this derivation will be built:
  /nix/store/njfrwx0ksws6qa5x6b80s3zxpb08hsk9-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/njfrwx0ksws6qa5x6b80s3zxpb08hsk9-bcachefs-module-7.0.0-39-generic.drv'...