That isn't a programming language's potential. Those job posts reflect current market demand, not potential. How much demand will there be for Rust programmer

That isn't a programming language's potential. Those job posts reflect current market demand, not potential. How much demand will there be for Rust programmers three or four or ten years from now, not just today. Anyway, if you're going to take a purely mercantile approach to evaluating programming languages, you should consider the salaries these employers are offering rather than the number of job listings. Consider supply as well as demand.