this derivation will be built:
  /nix/store/dq6dsxa30rp03136jwxg6r3cah8aalgr-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/dq6dsxa30rp03136jwxg6r3cah8aalgr-bcachefs-module-7.0.0-31-generic.drv'...