this derivation will be built:
  /nix/store/87r7gv58y8pbs13w1y2kl4hlmp54di6d-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/87r7gv58y8pbs13w1y2kl4hlmp54di6d-bcachefs-module-7.0.0-31-generic.drv'...