README: use nightly branch for CI-related badges

Status Job ID Name Coverage
  Build
passed #170864
amd64 linux docker
build:clang:linux:amd64

00:01:52

passed #170863
amd64 linux docker
build:linux:amd64

00:02:07

passed #170865
amd64 linux docker allowed to fail
srpm

00:01:22

 
  Test
passed #170872
amd64 linux docker
deckard:linux:amd64

00:01:33

passed #170879
privileged
distro:epel-7

00:02:32

passed #170878
privileged
distro:fedora-27

00:03:43

passed #170871
docker
doc

00:01:05

passed #170870
amd64 linux docker
installcheck:linux:amd64

00:01:15

passed #170873
amd64 linux docker
installcheck:valgrind:linux:amd64

00:01:37

passed #170867
docker
lint:c

00:02:43

failed #170868
docker allowed to fail
lint:clang-scan-build

00:01:22

passed #170866
docker
lint:lua

00:00:45

passed #170876
amd64 linux docker
respdiff:iter:tcp:linux:amd64

00:04:06

passed #170888
amd64 linux docker
respdiff:iter:tls:linux:amd64

00:04:07

passed #170887
amd64 linux docker
respdiff:iter:udp:linux:amd64

00:04:02

passed #170869
amd64 linux docker
test:linux:amd64

00:01:19

passed #170874
amd64 linux docker
test:linux:amd64:valgrind

00:01:22

failed #170877
amd64 linux docker
respdiff:iter:tls:linux:amd64

00:02:20

failed #170875
amd64 linux docker
respdiff:iter:udp:linux:amd64

00:02:21

 
  Respdiff
passed #170880
respdiff
respdiff:fwd-tls6-kresd.udp6

00:28:03

passed #170881
respdiff
respdiff:fwd-udp6-kresd.udp6

00:14:32

passed #170885
respdiff
respdiff:fwd-udp6-unbound.tcp6

00:36:06

passed #170889
respdiff
respdiff:fwd-udp6-unbound.tls6

00:11:19

passed #170884
respdiff
respdiff:fwd-udp6-unbound.udp6

00:33:36

passed #170883
respdiff
respdiff:iter.tls6

00:24:34

passed #170882
respdiff
respdiff:iter.udp6

00:37:36

failed #170886
respdiff
respdiff:fwd-udp6-unbound.tls6

00:25:03

 
Name Stage Failure
failed
lint:clang-scan-build Test
                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 warnings generated.
CCLD daemon/kresd
scan-build: 32 bugs found.
scan-build: Run 'scan-view /builds/knot/knot-resolver/scan-results/2018-09-03-092252-14-1' to examine bug reports.
Uploading artifacts...
scan-results: found 37 matching files
Uploading artifacts to coordinator... ok
id=170868 responseStatus=201 Created token=rk4ZwMiy
ERROR: Job failed: exit code 1