if err = checkPathLength(dstFilePath); err != nil {
		return err
	}
	if srcIsDir {
		// If source is a directory, we expect the destination to be non-existent but we
		// we still need to allow overwriting an empty directory since it represents
		// an object empty directory.
		dirInfo, err := Lstat(dstFilePath)
		if isSysErrIO(err) {
			return errFaultyDisk
		}
		if err != nil {