this derivation will be built:
  /nix/store/czk9lpj5c616sgzx0z1npgb965bmw71p-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/czk9lpj5c616sgzx0z1npgb965bmw71p-bcachefs-module-7.0.0-31-generic.drv'...