tpruvot/cpuminer-multi is a multi-threaded CPU miner, fork of pooler's cpuminer (see AUTHORS for list of contributors).
It can mine almost all crypto currencies using CPU. This means you're a lot less likely to get a block, so you might want to join a pool like https://www.multipool.us/dashboard/help/
$ docker run --rm wernight/cpuminer-multi cpuminer --cputest