return fmt.Errorf("copy: %v", err)
			}
		}
	}
	return nil
}

// RunSave handles the --save portion. Part of this is done by buildx natively - it will emit .tar
// files. We need tar.gz though, so we have a bit more work to do
func RunSave(a Args, files map[string]string) error {
	if !a.Save {
		return nil
	}