[CRIU] ✗ travis-ci: failure for sockets: Placate logger when diag modules are missing

[Andrey Vagin]

======================== Run zdtm/transition/ipc in ns =========================
Construct root for zdtm/transition/ipc
Start test
./ipc --pidfile=ipc.pid --outfile=ipc.out
Run criu dump
=[log]=> dump/zdtm/transition/ipc/49/1/dump.log
------------------------ grep Error ------------------------
(00.007292) mnt: Inspecting sharing on 153 shared_id 0 master_id 0 (@./)
(00.007295) Collecting netns 9/49
(00.007298) Switching to 49's net for collecting sockets
(00.007365) unix: 	Collected: ino 30548 peer_ino 0 family    1 type    5 state  7 name (null)
(00.008450) Error (criu/libnetlink.c:51): ERROR -2 reported by netlink: No such file or directory
(00.009344) Error (criu/libnetlink.c:51): ERROR -2 reported by netlink: No such file or directory
(00.011310) 	Unseizing 49 into 1
(00.011324) 	Unseizing 53 into 1
(00.011330) 	Unseizing 54 into 1
(00.011336) 	Unseizing 55 into 1
(00.011353) Error (criu/cr-dump.c:1743): Dumping FAILED.
------------------------ ERROR OVER ------------------------
################## Test zdtm/transition/ipc FAIL at CRIU dump ##################

On Thu, Sep 27, 2018 at 12:44:59PM +0000, Patchwork wrote:
> == Series Details ==
> 
> Series: sockets: Placate logger when diag modules are missing
> URL   : https://patchwork.criu.org/series/3027/
> State : failure
> 
> == Logs ==
> 
> For more details see: https://travis-ci.org/criupatchwork/criu/builds/434035052?utm_source=github_status&utm_medium=notification
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