That would replace your former colonists brain (and with it personality, everything) with that of a scheming highly intelligent centuries old mechanoid (who, like his brethren, most probably doesn't like humans).
Giving it a body and the capability to act/roam freely in your colony most probably would be the last conscious thing you would be able to do, before you all are enslaved by your new AI overlord
Giving it a body and the capability to act/roam freely in your colony most probably would be the last conscious thing you would be able to do, before you all are enslaved by your new AI overlord