From 706d205ff1c145f244630b2b2723b73fa239d9d4 Mon Sep 17 00:00:00 2001
From: Dennis Schwerdel <schwerdel@googlemail.com>
Date: Fri, 1 Mar 2019 23:12:19 +0100
Subject: [PATCH 1/3] Edition 2018

---
 Cargo.toml        |  1 +
 src/beacon.rs     | 20 ++++++-------
 src/cloud.rs      | 76 +++++++++++++++++++++++------------------------
 src/device.rs     |  6 ++--
 src/ethernet.rs   |  8 ++---
 src/ip.rs         | 12 ++++----
 src/main.rs       | 20 ++++++-------
 src/poll/epoll.rs |  6 ++--
 src/tests/mod.rs  |  2 +-
 src/traffic.rs    | 10 +++----
 src/types.rs      | 30 +++++++++----------
 src/udpmessage.rs | 12 ++++----
 src/util.rs       |  2 +-
 13 files changed, 103 insertions(+), 102 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 7d8d21b..36183f1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,6 +9,7 @@ homepage = "https://vpncloud.ddswd.de"
 repository = "https://github.com/dswd/vpncloud"
 keywords = ["vpn", "p2p", "tun", "tap", "network"]
 readme = "README.md"
+edition = "2018"
 
 [dependencies]
 time = "0.1"
diff --git a/src/beacon.rs b/src/beacon.rs
index 191256a..7b3903d 100644
--- a/src/beacon.rs
+++ b/src/beacon.rs
@@ -209,9 +209,9 @@ impl<TS: TimeSource> BeaconSerializer<TS> {
     pub fn write_to_file<P: AsRef<Path>>(&self, peers: &[SocketAddr], path: P) -> Result<(), io::Error> {
         let beacon = self.encode(peers);
         debug!("Beacon: {}", beacon);
-        let mut f = try!(File::create(&path));
-        try!(writeln!(&mut f, "{}", beacon));
-        try!(fs::set_permissions(&path, Permissions::from_mode(0o644)));
+        let mut f = File::create(&path)?;
+        writeln!(&mut f, "{}", beacon)?;
+        fs::set_permissions(&path, Permissions::from_mode(0o644))?;
         Ok(())
     }
 
@@ -221,9 +221,9 @@ impl<TS: TimeSource> BeaconSerializer<TS> {
         let end = self.end();
         let beacon = format!("{}{}{}", begin, data, end);
         debug!("Calling beacon command: {}", cmd);
-        let process = try!(Command::new("sh").args(&["-c", cmd])
+        let process = Command::new("sh").args(&["-c", cmd])
             .env("begin", begin).env("data", data).env("end", end).env("beacon", beacon)
-            .stdout(Stdio::piped()).stderr(Stdio::piped()).spawn());
+            .stdout(Stdio::piped()).stderr(Stdio::piped()).spawn()?;
         thread::spawn(move || {
             let output = process.wait_with_output().expect("Failed to wait on child");
             if !output.status.success() {
@@ -256,9 +256,9 @@ impl<TS: TimeSource> BeaconSerializer<TS> {
     }
 
     pub fn read_from_file<P: AsRef<Path>>(&self, path: P, ttl_hours: Option<u16>) -> Result<Vec<SocketAddr>, io::Error> {
-        let mut f = try!(File::open(&path));
+        let mut f = File::open(&path)?;
         let mut contents = String::new();
-        try!(f.read_to_string(&mut contents));
+        f.read_to_string(&mut contents)?;
         Ok(self.decode(&contents, ttl_hours))
     }
 
@@ -266,9 +266,9 @@ impl<TS: TimeSource> BeaconSerializer<TS> {
         let begin = self.begin();
         let end = self.end();
         debug!("Calling beacon command: {}", cmd);
-        let process = try!(Command::new("sh").args(&["-c", cmd])
+        let process = Command::new("sh").args(&["-c", cmd])
             .env("begin", begin).env("end", end)
-            .stdout(Stdio::piped()).stderr(Stdio::piped()).spawn());
+            .stdout(Stdio::piped()).stderr(Stdio::piped()).spawn()?;
         let this = self.clone();
         thread::spawn(move || {
             let output = process.wait_with_output().expect("Failed to wait on child");
@@ -301,7 +301,7 @@ impl<TS: TimeSource> BeaconSerializer<TS> {
 #[cfg(test)] use std::str::FromStr;
 #[cfg(test)] use std::time::Duration;
 #[cfg(test)] use tempfile;
-#[cfg(test)] use ::util::MockTimeSource;
+#[cfg(test)] use crate::util::MockTimeSource;
 
 #[test]
 fn encode() {
diff --git a/src/cloud.rs b/src/cloud.rs
index f80f1ec..fc42d0e 100644
--- a/src/cloud.rs
+++ b/src/cloud.rs
@@ -87,7 +87,7 @@ impl<TS: TimeSource> PeerList<TS> {
 
     #[inline]
     pub fn is_connected<Addr: ToSocketAddrs+fmt::Debug>(&self, addr: Addr) -> Result<bool, Error> {
-        for addr in try!(resolve(&addr)) {
+        for addr in resolve(&addr)? {
             if self.contains_addr(&addr) {
                 return Ok(true);
             }
@@ -181,10 +181,10 @@ impl<TS: TimeSource> PeerList<TS> {
 
     #[inline]
     fn write_out<W: Write>(&self, out: &mut W) -> Result<(), io::Error> {
-        try!(writeln!(out, "Peers:"));
+        writeln!(out, "Peers:")?;
         let now = TS::now();
         for (addr, data) in &self.peers {
-            try!(writeln!(out, " - {} (ttl: {} s)", addr, data.timeout-now));
+            writeln!(out, " - {} (ttl: {} s)", addr, data.timeout-now)?;
         }
         Ok(())
     }
@@ -296,11 +296,11 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
                 SocketAddr::V4(_) => &mut self.socket4,
                 SocketAddr::V6(_) => &mut self.socket6
             };
-            try!(match socket.send(msg_data, *addr) {
+            match socket.send(msg_data, *addr) {
                 Ok(written) if written == msg_data.len() => Ok(()),
                 Ok(_) => Err(Error::Socket("Sent out truncated packet", io::Error::new(io::ErrorKind::Other, "truncated"))),
                 Err(e) => Err(Error::Socket("IOError when sending", e))
-            })
+            }?
         }
         Ok(())
     }
@@ -336,7 +336,7 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
     /// Returns an IOError if the underlying system call fails
     #[allow(dead_code)]
     pub fn address(&self) -> io::Result<(SocketAddr, SocketAddr)> {
-        Ok((try!(self.socket4.address()), try!(self.socket6.address())))
+        Ok((self.socket4.address()?, self.socket6.address()?))
     }
 
