Heat oven to 375. In large bowl, combine bread cubes, melted margaring, raisins and cinnamon; mix well and transfer to 2 quart baking dish. Use same bowl to beat eggs. Stir in sugar, vanilla and salt until sugar is dissolved. Slowly whisk in hot milk. Pour egg mixture over bread cubes and sprinkle with nutmeg, set aside to soak for 5 minutes. Bake in preheated oven for 25 to 30 minutes, or until knife inserted into center comes out clean.