this derivation will be built:
  /nix/store/1acq9v2mf5ga4lvipbaqa354ar6axppf-bcachefs-module-7.0.0-26-generic.drv
building '/nix/store/1acq9v2mf5ga4lvipbaqa354ar6axppf-bcachefs-module-7.0.0-26-generic.drv'...