[Qa-jenkins-scm] Build failed in Jenkins: reproducible_maintenance_amd64_profitbricks3 #497

[jenkins at jenkins.debian.net]

See <https://jenkins.debian.net/job/reproducible_maintenance_amd64_profitbricks3/497/>

------------------------------------------
Started by timer
Building remotely on profitbricks-build3-amd64.debian.net (profitbricks3 amd64) in workspace <https://jenkins.debian.net/job/reproducible_maintenance_amd64_profitbricks3/ws/>
[reproducible_maintenance_amd64_profitbricks3] $ /bin/sh -xe /tmp/hudson6555080510981394010.sh
+ /srv/jenkins/bin/jenkins_master_wrapper.sh
====================================================================================

Sat Dec 12 12:09:00 UTC 2015 - running /srv/jenkins/bin/reproducible_maintenance.sh () on profitbricks-build3-amd64 now.

To learn to understand this, clone git.debian.org/git/qa/jenkins.debian.net.git
and then have a look at bin/reproducible_maintenance.sh

This invocation of the script has been called using "" as arguments.

====================================================================================
Sat Dec 12 12:09:00 UTC 2015 - start running "/srv/jenkins/bin/reproducible_maintenance.sh" (md5sum e921c188c45c6dc3bb48ecf0f6b7a488) as "/tmp/jenkins-script-BFMYNSfn" on profitbricks-build3-amd64.

Sat Dec 12 12:09:00 UTC 2015 - updating the schroots and pbuilder now...
Sat Dec 12 12:09:01 UTC 2015 - updating the testing/amd64 schroot now.
Sat Dec 12 12:09:01 UTC 2015 - updating pbuilder for testing/amd64 now.
Sat Dec 12 12:09:01 UTC 2015 - updating the unstable/amd64 schroot now.
Sat Dec 12 12:09:01 UTC 2015 - updating pbuilder for unstable/amd64 now.
Sat Dec 12 12:09:01 UTC 2015 - updating the experimental/amd64 schroot now.
Sat Dec 12 12:09:01 UTC 2015 - updating pbuilder for experimental/amd64 now.
Sat Dec 12 12:09:01 UTC 2015 - updating Archlinux schroot now.
:: 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 synchronize any databases
error: failed to init transaction (unable to lock database)
error: could not lock database: File exists
  if you're sure a package manager is not already
  running, you can remove /var/lib/pacman/db.lck
Sat Dec 12 12:09:01 UTC 2015 - /srv/jenkins/bin/reproducible_maintenance.sh stopped running as /tmp/jenkins-script-BFMYNSfn, which will now be removed.
Build step 'Execute shell' marked build as failure