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-144/2018-05-08-0206/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-144/2018-05-08-0206/samba.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-05-08-0206/samba.stdout
  
The top commit at the time of the failure was:

commit 2073635d5818aa3fc844ee40dde0c8ae42ac5abd
Author: Douglas Bagnall <douglas.bagnall at catalyst.net.nz>
Date:   Thu Apr 19 14:13:47 2018 +1200

    traffic: ensure we are using the same division in py 2 and 3
    
    Signed-off-by: Douglas Bagnall <douglas.bagnall at catalyst.net.nz>
    Reviewed-by: Gary Lockyer <gary at catalyst.net.nz>
    
    Autobuild-User(master): Douglas Bagnall <dbagnall at samba.org>
    Autobuild-Date(master): Sat May  5 07:25:13 CEST 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

[782(4813)/843 at 1h17m9s] samba4.rpc.samr.large-dc.two(vampire_dc)
[783(4816)/843 at 1h17m19s] samba4.rpc.echo(rodc)
[784(4826)/843 at 1h17m22s] samba4.rpc.echo(rodc:local)
[785(4836)/843 at 1h17m26s] samba4.rpc.echo.testallowed(rodc:local)
[786(4846)/843 at 1h17m29s] samba4.rpc.echo.testdenied(rodc:local)
[787(4856)/843 at 1h17m33s] samba4.blackbox.smbclient(rodc:local)(rodc:local)
[788(4858)/843 at 1h17m34s] samba.tests.samba_tool.rodc(rodc:local)
[789(4867)/843 at 1h18m5s] samba.blackbox.rpcclient_samlogon(rodc:local)
[790(4871)/843 at 1h18m6s] samba.blackbox.rpcclient_samlogon_testallowed(rodc:local)
[791(4875)/843 at 1h18m6s] samba.blackbox.rpcclient_samlogon_testdenied(rodc:local)
[792(4879)/843 at 1h18m7s] samba4.drs.ridalloc_exop.python(vampire_dc)(vampire_dc)
[793(4890)/843 at 1h23m6s] samba4.drs.samba_tool_drs.python(vampire_dc)(vampire_dc:local)
[794(4904)/843 at 1h26m10s] samba4.drs.samba_tool_drs_showrepl.python(vampire_dc)(vampire_dc:local)
[795(4906)/843 at 1h26m13s] samba4.drs.replica_sync.python(vampire_dc)(vampire_dc:local)
[796(4922)/843 at 1h29m45s] samba4.drs.delete_object.python(vampire_dc)(vampire_dc)
[797(4924)/843 at 1h31m41s] samba4.drs.fsmo.python(vampire_dc)(vampire_dc)
[798(4929)/843 at 1h31m57s] samba4.drs.repl_move.python(vampire_dc)(vampire_dc)
[799(4950)/843 at 1h33m55s] samba4.drs.getnc_exop.python(vampire_dc)(vampire_dc)
[800(4962)/843 at 1h34m17s] samba4.drs.getnc_unpriv.python(vampire_dc)(vampire_dc)
[801(4966)/843 at 1h34m24s] samba4.drs.linked_attributes_drs.python(vampire_dc)(vampire_dc)
[802(4969)/843 at 1h34m27s] samba4.drs.link_conflicts.python(vampire_dc)(vampire_dc)
[803(4981)/843 at 1h42m23s] samba4.drs.samba_tool_drs.python(promoted_dc)(promoted_dc:local)
[804(4995)/843 at 1h45m31s] samba4.drs.samba_tool_drs_showrepl.python(promoted_dc)(promoted_dc:local)
[805(4997)/843 at 1h45m33s] samba4.drs.replica_sync.python(promoted_dc)(promoted_dc:local)
UNEXPECTED(error): samba4.drs.replica_sync.python(promoted_dc).replica_sync.DrsReplicaSyncTestCase.test_ReplConflictsRemoteWin(promoted_dc:local)
REASON: Exception: Exception: Traceback (most recent call last):
  File "/memdisk/autobuild/fl/b3113084/samba/source4/torture/drs/python/replica_sync.py", line 190, in test_ReplConflictsRemoteWin
    self.ou2 = self._create_ou(self.ldb_dc2, "OU=Test Remote Conflict")
  File "/memdisk/autobuild/fl/b3113084/samba/source4/torture/drs/python/replica_sync.py", line 116, in _create_ou
    samdb.add_ldif(ldif)
  File "bin/python/samba/__init__.py", line 230, in add_ldif
    self.add(msg, controls)
LdbError: (68, 'LDAP error 68 LDAP_ENTRY_ALREADY_EXISTS -  <Entry OU=Test Remote 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) -> 677
samba4.drs.link_conflicts.python(vampire_dc)(vampire_dc) -> 476
samba4.ldap.rodc_rwdc.python(rodc)(rodc:local) -> 438
samba4.drs.ridalloc_exop.python(vampire_dc)(vampire_dc) -> 299
samba4.rpc.samr.passwords.lockout on ncacn_np with (ad_dc_ntvfs) -> 224
samba4.drs.replica_sync.python(vampire_dc)(vampire_dc:local) -> 213
samba4.rpc.samr.passwords.pwdlastset on ncacn_np with (ad_dc_ntvfs) -> 199
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) -> 135
ERROR: test failed with exit code 1