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-144/2018-07-28-1946/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-144/2018-07-28-1946/samba.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-07-28-1946/samba.stdout
  
The top commit at the time of the failure was:

commit a44e6987b1e469ae202777cd575fd81c19e1ac6c
Author: Martin Schwenke <martin at meltin.net>
Date:   Thu Jul 12 17:38:38 2018 +1000

    ctdb-docs: Replace obsolete reference to CTDB_DEBUG_HUNG_SCRIPT option
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13546
    
    Signed-off-by: Martin Schwenke <martin at meltin.net>
    Reviewed-by: Amitay Isaacs <amitay at gmail.com>
    
    Autobuild-User(master): Martin Schwenke <martins at samba.org>
    Autobuild-Date(master): Sat Jul 28 07:26:24 CEST 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

[815(5032)/897 at 1h16m54s] samba4.rpc.echo(rodc)
[816(5042)/897 at 1h16m58s] samba4.rpc.echo(rodc:local)
[817(5052)/897 at 1h17m3s] samba4.rpc.echo.testallowed(rodc:local)
[818(5062)/897 at 1h17m6s] samba4.rpc.echo.testdenied(rodc:local)
[819(5072)/897 at 1h17m9s] samba4.blackbox.smbclient(rodc:local)(rodc:local)
[820(5074)/897 at 1h17m10s] samba4.rpc.echo(restoredc)
[821(5084)/897 at 1h17m13s] samba4.rpc.echo(restoredc:local)
[822(5094)/897 at 1h17m17s] samba4.rpc.echo.testallowed(restoredc:local)
[823(5104)/897 at 1h17m20s] samba4.rpc.echo.testdenied(restoredc:local)
[824(5114)/897 at 1h17m23s] samba4.blackbox.smbclient(restoredc:local)(restoredc:local)
[825(5116)/897 at 1h17m24s] samba4.rpc.echo(renamedc)
[826(5126)/897 at 1h17m27s] samba4.rpc.echo(renamedc:local)
[827(5136)/897 at 1h17m31s] samba4.rpc.echo.testallowed(renamedc:local)
[828(5146)/897 at 1h17m34s] samba4.rpc.echo.testdenied(renamedc:local)
[829(5156)/897 at 1h17m38s] samba4.blackbox.smbclient(renamedc:local)(renamedc:local)
[830(5158)/897 at 1h17m38s] samba4.rpc.echo(labdc)
[831(5168)/897 at 1h17m42s] samba4.rpc.echo(labdc:local)
[832(5178)/897 at 1h17m45s] samba4.rpc.echo.testallowed(labdc:local)
[833(5188)/897 at 1h17m46s] samba4.rpc.echo.testdenied(labdc:local)
[834(5198)/897 at 1h17m46s] samba4.blackbox.smbclient(labdc:local)(labdc:local)
[835(5200)/897 at 1h17m46s] samba.tests.samba_tool.rodc(rodc:local)
[836(5209)/897 at 1h18m15s] samba.blackbox.rpcclient_samlogon(rodc:local)
[837(5213)/897 at 1h18m16s] samba.blackbox.rpcclient_samlogon_testallowed(rodc:local)
[838(5217)/897 at 1h18m16s] samba.blackbox.rpcclient_samlogon_testdenied(rodc:local)
[839(5221)/897 at 1h18m17s] samba4.drs.ridalloc_exop.python(vampire_dc)(vampire_dc)
[840(5232)/897 at 1h23m36s] samba4.drs.samba_tool_drs.python(vampire_dc)(vampire_dc:local)
[841(5246)/897 at 1h26m52s] samba4.drs.samba_tool_drs_showrepl.python(vampire_dc)(vampire_dc:local)
Good, failed as expected after 0 rounds: '/memdisk/autobuild/fl/b2396151/samba/bin/samba-tool drs showrepl --summary -v --color=yes localvampiredc -USAMBADOMAIN/Administrator%locDCpass1'
UNEXPECTED(failure): samba4.drs.samba_tool_drs_showrepl.python(vampire_dc).samba_tool_drs_showrepl.SambaToolDrsShowReplTests.test_samba_tool_showrepl_summary_forced_failure(vampire_dc:local)
REASON: Exception: Exception: Traceback (most recent call last):
  File "/memdisk/autobuild/fl/b2396151/samba/source4/torture/drs/python/samba_tool_drs_showrepl.py", line 314, in test_samba_tool_showrepl_summary_forced_failure
    self.assertIn('There are failing connections', e.stdout)
AssertionError: 'There are failing connections' not found in ''

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.rodc_rwdc.python(rodc)(rodc:local) -> 444
samba4.drs.ridalloc_exop.python(vampire_dc)(vampire_dc) -> 318
samba4.ldap.vlv.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 230
samba4.rpc.samr.passwords.lockout on ncacn_np with (ad_dc_ntvfs) -> 226
samba4.rpc.samr.passwords.pwdlastset on ncacn_np with (ad_dc_ntvfs) -> 200
samba4.drs.samba_tool_drs.python(vampire_dc)(vampire_dc:local) -> 197
samba4.ldap.password_lockout.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 167
samba3.smbtorture_s3.vfs_aio_fork(simpleserver).RW2(simpleserver) -> 135
samba4.ldap.secdesc.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 114
samba4.raw.notify(ad_dc_ntvfs) -> 107
ERROR: test failed with exit code 1