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-144/2018-11-22-0651/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-144/2018-11-22-0651/samba-nt4.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-144/2018-11-22-0651/samba-nt4.stdout
  
The top commit at the time of the failure was:

commit 88d82b44c326cfb3ab1cf1f7288eada2566ab4bc
Author: Volker Lendecke <vl at samba.org>
Date:   Fri Nov 16 21:11:57 2018 +0100

    libsmb: Make cli_notify_send cancellable
    
    Signed-off-by: Volker Lendecke <vl at samba.org>
    Reviewed-by: Jeremy Allison <jra at samba.org>
    
    Autobuild-User(master): Volker Lendecke <vl at samba.org>
    Autobuild-Date(master): Wed Nov 21 20:50:13 CET 2018 on sn-devel-144

and the last 50 lines of the stdout log were:

[530(2459)/576 at 22m48s] samba.wbinfo_simple.online-status.domain=$DOMAIN(nt4_dc:local)
[531(2460)/576 at 22m48s] samba.wbinfo_simple.check-secret.domain=$DOMAIN(nt4_dc:local)
[532(2461)/576 at 22m48s] samba.wbinfo_simple.change-secret.domain=$DOMAIN(nt4_dc:local)
[533(2462)/576 at 22m48s] samba.wbinfo_simple.check-secret.domain=$DOMAIN(nt4_dc:local)
[534(2463)/576 at 22m48s] samba.wbinfo_simple.online-status.domain=$DOMAIN(nt4_dc:local)
[535(2464)/576 at 22m48s] samba.wbinfo_simple.domain-users(nt4_dc:local)
[536(2465)/576 at 22m48s] samba.wbinfo_simple.domain-groups(nt4_dc:local)
[537(2466)/576 at 22m48s] samba.wbinfo_simple.name-to-sid=$DC_USERNAME(nt4_dc:local)
[538(2467)/576 at 22m49s] samba.wbinfo_simple.name-to-sid=$DOMAIN/$DC_USERNAME(nt4_dc:local)
[539(2468)/576 at 22m49s] samba.wbinfo_simple.user-info=$DOMAIN/$DC_USERNAME(nt4_dc:local)
[540(2469)/576 at 22m49s] samba.wbinfo_simple.user-groups=$DOMAIN/$DC_USERNAME(nt4_dc:local)
[541(2470)/576 at 22m49s] samba.wbinfo_simple.authenticate=$DOMAIN/$DC_USERNAME%$DC_PASSWORD(nt4_dc:local)
[542(2471)/576 at 22m49s] samba.wbinfo_simple.allocate-uid(nt4_dc:local)
[543(2472)/576 at 22m49s] samba.wbinfo_simple.allocate-gid(nt4_dc:local)
[544(2473)/576 at 22m49s] samba.wbinfo_sids2xids.(nt4_dc:local)(nt4_dc:local)
[545(2474)/576 at 22m56s] samba.ntlm_auth.diagnostics(nt4_dc:local)(nt4_dc:local)
[546(2475)/576 at 22m56s] samba.ntlm_auth.(nt4_dc:local)(nt4_dc:local)
[547(2494)/576 at 22m58s] samba.wbinfo_simple.ping(nt4_member:local)
[548(2495)/576 at 22m58s] samba.wbinfo_simple.separator(nt4_member:local)
[549(2496)/576 at 22m58s] samba.wbinfo_simple.own-domain(nt4_member:local)
[550(2497)/576 at 22m59s] samba.wbinfo_simple.all-domains(nt4_member:local)
[551(2498)/576 at 22m59s] samba.wbinfo_simple.trusted-domains(nt4_member:local)
[552(2499)/576 at 22m59s] samba.wbinfo_simple.domain-info=BUILTIN(nt4_member:local)
[553(2500)/576 at 22m59s] samba.wbinfo_simple.domain-info=$DOMAIN(nt4_member:local)
[554(2501)/576 at 22m59s] samba.wbinfo_simple.online-status(nt4_member:local)
[555(2502)/576 at 22m59s] samba.wbinfo_simple.online-status.domain=BUILTIN(nt4_member:local)
[556(2503)/576 at 22m59s] samba.wbinfo_simple.online-status.domain=$DOMAIN(nt4_member:local)
[557(2504)/576 at 22m59s] samba.wbinfo_simple.check-secret.domain=$DOMAIN(nt4_member:local)
UNEXPECTED(failure): samba.wbinfo_simple.check-secret.domain=SAMBA-TEST.wbinfo(nt4_member:local)
REASON: Exception: Exception: wbcCheckTrustCredentials(SAMBA-TEST): error code was NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND (0xc0000233)
failed to call wbcCheckTrustCredentials: WBC_ERR_AUTH_ERROR
Could not check secret
checking the trust secret for domain SAMBA-TEST via RPC calls 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
samba3.raw.notify(nt4_dc) -> 102
samba3.smb2.notify(nt4_dc) -> 83
samba3.rpc.samr.passwords.lockout(nt4_dc) -> 62
samba4.rpc.echo on ncacn_np with object(nt4_dc) -> 60
samba3.smb2.compound_find(nt4_dc) -> 56
samba3.smb2.compound_find(nt4_dc) -> 52
samba3.rpc.samr.passwords.pwdlastset(nt4_dc) -> 49
samba3.raw.search(nt4_dc) -> 49
samba3.smb2.lease(nt4_dc) -> 45
samba3.raw.oplock(nt4_dc) -> 44
ERROR: test failed with exit code 1