Add a test that call cargo doc for many crates in the ecosystem

I expect this to fail for now since we have a bug

Author: ogoffart

.github/workflows/rust.yml

@@ -22,26 +22,55 @@ jobs:
           - nightly
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@master
         with:
-          profile: minimal
           toolchain: ${{ matrix.rust }}
-          override: true
       - name: Run tests
         run: cargo test --verbose --all-features
       - name: Run docs
-        run: cargo doc --verbose 
+        run: cargo doc --verbose
   format:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Install latest stable
-        uses: actions-rs/toolchain@v1
-        with:
-            toolchain: stable
-            override: true
-            components: rustfmt
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
       - name: Run rustfmt
         run: cargo fmt --all -- --check
+
+
+  crater:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - name: setup patch
+        run: |
+          echo "" >> ~/.cargo/config.toml
+          echo [patch.crates-io] >> ~/.cargo/config.toml
+          echo document-features = { path = \"$GITHUB_WORKSPACE\" } >> ~/.cargo/config.toml
+      - name: create project and generate docs
+        run: |
+          cd ~
+          cargo new crater
+          cd crater
+          cargo add quick-xml -F document-features
+          cargo add serde_with -F guide
+          cargo add serial_test -F document-features
+          cargo add wpu-core
+          cargo add wpu
+          cargo add gix -F document-features
+          cargo add kstring -F document-features
+          cargo add ratatui -F document-features
+          cargo add re_types
+          cargo add slint -F document-features
+          cargo add egui-winit -F document-features
+          cargo add ehttp
+          cargo add snapbox -F document-features
+          cargo add fast-image-resize
+          cargo add rhai -F document-features
+          cargo add embassy-executor
+          cargo add embassy-time
+
+          cargo doc
+          not grep -r "No documented features in Cargo.toml" target/doc