fix cargo check lints

src/api/client_server/keys.rs

@@ -360,7 +360,7 @@ pub(crate) async fn get_keys_helper<F: Fn(&UserId) -> bool>(
                 .bad_query_ratelimiter
                 .read()
                 .unwrap()
-                .get(&*server)
+                .get(server)
             {
                 // Exponential backoff
                 let mut min_elapsed_duration = Duration::from_secs(30) * (*tries) * (*tries);
@@ -393,7 +393,7 @@ pub(crate) async fn get_keys_helper<F: Fn(&UserId) -> bool>(
                     ),
                 )
                 .await
-                .map_err(|e| Error::BadServerResponse("Query took too long")),
+                .map_err(|_e| Error::BadServerResponse("Query took too long")),
             )
         })
         .collect();

src/api/client_server/session.rs

@@ -163,6 +163,8 @@ pub async fn login_route(body: Ruma<login::v3::Request>) -> Result<login::v3::Re
 
     info!("{} logged in", user_id);
 
+    // Homeservers are still required to send the `home_server` field
+    #[allow(deprecated)]
     Ok(login::v3::Response {
         user_id,
         access_token: token,

src/api/server_server.rs

@@ -55,7 +55,7 @@ use std::{
     time::{Duration, Instant, SystemTime},
 };
 
-use tracing::{debug, error, trace, warn};
+use tracing::{debug, error, warn};
 
 /// Wraps either an literal IP address plus port, or a hostname plus complement
 /// (colon-plus-port if it was specified).

src/database/key_value/rooms/threads.rs

@@ -10,7 +10,7 @@ impl service::rooms::threads::Data for KeyValueDatabase {
         user_id: &'a UserId,
         room_id: &'a RoomId,
         until: u64,
-        include: &'a IncludeThreads,
+        _include: &'a IncludeThreads,
     ) -> Result<Box<dyn Iterator<Item = Result<(u64, PduEvent)>> + 'a>> {
         let prefix = services()
             .rooms
@@ -27,7 +27,7 @@ impl service::rooms::threads::Data for KeyValueDatabase {
             self.threadid_userids
                 .iter_from(&current, true)
                 .take_while(move |(k, _)| k.starts_with(&prefix))
-                .map(move |(pduid, users)| {
+                .map(move |(pduid, _users)| {
                     let count = utils::u64_from_bytes(&pduid[(mem::size_of::<u64>())..])
                         .map_err(|_| Error::bad_database("Invalid pduid in threadid_userids."))?;
                     let mut pdu = services()