this derivation will be built:
  /nix/store/bvid34nlcda0aiqad360z1d4q5vkdigk-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/bvid34nlcda0aiqad360z1d4q5vkdigk-bcachefs-module-7.0.0-39-generic.drv'...