Merge ~rbalint/autopkgtest-cloud:retry-relax into autopkgtest-cloud:master

[Balint Reczey]

[Balint Reczey (rbalint)]

https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-hirsute/hirsute/armhf/i/igerman98/20201117_213319_5ffb4@/log.gz
...
Get:4 http://ftpmaster.internal/ubuntu hirsute-proposed/main armhf perl-base armhf 5.32.0-5 [1,423 kB]
EFetched 5,015 kB in 51s (98.4 kB/s)
: Failed to fetch http://ftpmaster.internal/ubuntu/pool/main/p/perl/perl-modules-5.32_5.32.0-5_all.deb Temporary failure resolving 'ftpmaster.internal'
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
...

[Steve Langasek (vorlon)]

review: Approve

diff --git a/worker/worker b/worker/worker
index 399425a..1747b12 100755
--- a/worker/worker
+++ b/worker/worker
@@ -59,7 +59,7 @@ FAIL_STRINGS = ['Kernel panic - not syncing:',
                 'Call Trace:']
 TEMPORARY_TEST_FAIL_STRINGS = ['Could not connect to ftpmaster.internal:80',
                                'Cannot initiate the connection to ppa.launchpad.net:80',
-                               'E: Failed to fetch http://ftpmaster.internal/'
+                               'Failed to fetch http://ftpmaster.internal/'
                                '" failed with stderr "error: Get https://0.0.0.0/1.0/operations/',
                                'Temporary failure resolving',
                                'Temporary failure in name resolution',