Preheat the oven to 350 degrees F. In a bowl, stir together the corn sugar, brown sugar, melted butter, pecans, eggs, vanilla, and salt. Mix well then pour into the unbaked pie shell. Place the pie in the oven and bake at 350 degrees F for 45-50 minutes or until almost firm. Let the pie cool before slicing and serving. Store leftovers in a covered container in the refrigerator.