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-184/2019-06-17-2226/flakey.log

The failure seems to be in the "samba-nt4" suite, whose build logs are available here:

   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-06-17-2226/samba-nt4.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-06-17-2226/samba-nt4.stdout
  
The top commit at the time of the failure was:

commit fef8ec20d0f591f2e531a649108ca83c5a4fd744
Author: Gary Lockyer <gary at catalyst.net.nz>
Date:   Thu Jun 13 08:49:16 2019 +1200

    lib ldb ldb_key_value: csbuild unused parm ldb_kv
    
    Fixes csbuild error.
    
    Error: COMPILER_WARNING:
    lib/ldb/ldb_key_value/ldb_kv_search.c: scope_hint: In
    function ‘search_func’ lib/ldb/ldb_key_value/ldb_kv_search.c:308:47:
    warning: unused parameter ‘ldb_kv’ [-Wunused-parameter]
    
    Signed-off-by: Gary Lockyer <gary at catalyst.net.nz>
    Reviewed-by: Andreas Schneider <asn at samba.org>
    
    Autobuild-User(master): Andreas Schneider <asn at cryptomilk.org>
    Autobuild-Date(master): Thu Jun 13 08:27:12 UTC 2019 on sn-devel-184

and the last 50 lines of the stdout log were:

[158(860)/591 at 15m49s] samba3.base.rw1(nt4_dc)
[159(861)/591 at 15m50s] samba3.base.rw1(nt4_dc)
[160(862)/591 at 15m50s] samba3.base.rw1(nt4_dc)
[161(863)/591 at 15m51s] samba3.base.secleak(nt4_dc)
[162(864)/591 at 15m52s] samba3.base.tcon(nt4_dc)
[163(865)/591 at 15m53s] samba3.base.tcondev(nt4_dc)
[164(866)/591 at 15m53s] samba3.base.trans2(nt4_dc)
[165(867)/591 at 15m57s] samba3.base.unlink(nt4_dc)
[166(868)/591 at 15m58s] samba3.base.vuid(nt4_dc)
[167(869)/591 at 15m58s] samba3.base.xcopy(nt4_dc)
[168(870)/591 at 15m59s] samba3.base.samba3error(nt4_dc)
[169(871)/591 at 15m59s] samba3.raw.acls(nt4_dc)
[170(883)/591 at 16m3s] samba3.raw.acls nfs4acl_xattr-simple-40(nt4_dc)
[171(895)/591 at 16m6s] samba3.raw.acls nfs4acl_xattr-special-40(nt4_dc)
[172(907)/591 at 16m10s] samba3.raw.acls nfs4acl_xattr-simple-41(nt4_dc)
[173(919)/591 at 16m12s] samba3.raw.acls nfs4acl_xattr-xdr-40(nt4_dc)
[174(931)/591 at 16m15s] samba3.raw.acls nfs4acl_xattr-xdr-41(nt4_dc)
[175(943)/591 at 16m18s] samba3.raw.acls nfs4acl_xattr-nfs-40(nt4_dc)
[176(955)/591 at 16m22s] samba3.raw.acls nfs4acl_xattr-nfs-41(nt4_dc)
[177(967)/591 at 16m25s] samba3.raw.chkpath(nt4_dc)
[178(968)/591 at 16m26s] samba3.raw.close(nt4_dc)
[179(969)/591 at 16m26s] samba3.raw.composite(nt4_dc)
[180(973)/591 at 16m30s] samba3.raw.eas(nt4_dc)
[181(974)/591 at 16m31s] samba3.raw.lock(nt4_dc)
[182(987)/591 at 17m5s] samba3.raw.mkdir(nt4_dc)
[183(988)/591 at 17m6s] samba3.raw.mux(nt4_dc)
[184(989)/591 at 17m9s] samba3.raw.notify(nt4_dc)
TESTING CHANGE NOTIFY COMPLETION FILTERS
Testing mkdir
Testing create file
UNEXPECTED(failure): samba3.raw.notify.mask(nt4_dc)
REASON: Exception: Exception: ../../source4/torture/raw/notify.c:846: notify.nttrans.out.changes[0].action was 2 (0x2), expected 1 (0x1): nchanges=1 action=2 expectedAction=1 filter=0x00000002

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
samba3.blackbox.net.rpc.conf(nt4_dc) -> 132
samba3.blackbox.net.local.conf(nt4_dc:local) -> 80
samba3.base.dir2(nt4_dc) -> 54
samba3.raw.lock(nt4_dc) -> 34
samba3.smbtorture_s3.crypt_client.OPLOCK1(nt4_dc) -> 30
samba3.blackbox.smbclient_s3.SMB3.sign (nt4_member) member creds(nt4_member) -> 29
samba3.base.lock(nt4_dc) -> 28
samba3.blackbox.smbclient_s3.SMB3.plain (nt4_dc)(nt4_dc) -> 28
samba3.blackbox.smbclient_s3.SMB3.plain (nt4_member) member creds(nt4_member) -> 27
samba3.blackbox.smbclient_s3.NT1.sign (nt4_member) member creds(nt4_member) -> 26
ERROR: test failed with exit code 1
Makefile:16: recipe for target 'test' failed