     /// Returns the number of peers
@@ -367,7 +367,7 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
     /// Returns an `Error::SocketError` if the given address is a name that failed to resolve to
     /// actual addresses.
     fn is_own_address<Addr: ToSocketAddrs+fmt::Debug>(&self, addr: Addr) -> Result<bool, Error> {
-        for addr in try!(resolve(&addr)) {
+        for addr in resolve(&addr)? {
             if self.own_addresses.contains(&addr) {
                 return Ok(true);
             }
@@ -384,14 +384,14 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
     /// # Errors
     /// This method returns `Error::NameError` if the address is a name that fails to resolve.
     pub fn connect<Addr: ToSocketAddrs+fmt::Debug+Clone>(&mut self, addr: Addr) -> Result<(), Error> {
-        if try!(self.peers.is_connected(addr.clone())) || try!(self.is_own_address(addr.clone())) {
+        if self.peers.is_connected(addr.clone())? || self.is_own_address(addr.clone())? {
             return Ok(())
         }
         debug!("Connecting to {:?}", addr);
         let subnets = self.addresses.clone();
         let node_id = self.node_id;
         // Send a message to each resolved address
-        for a in try!(resolve(&addr)) {
+        for a in resolve(&addr)? {
             // Ignore error this time
             let mut msg = Message::Init(0, node_id, subnets.clone());
             self.send_msg(a, &mut msg).ok();
@@ -449,7 +449,7 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
             let peers = self.peers.subset(peer_num);
             // ...and send them to all peers
             let mut msg = Message::Peers(peers);
-            try!(self.broadcast_msg(&mut msg));
+            self.broadcast_msg(&mut msg)?;
             // Reschedule for next update
             self.next_peerlist = now + Time::from(self.update_freq);
         }
@@ -458,11 +458,11 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
             if entry.next > now {
                 continue
             }
-            try!(self.connect(&entry.resolved as &[SocketAddr]));
+            self.connect(&entry.resolved as &[SocketAddr])?;
         }
         for entry in &mut self.reconnect_peers {
             // Schedule for next second if node is connected
-            if try!(self.peers.is_connected(&entry.resolved as &[SocketAddr])) {
+            if self.peers.is_connected(&entry.resolved as &[SocketAddr])? {
                 entry.tries = 0;
                 entry.timeout = 1;
                 entry.next = now + 1;
@@ -494,19 +494,19 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
         }
         if self.next_stats_out < now {
             // Write out the statistics
-            try!(self.write_out_stats().map_err(|err| Error::File("Failed to write stats file", err)));
+            self.write_out_stats().map_err(|err| Error::File("Failed to write stats file", err))?;
             self.next_stats_out = now + STATS_INTERVAL;
             self.traffic.period(Some(60));
         }
         if let Some(peers) = self.beacon_serializer.get_cmd_results() {
             debug!("Loaded beacon with peers: {:?}", peers);
             for peer in peers {
-                try!(self.connect_sock(peer));
+                self.connect_sock(peer)?;
             }
         }
         if self.next_beacon < now {
-            try!(self.store_beacon());
-            try!(self.load_beacon());
+            self.store_beacon()?;
+            self.load_beacon()?;
             self.next_beacon = now + Time::from(self.config.beacon_interval);
         }
         Ok(())
@@ -517,9 +517,9 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
         if let Some(ref path) = self.config.beacon_store {
             let peers: Vec<_> = self.own_addresses.choose_multiple(&mut thread_rng(),3).cloned().collect();
             if path.starts_with('|') {
-                try!(self.beacon_serializer.write_to_cmd(&peers, &path[1..]).map_err(|e| Error::Beacon("Failed to call beacon command", e)));
+                self.beacon_serializer.write_to_cmd(&peers, &path[1..]).map_err(|e| Error::Beacon("Failed to call beacon command", e))?;
             } else {
-                try!(self.beacon_serializer.write_to_file(&peers, &path).map_err(|e| Error::Beacon("Failed to write beacon to file", e)));
+                self.beacon_serializer.write_to_file(&peers, &path).map_err(|e| Error::Beacon("Failed to write beacon to file", e))?;
             }
         }
         Ok(())
@@ -530,17 +530,17 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
         let peers;
         if let Some(ref path) = self.config.beacon_load {
             if path.starts_with('|') {
-                try!(self.beacon_serializer.read_from_cmd(&path[1..], Some(50)).map_err(|e| Error::Beacon("Failed to call beacon command", e)));
+                self.beacon_serializer.read_from_cmd(&path[1..], Some(50)).map_err(|e| Error::Beacon("Failed to call beacon command", e))?;
                 return Ok(())
             } else {
-                peers = try!(self.beacon_serializer.read_from_file(&path, Some(50)).map_err(|e| Error::Beacon("Failed to read beacon from file", e)));
+                peers = self.beacon_serializer.read_from_file(&path, Some(50)).map_err(|e| Error::Beacon("Failed to read beacon from file", e))?;
             }
         } else {
             return Ok(())
         }
         debug!("Loaded beacon with peers: {:?}", peers);
         for peer in peers {
-            try!(self.connect_sock(peer));
+            self.connect_sock(peer)?;
         }
         Ok(())
     }
@@ -549,14 +549,14 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
     fn write_out_stats(&mut self) -> Result<(), io::Error> {
         if self.config.stats_file.is_none() { return Ok(()) }
         debug!("Writing out stats");
-        let mut f = try!(File::create(self.config.stats_file.as_ref().unwrap()));
-        try!(self.peers.write_out(&mut f));
-        try!(writeln!(&mut f));
-        try!(self.table.write_out(&mut f));
-        try!(writeln!(&mut f));
-        try!(self.traffic.write_out(&mut f));
-        try!(writeln!(&mut f));
-        try!(fs::set_permissions(self.config.stats_file.as_ref().unwrap(), Permissions::from_mode(0o644)));
+        let mut f = File::create(self.config.stats_file.as_ref().unwrap())?;
+        self.peers.write_out(&mut f)?;
+        writeln!(&mut f)?;
+        self.table.write_out(&mut f)?;
+        writeln!(&mut f)?;
+        self.traffic.write_out(&mut f)?;
+        writeln!(&mut f)?;
+        fs::set_permissions(self.config.stats_file.as_ref().unwrap(), Permissions::from_mode(0o644))?;
         Ok(())
     }
 
