A new process could not be created because of an error caused by an empty
stateDir string
$ ctr exec ...
rpc error: code = 2 desc = failed to create process state dir: mkdir : no such file or directory
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
github.com/docker/docker/pkg/archive requires Sirupsen/logrus.
So let's remove sirupsen/logrus at the moment.
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>