Replace manual Debug impl with educe in tor-guardmgr

Cargo.lock

@@ -3303,6 +3303,7 @@ name = "tor-guardmgr"
 version = "0.1.0"
 dependencies = [
  "derive_builder",
+ "educe",
  "futures",
  "humantime-serde",
  "itertools",
@@ -3311,6 +3312,7 @@ dependencies = [
  "retain_mut",
  "serde",
  "thiserror",
+ "tor-bytes",
  "tor-config",
  "tor-error",
  "tor-linkspec",

crates/tor-guardmgr/Cargo.toml

@@ -18,6 +18,7 @@ default = []
 testing = []
 
 [dependencies]
+tor-bytes = { path="../tor-bytes", version = "0.1.0"}
 tor-config = { path="../tor-config", version = "0.1.0"}
 tor-error = { path="../tor-error", version = "0.1.0"}
 tor-netdir = { path="../tor-netdir", version = "0.1.0"}
@@ -29,6 +30,7 @@ tor-rtcompat = { path="../tor-rtcompat", version = "0.1.0"}
 tor-units = { path="../tor-units", version = "0.1.0"}
 
 derive_builder = "0.10"
+educe = "0.4.6"
 futures = "0.3.14"
 humantime-serde = "1"
 itertools = "0.10.1"

crates/tor-guardmgr/src/pending.rs

@@ -9,17 +9,20 @@
 //! handled via [`GuardUsable`].
 use crate::{daemon, GuardId};
 
+use educe::Educe;
 use futures::{
     channel::{mpsc::UnboundedSender, oneshot},
     Future,
 };
 use pin_project::pin_project;
-use std::fmt::{self, Debug};
+use std::fmt::Debug;
 use std::pin::Pin;
 use std::sync::atomic::{AtomicU64, Ordering};
 use std::task::{Context, Poll};
 use std::time::Instant;
 
+use tor_bytes::skip_fmt;
+
 /// A future used to see if we have "permission" to use a guard.
 ///
 /// For efficiency, the [`GuardMgr`](crate::GuardMgr) implementation sometimes gives
@@ -101,6 +104,8 @@ pub enum GuardStatus {
 /// The `GuardMgr` needs to know about these statuses, so that it can tell
 /// whether the guard is running or not.
 #[must_use = "You need to report the status of any guard that you asked for"]
+#[derive(Educe)]
+#[educe(Debug)]
 pub struct GuardMonitor {
     /// The Id that we're going to report about.
     id: RequestId,
@@ -119,19 +124,10 @@ pub struct GuardMonitor {
     /// TODO: This doesn't really need to be an Option, but we use None
     /// here to indicate that we've already used the sender, and it can't
     /// be used again.
+    #[educe(Debug(method = "skip_fmt"))]
     snd: Option<UnboundedSender<daemon::Msg>>,
 }
 
-impl Debug for GuardMonitor {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        f.debug_struct("GuardMonitor")
-            .field("id", &self.id)
-            .field("pending_status", &self.pending_status)
-            .field("ignore_indeterminate", &self.ignore_indeterminate)
-            .finish_non_exhaustive()
-    }
-}
-
 impl GuardMonitor {
     /// Create a new GuardMonitor object.
     pub(crate) fn new(id: RequestId, snd: UnboundedSender<daemon::Msg>) -> Self {