Enable experimental Docker features

.gitlab-ci.yml

@@ -7,7 +7,8 @@ variables:
 
 # Docker in Docker Service
 services:
-  - docker:dind
+  - name: docker:dind
+    command: ["--experimental"]
 
 before_script:
   - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY