this derivation will be built:
  /nix/store/x2fl0kdfybjj51ml2bqb9qgw127dax4m-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/x2fl0kdfybjj51ml2bqb9qgw127dax4m-bcachefs-module-7.0.0-29-generic.drv'...