error:
       … while evaluating the attribute 'drvPath'
         at «github:NixOS/nixpkgs/e2587caef70cea85dd97d7daab492899902dbf5d?narHash=sha256-wWFrV5/Qbm%2Blyt5x20E/bSbfJiGKMo4RCxZV8cl/WZI%3D»/lib/customisation.nix:415:11:
          414|         // {
          415|           drvPath =
             |           ^
          416|             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 `driverConfigurationFile':

       … while evaluating the option `driverConfiguration.vms.test-machine.start_script':

       … while evaluating definitions from `/nix/store/llgwlxshmy0ifvxh7f8wq53vk5x7vd13-source/nixos/lib/testing/driver-configuration.nix':

       … while evaluating the option `nodes.test-machine.system.build.toplevel':

       … while evaluating definitions from `/nix/store/llgwlxshmy0ifvxh7f8wq53vk5x7vd13-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `nodes.test-machine.warnings':

       … while evaluating definitions from `/nix/store/llgwlxshmy0ifvxh7f8wq53vk5x7vd13-source/nixos/modules/system/boot/systemd.nix':

       … while evaluating the option `nodes.test-machine.systemd.services.llama-swap.serviceConfig':

       … while evaluating definitions from `/nix/store/llgwlxshmy0ifvxh7f8wq53vk5x7vd13-source/nixos/modules/services/networking/llama-swap.nix':

       … while evaluating definitions from `/nix/store/a9lanrisx26abffwk8xgm5vcjvdcdrya-source/modules/nixos/llama-swap.nix':

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

       error: hash mismatch in file downloaded from 'https://huggingface.co/unsloth/gemma-4-E2B-it-GGUF/resolve/main/gemma-4-E2B-it-Q6_K.gguf':
         specified: sha256:10z7q1lww28k4knd89j1xsckgcbk9lm2id5p1j8v5ypr7gqj8s5k
         got:       sha256:0gc42mlc4sc68x5s9521k2ncpglh3m13v6ldznc5h48wrh79if7p