this derivation will be built:
  /nix/store/7ha20yzc0dna69ilqz5xgqz9jwx57f4p-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/7ha20yzc0dna69ilqz5xgqz9jwx57f4p-bcachefs-module-7.0.0-39-generic.drv'...