this derivation will be built:
  /nix/store/278hxmydlvh5a7wksjm68gravqbd3hqp-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/278hxmydlvh5a7wksjm68gravqbd3hqp-bcachefs-module-7.0.0-28-generic.drv'...