fix?

.gitlab-ci.yml

@@ -18,13 +18,16 @@ build:
     - cd build
     - ls
     - gzip -v -9 -S .gz test.log
-    - tar cjf coverage-report.tar.bz2 coverage-report
     - pwd
+  artifacts:
+    expire_in: 1 week
+    paths:
+      - build/coverage-report
+    when: on_success
   artifacts:
     expire_in: 1 week
     paths:
       - build/test.log.gz
-      - build/coverage-report.tar.bz2
     when: on_failure
     reports:
       junit: