feat(cargo-shuttle): outgoing body debug (#1828)

* feat(cargo-shuttle): outgoing body debug

* docs

cargo-shuttle/src/args.rs

@@ -35,7 +35,7 @@ pub struct ShuttleArgs {
     /// Disable network requests that are not strictly necessary. Limits some features.
     #[arg(long, env = "SHUTTLE_OFFLINE")]
     pub offline: bool,
-    /// Turn on tracing output for cargo-shuttle and shuttle libraries.
+    /// Turn on tracing output for Shuttle libraries. (WARNING: can print sensitive data)
     #[arg(long, env = "SHUTTLE_DEBUG")]
     pub debug: bool,
     /// Target Shuttle's development environment

cargo-shuttle/src/client.rs

@@ -446,6 +446,7 @@ impl ShuttleApiClient {
 
         if let Some(body) = body {
             let body = serde_json::to_string(&body)?;
+            debug!("Outgoing body: {}", body);
             builder = builder.body(body);
             builder = builder.header("Content-Type", "application/json");
         }
@@ -461,6 +462,7 @@ impl ShuttleApiClient {
 
         if let Some(body) = body {
             let body = serde_json::to_string(&body)?;
+            debug!("Outgoing body: {}", body);
             builder = builder.body(body);
             builder = builder.header("Content-Type", "application/json");
         }