error:
       … while evaluating the attribute 'drvPath'
         at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1087089.39ad350a0602/nixexprs.tar.xz?narHash=sha256-/4ezBOv6aldGab7qTb6ls3SDpgzG8kuuSqEAA9zEZ8E%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/n4hz2f0rhvclfbgk4adkbxi6y8sd31cf-source/nixos/lib/testing/driver-configuration.nix':

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

       … while evaluating definitions from `/nix/store/n4hz2f0rhvclfbgk4adkbxi6y8sd31cf-source/nixos/modules/hardware/facter/networking':

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

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

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

       … while evaluating definitions from `/nix/store/k7pd0dk4pm4nzfcdqdsjmigmd1lq7q7m-source/nixosModules/clanCore/nixos-facter.nix':

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

       error: build of '/nix/store/q1h8mm06ana3jj6ljhmhy9apaa9h0kli-merged-test-dir-dyndns.drv^out' failed: error: error: gRPC AddMultipleToStore on 'nix-store.geninf.io:50051' failed: error: path '/nix/store/7w43kv9n44l91xjg9x0pmqqldk6k95pb-vm' is required, but there is no substituter that can build it