Orphaned subvolumes, owned by nobody, can't do anything with them – Debian

I’m running Debian Buster inside of Crostini on a Pixelbook, and am using Docker. I’d backed-up my Linux container, performed a power wash on the Chromebook, then restored the Linux container.

That’s when I started getting permission-denied issues when building containers, during the mkdir calls in my Dockerfile.

So I did the typical troubleshooting:

• uninstall/reinstall docker
• uninstall docker and run rm -rf /var/lib/docker
• kill all processes that might be using those subvolmes
• check mount for active mounts
• check /etc/fstab (which is empty?) for mounts
• check /etc/mtab (is this new?) for mounts
• reinstall docker and run docker system prune (which also didn’t touch those directories)
• even tried running btrfs subvolume delete XXXXXX

…all of which squawk at me due to a lack of permissions… this is even when I sudo su root to run the comands.

I’m a complete newbie to both Docker and definitely to BTRFS… so I’m completely stumped now.

I’m able to build containers again… since it’s building them into NEW subvolumes now… but now it’s personal… I want the following subvolumes gone!

Here they are (all inside of /var/lib/docker/btrfs/subvolumes):

drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 f96f6fbdbfd84db115c253880a0e8919b63d758d4a3f9e2645bcf959657f6c45-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 f547c01038e1479c65383ee4baba4f9212c2ca42ab9536931b1df9d8149d004f-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 efff78d70c412ad613d88e58ae0a84c058d1ccce63a588f2da8612cda2099ecc
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 e1b8aacd80a48e400052fb921cc52567a75ae210aa005519671bbf3cc1e7d3e5-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 c928040adbd4fe7ec8e71643d66c7a036436fcf52318573038153bf2d73e000e-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 bc0a723bece1df18eaf4fbc2deb108909546e2088ed4cff5c29d473881061bde
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 b52f2bf1a1404a773f6ed7bdfe1cfabb1c241e74ce846da65afbdce18b021502-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 aacc82c84f1aee572a20325d5ea3ff6ccd0604dfeecf34efc6af952d62926012-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 a5a6cd588f4995f5e8517d31bce652235bfc920ba694cc681eb5dfe4e1c24192-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 9cc9807d3c3d036f38086f52ceb2d9ebc87a14a4e3f0ba41bb4e1d89f965bf99-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 9aef1d128a4608916c01c44accc883a6069a4b8131e35568337fc5b5b4c4998e
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 8de3efc8c709f46a46362e60fcc4d948cbe543f4f1a1615ccfb21d83decb7e3e
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 815d91c859262e5e556191a03438761d97bd21556cdd3b4d75d2fbdfcbb4082c-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 7c27d56096add6bb0352dc4d8d8d9c0613d79fdf370bed04c2dfe90e90215569-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 72fb7e0f7732f59c45b7872140dc64d59aaa1e719266d3e299398d7a8040f57c
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 6e284d02177f0a6fa6aea122086a3934c0e6b8498d862df718f333bf50fd77db
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 617f090a6c681e1345fb32af0aa76d410c7e3b5353bceda11c266efaafaca09e
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 5312ab94752a8ad47a222e98c7633c0d3ca650242505ab7530f531782bffd6b1
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 4ffd4a084cac545b680fd879a891f20db814bc4b74901e26fbe1676b5a29ade1
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 4658094e3d4aeadec4e1d70023c8b20970c98543a569c5c0e3edc4caee4277c5
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 46438c1226b4684f69512bc2829e32a4e2420ae2cb1e8ab516c3439f2988bcdc-init
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 1a618f110ebebf2423780b6ee030b1e357ce9f426f877f55a1606caa0bbc107e
drwx--x--x 1 nobody nogroup  78 Jul 26 13:25 02ba91d136afc3790be35ae35c5ad022b68377edc3963cf757e4e0b6da0d3414