pin nightly version to fix https://github.com/tkaitchuck/aHash/issues/200

.github/workflows/docs.yml

@@ -16,6 +16,8 @@ jobs:
       - run: sudo apt-get update
       - run: sudo apt install libwebkit2gtk-4.1-dev libgtk-3-dev libayatana-appindicator3-dev libxdo-dev
       - uses: dtolnay/rust-toolchain@nightly
+        with:
+          toolchain: nightly-2024-02-01
       - uses: Swatinem/rust-cache@v2
         with:
           cache-all-crates: "true"