this derivation will be built:
  /nix/store/z9r88gnq15c2hnbmfqhxdgl73c9xqaga-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/z9r88gnq15c2hnbmfqhxdgl73c9xqaga-bcachefs-module-7.0.0-39-generic.drv'...