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-144/2019-01-28-1248/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-144/2019-01-28-1248/samba-nt4.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2019-01-28-1248/samba-nt4.stdout
  
The top commit at the time of the failure was:

commit b9924839ce6c4f8da56566fb0193a626696ab55b
Author: Andreas Schneider <asn at samba.org>
Date:   Tue Nov 20 08:17:37 2018 +0100

    gitlab-ci: Use artifacts instead of after_script
    
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>
    
    Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
    Autobuild-Date(master): Sat Jan 26 22:16:38 CET 2019 on sn-devel-144

and the last 50 lines of the stdout log were:

[148(833)/578 at 13m11s] samba3.base.openattr(nt4_dc)
[149(834)/578 at 13m12s] samba3.base.properties(nt4_dc)
[150(835)/578 at 13m12s] samba3.base.rename(nt4_dc)
[151(836)/578 at 13m13s] samba3.base.rw1(nt4_dc)
[152(837)/578 at 13m14s] samba3.base.rw1(nt4_dc)
[153(838)/578 at 13m14s] samba3.base.rw1(nt4_dc)
[154(839)/578 at 13m15s] samba3.base.secleak(nt4_dc)
[155(840)/578 at 13m16s] samba3.base.tcon(nt4_dc)
[156(841)/578 at 13m16s] samba3.base.tcondev(nt4_dc)
[157(842)/578 at 13m17s] samba3.base.trans2(nt4_dc)
[158(843)/578 at 13m20s] samba3.base.unlink(nt4_dc)
[159(844)/578 at 13m21s] samba3.base.vuid(nt4_dc)
[160(845)/578 at 13m21s] samba3.base.xcopy(nt4_dc)
[161(846)/578 at 13m21s] samba3.base.samba3error(nt4_dc)
[162(847)/578 at 13m22s] samba3.raw.acls(nt4_dc)
[163(859)/578 at 13m26s] samba3.raw.acls nfs4acl_xattr-simple-40(nt4_dc)
[164(871)/578 at 13m30s] samba3.raw.acls nfs4acl_xattr-special-40(nt4_dc)
[165(883)/578 at 13m34s] samba3.raw.acls nfs4acl_xattr-simple-41(nt4_dc)
[166(895)/578 at 13m37s] samba3.raw.acls nfs4acl_xattr-xdr-40(nt4_dc)
[167(907)/578 at 13m40s] samba3.raw.acls nfs4acl_xattr-xdr-41(nt4_dc)
[168(919)/578 at 13m43s] samba3.raw.chkpath(nt4_dc)
[169(920)/578 at 13m44s] samba3.raw.close(nt4_dc)
[170(921)/578 at 13m45s] samba3.raw.composite(nt4_dc)
[171(925)/578 at 13m47s] samba3.raw.eas(nt4_dc)
[172(926)/578 at 13m48s] samba3.raw.lock(nt4_dc)
[173(939)/578 at 14m22s] samba3.raw.mkdir(nt4_dc)
[174(940)/578 at 14m23s] samba3.raw.mux(nt4_dc)
[175(941)/578 at 14m26s] 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) -> 100
samba3.blackbox.net.local.conf(nt4_dc:local) -> 60
samba3.base.dir2(nt4_dc) -> 52
samba3.raw.lock(nt4_dc) -> 35
samba3.smbtorture_s3.crypt_client.OPLOCK1(nt4_dc) -> 31
samba3.blackbox.smbclient_s3.SMB3.sign (nt4_dc)(nt4_dc) -> 25
samba3.blackbox.smbclient_s3.SMB3.plain (nt4_dc)(nt4_dc) -> 23
samba3.blackbox.smbclient_s3.SMB3.sign (nt4_member) member creds(nt4_member) -> 23
samba3.blackbox.smbclient_s3.SMB3.crypt (nt4_dc)(nt4_dc) -> 22
samba3.blackbox.smbclient_s3.NT1.plain (nt4_member) member creds(nt4_member) -> 22
ERROR: test failed with exit code 1