Derive or impl fmt::Debug on several structs.

Signed-off-by: Jason Volk <jason@zemos.net>

src/api/router/state.rs

@@ -2,7 +2,7 @@ use std::{ops::Deref, sync::Arc};
 
 use tuwunel_service::Services;
 
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, Debug)]
 pub struct State {
 	services: *const Services,
 }

src/core/utils/mutex_map.rs

@@ -9,10 +9,12 @@ use tokio::sync::OwnedMutexGuard as Omg;
 use crate::{Result, err};
 
 /// Map of Mutexes
+#[derive(Debug)]
 pub struct MutexMap<Key, Val> {
 	map: Map<Key, Val>,
 }
 
+#[derive(Debug)]
 pub struct Guard<Key, Val> {
 	map: Map<Key, Val>,
 	val: Omg<Val>,

src/service/services.rs

@@ -1,4 +1,4 @@
-use std::sync::Arc;
+use std::{fmt, sync::Arc};
 
 use futures::{StreamExt, TryStreamExt};
 use tokio::sync::Mutex;
@@ -177,6 +177,12 @@ pub(crate) fn services(&self) -> impl Iterator<Item = Arc<dyn Service>> + Send {
 	.into_iter()
 }
 
+impl fmt::Debug for Services {
+	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+		f.debug_struct("Services").finish()
+	}
+}
+
 #[implement(Services)]
 pub async fn start(self: &Arc<Self>) -> Result<Arc<Self>> {
 	debug_info!("Starting services...");