this derivation will be built:
  /nix/store/rxj4618gcnc842f6fkd5d63p44xyn8ws-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/rxj4618gcnc842f6fkd5d63p44xyn8ws-bcachefs-module-7.0.0-38-generic.drv'...