Minecraft Roomba

/summon silverfish ~ ~2 ~ {CustomName:"Broken Roomba",CustomNameVisible:1,Silent:1,Invulnerable:1,ActiveEffects:[{Id:14,Amplifier:1,Duration:30000006,ShowParticles:0b},{Id:1,Amplifier:1,Duration:34000,ShowParticles:0b}],Attributes:[{Name:generic.attackDamage,Base:0},{Name:generic.knockbackResistance,Base:1}],Passengers:[{id:"hopper_minecart",CustomName:"Roomba",CustomNameVisible:1}]}