this derivation will be built:
  /nix/store/k6skschf84wsk5czk1l7q3jq8l00m9j2-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/k6skschf84wsk5czk1l7q3jq8l00m9j2-bcachefs-module-7.0.0-29-generic.drv'...