this derivation will be built:
  /nix/store/qx6ff462jdl98m3rfxdqfmvans5003an-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/qx6ff462jdl98m3rfxdqfmvans5003an-bcachefs-module-7.0.0-39-generic.drv'...