[Qa-jenkins-scm] Build failed in Jenkins: reproducible_maintenance_armhf_opi2c #9099

[jenkins at jenkins.debian.net]

See <https://jenkins.debian.net/job/reproducible_maintenance_armhf_opi2c/9099/display/redirect>

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[EnvInject] - Loading node environment variables.
Building remotely on opi2c-armhf-rb.debian.net (armhf opi2c) in workspace <https://jenkins.debian.net/job/reproducible_maintenance_armhf_opi2c/ws/>
[reproducible_maintenance_armhf_opi2c] $ /bin/sh -xe /tmp/jenkins5389385185166276351.sh
+ /srv/jenkins/bin/jenkins_master_wrapper.sh
Authentication failed.
Mon  1 Oct 10:25:15 UTC 2018 - opi2c-armhf-rb.debian.net seems to be down, sleeping 1min before exiting with error.
Build step 'Execute shell' marked build as failure