Heat oven to 350 F. Mix cinnamon and sugars together. Brush both sides of bread with margarine and place on cookie sheet. Sprinkle with cinnamon and sugar mixture and toast in oven approx 5 min. Cool and cut into cubes or crumble gently into casserole. Mix eggs, leftover sugar mixture, vanilla, and salt and add to scalded milk slowly. Sprinkle raisins over bread and pour milk mixture over all. Place casserole in 9x9x2 square pan on oven rack; pour very hot water (1 in deep) into pan. Bake until knife inserted half way between edge and center comes out clean, 65-70 min. Remove from oven. Serve warm or cool.