CI: cargo +nightly doc with nightly lints

Author: peter-lyons-kehl

.github/workflows/main.yml

@@ -21,16 +21,31 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Tests
+      - name: rustup components
         shell: sh
         run: |
           rustup component add clippy rustfmt
+          rustup install nightly --profile minimal
+          rustup +nightly component add miri
+
+      - name: Clippy, fmt
+        shell: sh
+        run: |
           cargo clippy
           cargo fmt --check
+
+      - name: Doc (stable, nightly)
+        shell: sh
+        run: |
           cargo doc --no-deps --quiet
+          RUSTDOCFLAGS="--forbid rustdoc::invalid_codeblock_attributes \
+            --forbid rustdoc::missing_doc_code_examples \
+            -Zcrate-attr=feature(rustdoc_missing_doc_code_examples)" \
+            cargo +nightly doc --no-deps --quiet
+
+      - name: Tests (debug, release, MIRI)
+        shell: sh
+        run: |
           cargo test
           cargo test --release
-          rustup install nightly --profile minimal
-          rustup +nightly component add miri
           cargo +nightly miri test
-          RUSTDOCFLAGS="--forbid rustdoc::invalid_codeblock_attributes --forbid rustdoc::missing_doc_code_examples -Zcrate-attr=feature(rustdoc_missing_doc_code_examples)" cargo +nightly doc