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-144/2018-07-06-1808/flakey.log

The failure seems to be in the "ctdb" suite, whose build logs are available here:

   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-07-06-1808/ctdb.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-07-06-1808/ctdb.stdout
  
The top commit at the time of the failure was:

commit 77be96379bcef56ea580010f1d60fe54e5647ff4
Author: Andreas Schneider <asn at samba.org>
Date:   Fri Jul 6 14:07:37 2018 +0200

    nsswitch: Use a swtich in the wbinfo test to lookup users
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13503
    
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Reviewed-by: Ralph Boehme <slow at samba.org>
    
    Autobuild-User(master): Andreas Schneider <asn at cryptomilk.org>
    Autobuild-Date(master): Fri Jul  6 17:14:44 CEST 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

 PASSED  tests/cunit/cmdline_test_001.sh
 PASSED  tests/cunit/comm_test_001.sh
 PASSED  tests/cunit/comm_test_002.sh
 PASSED  tests/cunit/config_test_001.sh
 PASSED  tests/cunit/config_test_002.sh
 PASSED  tests/cunit/config_test_003.sh
 PASSED  tests/cunit/config_test_004.sh
 PASSED  tests/cunit/config_test_005.sh
 PASSED  tests/cunit/config_test_006.sh
 PASSED  tests/cunit/conf_test_001.sh
 PASSED  tests/cunit/db_hash_test_001.sh
 PASSED  tests/cunit/event_protocol_test_001.sh
 PASSED  tests/cunit/hash_count_test_001.sh
 PASSED  tests/cunit/path_tests_001.sh
 PASSED  tests/cunit/pidfile_test_001.sh
 PASSED  tests/cunit/pkt_read_001.sh
 PASSED  tests/cunit/pkt_write_001.sh
 PASSED  tests/cunit/porting_tests_001.sh
 PASSED  tests/cunit/protocol_test_001.sh
 PASSED  tests/cunit/protocol_test_002.sh
 PASSED  tests/cunit/protocol_test_012.sh
 PASSED  tests/cunit/protocol_test_101.sh
 PASSED  tests/cunit/protocol_test_111.sh
 PASSED  tests/cunit/protocol_test_201.sh
 PASSED  tests/cunit/rb_test_001.sh
 PASSED  tests/cunit/reqid_test_001.sh
 PASSED  tests/cunit/run_event_001.sh
 PASSED  tests/cunit/run_proc_001.sh
 PASSED  tests/cunit/sock_daemon_test_001.sh
 PASSED  tests/cunit/sock_io_test_001.sh
 PASSED  tests/cunit/srvid_test_001.sh
 PASSED  tests/eventd/eventd_001.sh
 PASSED  tests/eventd/eventd_002.sh
 PASSED  tests/eventd/eventd_003.sh
 PASSED  tests/eventd/eventd_004.sh
 PASSED  tests/eventd/eventd_005.sh
 PASSED  tests/eventd/eventd_006.sh
 PASSED  tests/eventd/eventd_007.sh
 PASSED  tests/eventd/eventd_008.sh
 PASSED  tests/eventd/eventd_011.sh
 PASSED  tests/eventd/eventd_012.sh
 PASSED  tests/eventd/eventd_013.sh
 PASSED  tests/eventd/eventd_014.sh
 PASSED  tests/eventd/eventd_021.sh
*FAILED* tests/eventd/eventd_022.sh

44/45 tests passed

Removing TEST_VAR_DIR=/memdisk/autobuild/fl/b2707441/ctdb/ctdb/tests/var
autotest exited with exit status 1