Waterbury Fire responded for a possible structure fire at 34 Brook St in the City's downtown. They arrived to find dumpster fire which had spread up the exterior wall of the Tryst Cafe and into the building's attic space. The initial structure response was E 2,4,7,Rescue Engine 1,Truck 1,3, and Cars 2 & 5. With the RIT team being put to work with concerns for the other exposure buildings E-6 was added to the assignment. The fire was quickly knocked down, roof ventilated, and positive pressure ventilation applied. While the crews picked up the fire marshal's responded to the scene to invesigate the fire.