@@ -577,26 +577,26 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
     /// - with `Error::ParseError` if the payload data failed to parse
     /// - with `Error::SocketError` if sending a message fails
     pub fn handle_interface_data(&mut self, payload: &mut [u8], start: usize, end: usize) -> Result<(), Error> {
-        let (src, dst) = try!(P::parse(&payload[start..end]));
+        let (src, dst) = P::parse(&payload[start..end])?;
         debug!("Read data from interface: src: {}, dst: {}, {} bytes", src, dst, end-start);
         self.traffic.count_out_payload(dst, src, end-start);
         match self.table.lookup(&dst) {
             Some(addr) => { // Peer found for destination
                 debug!("Found destination for {} => {}", dst, addr);
-                try!(self.send_msg(addr, &mut Message::Data(payload, start, end)));
+                self.send_msg(addr, &mut Message::Data(payload, start, end))?;
                 if !self.peers.contains_addr(&addr) {
                     // If the peer is not actually connected, remove the entry in the table and try
                     // to reconnect.
                     warn!("Destination for {} not found in peers: {}", dst, addr);
                     self.table.remove(&dst);
-                    try!(self.connect_sock(addr));
+                    self.connect_sock(addr)?;
                 }
             },
             None => {
                 if self.broadcast {
                     debug!("No destination for {} found, broadcasting", dst);
                     let mut msg = Message::Data(payload, start, end);
-                    try!(self.broadcast_msg(&mut msg));
+                    self.broadcast_msg(&mut msg)?;
                 } else {
                     debug!("No destination for {} found, dropping", dst);
                 }
@@ -642,7 +642,7 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
         debug!("Received {:?} from {}", msg, peer);
         match msg {
             Message::Data(payload, start, end) => {
-                let (src, dst) = try!(P::parse(&payload[start..end]));
+                let (src, dst) = P::parse(&payload[start..end])?;
                 debug!("Writing data to device: {} bytes", end-start);
                 self.traffic.count_in_payload(src, dst, end-start);
                 if let Err(e) = self.device.write(&mut payload[..end], start) {
@@ -658,14 +658,14 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
             Message::Peers(peers) => {
                 // Connect to sender if not connected
                 if !self.peers.contains_addr(&peer) {
-                    try!(self.connect_sock(peer));
+                    self.connect_sock(peer)?;
                 }
                 if let Some(node_id) = self.peers.get_node_id(&peer) {
                     self.peers.make_primary(node_id, peer);
                 }
                 // Connect to all peers in the message
                 for p in &peers {
-                    try!(self.connect_sock(*p));
+                    self.connect_sock(*p)?;
                 }
                 // Refresh peer
                 self.peers.refresh(&peer);
@@ -689,11 +689,11 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
                 if stage == 0 {
                     let own_addrs = self.addresses.clone();
                     let own_node_id = self.node_id;
-                    try!(self.send_msg(peer, &mut Message::Init(stage+1, own_node_id, own_addrs)));
+                    self.send_msg(peer, &mut Message::Init(stage+1, own_node_id, own_addrs))?;
                 }
                 // Send peers in any case
                 let peers = self.peers.as_vec();
-                try!(self.send_msg(peer, &mut Message::Peers(peers)));
+                self.send_msg(peer, &mut Message::Peers(peers))?;
             },
             Message::Close => {
                 self.peers.remove(&peer);
diff --git a/src/device.rs b/src/device.rs
index 87b6ff8..e4bdee6 100644
--- a/src/device.rs
+++ b/src/device.rs
@@ -107,7 +107,7 @@ impl TunTapDevice {
         if type_ == Type::Dummy {
             return Self::dummy(ifname, path, type_);
         }
-        let fd = try!(fs::OpenOptions::new().read(true).write(true).open(path));
+        let fd = fs::OpenOptions::new().read(true).write(true).open(path)?;
         // Add trailing \0 to interface name
         let mut ifname_string = String::with_capacity(32);
         ifname_string.push_str(ifname);
@@ -156,7 +156,7 @@ impl TunTapDevice {
     #[allow(dead_code)]
     pub fn dummy(ifname: &str, path: &str, type_: Type) -> io::Result<Self> {
         Ok(TunTapDevice{
-            fd: try!(fs::OpenOptions::new().create(true).read(true).write(true).open(path)),
+            fd: fs::OpenOptions::new().create(true).read(true).write(true).open(path)?,
             ifname: ifname.to_string(),
             type_
         })
@@ -218,7 +218,7 @@ impl Device for TunTapDevice {
     }
 
