running cargo check with -D warnings seems to trigger a complete cache invalidation.

AND cargo check was implicitly run in clippy. In order to be future save we now ALWAYS run all CI with -D warnings.
(i verified that this works in a test pipeline)

.gitlab-ci.yml

@@ -32,7 +32,8 @@ before_script:
   - export DISABLE_GIT_LFS_CHECK=true
   - export VELOREN_ASSETS="$(pwd)/assets"
   - echo "VELOREN_ASSETS=$VELOREN_ASSETS"
-  - rm -rf target || echo "some quickfix, idk why needed"
+  - export RUSTFLAGS="-D warnings"
+  - rm -rf target || echo "it seems that sometimes OLD data is left over"
 
 workflow:
   rules:

.gitlab/CI/check.gitlab-ci.yml

@@ -3,8 +3,8 @@ check:
   stage: check
   script:
     - ln -s /dockercache/cache-all target
-    - RUSTFLAGS="-D warnings" cargo check --locked
-    - RUSTFLAGS="-D warnings" cargo check --examples --locked
+    - cargo check --locked
+    - cargo check --examples --locked
 
 code-quality:
   extends: .recompile-branch