king: fix unbounded queues in Pier.hs; how did I miss this
king: fix unbounded queues in Pier.hs; how did I miss this

ngzax/urbit,urbit/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,ngzax/urbit,ngzax/urbit,ngzax/urbit,urbit/urbit,ngzax/urbit,urbit/urbit,urbit/urbit,urbit/urbit,ngzax/urbit