At 12:54 of the third period in the Penguins/Devils game, the original call by the Referee closest to the New Jersey net was "goal" but after the four on-ice officials huddled, the call on the ice was changed to "no goal". Pittsburgh then requested a Coach's Challenge to review the "Interference on the Goalkeeper" decision that resulted in a "no goal" call.

After reviewing all available replays and consulting with NHL Hockey Operations staff, the Referee determined that Pittsburgh's Bryan Rust interfered with New Jersey goaltender Keith Kinkaid before the puck crossed the goal line.
Therefore the original call stands - no goal Pittsburgh Penguins.
Since the Coach's Challenge did not result in the original call being overturned, the Penguins forfeit their time-out.