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-144/2018-08-27-1816/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-144/2018-08-27-1816/ctdb.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-08-27-1816/ctdb.stdout
  
The top commit at the time of the failure was:

commit c833ec4c9349eec1d71de9a1fc21fbbc60f00829
Author: Andrew Bartlett <abartlet at samba.org>
Date:   Mon Aug 27 13:34:56 2018 +1200

    travis-ci: Add python3-crypto to package list
    
    Signed-off-by: Andrew Bartlett <abartlet at samba.org>
    Reviewed-by: Gary Lockyer <gary at catalyst.net.nz>
    
    Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
    Autobuild-Date(master): Mon Aug 27 12:00:11 CEST 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

 PASSED  tests/tool/ctdb.getreclock.002.sh
 PASSED  tests/tool/ctdb.getvar.001.sh
 PASSED  tests/tool/ctdb.getvar.002.sh
 PASSED  tests/tool/ctdb.ifaces.001.sh
 PASSED  tests/tool/ctdb.ip.001.sh
 PASSED  tests/tool/ctdb.ip.002.sh
 PASSED  tests/tool/ctdb.ip.003.sh
 PASSED  tests/tool/ctdb.ip.004.sh
 PASSED  tests/tool/ctdb.ip.005.sh
 PASSED  tests/tool/ctdb.ip.006.sh
 PASSED  tests/tool/ctdb.ip.007.sh
 PASSED  tests/tool/ctdb.ipinfo.001.sh
 PASSED  tests/tool/ctdb.ipinfo.002.sh
 PASSED  tests/tool/ctdb.ipinfo.003.sh
 PASSED  tests/tool/ctdb.listnodes.001.sh
 PASSED  tests/tool/ctdb.listnodes.002.sh
 PASSED  tests/tool/ctdb.listvars.001.sh
 PASSED  tests/tool/ctdb.lvs.001.sh
 PASSED  tests/tool/ctdb.lvs.002.sh
 PASSED  tests/tool/ctdb.lvs.003.sh
 PASSED  tests/tool/ctdb.lvs.004.sh
 PASSED  tests/tool/ctdb.lvs.005.sh
 PASSED  tests/tool/ctdb.lvs.006.sh
 PASSED  tests/tool/ctdb.lvs.007.sh
 PASSED  tests/tool/ctdb.lvs.008.sh
 PASSED  tests/tool/ctdb.natgw.001.sh
 PASSED  tests/tool/ctdb.natgw.002.sh
 PASSED  tests/tool/ctdb.natgw.003.sh
 PASSED  tests/tool/ctdb.natgw.004.sh
 PASSED  tests/tool/ctdb.natgw.005.sh
 PASSED  tests/tool/ctdb.natgw.006.sh
 PASSED  tests/tool/ctdb.natgw.007.sh
 PASSED  tests/tool/ctdb.natgw.008.sh
 PASSED  tests/tool/ctdb.nodestatus.001.sh
 PASSED  tests/tool/ctdb.nodestatus.002.sh
 PASSED  tests/tool/ctdb.nodestatus.003.sh
 PASSED  tests/tool/ctdb.nodestatus.004.sh
 PASSED  tests/tool/ctdb.nodestatus.005.sh
 PASSED  tests/tool/ctdb.nodestatus.006.sh
 PASSED  tests/tool/ctdb.pdelete.001.sh
 PASSED  tests/tool/ctdb.ping.001.sh
 PASSED  tests/tool/ctdb.pnn.001.sh
 PASSED  tests/tool/ctdb.process-exists.001.sh
 PASSED  tests/tool/ctdb.process-exists.002.sh
*FAILED* tests/tool/ctdb.process-exists.003.sh

422/423 tests passed

Removing TEST_VAR_DIR=/memdisk/autobuild/fl/b3252419/ctdb/ctdb/tests/var
autotest exited with exit status 1