this derivation will be built:
  /nix/store/n8x490yv3qxa91yjdfs3kdwc38q4cn5m-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/n8x490yv3qxa91yjdfs3kdwc38q4cn5m-bcachefs-module-7.0.0-39-generic.drv'...