If even AutoZone can't beat on earnings, what hope does Advance Auto Parts have?Auto parts retailer Advance Auto Parts (AAP 7.38%) stock tumbled 6.7% through 11:55 a.m. ET Tuesday after Wall Street banker Evercore ISI cut its price target to $58 per share. Evercore can't be blamed for the entirety of Advance Auto's losses today, however. I actually suspect investors are punishing the stock more for what its rival, AutoZone (AZO 7.85%), said this morning. AutoZone earnings are Advance Auto's problemReporting ...