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-184/2019-06-11-0340/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-184/2019-06-11-0340/samba-ad-dc-5.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-06-11-0340/samba-ad-dc-5.stdout
  
The top commit at the time of the failure was:

commit 7cc9e3fe24dd476360837c04538345752048e6be
Author: Günther Deschner <gd at samba.org>
Date:   Mon Jun 3 16:28:36 2019 +0200

    s3/vfs_glusterfs_fuse: Avoid using NAME_MAX directly
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=13872
    
    Guenther
    
    Signed-off-by: Guenther Deschner <gd at samba.org>
    Reviewed-by: Volker Lendecke <vl at samba.org>
    
    Autobuild-User(master): Günther Deschner <gd at samba.org>
    Autobuild-Date(master): Tue Jun 11 00:29:19 UTC 2019 on sn-devel-184

and the last 50 lines of the stdout log were:

[226(1011)/324 at 14m53s] samba4.net.api.rpcconn.pdc(ad_dc_default)
[227(1012)/324 at 14m54s] samba4.net.api.rpcconn.dc(ad_dc_default)
[228(1013)/324 at 14m55s] samba4.net.api.rpcconn.dcinfo(ad_dc_default)
[229(1014)/324 at 14m55s] samba4.net.api.listshares(ad_dc_default)
[230(1015)/324 at 14m56s] samba4.net.api.delshare(ad_dc_default)
[231(1016)/324 at 14m57s] samba4.net.api.domopenlsa(ad_dc_default)
[232(1017)/324 at 14m57s] samba4.net.api.domcloselsa(ad_dc_default)
[233(1018)/324 at 14m58s] samba4.net.api.domopensamr(ad_dc_default)
[234(1019)/324 at 14m58s] samba4.net.api.domclosesamr(ad_dc_default)
[235(1020)/324 at 14m58s] samba4.net.api.domlist(ad_dc_default)
[236(1021)/324 at 14m59s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=yes(ad_dc_default)
[237(1045)/324 at 15m1s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=yes --option=ntlmssp_client:128bit=no(ad_dc_default)
[238(1069)/324 at 15m3s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=yes --option=ntlmssp_client:56bit=yes(ad_dc_default)
[239(1093)/324 at 15m5s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=yes --option=ntlmssp_client:56bit=no(ad_dc_default)
[240(1117)/324 at 15m6s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=yes --option=ntlmssp_client:128bit=no --option=ntlmssp_client:56bit=yes(ad_dc_default)
[241(1141)/324 at 15m8s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=yes --option=ntlmssp_client:128bit=no --option=ntlmssp_client:56bit=no(ad_dc_default)
[242(1165)/324 at 15m10s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=yes --option=clientntlmv2auth=yes(ad_dc_default)
[243(1189)/324 at 15m11s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=yes --option=clientntlmv2auth=yes --option=ntlmssp_client:128bit=no(ad_dc_default)
[244(1213)/324 at 15m13s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=yes --option=clientntlmv2auth=yes --option=ntlmssp_client:128bit=no --option=ntlmssp_client:56bit=yes(ad_dc_default)
[245(1237)/324 at 15m15s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=no --option=clientntlmv2auth=yes(ad_dc_default)
[246(1261)/324 at 15m17s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=gensec:spnego=no --option=clientntlmv2auth=yes(ad_dc_default)
[247(1285)/324 at 15m18s] samba4.rpc.lsa.secrets on ncacn_np with with -k no --option=clientusespnego=no(ad_dc_default)
[248(1309)/324 at 15m20s] samba.blackbox.pdbtest(ad_dc_default)(ad_dc_default:local)
[249(1327)/324 at 15m26s] samba4.rpc.backupkey with sign(ad_dc_default)
[250(1355)/324 at 15m26s] samba4.rpc.backupkey with seal(ad_dc_default)

Testing OpenPolicy2
Testing OpenSecret
Testing OpenSecret
Get_user_sid finished
UNEXPECTED(failure): samba4.rpc.backupkey with seal.backupkey.server_wrap_encrypt_decrypt_wrong_key(ad_dc_default)
REASON: Exception: Exception: ../../source4/torture/rpc/backupkey.c:2268: r.out.result was WERR_INVALID_ACCESS, expected WERR_INVALID_PARAMETER: decrypt should fail with WERR_INVALID_PARAMETER

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.drs.rpc.dssync on ncacn_ip_tcp with validate(ad_dc_default) -> 38
samba4.drs.rpc.msDSIntId on ncacn_ip_tcp with validate(ad_dc_default) -> 30
samba4.ldb.ldap with options '-U"$USERNAME%$PASSWORD"  --option=clientldapsaslwrapping=plain'(ad_dc_default)(ad_dc_default) -> 26
samba4.rpc.schannel on ncacn_ip_tcp with bigendian(ad_dc_default) -> 26
samba4.rpc.schannel on ncacn_np with validate(ad_dc_default) -> 25
samba4.ldb.ldap with options '-U"$USERNAME%$PASSWORD" -k yes --option=clientldapsaslwrapping=plain'(ad_dc_default)(ad_dc_default) -> 24
samba4.rpc.lsa.trusted.domains with validate(ad_dc_default) -> 24
samba4.rpc.schannel on ncacn_np with bigendian(ad_dc_default) -> 24
samba4.rpc.lsa.trusted.domains with bigendian(ad_dc_default) -> 23
samba4.rpc.schannel on ncacn_ip_tcp with seal,padcheck(ad_dc_default) -> 22
ERROR: test failed with exit code 1
Makefile:16: recipe for target 'test' failed