Check docs-rs

.github/workflows/ci.yml

@@ -49,8 +49,21 @@ jobs:
       - name: check-fmt
         run: cargo fmt --check
 
+  docs_rs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@v1
+        with:
+          target: riscv32imc-unknown-none-elf,riscv32imac-unknown-none-elf,riscv32imafc-unknown-none-elf
+          toolchain: nightly
+          components: rust-src
+      - uses: Swatinem/rust-cache@v2
+
+      - name: install docs-rs
+        run: cargo install cargo-docs-rs
       - name: docs-rs
-        run: cargo install cargo-docs-rs && cd esp-wifi && cargo docs-rs
+        run: cd esp-wifi && cargo docs-rs
 
   builds:
     strategy: