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-144/2019-01-06-0056/flakey.log

The failure seems to be in the "samba-none-env" suite, whose build logs are available here:

   https://git.samba.org/autobuild.flakey.sn-devel-144/2019-01-06-0056/samba-none-env.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2019-01-06-0056/samba-none-env.stdout
  
The top commit at the time of the failure was:

commit b7d350b45bc032bf1b61f0184500d068631b7329
Author: Bjoern Jacke <bj at sernet.de>
Date:   Wed Nov 28 04:38:44 2018 -0600

    s3:smbd: Fix build on AIX
    
    AIX makes a define of ip_len in netinet/ip.h (sic!)
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13731
    
    Signed-off-by: Bjoern Jacke <bj at sernet.de>
    Reviewed-by: Andreas Schneider <asn at samba.org>
    
    Autobuild-User(master): Andreas Schneider <asn at cryptomilk.org>
    Autobuild-Date(master): Fri Jan  4 16:29:50 CET 2019 on sn-devel-144

and the last 50 lines of the stdout log were:

[182(3116)/218 at 18m37s] pidl.samba3-srv
[183(3117)/218 at 18m37s] pidl.tdr
[184(3123)/218 at 18m37s] pidl.test_util
[185(3129)/218 at 18m37s] pidl.typelist
[186(3185)/218 at 18m37s] pidl.util
[187(3257)/218 at 18m38s] pidl.wireshark-conf
[188(3306)/218 at 18m38s] pidl.wireshark-ndr
[189(3346)/218 at 18m38s] tdb.python
[190(3400)/218 at 18m38s] samba.tests.dsdb_lock
[191(3407)/218 at 19m49s] samba.tests.samba_tool.visualize
[192(3418)/218 at 19m52s] samba.tests.samba_tool.provision_password_check
[193(3422)/218 at 20m0s] samba.tests.samba_tool.help
[194(3423)/218 at 20m56s] samba.tests.domain_backup_offline
[195(3427)/218 at 22m17s] samba.tests.lsa_string
[196(3431)/218 at 22m18s] samba.tests.loadparm
[197(3434)/218 at 22m18s] samba4.blackbox.samba3dump
[198(3435)/218 at 22m18s] samba4.blackbox.upgrade
[199(3443)/218 at 22m44s] samba4.blackbox.provision.py
[200(3450)/218 at 23m31s] samba4.blackbox.supported_features
[201(3456)/218 at 23m40s] samba4.blackbox.start_backup
[202(3459)/218 at 23m48s] samba4.blackbox.upgradeprovision.current
[203(3466)/218 at 24m53s] samba4.blackbox.setpassword.py
[204(3472)/218 at 25m4s] samba4.blackbox.newuser.py
[205(3483)/218 at 25m16s] samba4.blackbox.group.py
[206(3512)/218 at 25m36s] samba4.blackbox.provision-backend
[207(3516)/218 at 25m44s] samba4.blackbox.renamedc.sh
[208(3527)/218 at 26m6s] samba4.dsdb.samdb.ldb_modules.unique_object_sids
[209(3533)/218 at 26m6s] samba4.dsdb.samdb.ldb_modules.encrypted_secrets.tdb
[210(3544)/218 at 26m6s] samba4.dsdb.samdb.ldb_modules.encrypted_secrets.mdb
[211(3555)/218 at 26m7s] lib.audit_logging.audit_logging
UNEXPECTED(failure): lib.audit_logging.audit_logging.test_audit_get_timestamp(none)
REASON: Exception: Exception: difftime(after, actual) >= 0
../../lib/audit_logging/tests/audit_logging_test.c:827: error: Failure!

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.docs -> 295
samba4.blackbox.upgradeprovision.alpha13 -> 120
samba4.blackbox.upgradeprovision.release-4-0-0 -> 112
samba4.blackbox.schemaupgrade -> 103
samba.tests.domain_backup_offline -> 81
samba.tests.dsdb_lock -> 71
samba4.blackbox.dbcheck.release-4-1-0rc3 -> 68
samba4.blackbox.dbcheck.release-4-0-0 -> 66
samba4.blackbox.upgradeprovision.current -> 65
samba.tests.samba_tool.help -> 56
ERROR: test failed with exit code 1