Output Command
/summon falling_block ~ ~1 ~ {BlockState:{Name:"activator_rail"},Time:1,Passengers:[{id:"command_block_minecart",Command:"fill ~1 ~0 ~1 ~7 ~9 ~7 minecraft:stone_bricks outline"},{id:"command_block_minecart",Command:"kill @e[type=command_block_minecart,distance=..1]"}]}