Time can be cruel to musicians, highlighting fumbled guitar chords and less-than-spry stage hops while obscuring the social context of once-provocative lyrics, or the depth and breadth of their artistry. And time stalked The Rolling Stones at a near-capacity Broncos Stadium at Mile High on Saturday night, particularly as rail-thin singer Mick Jagger thanked the crowd for its patience, following a heart-valve replacement that postponed the band’s original May 26 concert there. But the world’s reigning classic-rock act can still outlast many of its audience members.