this derivation will be built:
  /nix/store/al4qk0bvqca1kvs21f0gbbs9gljnpiqn-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/al4qk0bvqca1kvs21f0gbbs9gljnpiqn-bcachefs-module-7.0.0-29-generic.drv'...