Below are the last lines of the build log of derivation /nix/store/hmh9frpgxlaa318l7xch82ykyywvi0i8-vm-test-run-installer-lvm.drv. It was built on root@e460d1d5.packethost.net. The full log is also available.

boot-after-install # [   12.870041] systemd[1]: run-keys.mount: Succeeded.
boot-after-install # [   12.872964] systemd[1]: Unmounted /run/keys.
boot-after-install # [   12.875782] systemd[1]: Stopped target Local File Systems (Pre).
boot-after-install # [   12.879186] systemd[1]: systemd-remount-fs.service: Succeeded.
boot-after-install # [   12.882461] systemd[1]: Stopped Remount Root and Kernel File Systems.
boot-after-install # [   12.885934] systemd[1]: systemd-tmpfiles-setup-dev.service: Succeeded.
boot-after-install # [   12.889425] systemd[1]: Stopped Create Static Device Nodes in /dev.
boot-after-install # [   12.892845] systemd[1]: Reached target Shutdown.
boot-after-install # [   12.895922] systemd[1]: dev-disk-by\x2dlabel-swap.swap: Succeeded.
boot-after-install # [   12.899585] systemd[1]: Deactivated swap /dev/disk/by-label/swap.
boot-after-install # [   12.903048] systemd[1]: dev-disk-by\x2did-dm\x2dname\x2dMyVolGroup\x2dswap.swap: Succeeded.
boot-after-install # [   12.907052] systemd[1]: Deactivated swap /dev/disk/by-id/dm-name-MyVolGroup-swap.
boot-after-install # [   12.910855] systemd[1]: dev-mapper-MyVolGroup\x2dswap.swap: Succeeded.
boot-after-install # [   12.914358] systemd[1]: Deactivated swap /dev/mapper/MyVolGroup-swap.
boot-after-install # [   12.917817] systemd[1]: dev-disk-by\x2did-dm\x2duuid\x2dLVM\x2dJ2XmFJKj6Pt6LTVgFXdPL0MEJAtWfG46VuIv19DMdx3GyC2woI89FpVu5pet9ihL.swap: Succeeded.
boot-after-install # [   12.922977] systemd[1]: Deactivated swap /dev/disk/by-id/dm-uuid-LVM-J2XmFJKj6Pt6LTVgFXdPL0MEJAtWfG46VuIv19DMdx3GyC2woI89FpVu5pet9ihL.
boot-after-install # [   12.928229] systemd[1]: dev-MyVolGroup-swap.swap: Succeeded.
boot-after-install # [   12.931437] systemd[1]: Deactivated swap /dev/MyVolGroup/swap.
boot-after-install # [   12.934687] systemd[1]: dev-dm\x2d0.swap: Succeeded.
boot-after-install # [   12.937714] systemd[1]: Deactivated swap /dev/dm-0.
boot-after-install # [   12.940788] systemd[1]: dev-disk-by\x2duuid-a3e44845\x2d35c4\x2d448c\x2d8c36\x2d216b34de75a0.swap: Succeeded.
boot-after-install # [   12.945185] systemd[1]: Deactivated swap /dev/disk/by-uuid/a3e44845-35c4-448c-8c36-216b34de75a0.
boot-after-install # [   12.949299] systemd[1]: Reached target Unmount All Filesystems.
boot-after-install # [   12.952649] systemd[1]: Reached target Final Step.
boot-after-install # [   12.955693] systemd[1]: systemd-poweroff.service: Succeeded.
boot-after-install # [   12.958935] systemd[1]: Started Power-Off.
boot-after-install # [   12.962294] systemd[1]: Reached target Power-Off.
boot-after-install # [   12.965316] systemd[1]: Shutting down.
boot-after-install # [   13.240898] systemd-journald[405]: Received SIGTERM from PID 1 (systemd-shutdow).
boot-after-install # [   13.266008] systemd-shutdown[1]: Sending SIGKILL to remaining processes...
boot-after-install # [   13.272374] systemd-shutdown[1]: Unmounting file systems.
boot-after-install # [   13.275920] [745]: Remounting '/nix/store' read-only in with options 'attr2,inode64,logbufs=8,logbsize=32k,noquota'.
boot-after-install # [   13.293111] [746]: Remounting '/' read-only in with options 'attr2,inode64,logbufs=8,logbsize=32k,noquota'.
boot-after-install # [   13.297218] systemd-shutdown[1]: All filesystems unmounted.
boot-after-install # [   13.299372] systemd-shutdown[1]: Deactivating swaps.
boot-after-install # [   13.301355] systemd-shutdown[1]: All swaps deactivated.
boot-after-install # [   13.303379] systemd-shutdown[1]: Detaching loop devices.
boot-after-install # [   13.307136] systemd-shutdown[1]: All loop devices detached.
boot-after-install # [   13.309314] systemd-shutdown[1]: Detaching DM devices.
boot-after-install # [   13.333600] ACPI: Preparing to enter system sleep state S5
boot-after-install # [   13.335799] reboot: Power down
(1.03 seconds)
(1162.09 seconds)
14 out of 15 tests succeeded
The following tests have failed:
 - Test "Assert readiness of login prompt" failed with error: "unit "nixos-manual" is inactive and there are no pending jobs"
cleaning up
(0.00 seconds)
builder for '/nix/store/hmh9frpgxlaa318l7xch82ykyywvi0i8-vm-test-run-installer-lvm.drv' failed with exit code 1