diff --git a/Cargo.toml b/Cargo.toml
index d9c1bff..368c23a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 libpso = { git = "http://git.sharnoth.com/jake/libpso" }
-async-std = { version = "1.7.0", features = ["unstable", "attributes"] }
+async-std = { version = "1.9.0", features = ["unstable", "attributes"] }
 futures = "0.3.5"
 rand = "0.7.3"
 rand_chacha = "0.2.2"
@@ -27,7 +27,7 @@ ages-prs = "0.1"
 async-trait = "0.1.41"
 lazy_static = "1.4.0"
 barrel = { version = "0.6.5", features = ["pg"] }
-refinery = { version = "0.3.0", features = ["postgres"] }
+refinery = { version = "0.5.0", features = ["postgres"] }
 sqlx = { version = "0.4.0", features = ["runtime-async-std-native-tls", "postgres", "json", "chrono"] }
 strum = "0.19.5"
 strum_macros = "0.19"
diff --git a/src/common/mainloop/client.rs b/src/common/mainloop/client.rs
index fff2a4f..31c736c 100644
--- a/src/common/mainloop/client.rs
+++ b/src/common/mainloop/client.rs
@@ -128,7 +128,7 @@ async fn send_pkt<S: SendServerPacket + Send + std::fmt::Debug>(socket: Arc<asyn
 
 
 enum ClientAction<S, R> {
-    NewClient(ClientId, async_std::sync::Sender<S>),
+    NewClient(ClientId, async_std::channel::Sender<S>),
     Packet(ClientId, R),
     Disconnect(ClientId),
 }
@@ -142,8 +142,8 @@ enum ServerStateAction<S> {
 fn client_recv_loop<S, R>(client_id: ClientId,
                                 socket: Arc<async_std::net::TcpStream>,
                                 cipher: Arc<Mutex<Box<dyn PSOCipher + Send>>>,
-                                server_sender: async_std::sync::Sender<ClientAction<ServerStateAction<S>, R>>,
-                                client_sender: async_std::sync::Sender<ServerStateAction<S>>)
+                                server_sender: async_std::channel::Sender<ClientAction<ServerStateAction<S>, R>>,
+                                client_sender: async_std::channel::Sender<ServerStateAction<S>>)
 where
     S: SendServerPacket + std::fmt::Debug + Send + 'static,
     R: RecvServerPacket + std::fmt::Debug + Send + 'static,
@@ -181,7 +181,7 @@ fn client_send_loop<S>(client_id: ClientId,
                              socket: Arc<async_std::net::TcpStream>,
                              cipher_in: Arc<Mutex<Box<dyn PSOCipher + Send>>>,
                              cipher_out: Arc<Mutex<Box<dyn PSOCipher + Send>>>,
-                             client_receiver: async_std::sync::Receiver<ServerStateAction<S>>)
+                             client_receiver: async_std::channel::Receiver<ServerStateAction<S>>)
 where
     S: SendServerPacket + std::fmt::Debug + Send + 'static,
 {
@@ -208,7 +208,7 @@ where
 }
 
 fn state_client_loop<STATE, S, R, E>(state: Arc<Mutex<STATE>>,
-                                           server_state_receiver: async_std::sync::Receiver<ClientAction<ServerStateAction<S>, R>>) where
+                                           server_state_receiver: async_std::channel::Receiver<ClientAction<ServerStateAction<S>, R>>) where
     STATE: ServerState<SendPacket=S, RecvPacket=R, PacketError=E> + Send + 'static,
     S: SendServerPacket + std::fmt::Debug + Send + 'static,
     R: RecvServerPacket + std::fmt::Debug + Send + 'static,
@@ -294,7 +294,7 @@ where
         let listener = async_std::net::TcpListener::bind(&std::net::SocketAddr::from((std::net::Ipv4Addr::new(0,0,0,0), client_port))).await.unwrap();
         let mut id = 0;
 
-        let (server_state_sender, server_state_receiver) = async_std::sync::channel(1024);
+        let (server_state_sender, server_state_receiver) = async_std::channel::bounded(1024);
         state_client_loop(state, server_state_receiver);
 
         loop {
@@ -304,7 +304,7 @@ where
 
             info!("new client {:?} {:?} {:?}", client_id, sock, addr);
 
