this derivation will be built:
  /nix/store/mwgxgv43f0jmnq6d8kbxxl39qbyfm6xm-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/mwgxgv43f0jmnq6d8kbxxl39qbyfm6xm-bcachefs-module-7.0.0-39-generic.drv'...