this derivation will be built:
  /nix/store/mc4qvbvg4ay686yzd9cw9cj6y8n9shn1-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/mc4qvbvg4ay686yzd9cw9cj6y8n9shn1-bcachefs-module-7.0.0-39-generic.drv'...