What does 1 Samuel 14:33 mean?

Someone told Saul, 'Look, the troops are sinning against God by eating meat with the blood still in it.' Saul said, 'You’ve betrayed God. Roll a big stone over here right now.' 1 Samuel 14:33 - Modern Text Bible

(Saul is told about the violation and tries to fix it, but the situation is already out of control.)