fix:

action.yml

@@ -112,6 +112,41 @@ runs:
         if [[ ! -v RUSTUP_UPDATE_ROOT ]]; then 
           echo "RUSTUP_UPDATE_ROOT=https://rsproxy.cn/rustup" >> $GITHUB_ENV
         fi
+        if [[ ! -f ~/.cargo/config ]]; then
+          mkdir -p ~/.cargo
+          cat > ~/.cargo/config <<EOF
+[source.crates-io]
+replace-with = 'rsproxy-sparse'
+
+[source.rsproxy]
+registry = "https://rsproxy.cn/crates.io-index" 
+
+[source.rsproxy-sparse]
+registry = "sparse+https://rsproxy.cn/index/" 
+
+[registries.rsproxy]
+index = "https://rsproxy.cn/crates.io-index" 
+
+[net]
+git-fetch-with-cli = true
+EOF
+        fi
+
+    - name: Install Rust toolchain
+      if: runner.os == 'Windows'
+      shell: bash
+      run: |
+        if ! command -v rustup &> /dev/null ; then
+          curl --proto '=https' --tlsv1.2 --retry 10 --retry-connrefused -fsSL "https://rsproxy.cn/rustup-init.exe" -o rustup-init.exe
+          powershell -Command .\rustup-init.exe -y
+        fi
+
+    - name: Cache Rust toolchain
+      uses: actions/cache@v3
+      env:
+        cache_key: ${{ runner.os }}-rustup-${{ runner.arch }}-${{ runner.temp }}-${{ hashFiles('**/rust-toolchain', '**/rust-toolchain.toml') }}
+      with:
+        path: ${{ runner.temp }}/cargo-home
 
     - name: Install Rust Problem Matcher
       if: inputs.matcher == 'true'