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-144/2018-12-15-1244/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-144/2018-12-15-1244/samba-nt4.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-12-15-1244/samba-nt4.stdout
  
The top commit at the time of the failure was:

commit 8cdfc7bbbde1e3a4a79827bf33cfce49440de0be
Author: Andrew Bartlett <abartlet at samba.org>
Date:   Thu Dec 13 21:02:24 2018 +1300

    travis-ci: Remove hooks for Travis CI (typically used with GitHub)
    
    These will get out of date pretty quickly, so better to remove them now
    that GitLab CI is the documented and supported solution.
    
    This was our first public CI system, used because it is cost-free
    to Open Source projects and integrated with GitHub.
    
    It has served it's purpose now.
    
    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): Fri Dec 14 22:04:20 CET 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

[146(831)/579 at 11m16s] samba3.base.open(nt4_dc)
[147(832)/579 at 11m17s] samba3.base.openattr(nt4_dc)
[148(833)/579 at 11m18s] samba3.base.properties(nt4_dc)
[149(834)/579 at 11m18s] samba3.base.rename(nt4_dc)
[150(835)/579 at 11m18s] samba3.base.rw1(nt4_dc)
[151(836)/579 at 11m19s] samba3.base.rw1(nt4_dc)
[152(837)/579 at 11m20s] samba3.base.rw1(nt4_dc)
[153(838)/579 at 11m20s] samba3.base.secleak(nt4_dc)
[154(839)/579 at 11m21s] samba3.base.tcon(nt4_dc)
[155(840)/579 at 11m21s] samba3.base.tcondev(nt4_dc)
[156(841)/579 at 11m22s] samba3.base.trans2(nt4_dc)
[157(842)/579 at 11m25s] samba3.base.unlink(nt4_dc)
[158(843)/579 at 11m26s] samba3.base.vuid(nt4_dc)
[159(844)/579 at 11m26s] samba3.base.xcopy(nt4_dc)
[160(845)/579 at 11m26s] samba3.base.samba3error(nt4_dc)
[161(846)/579 at 11m27s] samba3.raw.acls(nt4_dc)
[162(858)/579 at 11m30s] samba3.raw.acls nfs4acl_xattr-simple-40(nt4_dc)
[163(870)/579 at 11m33s] samba3.raw.acls nfs4acl_xattr-special-40(nt4_dc)
[164(882)/579 at 11m36s] samba3.raw.acls nfs4acl_xattr-simple-41(nt4_dc)
[165(894)/579 at 11m39s] samba3.raw.acls nfs4acl_xattr-xdr-40(nt4_dc)
[166(906)/579 at 11m42s] samba3.raw.acls nfs4acl_xattr-xdr-41(nt4_dc)
[167(918)/579 at 11m44s] samba3.raw.chkpath(nt4_dc)
[168(919)/579 at 11m45s] samba3.raw.close(nt4_dc)
[169(920)/579 at 11m45s] samba3.raw.composite(nt4_dc)
[170(924)/579 at 11m47s] samba3.raw.eas(nt4_dc)
[171(925)/579 at 11m48s] samba3.raw.lock(nt4_dc)
[172(938)/579 at 12m22s] samba3.raw.mkdir(nt4_dc)
[173(939)/579 at 12m23s] samba3.raw.mux(nt4_dc)
[174(940)/579 at 12m25s] 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) -> 75
samba3.base.dir2(nt4_dc) -> 49
samba3.blackbox.net.local.conf(nt4_dc:local) -> 49
samba3.raw.lock(nt4_dc) -> 35
samba3.smbtorture_s3.crypt_client.OPLOCK1(nt4_dc) -> 30
samba3.base.lock(nt4_dc) -> 20
samba3.blackbox.smbclient_s3.NT1.crypt (nt4_dc)(nt4_dc) -> 20
samba3.blackbox.smbclient_s3.SMB3.sign (nt4_dc)(nt4_dc) -> 20
samba3.blackbox.smbclient_s3.SMB3.sign (nt4_member) member creds(nt4_member) -> 19
samba3.blackbox.smbclient_s3.NT1.sign (nt4_member) member creds(nt4_member) -> 18
ERROR: test failed with exit code 1