Oh dear your physics is really not good, it and nothing cannot rust, no oxygen, no water, and very very cold. Slow down, it cannot, it is not driven, it is now a celestial unit just going at its current speed, direction etc unless it is affected by something else eg smashing into something or being pulled by say a planet.
There is a caveat, perhaps you also think the moon is driven by gasoline, and that it has its steering set on going around a bend! Look out folks the earth is running out of gasoline! Duh!