I bet there are a few old lucid boxes that have never been purged, despite them being broken for a long time (ssh should no longer work on them for a long time). Find, notify owners, delete.
Searching via wikitech, I see:
nginx-dev1 has disappeared (assumed deleted), labs-vmbuilder-lucid is now running for some reason, opengrok-web is still in error status (and I'm expecting it to be deleted in the purge in two months), and the conventionextension project was deleted.
So now, we're waiting for opengrok-web to go in https://wikitech.wikimedia.org/wiki/Purge_2016 and we can safely say labs-vmbuilder-lucid should never be needed again, that can then be deleted, and this will be resolved.
The four instances mentioned in this task have been deleted: