Make sphinx-build warnings fatal

In order to prevent documentation building issues from being glossed
over, pass the -W command line switch to all sphinx-build invocations.
This causes the latter to return with a non-zero exit code whenever any
Sphinx warnings are triggered.
76 jobs for !4640 with 2448-tweak-sphinx-build-invocations in 7 minutes and 38 seconds (queued for 7 seconds)
detached
Status Job ID Name Coverage
  Autoconf
passed #1459455
amd64 linux
autoreconf

00:00:18

 
  Precheck
passed #1459457
amd64 linux
clang-format

00:00:18

passed #1459458
amd64 linux
coccinelle

00:03:41

passed #1459459
amd64 linux
danger

00:00:15

passed #1459456
amd64 linux
misc

00:00:17

passed #1459460
amd64 linux
tarball-create

00:01:54

 
  Build
passed #1459473
amd64 linux
clang:asan

00:02:22

passed #1459477
amd64 linux
clang:buster:amd64

00:00:56

passed #1459480
amd64 libvirt
clang:freebsd11:amd64

00:01:17

passed #1459481
amd64 libvirt
clang:freebsd12:amd64

00:01:16

passed #1459482
amd64 libvirt
clang:openbsd:amd64

00:02:32

passed #1459475
amd64 linux
clang:tsan

00:01:16

passed #1459461
amd64 linux
gcc:alpine3.12:amd64

00:01:04

passed #1459472
amd64 linux
gcc:asan

00:01:42

passed #1459465
amd64 linux
gcc:buster:amd64

00:00:50

passed #1459462
amd64 linux
gcc:centos7:amd64

00:01:00

passed #1459463
amd64 linux
gcc:centos8:amd64

00:01:03

passed #1459471
amd64 linux
gcc:focal:amd64

00:00:49

passed #1459476
amd64 linux
gcc:mutexatomics

00:00:58

passed #1459467
amd64 linux
gcc:out-of-tree

00:01:03

passed #1459466
amd64 linux
gcc:sid:amd64

00:01:09

passed #1459468
i386 linux
gcc:sid:i386

00:01:05

passed #1459478
amd64 linux
gcc:softhsm2.4

00:01:02

passed #1459479
amd64 linux
gcc:softhsm2.6

00:00:50

passed #1459464
amd64 linux
gcc:stretch:amd64

00:01:08

passed #1459474
amd64 linux
gcc:tsan

00:01:11

passed #1459469
amd64 linux
gcc:tumbleweed:amd64

00:01:01

passed #1459470
amd64 linux
gcc:xenial:amd64

00:01:05

passed #1459483
amd64 windows
msvc:windows:amd64

00:00:53

 
  Unit
passed #1459495
amd64 linux
unit:clang:asan

00:01:27

passed #1459499
amd64 linux
unit:clang:buster:amd64

00:01:07

passed #1459502
amd64 libvirt
unit:clang:freebsd11:amd64

00:01:34

passed #1459503
amd64 libvirt
unit:clang:freebsd12:amd64

00:01:30

passed #1459504
amd64 libvirt
unit:clang:openbsd:amd64

00:02:45

passed #1459497
amd64 linux
unit:clang:tsan

00:03:06

passed #1459484
amd64 linux
unit:gcc:alpine3.12:amd64

00:01:12

passed #1459494
amd64 linux
unit:gcc:asan

00:01:20

passed #1459488
amd64 linux
unit:gcc:buster:amd64

00:02:06

passed #1459485
amd64 linux
unit:gcc:centos7:amd64

00:01:13

passed #1459486
amd64 linux
unit:gcc:centos8:amd64

00:01:12

passed #1459493
amd64 linux
unit:gcc:focal:amd64

00:01:09

passed #1459498
amd64 linux
unit:gcc:mutexatomics

00:01:08

passed #1459489
amd64 linux
unit:gcc:sid:amd64

00:01:17

passed #1459490
i386 linux
unit:gcc:sid:i386

00:01:04

passed #1459500
amd64 linux
unit:gcc:softhsm2.4

00:01:11

passed #1459501
amd64 linux
unit:gcc:softhsm2.6

00:01:11

passed #1459487
amd64 linux
unit:gcc:stretch:amd64

00:01:10

passed #1459496
amd64 linux
unit:gcc:tsan

00:04:13

passed #1459491
amd64 linux
unit:gcc:tumbleweed:amd64

00:01:11

passed #1459492
amd64 linux
unit:gcc:xenial:amd64

00:01:13

 
  System
canceled #1459516
amd64 linux
system:clang:asan

00:04:46

canceled #1459520
amd64 linux
system:clang:buster:amd64

00:06:15

canceled #1459523
amd64 libvirt
system:clang:freebsd11:amd64

00:05:23

canceled #1459524
amd64 libvirt
system:clang:freebsd12:amd64

00:05:09

canceled #1459518
amd64 linux allowed to fail
system:clang:tsan

00:05:01

canceled #1459505
amd64 linux
system:gcc:alpine3.12:amd64

00:06:10

canceled #1459515
amd64 linux
system:gcc:asan

00:05:12

canceled #1459509
amd64 linux
system:gcc:buster:amd64

00:04:16

canceled #1459506
amd64 linux
system:gcc:centos7:amd64

00:06:15

canceled #1459507
amd64 linux
system:gcc:centos8:amd64

00:06:05

canceled #1459514
amd64 linux
system:gcc:focal:amd64

00:06:21

canceled #1459519
amd64 linux
system:gcc:mutexatomics

00:06:16

canceled #1459510
amd64 linux
system:gcc:sid:amd64

00:05:59

canceled #1459511
i386 linux
system:gcc:sid:i386

00:06:02

canceled #1459521
amd64 linux
system:gcc:softhsm2.4

00:06:10

canceled #1459522
amd64 linux
system:gcc:softhsm2.6

00:06:24

canceled #1459508
amd64 linux
system:gcc:stretch:amd64

00:06:03

canceled #1459517
amd64 linux allowed to fail
system:gcc:tsan

00:05:07

canceled #1459512
amd64 linux
system:gcc:tumbleweed:amd64

00:06:02

canceled #1459513
amd64 linux
system:gcc:xenial:amd64

00:06:01

 
  Docs
passed #1459525
amd64 linux
docs

00:00:52

 
  Postcheck
passed #1459529
amd64 linux
cppcheck

00:00:46

passed #1459526
amd64 linux
flake8

00:00:20

canceled #1459530
amd64 linux
gcov

passed #1459527
amd64 linux
pylint

00:00:25

passed #1459528
amd64 linux
scan-build

00:04:23