this derivation will be built:
  /nix/store/ac2dqvww8gj22awnblz8iyrflqlq0yay-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/ac2dqvww8gj22awnblz8iyrflqlq0yay-bcachefs-module-7.0.0-31-generic.drv'...