error:
       … while evaluating the attribute 'drvPath'
         at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1078969.34ca302a9572/nixexprs.tar.xz?narHash=sha256-nuO5fxDxKTeYxSEfD4mVB%2BXwzOy5qj9T2LxVc5vk4Bc%3D»/lib/customisation.nix:416:11:
          415|         // {
          416|           drvPath =
             |           ^
          417|             assert condition;

       … while calling the 'derivationStrict' builtin
         at «nix-internal»/derivation-internal.nix:37:12:
           36|
           37|   strict = derivationStrict drvAttrs;
             |            ^
           38|

       … while evaluating the option `driverConfiguration.vlans':

       … while evaluating definitions from `/nix/store/9kj7xplg18izvf8mx4s7q5kzqpw6pcw4-source/nixos/lib/testing/driver-configuration.nix':

       … while evaluating the option `containers.machine.networking.interfaces':

       … while evaluating definitions from `/nix/store/9kj7xplg18izvf8mx4s7q5kzqpw6pcw4-source/nixos/modules/hardware/facter/networking':

       … while evaluating the option `containers.machine.hardware.facter.enable':

       … while evaluating the option `containers.machine.hardware.facter.report':

       … while evaluating the option `containers.machine.hardware.facter.reportPath':

       … while evaluating definitions from `/nix/store/kym2ijnk6j3z1i8wa5zhl3ys58nfsnfc-source/nixosModules/clanCore/nixos-facter.nix':

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: Cannot build '/nix/store/3ggbd2jpcfxaba1yc91vvay0p59sl3x4-merged-test-dir-localbackup.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/z8h2byqv64ap17iz2cqb0q7175bj07r2-merged-test-dir-localbackup