docs: fix doc test in README.md

1) fix doc test in readme
2) fix some fmt

Signed-off-by: jokemanfire <[email protected]>

Author: jokemanfire

.github/workflows/ci.yml

@@ -99,22 +99,13 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
 
-      - name: Cache dependencies
-        uses: actions/cache@v3
-        with:
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-            target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: ${{ runner.os }}-cargo-
+      - uses: Swatinem/rust-cache@v2
 
       - name: Generate documentation
         run: |
           cargo doc --no-deps -p rmcp -p rmcp-macros
-        # there must be no warnings , doc hasn't been fix yet, so skip it
-        # env:
-          # RUSTDOCFLAGS: -Dwarnings
+        env:
+          RUSTDOCFLAGS: -Dwarnings
 
   release:
     name: Release crates

README.md

@@ -24,9 +24,13 @@ Start a client in one line:
 use rmcp::{ServiceExt, transport::TokioChildProcess};
 use tokio::process::Command;
 
-let client = ().serve(
-    TokioChildProcess::new(Command::new("npx").arg("-y").arg("@modelcontextprotocol/server-everything"))?
-).await?;
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let client = ().serve(
+        TokioChildProcess::new(Command::new("npx").arg("-y").arg("@modelcontextprotocol/server-everything"))?
+    ).await?;
+    Ok(())
+}
 ```
 
 #### 1. Build a transport

crates/rmcp/src/lib.rs

@@ -1,4 +1,3 @@
-#![doc = include_str!("../../../README.md")]
 mod error;
 pub use error::Error;
 

examples/servers/src/common/counter.rs

@@ -164,14 +164,13 @@ impl ServerHandler for Counter {
         match name.as_str() {
             "example_prompt" => {
                 let message = arguments
-                    .and_then(
-                        |json|
-                            json.get("message")
-                                ?.as_str()
-                                .map(|s| s.to_string()))
-                    .ok_or_else(|| McpError::invalid_params("No message provided to example_prompt", None))?;
-
-                let prompt = format!("This is an example prompt with your message here: '{message}'");
+                    .and_then(|json| json.get("message")?.as_str().map(|s| s.to_string()))
+                    .ok_or_else(|| {
+                        McpError::invalid_params("No message provided to example_prompt", None)
+                    })?;
+
+                let prompt =
+                    format!("This is an example prompt with your message here: '{message}'");
                 Ok(GetPromptResult {
                     description: None,
                     messages: vec![PromptMessage {