Trivia - Papal Coronation Quote

Question: During the papal coronation, newly elected Popes are traditionally told "Annos Petri non videbis".  What does this statement mean and to whom does it refer?

Answer: He will not see the years of Peter. St. Peter is recognized as the longest reigning Pope with a reign of about 35 years. No other Pope has reigned as long, possibly including the subject of the current coronation.