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-144/2019-04-17-0042/flakey.log

The failure seems to be in the "samba-ad-dc-5" suite, whose build logs are available here:

   https://git.samba.org/autobuild.flakey.sn-devel-144/2019-04-17-0042/samba-ad-dc-5.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2019-04-17-0042/samba-ad-dc-5.stdout
  
The top commit at the time of the failure was:

commit 45fee29d1ed8e4baa3e1c4af9e54c1b9cb34f639
Author: Stefan Metzmacher <metze at samba.org>
Date:   Fri Apr 12 21:24:27 2019 +0200

    .gitlab-ci.yml: require samba-ci-private tag for our private runners
    
    This makes it more clear that we need our own private runners.
    
    Signed-off-by: Stefan Metzmacher <metze at samba.org>
    Reviewed-by: Ralph Boehme <slow at samba.org>
    
    Autobuild-User(master): Ralph Böhme <slow at samba.org>
    Autobuild-Date(master): Tue Apr 16 17:45:35 UTC 2019 on sn-devel-144

and the last 50 lines of the stdout log were:

[105(451)/320 at 17m51s] samba4.rpc.altercontext on ncalrpc with bigendian(ad_dc_default:local)
[106(452)/320 at 17m51s] samba4.rpc.netlogon on ncalrpc with bigendian(ad_dc_default:local)
[107(489)/320 at 17m59s] samba4.rpc.netlogon.admin on ncalrpc with bigendian(ad_dc_default:local)
[108(498)/320 at 18m4s] samba4.rpc.asyncbind on ncalrpc with bigendian(ad_dc_default:local)
[109(499)/320 at 18m4s] samba4.rpc.lsalookup on ncalrpc with bigendian(ad_dc_default:local)
[110(500)/320 at 18m5s] samba4.rpc.lsa-getuser on ncalrpc with bigendian(ad_dc_default:local)
[111(501)/320 at 18m5s] samba4.rpc.schannel2 on ncalrpc with bigendian(ad_dc_default:local)
[112(502)/320 at 18m8s] samba4.rpc.authcontext on ncalrpc with bigendian(ad_dc_default:local)
[113(503)/320 at 18m9s] samba4.rpc.schannel on ncacn_np with bigendian(ad_dc_default)
[114(504)/320 at 18m54s] samba4.rpc.join on ncacn_np with bigendian(ad_dc_default)
[115(505)/320 at 19m1s] samba4.rpc.lsa on ncacn_np with bigendian(ad_dc_default)
[116(506)/320 at 19m5s] samba4.rpc.dssetup on ncacn_np with bigendian(ad_dc_default)
[117(507)/320 at 19m6s] samba4.rpc.altercontext on ncacn_np with bigendian(ad_dc_default)
[118(508)/320 at 19m6s] samba4.rpc.netlogon on ncacn_np with bigendian(ad_dc_default)
[119(547)/320 at 19m21s] samba4.rpc.netlogon.admin on ncacn_np with bigendian(ad_dc_default)
[120(556)/320 at 19m27s] samba4.rpc.handles on ncacn_np with bigendian(ad_dc_default)
RPC-HANDLE-MIXED-SHARED
connect samr pipe1
use assoc_group_id[0x00000001] for new connections
connect lsa pipe2
got assoc_group_id[0x00000001] for p2
samr_Connect to open a policy handle on samr p1
use policy handle on lsa p2 - should fail
closing policy handle on samr p1
connect samr pipe3 - should fail
Failed to bind to uuid 12345778-1234-abcd-ef00-0123456789ac for ncacn_np:localdc[\pipe\samr,bigendian,assoc_group_id=0x00000001,abstract_syntax=12345778-1234-abcd-ef00-0123456789ac/0x00000001] NT_STATUS_UNSUCCESSFUL
connect lsa pipe4 - should fail
Failed to bind to uuid 12345778-1234-abcd-ef00-0123456789ab for ncacn_np:localdc[\pipe\lsarpc,bigendian,assoc_group_id=0x00000001,abstract_syntax=12345778-1234-abcd-ef00-0123456789ab/0x00000000] NT_STATUS_UNSUCCESSFUL
connect samr pipe5 with assoc_group_id[0xFFFFFFFF]- should fail
Failed to bind to uuid 12345778-1234-abcd-ef00-0123456789ac for ncacn_np:localdc[\pipe\samr,bigendian,assoc_group_id=0xffffffff,abstract_syntax=12345778-1234-abcd-ef00-0123456789ac/0x00000001] NT_STATUS_UNSUCCESSFUL
connect lsa pipe6 with assoc_group_id[0x00000000]- should fail
UNEXPECTED(failure): samba4.rpc.handles on ncacn_np with bigendian.mixed-shared(ad_dc_default)
REASON: Exception: Exception: ../../source4/torture/rpc/handles.c:500: status was NT_STATUS_OK, expected NT_STATUS_UNSUCCESSFUL: opening lsa pipe6

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
samba4.ldb.ldaps with options -U"$USERNAME%$PASSWORD"(ad_dc_default)(ad_dc_default) -> 169
samba4.drs.rpc.dssync on ncacn_ip_tcp with validate(ad_dc_default) -> 58
samba4.drs.rpc.msDSIntId on ncacn_ip_tcp with validate(ad_dc_default) -> 47
samba4.rpc.schannel on ncacn_ip_tcp with validate(ad_dc_default) -> 47
samba4.rpc.schannel on ncacn_np with bigendian(ad_dc_default) -> 46
samba4.rpc.schannel on ncacn_np with validate(ad_dc_default) -> 44
samba4.rpc.schannel on ncacn_ip_tcp with seal,padcheck(ad_dc_default) -> 42
samba4.rpc.schannel on ncalrpc with bigendian(ad_dc_default:local) -> 41
samba4.rpc.schannel on ncacn_np with seal,padcheck(ad_dc_default) -> 41
samba4.ldb.ldap with options '-U"$USERNAME%$PASSWORD" -k yes --option=clientldapsaslwrapping=plain'(ad_dc_default)(ad_dc_default) -> 37
ERROR: test failed with exit code 1