this derivation will be built:
  /nix/store/b3yg2703srwns4l52dzp8fsb6fg0n16r-bcachefs-module-7.0.0-27-generic.drv
building '/nix/store/b3yg2703srwns4l52dzp8fsb6fg0n16r-bcachefs-module-7.0.0-27-generic.drv'...