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-144/2018-04-20-0209/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-144/2018-04-20-0209/samba.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-04-20-0209/samba.stdout
  
The top commit at the time of the failure was:

commit 99859479fc6e12b2f74ce2dfa83da56d8b8f3d26
Author: Andreas Schneider <asn at samba.org>
Date:   Tue Apr 17 08:55:23 2018 +0200

    s3:passdb: Do not return OK if we don't have pinfo set up
    
    This prevents a crash in fill_mem_keytab_from_secrets()
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13376
    
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Reviewed-by: Stefan Metzmacher <metze at samba.org>
    
    Autobuild-User(master): Andreas Schneider <asn at cryptomilk.org>
    Autobuild-Date(master): Thu Apr 19 00:32:22 CEST 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

[776(4807)/837 at 1h18m26s] samba4.rpc.samr.large-dc.two(vampire_dc)
[777(4810)/837 at 1h18m36s] samba4.rpc.echo(rodc)
[778(4820)/837 at 1h18m39s] samba4.rpc.echo(rodc:local)
[779(4830)/837 at 1h18m43s] samba4.rpc.echo.testallowed(rodc:local)
[780(4840)/837 at 1h18m46s] samba4.rpc.echo.testdenied(rodc:local)
[781(4850)/837 at 1h18m49s] samba4.blackbox.smbclient(rodc:local)(rodc:local)
[782(4852)/837 at 1h18m50s] samba.tests.samba_tool.rodc(rodc:local)
[783(4861)/837 at 1h19m23s] samba.blackbox.rpcclient_samlogon(rodc:local)
[784(4865)/837 at 1h19m24s] samba.blackbox.rpcclient_samlogon_testallowed(rodc:local)
[785(4869)/837 at 1h19m25s] samba.blackbox.rpcclient_samlogon_testdenied(rodc:local)
[786(4873)/837 at 1h19m25s] samba4.drs.ridalloc_exop.python(vampire_dc)(vampire_dc)
[787(4884)/837 at 1h24m27s] samba4.drs.samba_tool_drs.python(vampire_dc)(vampire_dc:local)
[788(4898)/837 at 1h27m32s] samba4.drs.samba_tool_drs_showrepl.python(vampire_dc)(vampire_dc:local)
[789(4900)/837 at 1h27m35s] samba4.drs.replica_sync.python(vampire_dc)(vampire_dc:local)
[790(4916)/837 at 1h31m18s] samba4.drs.delete_object.python(vampire_dc)(vampire_dc)
[791(4918)/837 at 1h31m27s] samba4.drs.fsmo.python(vampire_dc)(vampire_dc)
[792(4923)/837 at 1h31m43s] samba4.drs.repl_move.python(vampire_dc)(vampire_dc)
[793(4944)/837 at 1h33m39s] samba4.drs.getnc_exop.python(vampire_dc)(vampire_dc)
[794(4956)/837 at 1h34m1s] samba4.drs.getnc_unpriv.python(vampire_dc)(vampire_dc)
[795(4960)/837 at 1h34m9s] samba4.drs.linked_attributes_drs.python(vampire_dc)(vampire_dc)
[796(4963)/837 at 1h34m11s] samba4.drs.link_conflicts.python(vampire_dc)(vampire_dc)
[797(4975)/837 at 1h42m0s] samba4.drs.samba_tool_drs.python(promoted_dc)(promoted_dc:local)
[798(4989)/837 at 1h45m8s] samba4.drs.samba_tool_drs_showrepl.python(promoted_dc)(promoted_dc:local)
[799(4991)/837 at 1h45m11s] samba4.drs.replica_sync.python(promoted_dc)(promoted_dc:local)
UNEXPECTED(error): samba4.drs.replica_sync.python(promoted_dc).replica_sync.DrsReplicaSyncTestCase.test_ReplConflictsRenamedVsNewRemoteWin(promoted_dc:local)
REASON: Exception: Exception: Traceback (most recent call last):
  File "/memdisk/autobuild/fl/b701569/samba/source4/torture/drs/python/replica_sync.py", line 320, in test_ReplConflictsRenamedVsNewRemoteWin
    self.ou2 = self._create_ou(self.ldb_dc2, "OU=Test Remote Rename Conflict")
  File "/memdisk/autobuild/fl/b701569/samba/source4/torture/drs/python/replica_sync.py", line 116, in _create_ou
    samdb.add_ldif(ldif)
  File "bin/python/samba/__init__.py", line 229, in add_ldif
    self.add(msg, controls)
LdbError: (68, 'LDAP error 68 LDAP_ENTRY_ALREADY_EXISTS -  <Entry OU=Test Remote Rename Conflict,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.vlv.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 672
samba4.drs.link_conflicts.python(vampire_dc)(vampire_dc) -> 469
samba4.ldap.rodc_rwdc.python(rodc)(rodc:local) -> 441
samba4.drs.ridalloc_exop.python(vampire_dc)(vampire_dc) -> 302
samba4.rpc.samr.passwords.lockout on ncacn_np with (ad_dc_ntvfs) -> 224
samba4.drs.replica_sync.python(vampire_dc)(vampire_dc:local) -> 223
samba4.rpc.samr.passwords.pwdlastset on ncacn_np with (ad_dc_ntvfs) -> 200
samba4.drs.samba_tool_drs.python(promoted_dc)(promoted_dc:local) -> 188
samba4.drs.samba_tool_drs.python(vampire_dc)(vampire_dc:local) -> 185
samba3.smbtorture_s3.vfs_aio_fork(simpleserver).RW2(simpleserver) -> 137
ERROR: test failed with exit code 1