this derivation will be built:
  /nix/store/z73gvbfz1605p13lrh7awsr693x1cgag-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/z73gvbfz1605p13lrh7awsr693x1cgag-bcachefs-module-7.0.0-34-generic.drv'...