     fn read(&mut self, mut buffer: &mut [u8]) -> Result<(usize, usize), Error> {
-        let read = try!(self.fd.read(&mut buffer).map_err(|e| Error::TunTapDev("Read error", e)));
+        let read = self.fd.read(&mut buffer).map_err(|e| Error::TunTapDev("Read error", e))?;
         let (start, read) = self.correct_data_after_read(&mut buffer, 0, read);
         Ok((start, read))
     }
diff --git a/src/ethernet.rs b/src/ethernet.rs
index be11906..f4f9993 100644
--- a/src/ethernet.rs
+++ b/src/ethernet.rs
@@ -49,8 +49,8 @@ impl Protocol for Frame {
             dst[2..8].copy_from_slice(dst_data);
             Ok((Address{data: src, len: 8}, Address{data: dst, len: 8}))
         } else {
-            let src = try!(Address::read_from_fixed(src_data, 6));
-            let dst = try!(Address::read_from_fixed(dst_data, 6));
+            let src = Address::read_from_fixed(src_data, 6)?;
+            let dst = Address::read_from_fixed(dst_data, 6)?;
             Ok((src, dst))
         }
     }
@@ -105,9 +105,9 @@ impl<TS: TimeSource> Table for SwitchTable<TS> {
     /// Write out the table
     fn write_out<W: Write>(&self, out: &mut W) -> Result<(), io::Error> {
         let now = TS::now();
-        try!(writeln!(out, "Switch table:"));
+        writeln!(out, "Switch table:")?;
         for (addr, val) in &self.table {
-            try!(writeln!(out, " - {} => {} (ttl: {} s)", addr, val.address, val.timeout - now));
+            writeln!(out, " - {} => {} (ttl: {} s)", addr, val.address, val.timeout - now)?;
         }
         Ok(())
     }
diff --git a/src/ip.rs b/src/ip.rs
index ddd2518..6d9570b 100644
--- a/src/ip.rs
+++ b/src/ip.rs
@@ -34,16 +34,16 @@ impl Protocol for Packet {
                 if data.len() < 20 {
                     return Err(Error::Parse("Truncated IPv4 header"));
                 }
-                let src = try!(Address::read_from_fixed(&data[12..], 4));
-                let dst = try!(Address::read_from_fixed(&data[16..], 4));
+                let src = Address::read_from_fixed(&data[12..], 4)?;
+                let dst = Address::read_from_fixed(&data[16..], 4)?;
                 Ok((src, dst))
             },
             6 => {
                 if data.len() < 40 {
                     return Err(Error::Parse("Truncated IPv6 header"));
                 }
-                let src = try!(Address::read_from_fixed(&data[8..], 16));
-                let dst = try!(Address::read_from_fixed(&data[24..], 16));
+                let src = Address::read_from_fixed(&data[8..], 16)?;
+                let dst = Address::read_from_fixed(&data[24..], 16)?;
                 Ok((src, dst))
             },
             _ => Err(Error::Parse("Invalid version"))
@@ -149,10 +149,10 @@ impl Table for RoutingTable {
 
     /// Write out the table
     fn write_out<W: Write>(&self, out: &mut W) -> Result<(), io::Error> {
-        try!(writeln!(out, "Routing table:"));
+        writeln!(out, "Routing table:")?;
         for entries in self.0.values() {
             for entry in entries {
-                try!(writeln!(out, " - {}/{} => {}", entry.bytes, entry.prefix_len, entry.address));
+                writeln!(out, " - {}/{} => {}", entry.bytes, entry.prefix_len, entry.address)?;
             }
         }
         Ok(())
diff --git a/src/main.rs b/src/main.rs
index 41755ed..f3acc8d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -51,15 +51,15 @@ use std::path::Path;
 use std::io::{self, Write};
 use std::net::UdpSocket;
 
