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-144/2018-10-25-1927/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-144/2018-10-25-1927/samba-nt4.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-10-25-1927/samba-nt4.stdout
  
The top commit at the time of the failure was:

commit d3571415469ece5341a330c8987139d0f5749e52
Author: Noel Power <noel.power at suse.com>
Date:   Thu Oct 18 09:49:24 2018 +0100

    CI/Autobuild: Remove samba-none-env-py3 test
    
    We now run a purepython3 none-env test, later when the whole
    build is running under python3 we will resurrect this job
    but as (samba-none-env-py2) for python2
    
    Signed-off-by: Noel Power <noel.power at suse.com>
    Reviewed-by: Andrew Bartlett <abartlet at samba.org>
    
    Autobuild-User(master): Andrew Bartlett <abartlet at samba.org>
    Autobuild-Date(master): Tue Oct 23 09:10:22 CEST 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

[182(1048)/571 at 20m43s] samba3.raw.sfileinfo.bug(nt4_dc)
[183(1048)/571 at 20m43s] samba3.raw.streams(nt4_dc)
[184(1061)/571 at 20m49s] samba3.raw.unlink(nt4_dc)
[185(1064)/571 at 20m50s] samba3.raw.write(nt4_dc)
[186(1068)/571 at 20m52s] samba3.raw.samba3hide(nt4_dc)
[187(1069)/571 at 20m53s] samba3.raw.samba3badpath(nt4_dc)
[188(1070)/571 at 20m53s] samba3.raw.sfileinfo.rename(nt4_dc)
[189(1071)/571 at 20m54s] samba3.raw.session plain(nt4_dc)
[190(1073)/571 at 20m55s] samba3.raw.session enc(nt4_dc)
[191(1075)/571 at 20m55s] samba3.raw.samba3caseinsensitive(nt4_dc)
[192(1076)/571 at 20m56s] samba3.raw.samba3posixtimedlock(nt4_dc)
[193(1077)/571 at 21m1s] samba3.raw.samba3rootdirfid(nt4_dc)
[194(1078)/571 at 21m2s] samba3.raw.sfileinfo.end-of-file(nt4_dc)
[195(1079)/571 at 21m3s] samba3.raw.samba3checkfsp(nt4_dc)
[196(1080)/571 at 21m3s] samba3.raw.samba3closeerr(nt4_dc)
[197(1081)/571 at 21m4s] samba3.raw.samba3oplocklogoff(nt4_dc)
[198(1082)/571 at 21m4s] samba3.raw.samba3badnameblob(nt4_dc)
[199(1083)/571 at 21m5s] samba3.smb2.getinfo(nt4_dc)
[200(1089)/571 at 21m6s] samba3.smb2.lock aio(nt4_dc)
[201(1110)/571 at 21m11s] samba3.smb2.lock(nt4_dc)
[202(1131)/571 at 21m17s] samba3.smb2.read(nt4_dc)
[203(1135)/571 at 21m18s] samba3.smb2.create(nt4_dc)
[204(1148)/571 at 21m20s] samba3.smb2.acls(nt4_dc)
[205(1156)/571 at 21m25s] samba3.smb2.notify(nt4_dc)
TESTING CHANGE NOTIFY ON DIRECTORIES
Testing notify cancel
Testing notify mkdir
Testing notify rmdir
Testing notify mkdir - rmdir - mkdir - rmdir
Testing buffered notify on create of 10 files
Testing notify on unlink for the first file
UNEXPECTED(failure): samba3.smb2.notify.dir(nt4_dc)
REASON: Exception: Exception: (../source4/torture/smb2/notify.c:398) wrong value for notify.smb2.out.num_changes  0x9 should be 0xa

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.raw.notify(nt4_dc) -> 108
samba3.raw.search(nt4_dc) -> 103
samba3.blackbox.net.rpc.conf(nt4_dc) -> 100
samba3.blackbox.net.local.conf(nt4_dc:local) -> 74
samba3.base.dir2(nt4_dc) -> 62
samba3.raw.oplock(nt4_dc) -> 51
samba3.raw.lock(nt4_dc) -> 34
samba3.raw.search(nt4_dc) -> 32
samba3.smbtorture_s3.crypt_client(nt4_dc).OPLOCK1(nt4_dc) -> 30
samba3.blackbox.smbclient_s3.NT1.plain (nt4_dc)(nt4_dc) -> 24
ERROR: test failed with exit code 1