this derivation will be built:
  /nix/store/gbkwnb5l8na575q89081l72ms4x7b0pv-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/gbkwnb5l8na575q89081l72ms4x7b0pv-bcachefs-module-7.0.0-29-generic.drv'...