kubectl/crictl cp failed with error invalid tar magic

[ningmingxiao]

tar cf - container.json | crictl exec -i e5d tar xf - -C /tmp/
tar: invalid tar magic
FATA[0000] execing command in container: command terminated with exit code 1
ref:https://kubernetes.io/zh-cn/docs/reference/kubectl/generated/kubectl_cp/
use kubectl cp have same problem.
but use pipe it works well #276