It gets warmer, reason: the fridge works by putting heat out from the inside compartment and dissipating it outside. When the door is open the two processes cancel each other, but since the equipment (electrical motor and etc) isn't perfect some electrical energy doesn't do useful work and is dissipated outside as heat. This causes the room to warm up. The fridge's thermostat won't stop the process since the desired temperature is never reached. You don't need any extra information for this problem.