[Qa-jenkins-scm] Build failed in Jenkins: reproducible_archlinux_scheduler #2700

[jenkins at jenkins.debian.net]

See <https://jenkins.debian.net/job/reproducible_archlinux_scheduler/2700/display/redirect>

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Started by timer
[EnvInject] - Loading node environment variables.
Building on master in workspace <https://jenkins.debian.net/job/reproducible_archlinux_scheduler/ws/>
[workspace] $ /bin/sh -xe /tmp/jenkins2861179792040108776.sh
+ /srv/jenkins/bin/reproducible_archlinux_scheduler.sh
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Sat  3 Nov 18:34:14 UTC 2018 - running /srv/jenkins/bin/reproducible_archlinux_scheduler.sh (for job reproducible_archlinux_scheduler) on jenkins now.

To learn to understand this, git clone https://salsa.debian.org/qa/jenkins.debian.net.git
and then have a look at the files README, INSTALL, CONTRIBUTING and maybe TODO.

This invocation of this script, which is located in bin/reproducible_archlinux_scheduler.sh,
has been called using "" as arguments.

Please send feedback about jenkins to qa-jenkins-dev at lists.alioth.debian.org,
or as a bug against the 'jenkins.debian.org' pseudo-package,
feedback about specific job results should go to their respective lists and/or the BTS.

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Sat  3 Nov 18:34:14 UTC 2018 - start running "/srv/jenkins/bin/reproducible_archlinux_scheduler.sh" (md5sum ce3bf677146458c20c3abd5a6ca63024) as "/tmp/jenkins-script-oRJD6Eod" on jenkins.

Sat Nov  3 18:34:17 UTC 2018 - 8166 Arch Linux packages were previously known to Arch Linux.
Sat Nov  3 18:34:18 UTC 2018 - 8180 Arch Linux packages are known in our database.
archlinux-scheduler-15905
Sat Nov  3 18:34:26 UTC 2018 - updating pacman's knowledge of Arch Linux repositories (by running pacman -Syu --noconform').
:: Synchronizing package databases...
error: failed to update core (unable to lock database)
error: failed to update extra (unable to lock database)
error: failed to update community (unable to lock database)
error: failed to update multilib (unable to lock database)
error: failed to synchronize all databases
Sat  3 Nov 18:34:38 UTC 2018 - /srv/jenkins/bin/reproducible_archlinux_scheduler.sh stopped running as /tmp/jenkins-script-oRJD6Eod, which will now be removed.
Build step 'Execute shell' marked build as failure