this derivation will be built:
  /nix/store/91s2qsq9zxy8vnk719p62sawi10yyf4q-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/91s2qsq9zxy8vnk719p62sawi10yyf4q-bcachefs-module-7.0.0-31-generic.drv'...