we store the active sandbox after daemon.containerd.Restore, but there is a chance the `Restore` will set the container to exit see (https://github.com/docker/docker/blob/master/libcontainerd/client_linux.go#L469). so we should check if the container is really running before add it to activesandbox. Signed-off-by: Lei Jitang <leijitang@huawei.com> Upstream-commit: 78f3094518b1f3f498bd2629667877f9a87d452f Component: engine