The Chicago band Knuckle Puck got its start in the early 2010s playing covers around the suburbs. But over the last decade, the five-piece has built a cult following with their mix of emo, pop-punk and hardcore. The band’s debut album, “Copacetic,” turns 10 this year, and the group is playing Riot Fest this weekend in celebration with an album-play performance. The record found early success and was lauded by audiences for breathing new life into pop-punk.