diff --git a/bindings_node/src/message.rs b/bindings_node/src/message.rs
index 9b6e3134f..0d8172a50 100644
--- a/bindings_node/src/message.rs
+++ b/bindings_node/src/message.rs
@@ -85,7 +85,7 @@ impl From<ListMessagesOptions> for MsgQueryArgs {
     MsgQueryArgs {
       sent_before_ns: opts.sent_before_ns,
       sent_after_ns: opts.sent_after_ns,
-      delivery_status: delivery_status,
+      delivery_status,
       limit: opts.limit,
       direction,
       ..Default::default()
diff --git a/xmtp_mls/src/groups/group_metadata.rs b/xmtp_mls/src/groups/group_metadata.rs
index bdfe885aa..a5db2534f 100644
--- a/xmtp_mls/src/groups/group_metadata.rs
+++ b/xmtp_mls/src/groups/group_metadata.rs
@@ -1,3 +1,5 @@
+use std::fmt::Display;
+
 use openmls::{extensions::Extensions, group::MlsGroup as OpenMlsGroup};
 use prost::Message;
 use thiserror::Error;
@@ -188,12 +190,12 @@ where
     }
 }
 
-impl<Id> ToString for DmMembers<Id>
+impl<Id> Display for DmMembers<Id>
 where
     Id: AsRef<str>,
 {
-    fn to_string(&self) -> String {
-        String::from(self)
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", String::from(self))
     }
 }
 
diff --git a/xmtp_mls/src/groups/mod.rs b/xmtp_mls/src/groups/mod.rs
index e633fed65..b41218bba 100644
--- a/xmtp_mls/src/groups/mod.rs
+++ b/xmtp_mls/src/groups/mod.rs
@@ -1136,7 +1136,7 @@ impl<ScopedClient: ScopedGroupClient> MlsGroup<ScopedClient> {
             &dm_id[..inbox_id.len()]
         };
 
-        return Ok(target_inbox.to_string());
+        Ok(target_inbox.to_string())
     }
 
     /// Find the `consent_state` of the group
@@ -1674,16 +1674,13 @@ pub(crate) mod tests {
     use diesel::{ExpressionMethods, RunQueryDsl};
     use futures::future::join_all;
     use prost::Message;
-    use std::{sync::Arc, time::Duration};
+    use std::sync::Arc;
     use wasm_bindgen_test::wasm_bindgen_test;
     use xmtp_common::assert_err;
     use xmtp_content_types::{group_updated::GroupUpdatedCodec, ContentCodec};
     use xmtp_cryptography::utils::generate_local_wallet;
-    use xmtp_proto::xmtp::mls::message_contents::plaintext_envelope::Content;
+    use xmtp_proto::xmtp::mls::api::v1::group_message::Version;
     use xmtp_proto::xmtp::mls::message_contents::EncodedContent;
-    use xmtp_proto::xmtp::mls::{
-        api::v1::group_message::Version, message_contents::PlaintextEnvelope,
-    };
 
     use crate::storage::group::StoredGroup;
     use crate::storage::schema::{group_messages, groups};
@@ -2071,7 +2068,6 @@ pub(crate) mod tests {
             .unwrap();
 
         bo_dm.send_message(b"Hello there").await.unwrap();
-        std::thread::sleep(Duration::from_millis(20));
         alix_dm
             .send_message(b"No, let's use this dm")
             .await
diff --git a/xmtp_mls/src/storage/encrypted_store/group.rs b/xmtp_mls/src/storage/encrypted_store/group.rs
index c624943d0..323c5d644 100644
--- a/xmtp_mls/src/storage/encrypted_store/group.rs
+++ b/xmtp_mls/src/storage/encrypted_store/group.rs
@@ -577,7 +577,7 @@ impl DmIdExt for String {
             &dm_id[..id.len()]
         };
 
-        return target_inbox.to_string();
+        target_inbox.to_string()
     }
 }
 
@@ -586,10 +586,7 @@ pub(crate) mod tests {
     #[cfg(target_arch = "wasm32")]
     wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_dedicated_worker);
 
-    use std::{
-        sync::atomic::{AtomicU16, Ordering},
-        time::Duration,
-    };
+    use std::sync::atomic::{AtomicU16, Ordering};
 
     use super::*;
     use crate::{