On some build failures, or perhaps when rebooting the boxes while a
build is ongoing, repro chroots can be left behind taking up space.

Add a service with a daily timer to remove week old chroots.

The firefox diffoscope output requires unzip for making the diff
readable.

Jelle van der Waa authored 4 years ago and Jelle van der Waa committed 4 years ago

The repro3.pkgbuild.com machine was a packet.net box with an Ubuntu
installation. Now converted to an Arch Linux installation managed by
ansible with a new rebuilderd_worker role.