diff --git a/taskchampion/lib/src/string.rs b/taskchampion/lib/src/string.rs
index de090116b..36db8a4ac 100644
--- a/taskchampion/lib/src/string.rs
+++ b/taskchampion/lib/src/string.rs
@@ -104,7 +104,7 @@ impl TCString {
     }
 }
 
-#[derive(PartialEq, Debug)]
+#[derive(PartialEq, Eq, Debug)]
 pub enum RustString<'a> {
     Null,
     CString(CString),
@@ -600,7 +600,7 @@ mod test {
 
     fn make_cstr() -> RustString<'static> {
         let cstr = CStr::from_bytes_with_nul(b"a string\0").unwrap();
-        RustString::CStr(&cstr)
+        RustString::CStr(cstr)
     }
 
     fn make_string() -> RustString<'static> {
diff --git a/taskchampion/sync-server/src/server.rs b/taskchampion/sync-server/src/server.rs
index 2311d98eb..8dc2c8ab5 100644
--- a/taskchampion/sync-server/src/server.rs
+++ b/taskchampion/sync-server/src/server.rs
@@ -38,8 +38,8 @@ impl Default for ServerConfig {
 impl ServerConfig {
     pub fn from_args(snapshot_days: i64, snapshot_versions: u32) -> anyhow::Result<ServerConfig> {
         Ok(ServerConfig {
-            snapshot_days: snapshot_days,
-            snapshot_versions: snapshot_versions,
+            snapshot_days,
+            snapshot_versions,
         })
     }
 }
@@ -1021,7 +1021,7 @@ mod test {
         let client = txn.get_client(client_key)?.unwrap();
         assert_eq!(
             get_snapshot(txn, &ServerConfig::default(), client_key, client)?,
-            Some((snapshot_version_id, data.clone()))
+            Some((snapshot_version_id, data))
         );
 
         Ok(())
diff --git a/taskchampion/sync-server/src/storage/mod.rs b/taskchampion/sync-server/src/storage/mod.rs
index c52624898..2a7711b7f 100644
--- a/taskchampion/sync-server/src/storage/mod.rs
+++ b/taskchampion/sync-server/src/storage/mod.rs
@@ -10,7 +10,7 @@ pub use inmemory::InMemoryStorage;
 mod sqlite;
 pub use self::sqlite::SqliteStorage;
 
-#[derive(Clone, PartialEq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 pub struct Client {
     /// The latest version for this client (may be the nil version)
     pub latest_version_id: Uuid,
@@ -18,7 +18,7 @@ pub struct Client {
     pub snapshot: Option<Snapshot>,
 }
 
-#[derive(Clone, PartialEq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 pub struct Snapshot {
     /// ID of the version at which this snapshot was made
     pub version_id: Uuid,
@@ -30,7 +30,7 @@ pub struct Snapshot {
     pub versions_since: u32,
 }
 
-#[derive(Clone, PartialEq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 pub struct Version {
     pub version_id: Uuid,
     pub parent_version_id: Uuid,
diff --git a/taskchampion/taskchampion/src/depmap.rs b/taskchampion/taskchampion/src/depmap.rs
index d2f6225bf..fe4d5df6f 100644
--- a/taskchampion/taskchampion/src/depmap.rs
+++ b/taskchampion/taskchampion/src/depmap.rs
@@ -4,7 +4,7 @@ use uuid::Uuid;
 ///
 /// This information requires a scan of the working set to generate, so it is
 /// typically calculated once and re-used.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 pub struct DependencyMap {
     /// Edges of the dependency graph.  If (a, b) is in this array, then task a depends on tsak b.
     edges: Vec<(Uuid, Uuid)>,
diff --git a/taskchampion/taskchampion/src/server/crypto.rs b/taskchampion/taskchampion/src/server/crypto.rs
index 978a38fd8..9a34f6575 100644
--- a/taskchampion/taskchampion/src/server/crypto.rs
+++ b/taskchampion/taskchampion/src/server/crypto.rs
@@ -271,7 +271,7 @@ mod test {
 
         let unsealed = Unsealed {
             version_id,
-            payload: payload.clone(),
+            payload: payload,
         };
         let sealed = cryptor.seal(unsealed).unwrap();
 
@@ -291,7 +291,7 @@ mod test {
 
         let unsealed = Unsealed {
             version_id,
-            payload: payload.clone(),
+            payload: payload,
         };
         let mut sealed = cryptor.seal(unsealed).unwrap();
         sealed.version_id = Uuid::new_v4(); // change the version_id
@@ -309,7 +309,7 @@ mod test {
 
         let unsealed = Unsealed {
             version_id,
-            payload: payload.clone(),
+            payload: payload,
         };
         let sealed = cryptor.seal(unsealed).unwrap();
 
diff --git a/taskchampion/taskchampion/src/server/local.rs b/taskchampion/taskchampion/src/server/local.rs
index 37cb06614..f50297bf6 100644
--- a/taskchampion/taskchampion/src/server/local.rs
+++ b/taskchampion/taskchampion/src/server/local.rs
@@ -250,7 +250,7 @@ mod test {
 
