add cache, fix stage, artifacts

.gitlab-ci.yml

@@ -5,7 +5,13 @@ image: "rust:latest"
 #    - rustc --version && cargo --version  # Print version info for debugging
 #    - cargo test --workspace --verbose
 
+cache:
+  key: ${CI_COMMIT_REF_SLUG}
+  paths:
+    - target/
+
 build:cargo:
+  stage: build
   script:
     - rustc --version && cargo --version  # Print version info for debugging
     - cargo build --release
@@ -13,4 +19,4 @@ build:cargo:
     - cp -vrt dist target/release/gardenserver templates
   artifacts:
     paths:
-      - dist
+      - dist/