-use device::{TunTapDevice, Device, Type};
-use ethernet::SwitchTable;
-use ip::RoutingTable;
-use types::{Mode, Range, Protocol, HeaderMagic, Error};
-use cloud::GenericCloud;
-use crypto::{Crypto, CryptoMethod};
-use port_forwarding::PortForwarding;
-use util::{Duration, SystemTimeSource};
-use config::Config;
+use crate::device::{TunTapDevice, Device, Type};
+use crate::ethernet::SwitchTable;
+use crate::ip::RoutingTable;
+use crate::types::{Mode, Range, Protocol, HeaderMagic, Error};
+use crate::cloud::GenericCloud;
+use crate::crypto::{Crypto, CryptoMethod};
+use crate::port_forwarding::PortForwarding;
+use crate::util::{Duration, SystemTimeSource};
+use crate::config::Config;
 
 
 const VERSION: u8 = 1;
@@ -109,7 +109,7 @@ struct DualLogger {
 impl DualLogger {
     pub fn new<P: AsRef<Path>>(path: Option<P>) -> Result<Self, io::Error> {
         if let Some(path) = path {
-            let file = try!(File::create(path));
+            let file = File::create(path)?;
             Ok(DualLogger{file: Mutex::new(Some(file))})
         } else {
             Ok(DualLogger{file: Mutex::new(None)})
diff --git a/src/poll/epoll.rs b/src/poll/epoll.rs
index 226b14c..6e94d24 100644
--- a/src/poll/epoll.rs
+++ b/src/poll/epoll.rs
@@ -6,11 +6,11 @@ use libc;
 
 use std::os::unix::io::RawFd;
 use std::io;
-use device::Device;
+use crate::device::Device;
 
 use super::WaitResult;
-use ::device::Type;
-use net::Socket;
+use crate::device::Type;
+use crate::net::Socket;
 
 pub struct EpollWait {
     poll_fd: RawFd,
diff --git a/src/tests/mod.rs b/src/tests/mod.rs
index 2d851b7..bb35588 100644
--- a/src/tests/mod.rs
+++ b/src/tests/mod.rs
@@ -73,7 +73,7 @@ fn msg6_put<P: Protocol, T: Table>(node: &mut TestNode<P, T>, from: SocketAddr,
 }
 
 fn simulate<P: Protocol, T: Table>(nodes: &mut [(&mut TestNode<P, T>, SocketAddr)]) {
-    for (ref mut node, ref from_addr) in nodes.iter_mut() {
+    for (ref mut node, ref _from_addr) in nodes.iter_mut() {
         while node.device().has_inbound() {
             node.trigger_device_event();
         }
diff --git a/src/traffic.rs b/src/traffic.rs
index 4d30353..3f58b4c 100644
--- a/src/traffic.rs
+++ b/src/traffic.rs
@@ -105,18 +105,18 @@ impl TrafficStats {
 
     #[inline]
     pub fn write_out<W: Write>(&self, out: &mut W) -> Result<(), io::Error> {
-        try!(writeln!(out, "Peer traffic:"));
+        writeln!(out, "Peer traffic:")?;
         let mut peers: Vec<_> = self.get_peer_traffic().collect();
         peers.sort_unstable_by_key(|(_, data)| (data.out_bytes + data.in_bytes));
         for (addr, data) in peers.iter().rev() {
-            try!(writeln!(out, " - {}: in={}/s, out={}/s", addr, Bytes(data.in_bytes/60), Bytes(data.out_bytes/60)));
+            writeln!(out, " - {}: in={}/s, out={}/s", addr, Bytes(data.in_bytes/60), Bytes(data.out_bytes/60))?;
         }
-        try!(writeln!(out));
-        try!(writeln!(out, "Payload traffic:"));
+        writeln!(out)?;
+        writeln!(out, "Payload traffic:")?;
         let mut payload: Vec<_> = self.get_payload_traffic().collect();
         payload.sort_unstable_by_key(|(_, data)| (data.out_bytes + data.in_bytes));
         for ((remote, local), data) in payload.iter().rev() {
-            try!(writeln!(out, " - {} <-> {}: in={}/s, out={}/s", remote, local, Bytes(data.in_bytes/60), Bytes(data.out_bytes/60)));
+            writeln!(out, " - {} <-> {}: in={}/s, out={}/s", remote, local, Bytes(data.in_bytes/60), Bytes(data.out_bytes/60))?;
         }
         Ok(())
     }
diff --git a/src/types.rs b/src/types.rs
index 6ac1ac1..8c65abf 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -29,7 +29,7 @@ impl Address {
             return Err(Error::Parse("Address too short"));
         }
         let len = data[0] as usize;
-        let addr = try!(Address::read_from_fixed(&data[1..], len));
+        let addr = Address::read_from_fixed(&data[1..], len)?;
         Ok((addr, len + 1))
     }
 
