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-144/2018-07-11-0040/flakey.log

The failure seems to be in the "samba-ad-dc-2" suite, whose build logs are available here:

   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-07-11-0040/samba-ad-dc-2.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-07-11-0040/samba-ad-dc-2.stdout
  
The top commit at the time of the failure was:

commit 621349d559053e86064d2502d114d107914c189f
Author: Ralph Boehme <slow at samba.org>
Date:   Wed Mar 15 13:38:19 2017 +0100

    s3/rpc_server: Character Encode Spotlight Queries
    
    Fix path escaping in Spotlight so paths with spaces or special
    characters can be properly matched to tracker paths.
    
    Bug: https://bugzilla.samba.org/show_bug.cgi?id=12688
    
    Based-on-a-patch-from: Mike M Pestorich <mmpestorich at gmail.com>
    (similar to github.com/netatalk/netatalk/commit/90aa43d)
    
    Signed-off-by: Ralph Boehme <slow at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>
    
    Autobuild-User(master): Jeremy Allison <jra at samba.org>
    Autobuild-Date(master): Tue Jul 10 23:17:20 CEST 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

[72(521)/99 at 2m21s] samba.wbinfo_simple.online-status.domain=$DOMAIN(chgdcpass:local)
[73(522)/99 at 2m21s] samba.wbinfo_simple.domain-users(chgdcpass:local)
[74(523)/99 at 2m21s] samba.wbinfo_simple.domain-groups(chgdcpass:local)
[75(524)/99 at 2m22s] samba.wbinfo_simple.name-to-sid=$DC_USERNAME(chgdcpass:local)
[76(525)/99 at 2m22s] samba.wbinfo_simple.name-to-sid=$DOMAIN/$DC_USERNAME(chgdcpass:local)
[77(526)/99 at 2m22s] samba.wbinfo_simple.user-info=$DOMAIN/$DC_USERNAME(chgdcpass:local)
[78(527)/99 at 2m22s] samba.wbinfo_simple.user-groups=$DOMAIN/$DC_USERNAME(chgdcpass:local)
[79(528)/99 at 2m22s] samba.wbinfo_simple.authenticate=$DOMAIN/$DC_USERNAME%$DC_PASSWORD(chgdcpass:local)
[80(529)/99 at 2m22s] samba.wbinfo_simple.allocate-uid(chgdcpass:local)
[81(530)/99 at 2m22s] samba.wbinfo_simple.allocate-gid(chgdcpass:local)
[82(531)/99 at 2m22s] samba.wbinfo_sids2xids.(chgdcpass:local)(chgdcpass:local)
[83(532)/99 at 2m31s] samba.ntlm_auth.diagnostics(chgdcpass:local)(chgdcpass:local)
[84(533)/99 at 2m31s] samba.ntlm_auth.(chgdcpass:local)(chgdcpass:local)
[85(552)/99 at 2m33s] samba.tests.samba_tool.fsmo(fl2000dc:local)
[86(553)/99 at 2m34s] samba.tests.samba_tool.edit(fl2000dc:local)
[87(556)/99 at 2m35s] samba.tests.samba_tool.user_check_password_script(chgdcpass:local)
[88(557)/99 at 2m38s] samba.tests.samba_tool.sites(chgdcpass:local)
[89(560)/99 at 2m43s] samba.tests.samba_tool.dnscmd(chgdcpass:local)
[90(574)/99 at 6m41s] samba.tests.dcerpc.raw_protocol(chgdcpass)
[91(692)/99 at 7m28s] samba.tests.encrypted_secrets(fl2000dc:local)
[92(694)/99 at 7m29s] samba4.ldap_schema.python(fl2000dc)(fl2000dc)
[93(720)/99 at 7m51s] samba4.ldap.possibleInferiors.python(fl2000dc)(fl2000dc)
[94(962)/99 at 7m52s] samba4.ldap.secdesc.python(fl2000dc)(fl2000dc)
[95(1045)/99 at 9m29s] samba4.ldap.acl.python(fl2000dc)(fl2000dc)
[96(1097)/99 at 10m30s] samba4.drs.repl_schema.python(vampire_2000_dc)(vampire_2000_dc)
[97(1106)/99 at 11m42s] samba.tests.blackbox.samba_dnsupdate(chgdcpass:local)
ERROR: Error while removing site ABCDEFGHIJKLMNOPQRSTUVWXYZ, error: SiteNotFoundException: Site ABCDEFGHIJKLMNOPQRSTUVWXYZ does not exist
Site ABCDEFGHIJKLMNOPQRSTUVWXYZ created !
UNEXPECTED(failure): samba.tests.blackbox.samba_dnsupdate.samba.tests.blackbox.samba_dnsupdate.SambaDnsUpdateTests.test_add_new_uncovered_site(chgdcpass:local)
REASON: Exception: Exception: Traceback (most recent call last):
  File "bin/python/samba/tests/blackbox/samba_dnsupdate.py", line 101, in test_add_new_uncovered_site
    self.assertTrue("No DNS updates needed" in out, out)
AssertionError: IPs: ['fd00::5357:5f20'

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
samba.tests.samba_tool.dnscmd(chgdcpass:local) -> 239
samba4.ldap.secdesc.python(fl2000dc)(fl2000dc) -> 97
samba4.ldap.acl.python(fl2000dc)(fl2000dc) -> 62
samba.tests.dcerpc.raw_protocol(chgdcpass) -> 47
samba4.drs.repl_schema.python(vampire_2000_dc)(vampire_2000_dc) -> 42
samba4.ldap_schema.python(fl2000dc)(fl2000dc) -> 22
samba4.net.api.become.dc(fl2000dc) -> 13
samba4.blackbox.kinit(fl2000dc:local)(fl2000dc:local) -> 9
samba.wbinfo_sids2xids.(chgdcpass:local)(chgdcpass:local) -> 8
samba4.rpc.pac on ncacn_np(fl2000dc) -> 8
ERROR: test failed with exit code 1