This time it will be faster as the images is already on the disk. A new container is created, ran, and exited.

$ docker ps -as

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                      PORTS               NAMES               SIZE
42bbb5394617        hello-world         "/hello"            16 minutes ago      Exited (0) 16 minutes ago                       blissful_knuth      0 B (virtual 1.84 kB)
f6239f10a6ad        hello-world         "/hello"            21 minutes ago      Exited (0) 21 minutes ago                       lucid_snyder        0 B (virtual 1.84 kB)