Place trivet insert and 1/2 cup water in a 6-qt. electric pressure cooker. In a large bowl, whisk eggs, cream, brown sugar, pumpkin pie spice and vanilla until blended. Stir in bacon. Stir in bread; let stand until bread is softened, about 15 minutes. , Transfer to a greased round 2-qt. baking dish. Cover baking dish with foil. Fold an 18x12-in. piece of foil lengthwise into thirds, making a sling. Use the sling to lower the dish onto the trivet. Lock lid; close pressure-release valve. Adjust to pressure-cook on high for 20 minutes. Allow pressure to release naturally for 12 minutes; quick-release any remaining pressure., Using foil sling, carefully remove baking dish. Let stand 10 minutes. Invert French toast onto a serving dish; top with pecans and confectioners' sugar. Serve warm with maple syrup.