@@ -121,7 +121,7 @@ impl FromStr for Address {
         if parts.len() == 6 {
             let mut bytes = [0; 16];
             for i in 0..6 {
-                bytes[i] = try!(u8::from_str_radix(parts[i], 16).map_err(|_| Error::Parse("Failed to parse mac")));
+                bytes[i] = u8::from_str_radix(parts[i], 16).map_err(|_| Error::Parse("Failed to parse mac"))?;
             }
             return Ok(Address{data: bytes, len: 6});
         }
@@ -139,7 +139,7 @@ pub struct Range {
 impl Range {
     #[inline]
     pub fn read_from(data: &[u8]) -> Result<(Range, usize), Error> {
-        let (address, read) = try!(Address::read_from(data));
+        let (address, read) = Address::read_from(data)?;
         if data.len() < read + 1 {
             return Err(Error::Parse("Range too short"));
         }
@@ -164,9 +164,9 @@ impl FromStr for Range {
             Some(pos) => pos,
             None => return Err(Error::Parse("Invalid range format"))
         };
-        let prefix_len = try!(u8::from_str(&text[pos+1..])
-            .map_err(|_| Error::Parse("Failed to parse prefix length")));
-        let base = try!(Address::from_str(&text[..pos]));
+        let prefix_len = u8::from_str(&text[pos+1..])
+            .map_err(|_| Error::Parse("Failed to parse prefix length"))?;
+        let base = Address::from_str(&text[..pos])?;
         Ok(Range{base, prefix_len})
     }
 }
@@ -207,16 +207,16 @@ impl fmt::Display for Mode {
 }
 
 pub trait Table {
-    fn learn(&mut self, Address, Option<u8>, SocketAddr);
-    fn lookup(&mut self, &Address) -> Option<SocketAddr>;
+    fn learn(&mut self, _: Address, _: Option<u8>, _: SocketAddr);
+    fn lookup(&mut self, _: &Address) -> Option<SocketAddr>;
     fn housekeep(&mut self);
     fn write_out<W: Write>(&self, out: &mut W) -> Result<(), io::Error>;
-    fn remove(&mut self, &Address) -> bool;
-    fn remove_all(&mut self, &SocketAddr);
+    fn remove(&mut self, _: &Address) -> bool;
+    fn remove_all(&mut self, _: &SocketAddr);
 }
 
 pub trait Protocol: Sized {
-    fn parse(&[u8]) -> Result<(Address, Address), Error>;
+    fn parse(_: &[u8]) -> Result<(Address, Address), Error>;
 }
 
 #[derive(Debug)]
@@ -278,10 +278,10 @@ fn address_decode_encode() {
 
 #[test]
 fn address_eq() {
-    assert!(Address::read_from_fixed(&[1,2,3,4], 4).unwrap() == Address::read_from_fixed(&[1,2,3,4], 4).unwrap());
-    assert!(Address::read_from_fixed(&[1,2,3,4], 4).unwrap() != Address::read_from_fixed(&[1,2,3,5], 4).unwrap());
-    assert!(Address::read_from_fixed(&[1,2,3,4], 3).unwrap() == Address::read_from_fixed(&[1,2,3,5], 3).unwrap());
-    assert!(Address::read_from_fixed(&[1,2,3,4], 3).unwrap() != Address::read_from_fixed(&[1,2,3,4], 4).unwrap());
+    assert_eq!(Address::read_from_fixed(&[1,2,3,4], 4).unwrap(), Address::read_from_fixed(&[1,2,3,4], 4).unwrap());
+    assert_ne!(Address::read_from_fixed(&[1,2,3,4], 4).unwrap(), Address::read_from_fixed(&[1,2,3,5], 4).unwrap());
+    assert_eq!(Address::read_from_fixed(&[1,2,3,4], 3).unwrap(), Address::read_from_fixed(&[1,2,3,5], 3).unwrap());
+    assert_ne!(Address::read_from_fixed(&[1,2,3,4], 3).unwrap(), Address::read_from_fixed(&[1,2,3,4], 4).unwrap());
 }
 