         // then add another, not based on that one
         if let (AddVersionResult::Ok(_), SnapshotUrgency::None) =
-            server.add_version(parent_version_id, history.clone())?
+            server.add_version(parent_version_id, history)?
         {
             panic!("should not have accepted the version")
         }
diff --git a/taskchampion/taskchampion/src/server/op.rs b/taskchampion/taskchampion/src/server/op.rs
index c2906700f..ff145dd44 100644
--- a/taskchampion/taskchampion/src/server/op.rs
+++ b/taskchampion/taskchampion/src/server/op.rs
@@ -4,7 +4,7 @@ use uuid::Uuid;
 
 /// A SyncOp defines a single change to the task database, that can be synchronized
 /// via a server.
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
+#[derive(PartialEq, Eq, Clone, Debug, Serialize, Deserialize)]
 pub enum SyncOp {
     /// Create a new task.
     ///
diff --git a/taskchampion/taskchampion/src/server/types.rs b/taskchampion/taskchampion/src/server/types.rs
index fada6c04a..5a938f984 100644
--- a/taskchampion/taskchampion/src/server/types.rs
+++ b/taskchampion/taskchampion/src/server/types.rs
@@ -15,7 +15,7 @@ pub type HistorySegment = Vec<u8>;
 pub type Snapshot = Vec<u8>;
 
 /// AddVersionResult is the response type from [`crate::server::Server::add_version`].
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 pub enum AddVersionResult {
     /// OK, version added with the given ID
     Ok(VersionId),
@@ -35,7 +35,7 @@ pub enum SnapshotUrgency {
 }
 
 /// A version as downloaded from the server
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Eq)]
 pub enum GetVersionResult {
     /// No such version exists
     NoSuchVersion,
diff --git a/taskchampion/taskchampion/src/storage/op.rs b/taskchampion/taskchampion/src/storage/op.rs
index a742238bc..1a65f1aee 100644
--- a/taskchampion/taskchampion/src/storage/op.rs
+++ b/taskchampion/taskchampion/src/storage/op.rs
@@ -6,7 +6,7 @@ use uuid::Uuid;
 
 /// A ReplicaOp defines a single change to the task database, as stored locally in the replica.
 /// This contains additional information not included in SyncOp.
-#[derive(PartialEq, Clone, Debug, Serialize, Deserialize)]
+#[derive(PartialEq, Eq, Clone, Debug, Serialize, Deserialize)]
 pub enum ReplicaOp {
     /// Create a new task.
     ///
diff --git a/taskchampion/taskchampion/src/storage/sqlite.rs b/taskchampion/taskchampion/src/storage/sqlite.rs
index 7e30931a4..88d2ae676 100644
--- a/taskchampion/taskchampion/src/storage/sqlite.rs
+++ b/taskchampion/taskchampion/src/storage/sqlite.rs
@@ -532,14 +532,14 @@ mod test {
         let uuid2 = Uuid::new_v4();
         {
             let mut txn = storage.txn()?;
-            assert!(txn.create_task(uuid1.clone())?);
+            assert!(txn.create_task(uuid1)?);
             txn.set_task(
-                uuid1.clone(),
+                uuid1,
                 taskmap_with(vec![("num".to_string(), "1".to_string())]),
             )?;
-            assert!(txn.create_task(uuid2.clone())?);
+            assert!(txn.create_task(uuid2)?);
             txn.set_task(
-                uuid2.clone(),
+                uuid2,
                 taskmap_with(vec![("num".to_string(), "2".to_string())]),
             )?;
             txn.commit()?;
@@ -553,11 +553,11 @@ mod test {
 
             let mut exp = vec![
                 (
-                    uuid1.clone(),
+                    uuid1,
                     taskmap_with(vec![("num".to_string(), "1".to_string())]),
                 ),
                 (
-                    uuid2.clone(),
+                    uuid2,
                     taskmap_with(vec![("num".to_string(), "2".to_string())]),
                 ),
             ];
@@ -570,7 +570,7 @@ mod test {
             let mut uuids = txn.all_task_uuids()?;
             uuids.sort();
 
