error:
       … while evaluating the attribute 'drvPath'
         at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1079672.79b6d20e5559/nixexprs.tar.xz?narHash=sha256-7dZDc7YUsLkMH2GAKunEeSV1Z32Zk3ssnwxV6ei575k%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/mqh8wsjzzvzpsnqyyh4klw0ph4a78cjl-source/nixos/lib/testing/driver-configuration.nix':

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

       … while evaluating definitions from `/nix/store/mqh8wsjzzvzpsnqyyh4klw0ph4a78cjl-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/fdj7n8si088wabiyrmavsz9hi44n363z-source/nixosModules/clanCore/nixos-facter.nix':

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

       error: opening a connection to remote store 'grpc://nix-store.geninf.io:50051' previously failed