-            let (client_sender, client_receiver) = async_std::sync::channel(64);
+            let (client_sender, client_receiver) = async_std::channel::bounded(64);
             let socket = Arc::new(sock);
             let cipher_in: Arc<Mutex<Box<dyn PSOCipher + Send>>> = Arc::new(Mutex::new(Box::new(NullCipher {})));
             let cipher_out: Arc<Mutex<Box<dyn PSOCipher + Send>>> = Arc::new(Mutex::new(Box::new(NullCipher {})));
diff --git a/src/common/mainloop/interserver.rs b/src/common/mainloop/interserver.rs
index 7e4b95d..526e51d 100644
--- a/src/common/mainloop/interserver.rs
+++ b/src/common/mainloop/interserver.rs
@@ -49,12 +49,12 @@ impl MessageReceiver {
 
 #[derive(Debug)]
 enum InterserverInputAction<S, R> {
-    NewConnection(ServerId, async_std::sync::Sender<S>),
+    NewConnection(ServerId, async_std::channel::Sender<S>),
     Message(ServerId, R),
     Disconnect(ServerId),
 }
 
-async fn interserver_state_loop<A, S, R>(state: Arc<Mutex<A>>, action_receiver: async_std::sync::Receiver<InterserverInputAction<S, R>>)
+async fn interserver_state_loop<A, S, R>(state: Arc<Mutex<A>>, action_receiver: async_std::channel::Receiver<InterserverInputAction<S, R>>)
 where
     A: InterserverActor<SendMessage=S, RecvMessage=R, Error=()> + Send + 'static,
     S: Serialize + Send + 'static,
@@ -114,8 +114,8 @@ where
 
 async fn login_recv_loop<S, R>(server_id: ServerId,
                                socket: async_std::net::TcpStream,
-                               state_loop_sender: async_std::sync::Sender<InterserverInputAction<S, R>>,
-                               output_loop_sender: async_std::sync::Sender<S>)
+                               state_loop_sender: async_std::channel::Sender<InterserverInputAction<S, R>>,
+                               output_loop_sender: async_std::channel::Sender<S>)
 where
     S: Serialize + std::fmt::Debug + Send + 'static,
     R: DeserializeOwned + std::fmt::Debug + Send + 'static,
@@ -129,7 +129,7 @@ where
             match msg_receiver.recv().await {
                 Ok(msg) => {
                     info!("[login recv loop msg] {:?}", msg);
-                    state_loop_sender.send(InterserverInputAction::Message(server_id, msg)).await
+                    state_loop_sender.send(InterserverInputAction::Message(server_id, msg)).await;
                 },
                 Err(err) => {
                     if let MessageReceiverError::Disconnected = err {
@@ -146,7 +146,7 @@ where
 
 async fn interserver_send_loop<S>(server_id: ServerId,
                                   mut socket: async_std::net::TcpStream,
-                                  output_loop_receiver: async_std::sync::Receiver<S>)
+                                  output_loop_receiver: async_std::channel::Receiver<S>)
 where
     S: Serialize + std::fmt::Debug + Send + 'static,
 {
@@ -159,13 +159,13 @@ where
                     if let Ok(payload) = payload {
                         let len_bytes = u32::to_le_bytes(payload.len() as u32);
 
-                        match socket.write_all(&len_bytes).await {
-                            Ok(_) => {},
-                            Err(err) => warn!("send failed: {:?}", err),
+                        if let Err(err) = socket.write_all(&len_bytes).await {
+                            warn!("interserver send failed: {:?}", err);
+                            break;
                         }
-                        match socket.write_all(&payload.as_bytes()).await {
-                            Ok(_) => {},
-                            Err(err) => warn!("send failed: {:?}", err),
+                        if let Err(err) = socket.write_all(&payload.as_bytes()).await {
+                            warn!("intserserver send failed: {:?}", err);
+                            break;
                         }
                     }
                 },
@@ -185,7 +185,7 @@ pub fn login_listen_mainloop<EG: EntityGateway + 'static>(state: Arc<Mutex<Chara
         let listener = async_std::net::TcpListener::bind(&std::net::SocketAddr::from((std::net::Ipv4Addr::new(0,0,0,0), port))).await.unwrap();
         let mut id = 0;
 
-        let (server_state_sender, server_state_receiver) = async_std::sync::channel(1024);
+        let (server_state_sender, server_state_receiver) = async_std::channel::bounded(1024);
         interserver_state_loop(state.clone(), server_state_receiver).await;
 
         loop {
@@ -194,7 +194,7 @@ pub fn login_listen_mainloop<EG: EntityGateway + 'static>(state: Arc<Mutex<Chara
 
             id += 1;
             let server_id = crate::common::interserver::ServerId(id);
-            let (client_sender, client_receiver) = async_std::sync::channel(64);
+            let (client_sender, client_receiver) = async_std::channel::bounded(64);
 
