At 14:27 of the second period in the Bruins/Lightning game, Boston requested a Coach's Challenge to review whether Cedric Paquette interfered with Bruins goaltender Tuukka Rask prior to Chris Kunitz's goal.

After reviewing all available replays and consulting with the Referee, NHL Hockey Operations staff confirmed no goaltender interference infractions occurred before the puck crossed the goal line.
Therefore the original call stands - good goal Tampa Bay Lightning.
Since the Coach's Challenge did not result in the original call being overturned, the Boston Bruins forfeit their time-out.