Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -33,12 +33,17 @@ build:
 
 test-tools:
   stage: test
+  dependencies: 
+    - build
   script:
+    - ls -a
     - ls -a target/debug
     - ./src/tools/trace-sched-event -l 10
 
 test:cargo:
   stage: test
+  dependencies: 
+    - build
   script:
     - echo "Done."
     # - rustc --version && cargo --version  # Print version info for debugging