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-144/2019-04-19-0116/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-144/2019-04-19-0116/samba-nt4.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2019-04-19-0116/samba-nt4.stdout
  
The top commit at the time of the failure was:

commit f708272350321a7c307f3ad86946de606c0b1377
Author: Christof Schmitt <cs at samba.org>
Date:   Mon Mar 11 16:25:42 2019 -0700

    nsswitch: Fix usage information of test_wbinfo_name_lookup.sh
    
    Signed-off-by: Christof Schmitt <cs at samba.org>
    Reviewed-by: Volker Lendecke <vl at samba.org>
    
    Autobuild-User(master): Christof Schmitt <cs at samba.org>
    Autobuild-Date(master): Thu Apr 18 18:20:26 UTC 2019 on sn-devel-144

and the last 50 lines of the stdout log were:

[156(856)/588 at 14m35s] samba3.base.properties(nt4_dc)
[157(857)/588 at 14m35s] samba3.base.rename(nt4_dc)
[158(858)/588 at 14m36s] samba3.base.rw1(nt4_dc)
[159(859)/588 at 14m37s] samba3.base.rw1(nt4_dc)
[160(860)/588 at 14m37s] samba3.base.rw1(nt4_dc)
[161(861)/588 at 14m38s] samba3.base.secleak(nt4_dc)
[162(862)/588 at 14m39s] samba3.base.tcon(nt4_dc)
[163(863)/588 at 14m40s] samba3.base.tcondev(nt4_dc)
[164(864)/588 at 14m40s] samba3.base.trans2(nt4_dc)
[165(865)/588 at 14m44s] samba3.base.unlink(nt4_dc)
[166(866)/588 at 14m45s] samba3.base.vuid(nt4_dc)
[167(867)/588 at 14m45s] samba3.base.xcopy(nt4_dc)
[168(868)/588 at 14m46s] samba3.base.samba3error(nt4_dc)
[169(869)/588 at 14m46s] samba3.raw.acls(nt4_dc)
[170(881)/588 at 14m51s] samba3.raw.acls nfs4acl_xattr-simple-40(nt4_dc)
[171(893)/588 at 14m57s] samba3.raw.acls nfs4acl_xattr-special-40(nt4_dc)
[172(905)/588 at 15m1s] samba3.raw.acls nfs4acl_xattr-simple-41(nt4_dc)
[173(917)/588 at 15m4s] samba3.raw.acls nfs4acl_xattr-xdr-40(nt4_dc)
[174(929)/588 at 15m7s] samba3.raw.acls nfs4acl_xattr-xdr-41(nt4_dc)
[175(941)/588 at 15m10s] samba3.raw.acls nfs4acl_xattr-nfs-40(nt4_dc)
[176(953)/588 at 15m13s] samba3.raw.acls nfs4acl_xattr-nfs-41(nt4_dc)
[177(965)/588 at 15m16s] samba3.raw.chkpath(nt4_dc)
[178(966)/588 at 15m17s] samba3.raw.close(nt4_dc)
[179(967)/588 at 15m17s] samba3.raw.composite(nt4_dc)
[180(971)/588 at 15m20s] samba3.raw.eas(nt4_dc)
[181(972)/588 at 15m21s] samba3.raw.lock(nt4_dc)
[182(985)/588 at 15m55s] samba3.raw.mkdir(nt4_dc)
[183(986)/588 at 15m55s] samba3.raw.mux(nt4_dc)
[184(987)/588 at 15m58s] samba3.raw.notify(nt4_dc)
TESTING CHANGE NOTIFY COMPLETION FILTERS
Testing mkdir
UNEXPECTED(failure): samba3.raw.notify.mask(nt4_dc)
REASON: Exception: Exception: ../../source4/torture/raw/notify.c:835: notify.nttrans.out.changes[0].action was 2 (0x2), expected 1 (0x1): nchanges=1 action=2 expectedAction=1 filter=0x00000004

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) -> 104
samba3.base.dir2(nt4_dc) -> 66
samba3.blackbox.net.local.conf(nt4_dc:local) -> 62
samba3.raw.lock(nt4_dc) -> 34
samba3.smbtorture_s3.crypt_client.OPLOCK1(nt4_dc) -> 31
samba3.blackbox.smbclient_s3.SMB3.sign (nt4_dc)(nt4_dc) -> 26
samba3.blackbox.smbclient_s3.NT1.crypt (nt4_dc)(nt4_dc) -> 26
samba3.blackbox.smbclient_s3.SMB3.plain (nt4_dc)(nt4_dc) -> 25
samba3.blackbox.smbclient_s3.SMB3.crypt (nt4_dc)(nt4_dc) -> 25
samba3.blackbox.smbclient_s3.SMB3.sign (nt4_member) member creds(nt4_member) -> 25
ERROR: test failed with exit code 1