this derivation will be built:
  /nix/store/l8zn09f2yklwgplh3d7k7qqjsryfr8qf-bcachefs-module-7.0.0-27-generic.drv
building '/nix/store/l8zn09f2yklwgplh3d7k7qqjsryfr8qf-bcachefs-module-7.0.0-27-generic.drv'...