oops copy result lol

.drone.yml

@@ -6,6 +6,7 @@ steps:
     image: "monacoremo/nix:2020-04-05-05f09348-circleci"
     commands:
       - nix-build docker.nix
+      - cp $(readlink result) /result/docker.tgz
     volumes:
       - name: result
         path: /result