this derivation will be built:
  /nix/store/6n77ka6jf82ksdach8x74djq9gbg7dy2-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/6n77ka6jf82ksdach8x74djq9gbg7dy2-bcachefs-module-7.0.0-39-generic.drv'...