-            let mut exp = vec![uuid1.clone(), uuid2.clone()];
+            let mut exp = vec![uuid1, uuid2];
             exp.sort();
 
             assert_eq!(uuids, exp);
diff --git a/taskchampion/taskchampion/src/task/status.rs b/taskchampion/taskchampion/src/task/status.rs
index 31fee9cf7..55ccbb4c1 100644
--- a/taskchampion/taskchampion/src/task/status.rs
+++ b/taskchampion/taskchampion/src/task/status.rs
@@ -1,5 +1,5 @@
 /// The status of a task, as defined by the task data model.
-#[derive(Debug, PartialEq, Clone, strum_macros::Display)]
+#[derive(Debug, PartialEq, Eq, Clone, strum_macros::Display)]
 #[repr(C)]
 pub enum Status {
     Pending,
diff --git a/taskchampion/taskchampion/src/task/task.rs b/taskchampion/taskchampion/src/task/task.rs
index 55c5c6318..f742afdcb 100644
--- a/taskchampion/taskchampion/src/task/task.rs
+++ b/taskchampion/taskchampion/src/task/task.rs
@@ -887,7 +887,7 @@ mod test {
         with_mut_task(|mut task| {
             let property = "property-name";
             task.set_value(property, Some("value".into())).unwrap();
-            assert_eq!(task.get_value(property), Some("value".into()));
+            assert_eq!(task.get_value(property), Some("value"));
             task.set_value(property, None).unwrap();
             assert_eq!(task.get_value(property), None);
         });
diff --git a/taskchampion/taskchampion/src/taskdb/apply.rs b/taskchampion/taskchampion/src/taskdb/apply.rs
index 1e3a3fa83..24f7113a3 100644
--- a/taskchampion/taskchampion/src/taskdb/apply.rs
+++ b/taskchampion/taskchampion/src/taskdb/apply.rs
@@ -148,7 +148,7 @@ mod tests {
         let op = SyncOp::Create { uuid };
         {
             let mut txn = db.storage.txn()?;
-            let taskmap = apply_and_record(txn.as_mut(), op.clone())?;
+            let taskmap = apply_and_record(txn.as_mut(), op)?;
 
             assert_eq!(taskmap.len(), 1);
             assert_eq!(taskmap.get("foo").unwrap(), "bar");
diff --git a/taskchampion/taskchampion/src/taskdb/mod.rs b/taskchampion/taskchampion/src/taskdb/mod.rs
index 697827795..ee1fcc0ad 100644
--- a/taskchampion/taskchampion/src/taskdb/mod.rs
+++ b/taskchampion/taskchampion/src/taskdb/mod.rs
@@ -163,7 +163,7 @@ impl TaskDb {
                     .map(|(p, v)| (p.clone(), v.clone()))
                     .collect::<Vec<(String, String)>>();
                 t.sort();
-                (u.clone(), t)
+                (*u, t)
             })
             .collect();
         res.sort();
@@ -175,8 +175,7 @@ impl TaskDb {
         let mut txn = self.storage.txn().unwrap();
         txn.operations()
             .unwrap()
-            .iter()
-            .map(|o| o.clone())
+            .iter().cloned()
             .collect()
     }
 }
@@ -198,7 +197,7 @@ mod tests {
         let mut db = TaskDb::new_inmemory();
         let uuid = Uuid::new_v4();
         let op = SyncOp::Create { uuid };
-        db.apply(op.clone()).unwrap();
+        db.apply(op).unwrap();
 
         assert_eq!(db.sorted_tasks(), vec![(uuid, vec![]),]);
         assert_eq!(db.operations(), vec![ReplicaOp::Create { uuid }]);
diff --git a/taskchampion/taskchampion/src/taskdb/working_set.rs b/taskchampion/taskchampion/src/taskdb/working_set.rs
index dd9e57f97..d6ae3c9fd 100644
--- a/taskchampion/taskchampion/src/taskdb/working_set.rs
+++ b/taskchampion/taskchampion/src/taskdb/working_set.rs
@@ -98,7 +98,7 @@ mod test {
         }
         for i in &[0usize, 1, 4] {
             db.apply(SyncOp::Update {
-                uuid: uuids[*i].clone(),
+                uuid: uuids[*i],
                 property: String::from("status"),
                 value: Some("pending".into()),
                 timestamp: Utc::now(),
@@ -121,9 +121,9 @@ mod test {
             db.working_set()?,
             vec![
                 None,
-                Some(uuids[1].clone()),
-                Some(uuids[3].clone()),
-                Some(uuids[4].clone())
+                Some(uuids[1]),
+                Some(uuids[3]),
+                Some(uuids[4])
             ]
         );
 
@@ -144,19 +144,19 @@ mod test {
             // to the top, and then uuids[0] is added.
             vec![
                 None,
-                Some(uuids[1].clone()),
-                Some(uuids[4].clone()),
-                Some(uuids[0].clone()),
+                Some(uuids[1]),
+                Some(uuids[4]),
+                Some(uuids[0]),
             ]
         } else {
             // uuids[1] and uuids[4] are already in the working set, at indexes 1 and 3,
             // and then uuids[0] is added.
             vec![
                 None,
-                Some(uuids[1].clone()),
+                Some(uuids[1]),
                 None,
-                Some(uuids[4].clone()),
-                Some(uuids[0].clone()),
+                Some(uuids[4]),
+                Some(uuids[0]),
             ]
         };