When doing `docker start -a` on a container that won't start, terminal was getting stuck on the attach, even after container removal. Docker-DCO-1.1-Signed-off-by: Brian Goff <cpuguy83@gmail.com> (github: cpuguy83) Upstream-commit: 9ae9d7db574083ce6233b33e8b0bbefb219d7fe6 Component: engine