this derivation will be built:
  /nix/store/blfbsayrsdxl4ngbhdq2nk8f4wiy4qq9-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/blfbsayrsdxl4ngbhdq2nk8f4wiy4qq9-bcachefs-module-7.0.0-31-generic.drv'...