To cry wolf means to falsely raise an alarm, and in this sentence James Carson would never do that.
Consider the statement "He, James Carson, would become a character in a Farley Mowat novel, lost in the barrens, and never falsely raise an alarm.". Is the statement "He, James Carson, would become a character in a Farley Mowat novel, lost in the barrens, never cry wolf." false? Yes/no/unknown