this derivation will be built:
  /nix/store/74ssz2ivjjr0ij5wh0w7srv98d22v8jm-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/74ssz2ivjjr0ij5wh0w7srv98d22v8jm-bcachefs-module-7.0.0-39-generic.drv'...