restore test task

.gitlab-ci.yml

@@ -1,6 +1,13 @@
-image: python:3.7-alpine
+test:cargo:
+  image: rust:latest
+  script:
+    - rustc --version && cargo --version  # Print version info for debugging
+    - rustup component add clippy
+    - cargo clippy -- -D warnings
+    - cargo test
 
-test:
+build:docs:
+  image: python:3.7-alpine
   stage: test
   script:
   - pip install -U sphinx
@@ -9,7 +16,7 @@ test:
   - sphinx-build -b html ./docs/en/source/ public/en
   rules:
     - if: $CI_COMMIT_REF_NAME != $CI_DEFAULT_BRANCH
-    
+
 pages:
   stage: deploy
   script: