Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -1,6 +1,7 @@
 image: rust:latest
 
-cache: &rust_cache
+.rust_cache: &rust_cache
+  cache: &rust_cache
     # key: $CI_COMMIT_REF_SLUG
     paths:
         # Don't include `incremental` to save space
@@ -28,7 +29,6 @@ stages:
 format:
   except:
     - tags
-  cache:
   <<: *rust_cache
   script:
     - echo "nightly" > rust-toolchain
@@ -38,7 +38,6 @@ format:
 check:
   except:
     - tags
-  cache:
   <<: *rust_cache
   script:
     - rustup component add clippy
@@ -50,7 +49,6 @@ check:
 test:
   except:
     - tags
-  cache:
   <<: *rust_cache
   script:
     - cargo test
@@ -58,7 +56,6 @@ test:
 release:
   only:
     - tags
-  cache:
   <<: *rust_cache
   script:
     - make && make vendor
@@ -71,7 +68,6 @@ pages:
   stage: deploy
   only:
     - tags
-  cache:
   <<: *rust_cache
   script:
     - cargo doc --document-private-items --no-deps --workspace