             {
                 let mut state = state.lock().await;
@@ -213,7 +213,7 @@ pub fn login_listen_mainloop<EG: EntityGateway + 'static>(state: Arc<Mutex<Chara
 pub fn ship_connect_mainloop<EG: EntityGateway + 'static>(state: Arc<Mutex<ShipServerState<EG>>>, ip: std::net::Ipv4Addr, port: u16) ->  Pin<Box<dyn Future<Output = ()>>> {
     Box::pin(async_std::task::spawn(async move {
         let mut id = 0;
-        let (server_state_sender, server_state_receiver) = async_std::sync::channel(1024);
+        let (server_state_sender, server_state_receiver) = async_std::channel::bounded(1024);
 
         interserver_state_loop(state.clone(), server_state_receiver).await;
 
@@ -230,7 +230,7 @@ pub fn ship_connect_mainloop<EG: EntityGateway + 'static>(state: Arc<Mutex<ShipS
             id += 1;
             let server_id = crate::common::interserver::ServerId(id);
             info!("found loginserv: {:?} {:?}", server_id, socket);
-            let (client_sender, client_receiver) = async_std::sync::channel(64);
+            let (client_sender, client_receiver) = async_std::channel::bounded(64);
 
             {
                 let mut state = state.lock().await;
diff --git a/src/entity/gateway/inmemory.rs b/src/entity/gateway/inmemory.rs
index cedeaf6..12f9f8f 100644
--- a/src/entity/gateway/inmemory.rs
+++ b/src/entity/gateway/inmemory.rs
@@ -168,7 +168,8 @@ impl EntityGateway for InMemoryGateway {
 
     async fn get_characters_by_user(&self, user: &UserAccountEntity) -> Result<[Option<CharacterEntity>; 4], GatewayError> {
         let characters = self.characters.lock().unwrap();
-        let mut chars = [None; 4];
+        const NONE: Option<CharacterEntity> = None;
+        let mut chars = [NONE; 4];
         characters
             .iter()
             .filter(|(_, c)| c.user_id == user.id)
diff --git a/src/entity/gateway/postgres/models.rs b/src/entity/gateway/postgres/models.rs
index 892fa24..d6a0c14 100644
--- a/src/entity/gateway/postgres/models.rs
+++ b/src/entity/gateway/postgres/models.rs
@@ -759,7 +759,7 @@ impl Into<EquippedEntity> for PgEquipped {
 impl From<(CharacterEntityId, EquippedEntity)> for PgEquipped {
     fn from(char_equips: (CharacterEntityId, EquippedEntity)) -> PgEquipped {
         PgEquipped {
-            pchar: char_equips.0.0 as i32,
+            pchar: (char_equips.0).0 as i32,
             weapon: char_equips.1.weapon.map(|i| i.0 as i32),
             armor: char_equips.1.armor.map(|i| i.0 as i32),
             shield: char_equips.1.shield.map(|i| i.0 as i32),
diff --git a/src/entity/gateway/postgres/postgres.rs b/src/entity/gateway/postgres/postgres.rs
index 45aee91..4d7a36e 100644
--- a/src/entity/gateway/postgres/postgres.rs
+++ b/src/entity/gateway/postgres/postgres.rs
@@ -229,7 +229,8 @@ impl EntityGateway for PostgresGateway {
         let mut stream = sqlx::query_as::<_, PgCharacter>("select * from player_character where user_account = $1 and slot < 4 order by slot")
             .bind(user.id.0)
             .fetch(&self.pool);
-        let mut result = [None; 4];
+        const NONE: Option<CharacterEntity> = None;
+        let mut result = [NONE; 4];
         while let Some(character) = stream.try_next().await? {
             let index = character.slot as usize;
             result[index] = Some(character.into())
diff --git a/src/lib.rs b/src/lib.rs
index abd1d14..dbf3afa 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,9 +1,7 @@
 #![allow(incomplete_features)]
-#![feature(const_generics)]
 #![feature(maybe_uninit_extra)]
-#![feature(const_in_array_repeat_expressions)]
+#![feature(inline_const)]
 #![feature(drain_filter)]
-#![feature(or_patterns)]
 
 
 
diff --git a/src/ship/ship.rs b/src/ship/ship.rs
index f8f08a6..b986648 100644
--- a/src/ship/ship.rs
+++ b/src/ship/ship.rs
@@ -390,9 +390,11 @@ pub struct Block {
 
 impl Default for Block {
     fn default() -> Block {
+        const SNONE: Option<room::RoomState> = None;
+        const NONE: Rooms = [SNONE; MAX_ROOMS];
         Block {
             client_location: Box::new(ClientLocation::default()),
-            rooms: Box::new([None; MAX_ROOMS]),
+            rooms: Box::new(NONE),
         }
     }
 }