[Qa-jenkins-scm] Build failed in Jenkins: reproducible_maintenance_armhf_jtk1a #5237

[jenkins at jenkins.debian.net]

See <https://jenkins.debian.net/job/reproducible_maintenance_armhf_jtk1a/5237/display/redirect>

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Started by timer
[EnvInject] - Loading node environment variables.
Building remotely on jtk1a-armhf-rb.debian.net (armhf jtk1a) in workspace <https://jenkins.debian.net/job/reproducible_maintenance_armhf_jtk1a/ws/>
[reproducible_maintenance_armhf_jtk1a] $ /bin/sh -xe /tmp/jenkins5287492582050969504.sh
+ /srv/jenkins/bin/jenkins_master_wrapper.sh
ssh: Could not resolve hostname jtk1a-armhf-rb: Name or service not known
Tue  8 Jan 14:06:29 UTC 2019 - jtk1a-armhf-rb seems to be down, sleeping 1min before exiting with error.
Build step 'Execute shell' marked build as failure