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-144/2018-12-12-0149/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-144/2018-12-12-0149/samba.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-12-12-0149/samba.stdout
  
The top commit at the time of the failure was:

commit 8d333f43055daf5e18623f2ad9e379f58ef5f8cd
Author: Noel Power <noel.power at suse.com>
Date:   Thu Dec 6 09:51:59 2018 +0000

    third_party/dnspython: Remove dnspython library from third_party
    
    This version of dnspython isn't python3 compatible and is
    quite old.
    
    Signed-off-by: Noel Power <noel.power at suse.com>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>
    
    Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
    Autobuild-Date(master): Tue Dec 11 23:37:43 CET 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

[750(3977)/855 at 52m5s] samba.tests.py_credentials(vampire_dc)
[751(3985)/855 at 52m8s] samba.tests.py_credentials(promoted_dc)
[752(3993)/855 at 52m42s] samba.tests.emulate.traffic(ad_dc_ntvfs)
[753(3995)/855 at 52m43s] samba.tests.emulate.traffic_packet(ad_dc_ntvfs)
[754(4084)/855 at 53m51s] samba.tests.blackbox.traffic_replay(ad_dc_ntvfs)
[755(4090)/855 at 54m3s] samba.tests.blackbox.traffic_learner(ad_dc_ntvfs)
[756(4092)/855 at 54m4s] samba.tests.blackbox.traffic_summary(ad_dc_ntvfs)
[757(4092)/855 at 54m4s] samba.tests.blackbox.smbcontrol(ad_dc_ntvfs:local)
[758(4094)/855 at 54m6s] samba.tests.blackbox.smbcontrol(promoted_dc:local)
[759(4096)/855 at 54m7s] samba4.ldap.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[760(4135)/855 at 54m19s] samba4.tokengroups.krb5.python(ad_dc_ntvfs)(ad_dc_ntvfs:local)
[761(4145)/855 at 54m28s] samba4.tokengroups.ntlm.python(ad_dc_ntvfs)(ad_dc_ntvfs:local)
[762(4154)/855 at 54m35s] samba4.sam.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[763(4171)/855 at 54m39s] samba4.user_account_control.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[764(4182)/855 at 54m53s] samba4.schemaInfo.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[765(4184)/855 at 54m56s] samba.tests.dsdb_schema_attributes(ad_dc_ntvfs:local)
[766(4190)/855 at 55m11s] samba4.urgent_replication.python(ad_dc_ntvfs)(ad_dc_ntvfs:local)
[767(4198)/855 at 55m13s] samba4.ldap.dirsync.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[768(4222)/855 at 56m46s] samba4.ldap.match_rules.python(ad_dc_ntvfs)
[769(4256)/855 at 57m4s] samba4.ldap.notification.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[770(4259)/855 at 57m13s] samba4.ldap.sites.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[771(4270)/855 at 57m19s] samba4.ldap.sort.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[772(4277)/855 at 57m24s] samba4.ldap.vlv.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[773(4292)/855 at 1h1m34s] samba4.ldap.linked_attributes.python(ad_dc_ntvfs)(ad_dc_ntvfs:local)
[774(4312)/855 at 1h1m39s] samba4.ldap.rodc.python(rodc)(rodc)
[775(4318)/855 at 1h1m43s] samba4.ldap.rodc_rwdc.python(rodc)(rodc:local)
[776(4338)/855 at 1h9m25s] samba4.drs.replica_sync_rodc.python(rodc)(rodc:local)
[777(4340)/855 at 1h9m33s] samba4.ldap.passwordsettings.python(ad_dc_ntvfs)
[778(4352)/855 at 1h10m11s] samba4.ldap_schema.python(ad_dc_ntvfs)(ad_dc_ntvfs)
[779(4378)/855 at 1h13m14s] samba4.ldap.possibleInferiors.python(ad_dc_ntvfs)(ad_dc_ntvfs)
UNEXPECTED(failure): samba4.ldap.possibleInferiors.python(ad_dc_ntvfs).objectClass.friendlyCountry(ad_dc_ntvfs)
REASON: Exception: Exception: Returned incorrect list for objectclass friendlyCountry
search:      ['locality', 'organization', 'organizationalUnit', 'physicalLocation'

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) -> 462
samba4.ldap.vlv.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 249
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.ldap_schema.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 183
samba3.smbtorture_s3.vfs_aio_fork(simpleserver).RW2(simpleserver) -> 135
samba4.ldb.ldaps with options -U"$USERNAME%$PASSWORD"(ad_dc_ntvfs)(ad_dc_ntvfs) -> 126
samba4.raw.notify(ad_dc_ntvfs) -> 106
samba4.ldap.dirsync.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 92
samba.tests.emulate.traffic_packet(ad_dc_ntvfs) -> 68
ERROR: test failed with exit code 1