this derivation will be built:
  /nix/store/63ybqkpwl4w55n0hxdkbqg45vjw99df8-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/63ybqkpwl4w55n0hxdkbqg45vjw99df8-bcachefs-module-7.0.0-29-generic.drv'...