Can't boot off of encrypted volume with Linux 5.3-rc4
I'm testing out a mainline kernel to see if it fixes some hardware issues I'm having with my laptop (X1 Carbon gen 7) but I'm finding that booting any of the 5.3-rc's results in an error that seems to be related to encryption. To clarify, 5.0 from the disco repositories boots fine, as does 5.2.6 from the mainline series.
When I boot 5.3-rc4 the splash screen that normally asks for my password to decrypt the volume instead reports:
cryptsetup: Waiting for encrypted source device UUID=7de...
and if I switch back to a virtual console I see these three lines repeated:
WARNING: Filed to connect to lvmetad. Falling back to device scanning. Volume group "ubuntu-vg" not found Cannot process volume group ubuntu-vg