autobuild[sn-devel-184]: intermittent test failure detected

[autobuild]

The autobuild test system (on sn-devel-184) 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-184/2019-04-03-0939/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-184/2019-04-03-0939/samba-ad-dc-5.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-04-03-0939/samba-ad-dc-5.stdout
  
The top commit at the time of the failure was:

commit c7f403d373016374fc96b7fa113f4723a41788a0
Author: Andreas Schneider <asn at samba.org>
Date:   Tue Mar 19 12:31:42 2019 +0100

    lib:util: Include talloc_keep_secret.h in samba_util.h
    
    Signed-off-by: Andreas Schneider <asn at samba.org>
    Reviewed-by: Andrew Bartlet <abartlet at samba.org>
    
    Autobuild-User(master): Andreas Schneider <asn at cryptomilk.org>
    Autobuild-Date(master): Wed Apr  3 07:50:03 UTC 2019 on sn-devel-144

and the last 50 lines of the stdout log were:

[22(72)/320 at 6m27s] samba4.rpc.dssetup on ncalrpc with seal,padcheck(ad_dc_default:local)
[23(73)/320 at 6m27s] samba4.rpc.altercontext on ncalrpc with seal,padcheck(ad_dc_default:local)
smbtorture 4.11.0pre1-DEVELOPERBUILD
WARNING: The "lsa over netlogon" option is deprecated
WARNING: The "server schannel" option is deprecated
Using seed 1554284348
opening LSA connection
Testing change of primary context

Testing OpenPolicy2
Testing change of primary context
Opening secondary DSSETUP context
Testing change of primary context
Opening bad secondary connection
Testing DSSETUP pipe operations
dcerpc_dssetup_DsRoleGetPrimaryDomainInformation level 1
dcerpc_dssetup_DsRoleGetPrimaryDomainInformation level 2
dcerpc_dssetup_DsRoleGetPrimaryDomainInformation level 3

Testing Close

Testing change of primary context

Testing OpenPolicy2

Testing Close

Testing change of primary context

Testing OpenPolicy2
UNEXPECTED(failure): samba4.rpc.altercontext on ncalrpc with seal,padcheck.altercontext(ad_dc_default:local)
REASON: Exception: Exception: ../../source4/torture/rpc/lsa.c:188: status was NT_STATUS_CONNECTION_RESET, expected NT_STATUS_CONNECTION_DISCONNECTED: OpenPolicy2 failed

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.ldap with options '-U"$USERNAME%$PASSWORD"  --option=clientldapsaslwrapping=plain'(ad_dc_default)(ad_dc_default) -> 50
samba4.ldb.ldap with options '-U"$USERNAME%$PASSWORD" -k yes --option=clientldapsaslwrapping=plain'(ad_dc_default)(ad_dc_default) -> 45
samba4.rpc.schannel on ncalrpc with seal,padcheck(ad_dc_default:local) -> 33
samba4.ldb.ldap with options '-U"$USERNAME%$PASSWORD" -k yes --encrypt'(ad_dc_default)(ad_dc_default) -> 32
samba4.ldb.ldap with options '-U"$USERNAME%$PASSWORD"  --sign'(ad_dc_default)(ad_dc_default) -> 31
samba4.ldb.ldap with options '-U"$USERNAME%$PASSWORD" -k yes --sign'(ad_dc_default)(ad_dc_default) -> 31
samba4.ldb.ldap with options '-U"$USERNAME%$PASSWORD"  --encrypt'(ad_dc_default)(ad_dc_default) -> 31
samba4.ldb.ldap with options '-U"$USERNAME%$PASSWORD" -k no --option=clientldapsaslwrapping=plain'(ad_dc_default)(ad_dc_default) -> 18
samba4.ldb.ldap with options '-U"$USERNAME%$PASSWORD" -k no --encrypt'(ad_dc_default)(ad_dc_default) -> 18
samba4.ldb.ldaps with options -U"$USERNAME%$PASSWORD"(ad_dc_default)(ad_dc_default) -> 18
ERROR: test failed with exit code 1
Makefile:16: recipe for target 'test' failed