Abroot upgrade on Orchid + luks completed successfully, but then fails to mount /var - new /dev/ is empty

[michal-kurz]

I had a clean install of Orchid (release 122 I think), with no prior upgrades.

After running abroot upgrade, my system fails to mount /var partition:

I also tried running the upgrade on newest abroot with the same results and saved the output this time: https://pastebin.com/e2dLe64B

I rolled back and compared root-a and root-b - both partitions were referencing luks mappers in /dev/mappers, but in root-a the /dev directory was completely empty - this seems to be the cause of failed mount to me, but I have no idea how that state was reached.