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-184/2019-07-22-0408/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-184/2019-07-22-0408/samba-nt4.stderr
   https://git.samba.org/autobuild.flakey.sn-devel-184/2019-07-22-0408/samba-nt4.stdout
  
The top commit at the time of the failure was:

commit 0bcfc550b1a902e3a6a766b06603ac9285d0ff63
Author: Garming Sam <garming at catalyst.net.nz>
Date:   Thu Jul 18 14:50:57 2019 +1200

    gp_inf: Read/write files with a UTF-16LE BOM in GptTmpl.inf
    
    Regression caused by 16596842a62bec0a9d974c48d64000e3c079254e
    
    [MS-GPSB] 2.2 Message Syntax says that you have to write a BOM which I
    didn't do up until this patch. UTF-16 as input encoding was marked much
    higher up in the inheritance tree, which got overriden with the Python 3
    fixes. I've now marked the encoding much more obviously for this file.
    
    BUG: https://bugzilla.samba.org/show_bug.cgi?id=14004
    
    Signed-off-by: Garming Sam <garming at catalyst.net.nz>
    Reviewed-by: Gary Lockyer <gary at catalyst.net.nz>
    
    Autobuild-User(master): Gary Lockyer <gary at samba.org>
    Autobuild-Date(master): Fri Jul 19 02:20:47 UTC 2019 on sn-devel-184

and the last 50 lines of the stdout log were:

[560(2553)/604 at 32m3s] samba.wbinfo_simple.online-status.domain=$DOMAIN(nt4_dc:local)
[561(2554)/604 at 32m4s] samba.wbinfo_simple.check-secret.domain=$DOMAIN(nt4_dc:local)
[562(2555)/604 at 32m4s] samba.wbinfo_simple.change-secret.domain=$DOMAIN(nt4_dc:local)
[563(2556)/604 at 32m4s] samba.wbinfo_simple.check-secret.domain=$DOMAIN(nt4_dc:local)
[564(2557)/604 at 32m4s] samba.wbinfo_simple.online-status.domain=$DOMAIN(nt4_dc:local)
[565(2558)/604 at 32m4s] samba.wbinfo_simple.domain-users(nt4_dc:local)
[566(2559)/604 at 32m4s] samba.wbinfo_simple.domain-groups(nt4_dc:local)
[567(2560)/604 at 32m4s] samba.wbinfo_simple.name-to-sid=$DC_USERNAME(nt4_dc:local)
[568(2561)/604 at 32m5s] samba.wbinfo_simple.name-to-sid=$DOMAIN/$DC_USERNAME(nt4_dc:local)
[569(2562)/604 at 32m5s] samba.wbinfo_simple.user-info=$DOMAIN/$DC_USERNAME(nt4_dc:local)
[570(2563)/604 at 32m5s] samba.wbinfo_simple.user-groups=$DOMAIN/$DC_USERNAME(nt4_dc:local)
[571(2564)/604 at 32m5s] samba.wbinfo_simple.authenticate=$DOMAIN/$DC_USERNAME%$DC_PASSWORD(nt4_dc:local)
[572(2565)/604 at 32m5s] samba.wbinfo_simple.allocate-uid(nt4_dc:local)
[573(2566)/604 at 32m5s] samba.wbinfo_simple.allocate-gid(nt4_dc:local)
[574(2567)/604 at 32m6s] samba.wbinfo_sids2xids.(nt4_dc:local)(nt4_dc:local)
[575(2568)/604 at 32m14s] samba.tests.ntlm_auth(nt4_dc:local)
[576(2581)/604 at 32m17s] samba.wbinfo_simple.ping(nt4_member:local)
[577(2582)/604 at 32m17s] samba.wbinfo_simple.separator(nt4_member:local)
[578(2583)/604 at 32m17s] samba.wbinfo_simple.own-domain(nt4_member:local)
[579(2584)/604 at 32m17s] samba.wbinfo_simple.all-domains(nt4_member:local)
[580(2585)/604 at 32m17s] samba.wbinfo_simple.trusted-domains(nt4_member:local)
[581(2586)/604 at 32m17s] samba.wbinfo_simple.domain-info=BUILTIN(nt4_member:local)
[582(2587)/604 at 32m18s] samba.wbinfo_simple.domain-info=$DOMAIN(nt4_member:local)
[583(2588)/604 at 32m18s] samba.wbinfo_simple.online-status(nt4_member:local)
[584(2589)/604 at 32m18s] samba.wbinfo_simple.online-status.domain=BUILTIN(nt4_member:local)
[585(2590)/604 at 32m18s] samba.wbinfo_simple.online-status.domain=$DOMAIN(nt4_member:local)
[586(2591)/604 at 32m18s] samba.wbinfo_simple.check-secret.domain=$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.smb2.lease(nt4_dc) -> 162
samba3.raw.notify(nt4_dc) -> 106
samba3.smb2.oplock(nt4_dc) -> 104
samba3.smb2.compound_find(nt4_dc) -> 101
samba3.smb2.compound_find(nt4_dc) -> 100
samba3.smb2.notify(nt4_dc) -> 83
samba3.blackbox.net.rpc.conf(nt4_dc) -> 72
samba3.base.dir2(nt4_dc) -> 63
samba3.rpc.samr.passwords.lockout(nt4_dc) -> 62
samba4.rpc.echo on ncacn_np with object(nt4_dc) -> 60
ERROR: test failed with exit code 1
Makefile:16: recipe for target 'test' failed