this derivation will be built:
  /nix/store/bcjd1b95mrv930sn8mld021ww1j7w1f6-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/bcjd1b95mrv930sn8mld021ww1j7w1f6-bcachefs-module-7.0.0-39-generic.drv'...