this derivation will be built:
  /nix/store/7kymm4v6d1qi7zhghc6fmk96q5xiknxl-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/7kymm4v6d1qi7zhghc6fmk96q5xiknxl-bcachefs-module-7.0.0-31-generic.drv'...