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-144/2018-04-18-1322/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-144/2018-04-18-1322/samba.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-04-18-1322/samba.stdout
  
The top commit at the time of the failure was:

commit fc473cd28261478cc9c3232b43fc725f0468f8a9
Author: Volker Lendecke <vl at samba.org>
Date:   Mon Apr 16 16:02:42 2018 +0200

    nbt_server: Align integer types
    
    sizeof returns size_t
    
    Signed-off-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Stefan Metzmacher <metze at samba.org>
    
    Autobuild-User(master): Volker Lendecke <vl at samba.org>
    Autobuild-Date(master): Wed Apr 18 00:11:51 CEST 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
UNEXPECTED(failure): samba.tests.samba_tool.user.samba.tests.samba_tool.user.UserCmdTestCase.test_setexpiry(ad_dc_ntvfs:local)
REASON: Exception: Exception: Traceback (most recent call last):
  File "/memdisk/autobuild/fl/b4051571/samba/bin/python/samba/tests/samba_tool/user.py", line 323, in test_setexpiry
    self.assertWithin(expires, twodays, 5, "Ensure account expires is within 5 seconds of the expected time")
  File "/memdisk/autobuild/fl/b4051571/samba/bin/python/samba/tests/samba_tool/base.py", line 125, in assertWithin
    self.assertTrue(((val1 + delta) > val2) and ((val1 - delta) < val2), msg)
AssertionError: Ensure account expires is within 5 seconds of the expected time

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.rpc.samr.passwords.lockout on ncacn_np with (ad_dc_ntvfs) -> 224
samba4.rpc.samr.passwords.pwdlastset on ncacn_np with (ad_dc_ntvfs) -> 202
samba3.smbtorture_s3.vfs_aio_fork(simpleserver).RW2(simpleserver) -> 152
samba4.ldb.ldaps with options -U"$USERNAME%$PASSWORD"(ad_dc_ntvfs)(ad_dc_ntvfs) -> 134
samba4.raw.notify(ad_dc_ntvfs) -> 107
samba4.rpc.samlogon on ncacn_np with (ad_dc_ntvfs) -> 89
samba4.ntvfs.cifs.krb5.base.deny2(ad_dc_ntvfs) -> 58
samba4.base.deny2(ad_dc_ntvfs) -> 57
samba4.ntvfs.cifs.krb5.base.deny1(ad_dc_ntvfs) -> 53
samba4.nbt.winsreplication(ad_dc_ntvfs) -> 53
ERROR: test failed with exit code 1