sort.Slice() was released in golang 1.8 (which is in the dependency docker/docker https://github.com/moby/moby/blob/master/pkg/mount/mount.go#L109 )
sort.Slice() was released in golang 1.8 (which is in the dependency docker/docker https://github.com/moby/moby/blob/master/pkg/mount/mount.go#L109 )

docker/go-plugins-helpers