[Qa-jenkins-scm] Build failed in Jenkins: reproducible_maintenance_armhf_p64c #8480

[jenkins at jenkins.debian.net]

See <https://jenkins.debian.net/job/reproducible_maintenance_armhf_p64c/8480/display/redirect>

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Started by timer
[EnvInject] - Loading node environment variables.
Building remotely on p64c-armhf-rb.debian.net (armhf p64c) in workspace <https://jenkins.debian.net/job/reproducible_maintenance_armhf_p64c/ws/>
[reproducible_maintenance_armhf_p64c] $ /bin/sh -xe /tmp/jenkins4588030892133476384.sh
+ /srv/jenkins/bin/jenkins_master_wrapper.sh
mux_client_request_session: read from master failed: Broken pipe
ssh: connect to host p64c-armhf-rb.debian.net port 2248: Connection refused
Sat 20 Apr 04:07:00 UTC 2019 - p64c-armhf-rb.debian.net seems to be down, sleeping 1min before exiting with error.
Build step 'Execute shell' marked build as failure