fix: missing_debug_implementations

Signed-off-by: Jonathan Woollett-Light <[email protected]>

src/lib.rs

@@ -1,3 +1,5 @@
+#![warn(missing_debug_implementations)]
+
 use std::collections::HashMap;
 use std::os::unix::io::{AsRawFd, RawFd};
 
@@ -11,6 +13,7 @@ fn errno() -> i32 {
     unsafe { *libc::__errno_location() }
 }
 
+#[derive(Debug)]
 pub struct BufferedEventManager {
     event_manager: EventManager,
     // TODO The length is always unused, a custom type could thus save `size_of::<usize>()` bytes.
@@ -91,6 +94,22 @@ pub struct EventManager {
     events: HashMap<RawFd, Action>,
 }
 
+impl std::fmt::Debug for EventManager {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("EventManager")
+            .field("epfd", &self.epfd)
+            .field(
+                "events",
+                &self
+                    .events
+                    .iter()
+                    .map(|(k, v)| (*k, v as *const _ as usize))
+                    .collect::<HashMap<_, _>>(),
+            )
+            .finish()
+    }
+}
+
 impl EventManager {
     /// Add an entry to the interest list of the epoll file descriptor.
     ///