error:
       … while evaluating the attribute 'drvPath'
         at «https://releases.nixos.org/nixos/26.05/nixos-26.05.11628.f584496e0120/nixexprs.tar.xz?narHash=sha256-oADz%2BiVvVvE6aADkqywUEdNruts0BdExqgF20/0nd5o%3D»/lib/customisation.nix:427:7:
          426|     // {
          427|       drvPath =
             |       ^
          428|         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/g7h1h7cia44ljg4wcrhq3vca5gm5mv9k-source/nixos/lib/testing/driver-configuration.nix':

       … while evaluating the option `nodes.caddy.networking.interfaces':

       … while evaluating definitions from `/nix/store/g7h1h7cia44ljg4wcrhq3vca5gm5mv9k-source/nixos/modules/hardware/facter/networking':

       … while evaluating the option `nodes.caddy.hardware.facter.enable':

       … while evaluating the option `nodes.caddy.hardware.facter.report':

       … while evaluating the option `nodes.caddy.hardware.facter.reportPath':

       … while evaluating definitions from `/nix/store/i66i58drxvil0pcfgvg0b4x92qic5f8z-source/nixosModules/clanCore/nixos-facter.nix':

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

       error: build of '/nix/store/c32pzv31szhkqdd9nwbczdivmrjc0lil-merged-test-dir-pki.drv^out' failed: error: gave up after 9 reschedules