[Pkg-utopia-maintainers] Bug#1126595: dbus-system-bus-common: Many packages FTBFS with the nocheck build profile due to weird dbus/adduser error

[Santiago Vila]

Package: dbus-system-bus-common
Version: 1.16.2-2
Control: affects -1 src:biometryd src:buteo-syncfw-qml src:callaudiod src:certmonger src:click src:crmsh src:dbus-test-runner src:dee src:dioptas src:gcp src:gmenuharness src:guidata src:hfd-service src:ippsample src:libaccounts-glib src:libayatana-appindicator-glib src:libqtdbusmock src:libqtdbustest src:libusermetrics src:lomiri-account-polld src:lomiri-action-api src:lomiri-api src:lomiri-app-launch src:lomiri-download-manager src:lomiri-indicator-network src:lomiri-indicator-transfer-buteo src:lomiri-location-service src:lomiri-notifications src:lomiri-online-accounts src:lomiri-push-qml src:mir src:pydbus src:pymca src:python-renardo-lib src:python-vispy src:qmenumodel src:repowerd src:ruby-dbus src:telepathy-glib src:telepathy-logger src:u1db-qt
Severity: serious
Tags: forky sid ftbfs

Dear maintainer:

During a rebuild of all packages in unstable using the nocheck build profile,
all the above packages failed to build. The root cause is probably the same,
so I'm filing a single bug for all of them, which is easy to reassign,
initially against dbus-system-bus-common.

This is the way it fails:

Setting up dbus-system-bus-common (1.16.2-2) ...
fatal: The user `messagebus' already exists and has a password. Exiting.
dpkg: error processing package dbus-system-bus-common (--configure):
  old dbus-system-bus-common package postinst maintainer script subprocess failed with exit status 13

I've put full build logs for all the packages here:

https://people.debian.org/~sanvila/build-logs/202601/

Maybe this is related to this other bug in the shadow package:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1124795

but I'm not really sure. If the bugs are really the same and they have to be merged,
please keep the affects.

(I've put Chris in x-debbugs-cc).

Thanks.