autobuild[sn-devel-184]: intermittent test failure detected

[autobuild]

The autobuild test system (on sn-devel-184) 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-184/2019-07-17-0423/flakey.log

The failure seems to be in the "samba-ad-dc-6" suite, whose build logs are available here:

   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-07-17-0423/samba-ad-dc-6.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-07-17-0423/samba-ad-dc-6.stdout
  
The top commit at the time of the failure was:

commit c4613521723e3ab9b462d75485a514ca16595226
Author: Noel Power <noel.power at suse.com>
Date:   Wed Jul 10 11:50:18 2019 +0000

    s3/lib/smbconf: clang: 'Value stored during its initialization is never read'
    
    Fixes:
    
    source3/lib/smbconf/smbconf_reg.c:123:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
            WERROR werr = WERR_OK;
                   ^~~~   ~~~~~~~
    source3/lib/smbconf/smbconf_reg.c:178:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
            WERROR werr = WERR_OK;
                   ^~~~   ~~~~~~~
    source3/lib/smbconf/smbconf_reg.c:444:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
            WERROR werr = WERR_OK;
                   ^~~~   ~~~~~~~
    source3/lib/smbconf/smbconf_reg.c:583:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
            WERROR werr = WERR_OK;
                   ^~~~   ~~~~~~~
    source3/lib/smbconf/smbconf_reg.c:712:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
            WERROR werr = WERR_OK;
                   ^~~~   ~~~~~~~
    source3/lib/smbconf/smbconf_reg.c:995:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
            WERROR werr = WERR_OK;
                   ^~~~   ~~~~~~~
    source3/lib/smbconf/smbconf_reg.c:1103:9: warning: Value stored to 'werr' during its initialization is never read <--[clang]
            WERROR werr = WERR_OK;
                   ^~~~   ~~~~~~~
    7 warnings generated.
    
    Signed-off-by: Noel Power <noel.power at suse.com>
    Reviewed-by: Gary Lockyer <gary at catalyst.net.nz>
    
    Autobuild-User(master): Gary Lockyer <gary at samba.org>
    Autobuild-Date(master): Wed Jul 17 00:07:48 UTC 2019 on sn-devel-184

and the last 50 lines of the stdout log were:

msDS-User-Account-Control-Computed = '16'
Failed to bind - LDAP error 49 LDAP_INVALID_CREDENTIALS -  <8009030C: LdapErr: DSID-0C0904DC, comment: AcceptSecurityContext error, data 775, v1db1> <>
Failed to connect to 'ldap://localdc' with backend 'ldap': LDAP error 49 LDAP_INVALID_CREDENTIALS -  <8009030C: LdapErr: DSID-0C0904DC, comment: AcceptSecurityContext error, data 775, v1db1> <>
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
badPwdCount = '3'
lockoutTime = '132078109872029230'
badPasswordTime = '132078109872029230'
logonCount = '0'
lastLogon = '132078109840575090'
lastLogonTimestamp = '132078109771123540'
userAccountControl = '512'
msDS-User-Account-Control-Computed = '16'
Failed to bind - LDAP error 49 LDAP_INVALID_CREDENTIALS -  <8009030C: LdapErr: DSID-0C0904DC, comment: AcceptSecurityContext error, data 775, v1db1> <>
Failed to connect to 'ldap://localdc' with backend 'ldap': LDAP error 49 LDAP_INVALID_CREDENTIALS -  <8009030C: LdapErr: DSID-0C0904DC, comment: AcceptSecurityContext error, data 775, v1db1> <>
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
badPwdCount = '3'
lockoutTime = '132078109872029230'
badPasswordTime = '132078109872029230'
logonCount = '0'
lastLogon = '132078109840575090'
lastLogonTimestamp = '132078109771123540'
userAccountControl = '512'
msDS-User-Account-Control-Computed = '16'
UNEXPECTED(failure): samba4.ldap.password_lockout.python(ad_dc_slowtests).__main__.PasswordTestsWithSleep.test_pso_login_lockout_ntlm(ad_dc_slowtests)
REASON: Exception: Exception: Traceback (most recent call last):
  File "/memdisk/autobuild/fl/b1791832/samba-ad-dc-6/source4/dsdb/tests/python/password_lockout.py", line 1177, in test_pso_login_lockout_ntlm
    self._test_login_lockout(self.lockout1ntlm_creds)
  File "/memdisk/autobuild/fl/b1791832/samba-ad-dc-6/source4/dsdb/tests/python/password_lockout_base.py", line 562, in _test_login_lockout
    msDSUserAccountControlComputed=dsdb.UF_LOCKOUT)
  File "/memdisk/autobuild/fl/b1791832/samba-ad-dc-6/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.vlv.python(ad_dc_slowtests)(ad_dc_slowtests) -> 702
samba4.ldap.confidential_attr.python(ad_dc_slowtests)(ad_dc_slowtests) -> 410
samba4.rpc.samr.passwords.lockout on ncacn_np with (ad_dc_slowtests) -> 244
samba4.rpc.samr.passwords.pwdlastset on ncacn_np with (ad_dc_slowtests) -> 213
samba4.rpc.samlogon on ncacn_np with (ad_dc_slowtests) -> 64
samba4.rpc.samr.passwords on ncacn_np with (ad_dc_slowtests) -> 28
samba4.rpc.samr.passwords.badpwdcount on ncacn_np with (ad_dc_slowtests) -> 27
samba4.rpc.samr.large-dc on ncacn_np with (ad_dc_slowtests) -> 19
samba4.rpc.samr.users on ncacn_np with (ad_dc_slowtests) -> 12
samba4.rpc.samr.users.privileges on ncacn_np with (ad_dc_slowtests) -> 5
ERROR: test failed with exit code 1
Makefile:16: recipe for target 'test' failed