Comment 1 for bug 1015667

They are indeed celeryresults (see below), non-durable with no consumers, yet holding exactly 1 message (smells like roasted celery-s?):

$ sudo rabbitmqctl -p launchpad.net list_queues messages consumers name durable auto_delete |egrep ^1|head -2
1 0 3e99e12763e24f53ac73b838dba1503d false true
1 0 f1b87ef31d864e279cec76dc65e49844 false true

$ sudo rabbitmqctl -p $vhost list_bindings source_name destination_name routing_key|egrep '(3e99|f1b8)'
        3e99e12763e24f53ac73b838dba1503d 3e99e12763e24f53ac73b838dba1503d
        f1b87ef31d864e279cec76dc65e49844 f1b87ef31d864e279cec76dc65e49844
celeryresults 3e99e12763e24f53ac73b838dba1503d 3e99e12763e24f53ac73b838dba1503d
celeryresults f1b87ef31d864e279cec76dc65e49844 f1b87ef31d864e279cec76dc65e49844