this derivation will be built:
  /nix/store/sz6kwl07ljw57jwm2xcczci5k303ar07-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/sz6kwl07ljw57jwm2xcczci5k303ar07-bcachefs-module-7.0.0-39-generic.drv'...