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-144/2018-12-23-1837/flakey.log

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

   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-12-23-1837/samba-ad-dc.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-12-23-1837/samba-ad-dc.stdout
  
The top commit at the time of the failure was:

commit ccd4759aaff340321792e3b5acab6bc3c8d8cfbb
Author: Bjoern Jacke <bj at sernet.de>
Date:   Fri Dec 21 06:12:56 2018 -0600

    nss/waf: check for secmethod_table.method_{attrlist,version} for aix >= 5.2
    
    The original commit 02c9b46fab46ab401a3cf6bb74c8260801c41032 was not ported to waf yet.
    
    Signed-off-by: Stefan Metzmacher <metze at samba.org>
    Reviewed-by: Bjoern Jacke <bj at sernet.de>
    
    Autobuild-User(master): Björn Jacke <bj at sernet.de>
    Autobuild-Date(master): Sat Dec 22 06:22:22 CET 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

[81(468)/579 at 7m58s] samba3.raw.session ntlm(ad_dc)
[82(470)/579 at 7m58s] samba3.raw.session krb5(ad_dc)
[83(473)/579 at 8m53s] samba3.raw.samba3caseinsensitive(ad_dc)
[84(474)/579 at 8m54s] samba3.raw.samba3posixtimedlock(ad_dc)
[85(475)/579 at 9m0s] samba3.raw.samba3rootdirfid(ad_dc)
[86(476)/579 at 9m1s] samba3.raw.sfileinfo.end-of-file(ad_dc)
[87(477)/579 at 9m3s] samba3.raw.samba3checkfsp(ad_dc)
[88(478)/579 at 9m4s] samba3.raw.samba3closeerr(ad_dc)
[89(479)/579 at 9m5s] samba3.raw.samba3oplocklogoff(ad_dc)
[90(480)/579 at 9m6s] samba3.raw.samba3badnameblob(ad_dc)
[91(481)/579 at 9m7s] samba3.smb2.getinfo(ad_dc)
[92(487)/579 at 9m11s] samba3.smb2.read(ad_dc)
[93(491)/579 at 9m13s] samba3.smb2.create(ad_dc)
[94(504)/579 at 9m24s] samba3.smb2.twrp(ad_dc)
[95(504)/579 at 9m26s] samba3.smb2.acls(ad_dc)
[96(512)/579 at 9m34s] samba3.smb2.durable-open(ad_dc)
[97(528)/579 at 9m42s] samba3.smb2.durable-v2-open(ad_dc)
[98(538)/579 at 9m47s] samba3.smb2.durable-v2-delay(ad_dc)
[99(539)/579 at 9m47s] samba3.smb2.dir(ad_dc)
[100(546)/579 at 10m33s] samba3.smb2.lease(ad_dc)
[101(546)/579 at 10m51s] samba3.smb2.compound(ad_dc)
[102(559)/579 at 10m59s] samba3.smb2.compound_find(ad_dc)
[103(562)/579 at 11m49s] samba3.smb2.streams(ad_dc)
[104(574)/579 at 11m58s] samba3.smb2.ioctl(ad_dc)
[105(616)/579 at 12m39s] samba3.smb2.rename(ad_dc)
[106(626)/579 at 12m45s] samba3.smb2.sharemode(ad_dc)
[107(628)/579 at 12m47s] samba3.smb2.session ntlm(ad_dc)
[108(636)/579 at 12m49s] samba3.smb2.session krb5(ad_dc)
[109(649)/579 at 14m34s] samba3.smb2.session krb5(ad_member_idmap_rid)
ERROR: Testsuite[samba3.smb2.session krb5(ad_member_idmap_rid)]
REASON: unable to set up environment ad_member_idmap_rid - exiting



FAILED (0 failures, 0 errors and 0 unexpected successes in 1 testsuites)

A summary with detailed information can be found in:
  ./bin/ab/summary
TOP 10 slowest tests
samba3.smb2.session krb5(ad_member_idmap_rid) -> 1545586572
samba3.smb2.session krb5(ad_dc) -> 105
samba3.raw.session krb5(ad_dc) -> 54
samba3.smb2.compound_find(ad_dc) -> 50
samba3.smb2.dir(ad_dc) -> 45
samba3.smb2.ioctl(ad_dc) -> 41
samba3.base.delete(ad_dc) -> 41
samba3.base.dir2(ad_dc) -> 26
samba3.blackbox.smbclient_s3.NT1.plain (ad_member) member creds(ad_member) -> 21
samba3.raw.search(ad_dc) -> 21
ERROR: test failed with exit code 1