[Qa-jenkins-scm] Build failed in Jenkins: reproducible_maintenance_armhf_ff4a #9979

[jenkins at jenkins.debian.net]

See <https://jenkins.debian.net/job/reproducible_maintenance_armhf_ff4a/9979/display/redirect>

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[EnvInject] - Loading node environment variables.
Building remotely on ff4a-armhf-rb.debian.net (ff4a armhf) in workspace <https://jenkins.debian.net/job/reproducible_maintenance_armhf_ff4a/ws/>
[reproducible_maintenance_armhf_ff4a] $ /bin/sh -xe /tmp/jenkins8200209591498363818.sh
+ /srv/jenkins/bin/jenkins_master_wrapper.sh
ssh: connect to host ff4a-armhf-rb.debian.net port 2241: No route to host
Fri 16 Nov 17:39:36 UTC 2018 - ff4a-armhf-rb.debian.net seems to be down, sleeping 1min before exiting with error.
Build step 'Execute shell' marked build as failure