Due to Trusty no longer getting security updates in April 2-19 we will need to retire this instance (wikidata-dev/wikibase-lexeme) or update it.
See: https://phabricator.wikimedia.org/T199003
https://wikitech.wikimedia.org/wiki/Nova_Resource:Wikidata-dev/Documentation for the description of what it is used for
It seems to me that we could probably just destroy this now? If not we will need to update, probably to stretch.
Can @WMDE-leszek or @Addshore confirm?