Fail docs on warnings

.gitlab-ci.yml

@@ -13,7 +13,7 @@
 #   image:                           parity/tools:latest # Any docker image (required)
 #   allow_failure:                   true # Allow the pipeline to continue if this job fails (default: false)
 #   dependencies:
-#     - build-rust-doc-release # Any jobs that are required to run before this job (optional)
+#     - build-rust-doc # Any jobs that are required to run before this job (optional)
 #   variables:
 #     MY_ENVIRONMENT_VARIABLE:       "some useful value" # Environment variables passed to the job (optional)
 #   script:
@@ -426,21 +426,29 @@ build-macos-subkey:
   tags:
     - osx
 
-build-rust-doc-release:
+build-rust-doc:
   stage:                           build
   <<:                              *docker-env
+  # FIXME: remove after the docs get fixed
   allow_failure:                   true
   artifacts:
     name:                          "${CI_JOB_NAME}_${CI_COMMIT_REF_NAME}-doc"
     when:                          on_success
     expire_in:                     7 days
     paths:
     - ./crate-docs
-  <<:                              *build-only
   script:
     - rm -f ./crate-docs/index.html # use it as an indicator if the job succeeds
-    - BUILD_DUMMY_WASM_BINARY=1 RUSTDOCFLAGS="--html-in-header $(pwd)/.maintain/rustdoc-header.html" time cargo +nightly doc --release --all --verbose
-    - cp -R ./target/doc ./crate-docs
+    - BUILD_DUMMY_WASM_BINARY=1 RUSTDOCFLAGS="--html-in-header $(pwd)/.maintain/rustdoc-header.html" 
+        time cargo +nightly doc --no-deps --workspace --all-features --verbose --target-dir ./crate-docs |& tee output.log
+    - echo "____Docs job successful, checking for warnings____"
+    - sed -n '/^warning:/,/^$/p' output.log > ${CI_COMMIT_SHORT_SHA}_warnings.log
+    - if [ -s ${CI_COMMIT_SHORT_SHA}_warnings.log ]; then
+        cat ${CI_COMMIT_SHORT_SHA}_warnings.log;
+        exit 1;
+      else
+        echo "___No warnings___";
+      fi
     - echo "<meta http-equiv=refresh content=0;url=sc_service/index.html>" > ./crate-docs/index.html
     - sccache -s
 
@@ -556,7 +564,7 @@ publish-s3-doc:
   image:                           parity/awscli:latest
   allow_failure:                   true
   dependencies:
-    - build-rust-doc-release
+    - build-rust-doc
   cache:                           {}
   <<:                              *build-only
   <<:                              *kubernetes-build