this derivation will be built:
  /nix/store/vp9n8flrgg5sr4hbj15jfv7g666dspaf-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/vp9n8flrgg5sr4hbj15jfv7g666dspaf-bcachefs-module-7.0.0-34-generic.drv'...