)
[799(4946)/853 at 1h34m55s] samba4.drs.samba_tool_drs_showrepl.python(vampire_dc)(vampire_dc:local)
[800(4950)/853 at 1h35m9s] samba4.drs.replica_sync.python(vampire_dc)(vampire_dc:local)
UNEXPECTED(error): samba4.drs.replica_sync.python(vampire_dc).replica_sync.DrsReplicaSyncTestCase.test_ReplConflictsRemoteWin_with_child(vampire_dc:local)
REASON: Exception: Exception: Traceback (most recent call last):
  File "/memdisk/autobuild/fl/b1914949/samba/source4/torture/drs/python/replica_sync.py", line 278, in test_ReplConflictsRemoteWin_with_child
    self.ou2 = self._create_ou(self.ldb_dc2, "OU=Test Parent Remote Conflict")
  File "/memdisk/autobuild/fl/b1914949/samba/source4/torture/drs/python/replica_sync.py", line 126, in _create_ou
    samdb.add_ldif(ldif)
  File "bin/python/samba/__init__.py", line 230, in add_ldif
    self.add(msg, controls)
_ldb.LdbError: (68, 'LDAP error 68 LDAP_ENTRY_ALREADY_EXISTS -  <Entry OU=Test Parent Remote Conflict,OU=replica_sync2391998,DC=samba,DC=example,DC=com already exists> <>')

FAILED (0 failures, 1 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.rodc_rwdc.python(rodc)(rodc:local) -> 463
samba4.ldap.confidential_attr.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 355
samba4.drs.ridalloc_exop.python(vampire_dc)(vampire_dc) -> 331
samba4.ldap.vlv.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 279
samba4.rpc.samr.passwords.lockout on ncacn_np with (ad_dc_ntvfs) -> 226
samba4.drs.samba_tool_drs.python(vampire_dc)(vampire_dc:local) -> 206
samba4.rpc.samr.passwords.pwdlastset on ncacn_np with (ad_dc_ntvfs) -> 200
samba4.ldap.password_lockout.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 191
samba3.smbtorture_s3.vfs_aio_fork(simpleserver).RW2(simpleserver) -> 137
samba4.ldb.ldaps with options -U"$USERNAME%$PASSWORD"(ad_dc_ntvfs)(ad_dc_ntvfs) -> 120
ERROR: test failed with exit code 1