this derivation will be built:
  /nix/store/50alxicz1h4i7si76yd7rznfaj102mrr-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/50alxicz1h4i7si76yd7rznfaj102mrr-bcachefs-module-7.0.0-29-generic.drv'...