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-184/2019-07-14-0927/flakey.log

The failure seems to be in the "samba-ad-dc-1" suite, whose build logs are available here:

   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-07-14-0927/samba-ad-dc-1.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-07-14-0927/samba-ad-dc-1.stdout
  
The top commit at the time of the failure was:

commit 5522aa1a4c34ee1a1e81db73cf41594bb10bd989
Author: Michael Adam <obnox at samba.org>
Date:   Sat May 18 11:28:54 2019 +0200

    vfs:glusterfs_fuse: ensure fileids are constant across nodes
    
    Instead of adding a new gluster-specific mode to the fileid module,
    this patches provides a fileid algorithm as part of the glusterfs_fuse
    vfs module. This can not be configured further, simply adding the
    glusterfs_fuse vfs module to the vfs objects configuration will enable
    the new fileid mode.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13972
    
    Signed-off-by: Michael Adam <obnox at samba.org>
    Signed-off-by: Guenther Deschner <gd at samba.org>
    
    Autobuild-User(master): Günther Deschner <gd at samba.org>
    Autobuild-Date(master): Sat Jul 13 22:54:56 UTC 2019 on sn-devel-184

and the last 50 lines of the stdout log were:

[8(29)/295 at 58s] samba3.base.defer_open(ad_dc)
[9(30)/295 at 1m15s] samba3.base.delete(ad_dc)
[10(67)/295 at 1m41s] samba3.base.deny3(ad_dc)
[11(68)/295 at 1m42s] samba3.base.denydos(ad_dc)
[12(69)/295 at 1m43s] samba3.base.dir1(ad_dc)
[13(70)/295 at 1m44s] samba3.base.dir2(ad_dc)
[14(71)/295 at 2m1s] samba3.base.disconnect(ad_dc)
smbtorture 4.12.0pre1-DEVELOPERBUILD
Using seed 1563096413
trying disconnect with async lock
trying open/disconnect
trying disconnect with async lock
(../../source4/torture/basic/disconnect.c:116) Incorrect status NT_STATUS_LOCK_NOT_GRANTED - should be NT_STATUS_OK
trying open/disconnect
trying disconnect with async lock
trying open/disconnect
trying disconnect with async lock
trying open/disconnect
trying disconnect with async lock
trying open/disconnect
trying disconnect with async lock
trying open/disconnect
trying disconnect with async lock
trying open/disconnect
trying disconnect with async lock
trying open/disconnect
trying disconnect with async lock
trying open/disconnect
trying disconnect with async lock
trying open/disconnect
UNEXPECTED(error): samba3.base.disconnect.disconnect(ad_dc)
REASON: Exception: Exception: Unknown error/failure. Missing torture_fail() or torture_assert_*() call?

FAILED (0 failures, 1 errors and 0 unexpected successes in 0 testsuites)

A summary with detailed information can be found in:
  ./bin/ab/summary
TOP 10 slowest tests
samba3.base.delete(ad_dc) -> 26
samba3.base.defer_open(ad_dc) -> 17
samba3.base.dir2(ad_dc) -> 17
samba3.base.createx_access(ad_dc) -> 5
samba3.blackbox.smbspool(ad_dc) -> 3
samba3.blackbox.smbclient_ntlm.plain (ad_dc)(ad_dc) -> 2
samba3.smbtorture_s3.plain.TLDAP(ad_dc) -> 1
samba3.blackbox.smbclient_machine_auth.plain (ad_dc:local)(ad_dc:local) -> 1
samba3.base.deny3(ad_dc) -> 1
samba3.base.denydos(ad_dc) -> 1
ERROR: test failed with exit code 1
Makefile:16: recipe for target 'test' failed