this derivation will be built:
  /nix/store/2ixbpsjp6z4gwqrqaycx2y517b51g2gn-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/2ixbpsjp6z4gwqrqaycx2y517b51g2gn-bcachefs-module-7.0.0-39-generic.drv'...