diff --git a/accounts/hw/src/ledger.rs b/accounts/hw/src/ledger.rs
index e2c50dc52..7725df1e2 100644
--- a/accounts/hw/src/ledger.rs
+++ b/accounts/hw/src/ledger.rs
@@ -279,7 +279,7 @@ impl Manager {
                 "Not implemented. Make sure the Ledger Ethereum Wallet app is running.",
             )),
             0x6faa => Err(Error::Protocol("Your Ledger need to be unplugged")),
-            0x6f00...0x6fff => Err(Error::Protocol("Internal error")),
+            0x6f00..=0x6fff => Err(Error::Protocol("Internal error")),
             0x9000 => Ok(()),
             _ => Err(Error::Protocol("Unknown error")),
         }?;
diff --git a/util/network-devp2p/src/host.rs b/util/network-devp2p/src/host.rs
index 9b8de8da1..7b12ef221 100644
--- a/util/network-devp2p/src/host.rs
+++ b/util/network-devp2p/src/host.rs
@@ -1063,7 +1063,7 @@ impl Host {
         let mut failure_id = None;
         let mut deregister = false;
         let mut expired_session = None;
-        if let FIRST_SESSION...LAST_SESSION = token {
+        if let FIRST_SESSION..=LAST_SESSION = token {
             let sessions = self.sessions.read();
             if let Some(session) = sessions.get(token).cloned() {
                 expired_session = Some(session.clone());
@@ -1167,7 +1167,7 @@ impl IoHandler<NetworkIoMessage> for Host {
     fn stream_hup(&self, io: &IoContext<NetworkIoMessage>, stream: StreamToken) {
         trace!(target: "network", "Hup: {}", stream);
         match stream {
-            FIRST_SESSION...LAST_SESSION => self.connection_closed(stream, io),
+            FIRST_SESSION..=LAST_SESSION => self.connection_closed(stream, io),
             _ => warn!(target: "network", "Unexpected hup"),
         };
     }
@@ -1177,7 +1177,7 @@ impl IoHandler<NetworkIoMessage> for Host {
             return;
         }
         match stream {
-            FIRST_SESSION...LAST_SESSION => self.session_readable(stream, io),
+            FIRST_SESSION..=LAST_SESSION => self.session_readable(stream, io),
             DISCOVERY => self.discovery_readable(io),
             TCP_ACCEPT => self.accept(io),
             _ => panic!("Received unknown readable token"),
@@ -1189,7 +1189,7 @@ impl IoHandler<NetworkIoMessage> for Host {
             return;
         }
         match stream {
-            FIRST_SESSION...LAST_SESSION => self.session_writable(stream, io),
+            FIRST_SESSION..=LAST_SESSION => self.session_writable(stream, io),
             DISCOVERY => self.discovery_writable(io),
             _ => panic!("Received unknown writable token"),
         }
@@ -1201,7 +1201,7 @@ impl IoHandler<NetworkIoMessage> for Host {
         }
         match token {
             IDLE => self.maintain_network(io),
-            FIRST_SESSION...LAST_SESSION => self.connection_timeout(token, io),
+            FIRST_SESSION..=LAST_SESSION => self.connection_timeout(token, io),
             DISCOVERY_REFRESH => {
                 // Run the _slow_ discovery if enough peers are connected
                 if !self.has_enough_peers() {
@@ -1347,7 +1347,7 @@ impl IoHandler<NetworkIoMessage> for Host {
         event_loop: &mut EventLoop<IoManager<NetworkIoMessage>>,
     ) {
         match stream {
-            FIRST_SESSION...LAST_SESSION => {
+            FIRST_SESSION..=LAST_SESSION => {
                 let session = { self.sessions.read().get(stream).cloned() };
                 if let Some(session) = session {
                     session
@@ -1382,7 +1382,7 @@ impl IoHandler<NetworkIoMessage> for Host {
         event_loop: &mut EventLoop<IoManager<NetworkIoMessage>>,
     ) {
         match stream {
-            FIRST_SESSION...LAST_SESSION => {
+            FIRST_SESSION..=LAST_SESSION => {
                 let mut connections = self.sessions.write();
                 if let Some(connection) = connections.get(stream).cloned() {
                     let c = connection.lock();
@@ -1406,7 +1406,7 @@ impl IoHandler<NetworkIoMessage> for Host {
         event_loop: &mut EventLoop<IoManager<NetworkIoMessage>>,
     ) {
         match stream {
-            FIRST_SESSION...LAST_SESSION => {
+            FIRST_SESSION..=LAST_SESSION => {
                 let connection = { self.sessions.read().get(stream).cloned() };
                 if let Some(connection) = connection {
                     connection
diff --git a/util/network-devp2p/src/session.rs b/util/network-devp2p/src/session.rs
index e1fb6ce75..d90d81e96 100644
--- a/util/network-devp2p/src/session.rs
+++ b/util/network-devp2p/src/session.rs
@@ -453,7 +453,7 @@ impl Session {
             }
             PACKET_GET_PEERS => Ok(SessionData::None), //TODO;
             PACKET_PEERS => Ok(SessionData::None),
-            PACKET_USER...PACKET_LAST => {
+            PACKET_USER..=PACKET_LAST => {
                 let mut i = 0usize;
                 while packet_id
                     >= self.info.capabilities[i].id_offset + self.info.capabilities[i].packet_count
diff --git a/whisper/src/rpc/payload.rs b/whisper/src/rpc/payload.rs
index 79e33b4d0..7f255e85d 100644
--- a/whisper/src/rpc/payload.rs
+++ b/whisper/src/rpc/payload.rs
@@ -66,9 +66,9 @@ fn num_padding_length_bytes(padding_len: usize) -> Option<usize> {
     let bits = 64 - (padding_len as u64).leading_zeros();
     match bits {
         0 => Some(0),
-        0...8 => Some(1),
-        0...16 => Some(2),
-        0...24 => Some(3),
+        1..=8 => Some(1),
+        9..=16 => Some(2),
+        17..=24 => Some(3),
         _ => None,
     }
 }