[Qa-jenkins-scm] Build failed in Jenkins: reproducible_maintenance_armhf_ff2b #11225

[jenkins at jenkins.debian.net]

See <https://jenkins.debian.net/job/reproducible_maintenance_armhf_ff2b/11225/display/redirect>

------------------------------------------
Started by timer
[EnvInject] - Loading node environment variables.
Building remotely on ff2b-armhf-rb.debian.net (armhf ff2b) in workspace <https://jenkins.debian.net/job/reproducible_maintenance_armhf_ff2b/ws/>
[reproducible_maintenance_armhf_ff2b] $ /bin/sh -xe /tmp/jenkins6447748066608031561.sh
+ /srv/jenkins/bin/jenkins_master_wrapper.sh
ssh: Could not resolve hostname ff2b-armhf-rb: Name or service not known
Tue  8 Jan 14:05:02 UTC 2019 - ff2b-armhf-rb seems to be down, sleeping 1min before exiting with error.
Build step 'Execute shell' marked build as failure