Locked In
Since the crew members were locked in their rooms and asleep, by the time it must have been clear that something was wrong on the boat, it was too late. This rendered them unable to escape in time before the ship sank.
An Exception
One crew member named Harrison Okene, who is a Nigerian cook, happened to have left his room to go to the bathroom in the middle of the night. He had no idea that this sleepy trip to the bathroom would end up saving his life.