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-144/2019-02-08-0153/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-144/2019-02-08-0153/samba.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2019-02-08-0153/samba.stdout
  
The top commit at the time of the failure was:

commit eaf63f0b845fb766ff243b1a7d0587c9507ab31e
Author: David Disseldorp <ddiss at samba.org>
Date:   Tue Jan 29 12:49:28 2019 +0100

    docs-xml: "cluster addresses" dns registration
    
    Bug 7871 added functionality to register smb.conf "cluster addresses"
    when net ads dns register is called with clustering=yes, but the man
    page was not updated. Add documentation for this behaviour.
    
    Signed-off-by: David Disseldorp <ddiss at samba.org>
    Reviewed-by: Andreas Schneider <asn at samba.org>
    
    Autobuild-User(master): David Disseldorp <ddiss at samba.org>
    Autobuild-Date(master): Thu Feb  7 21:33:15 CET 2019 on sn-devel-144

and the last 50 lines of the stdout log were:

badPwdCount = '3'
lockoutTime = '131940606935561360'
badPasswordTime = '131940606935561360'
logonCount = '4'
lastLogon = '131940606902682150'
lastLogonTimestamp = '131940606810655210'
userAccountControl = '512'
msDS-User-Account-Control-Computed = '16'
Failed to get kerberos credentials (kerberos required): kinit for lockout1krb5 at SAMBA.EXAMPLE.COM failed (Clients credentials have been revoked)

Account locked out: kinit for lockout1krb5 at SAMBA.EXAMPLE.COM failed (Clients credentials have been revoked)

gensec_spnego_create_negTokenInit_step: gssapi_krb5: creating NEG_TOKEN_INIT for ldap/localdc failed (next[(null)]): NT_STATUS_ACCOUNT_LOCKED_OUT
Failed to bind - LDAP client internal error: NT_STATUS_ACCOUNT_LOCKED_OUT
Failed to connect to 'ldap://localdc' with backend 'ldap': LDAP client internal error: NT_STATUS_ACCOUNT_LOCKED_OUT
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
badPwdCount = '3'
lockoutTime = '131940606935561360'
badPasswordTime = '131940606935561360'
logonCount = '4'
lastLogon = '131940606902682150'
lastLogonTimestamp = '131940606810655210'
userAccountControl = '512'
msDS-User-Account-Control-Computed = '16'
UNEXPECTED(failure): samba4.ldap.password_lockout.python(ad_dc_ntvfs).__main__.PasswordTestsWithSleep.test_login_lockout_krb5(ad_dc_ntvfs)
REASON: Exception: Exception: Traceback (most recent call last):
  File "/memdisk/autobuild/fl/b2890486/samba/source4/dsdb/tests/python/password_lockout.py", line 1163, in test_login_lockout_krb5
    self._test_login_lockout(self.lockout1krb5_creds)
  File "/memdisk/autobuild/fl/b2890486/samba/source4/dsdb/tests/python/password_lockout_base.py", line 562, in _test_login_lockout
    msDSUserAccountControlComputed=dsdb.UF_LOCKOUT)
  File "/memdisk/autobuild/fl/b2890486/samba/source4/dsdb/tests/python/password_lockout_base.py", line 180, in _check_account
    self.assertEquals(uinfo5.bad_password_count, effective_bad_password_count)
AssertionError: 0 != 3

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.confidential_attr.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 608
samba4.ldap.rodc_rwdc.python(rodc)(rodc:local) -> 449
samba4.ldap.vlv.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 269
samba4.rpc.samr.passwords.lockout on ncacn_np with (ad_dc_ntvfs) -> 227
samba4.rpc.samr.passwords.pwdlastset on ncacn_np with (ad_dc_ntvfs) -> 201
samba3.smbtorture_s3.vfs_aio_fork(simpleserver).RW2(simpleserver) -> 139
samba4.ldb.ldaps with options -U"$USERNAME%$PASSWORD"(ad_dc_ntvfs)(ad_dc_ntvfs) -> 129
samba4.ldap.secdesc.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 116
samba4.raw.notify(ad_dc_ntvfs) -> 106
samba4.ldap.dirsync.python(ad_dc_ntvfs)(ad_dc_ntvfs) -> 93
ERROR: test failed with exit code 1