Better error handling in autosign system test

(cherry picked from commit bd403590)
(cherry picked from commit 6658c112)
65 jobs for !2744 with 1457-intermittent-failure-autosign-v9_11-rebased in 1 minute and 22 seconds (queued for 6 seconds)
latest detached
Status Job ID Name Coverage
  Precheck
passed #465850
amd64 linux
🐞:sid:amd64

00:01:07

passed #465848
amd64 linux
autoreconf:sid:amd64

00:00:32

passed #465849
amd64 linux
misc:sid:amd64

00:00:18

 
  Build
canceled #465863
amd64 linux
asan:sid:amd64

00:00:44

canceled #465868
amd64 freebsd
clang:freebsd11.3:amd64

00:00:39

canceled #465869
amd64 freebsd
clang:freebsd12.0:amd64

00:00:38

canceled #465870
amd64 openbsd
clang:openbsd6.5:amd64

00:00:36

canceled #465864
amd64 linux
clang:stretch:amd64

00:00:44

canceled #465865
i386 linux
clang:stretch:i386

00:00:44

canceled #465851
amd64 linux
gcc:alpine3.10:amd64

00:00:47

canceled #465862
amd64 linux
gcc:bionic:amd64

00:00:44

canceled #465857
amd64 linux
gcc:buster:amd64

00:00:45

canceled #465852
amd64 linux
gcc:centos6:amd64

00:00:46

canceled #465853
amd64 linux
gcc:centos7:amd64

00:00:46

canceled #465854
amd64 linux
gcc:centos8:amd64

00:00:46

canceled #465860
amd64 linux
gcc:fedora30:amd64

00:00:45

canceled #465855
amd64 linux
gcc:jessie:amd64

00:00:45

canceled #465858
amd64 linux
gcc:sid:amd64

00:00:45

canceled #465859
i386 linux
gcc:sid:i386

00:00:45

canceled #465856
amd64 linux
gcc:stretch:amd64

00:00:45

canceled #465861
amd64 linux
gcc:xenial:amd64

00:00:45

canceled #465872
amd64 windows
msvc:windows:amd64

00:00:36

canceled #465866
amd64 linux
nocrypto:sid:amd64

00:00:43

canceled #465871
amd64 linux
nolibtool:sid:amd64

00:00:40

canceled #465867
amd64 linux
pkcs11:sid:amd64

00:00:42

 
  Unit
canceled #465885
amd64 linux
unit:asan:sid:amd64

canceled #465889
amd64 freebsd
unit:clang:freebsd11.3:amd64

canceled #465890
amd64 freebsd
unit:clang:freebsd12.0:amd64

canceled #465886
amd64 linux
unit:clang:stretch:amd64

canceled #465873
amd64 linux
unit:gcc:alpine3.10:amd64

canceled #465884
amd64 linux
unit:gcc:bionic:amd64

canceled #465879
amd64 linux
unit:gcc:buster:amd64

canceled #465874
amd64 linux
unit:gcc:centos6:amd64

canceled #465875
amd64 linux
unit:gcc:centos7:amd64

canceled #465876
amd64 linux
unit:gcc:centos8:amd64

canceled #465882
amd64 linux
unit:gcc:fedora30:amd64

canceled #465877
amd64 linux
unit:gcc:jessie:amd64

canceled #465880
amd64 linux
unit:gcc:sid:amd64

canceled #465881
i386 linux
unit:gcc:sid:i386

canceled #465878
amd64 linux
unit:gcc:stretch:amd64

canceled #465883
amd64 linux
unit:gcc:xenial:amd64

canceled #465887
amd64 linux
unit:nocrypto:sid:amd64

canceled #465891
amd64 linux
unit:nolibtool:sid:amd64

canceled #465888
amd64 linux
unit:pkcs11:sid:amd64

 
  System
canceled #465904
amd64 linux
system:asan:sid:amd64

canceled #465907
amd64 freebsd
system:clang:freebsd11.3:amd64

canceled #465908
amd64 freebsd
system:clang:freebsd12.0:amd64

canceled #465892
amd64 linux
system:gcc:alpine3.10:amd64

canceled #465903
amd64 linux
system:gcc:bionic:amd64

canceled #465898
amd64 linux
system:gcc:buster:amd64

canceled #465893
amd64 linux
system:gcc:centos6:amd64

canceled #465894
amd64 linux
system:gcc:centos7:amd64

canceled #465895
amd64 linux
system:gcc:centos8:amd64

canceled #465901
amd64 linux
system:gcc:fedora30:amd64

canceled #465896
amd64 linux
system:gcc:jessie:amd64

canceled #465899
amd64 linux
system:gcc:sid:amd64

canceled #465900
i386 linux
system:gcc:sid:i386

canceled #465897
amd64 linux
system:gcc:stretch:amd64

canceled #465902
amd64 linux
system:gcc:xenial:amd64

canceled #465905
amd64 linux
system:nocrypto:sid:amd64

canceled #465909
amd64 linux
system:nolibtool:sid:amd64

canceled #465906
amd64 linux
system:pkcs11:sid:amd64

 
  Docs
canceled #465910
amd64 linux
docs:sid:amd64

00:00:40

 
  Postcheck
canceled #465912
amd64 linux
cppcheck:gcc:sid:amd64

canceled #465911
amd64 linux
scan-build:buster:amd64

00:00:40