this derivation will be built:
  /nix/store/456l1pvlbhdss6b7fihyzrjj36q58bzc-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/456l1pvlbhdss6b7fihyzrjj36q58bzc-bcachefs-module-7.0.0-39-generic.drv'...