this derivation will be built:
  /nix/store/js19w6ndlr340kz8iwjvdvifq0aqkqry-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/js19w6ndlr340kz8iwjvdvifq0aqkqry-bcachefs-module-7.0.0-39-generic.drv'...