In a liquid measuring cup, add the simple syrup and top with the beer, mixing together until incorporated. Pour 1 inch of the beer syrup into each popsicle mold, and place into the freezer for 30 – 45 minutes to set. Remove from the freezer and divide the diced mango between the molds, then sprinkle in a pinch or two of the ancho powder and a few grains of salt. Fill the molds 3/4 full or to the fill line in the mold, add in the top or stick into each and put back in the freezer. Freeze until firm, from about 5 hours to overnight.