pivot_root("/var/lib/docker/btrfs/subvolumes/648592fdb43c4df55d71f9592c2d4202d9b83dc027c10d6b5158cda8d0d4aacf", "/var/lib/docker/btrfs/subvolumes/648592fdb43c4df55d71f9592c2d4202d9b83dc027c10d6b5158cda8d0d4aacf/.pivot_root212461818") = 0