 #[test]
diff --git a/src/udpmessage.rs b/src/udpmessage.rs
index f6f9b71..8c66dec 100644
--- a/src/udpmessage.rs
+++ b/src/udpmessage.rs
@@ -71,14 +71,14 @@ impl<'a> fmt::Debug for Message<'a> {
         match *self {
             Message::Data(_, start, end) => write!(formatter, "Data({} bytes)", end-start),
             Message::Peers(ref peers) => {
-                try!(write!(formatter, "Peers ["));
+                write!(formatter, "Peers [")?;
                 let mut first = true;
                 for p in peers {
                     if !first {
-                        try!(write!(formatter, ", "));
+                        write!(formatter, ", ")?;
                     }
                     first = false;
-                    try!(write!(formatter, "{}", p));
+                    write!(formatter, "{}", p)?;
                 }
                 write!(formatter, "]")
             },
@@ -91,7 +91,7 @@ impl<'a> fmt::Debug for Message<'a> {
 #[allow(unknown_lints,clippy::needless_range_loop)]
 pub fn decode<'a>(data: &'a mut [u8], magic: HeaderMagic, crypto: &Crypto) -> Result<Message<'a>, Error> {
     let mut end = data.len();
-    let (header, mut pos) = try!(TopHeader::read_from(&data[..end]));
+    let (header, mut pos) = TopHeader::read_from(&data[..end])?;
     if header.magic != magic {
         return Err(Error::WrongHeaderMagic(header.magic));
     }
@@ -107,7 +107,7 @@ pub fn decode<'a>(data: &'a mut [u8], magic: HeaderMagic, crypto: &Crypto) -> Re
             let (before, after) = data.split_at_mut(pos);
             let (nonce, crypto_data) = after.split_at_mut(len);
             pos += len;
-            end = try!(crypto.decrypt(crypto_data, nonce, &before[..TopHeader::size()])) + pos;
+            end = crypto.decrypt(crypto_data, nonce, &before[..TopHeader::size()])? + pos;
         }
         assert_eq!(end, data.len()-crypto.additional_bytes());
     }
@@ -169,7 +169,7 @@ pub fn decode<'a>(data: &'a mut [u8], magic: HeaderMagic, crypto: &Crypto) -> Re
             pos += 1;
             let mut addrs = Vec::with_capacity(count);
             for _ in 0..count {
-                let (range, read) = try!(Range::read_from(&data[pos..end]));
+                let (range, read) = Range::read_from(&data[pos..end])?;
                 pos += read;
                 addrs.push(range);
             }
diff --git a/src/util.rs b/src/util.rs
index 927289c..c8d3499 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -117,7 +117,7 @@ macro_rules! try_fail {
 
 #[allow(unknown_lints,clippy::needless_pass_by_value)]
 pub fn resolve<Addr: ToSocketAddrs+fmt::Debug>(addr: Addr) -> Result<Vec<SocketAddr>, Error> {
-    let addrs = try!(addr.to_socket_addrs().map_err(|_| Error::Name(format!("{:?}", addr))));
+    let addrs = addr.to_socket_addrs().map_err(|_| Error::Name(format!("{:?}", addr)))?;
     // Remove duplicates in addrs (why are there duplicates???)
     let mut addrs = addrs.collect::<Vec<_>>();
     // Try IPv4 first as it usually is faster

From f2e6a1ef7b22f027ce2619edc0b5f91b25fb81d5 Mon Sep 17 00:00:00 2001
From: Dennis Schwerdel <schwerdel@googlemail.com>
Date: Fri, 1 Mar 2019 23:25:42 +0100
Subject: [PATCH 2/3] Clippy

---
 src/beacon.rs     |  3 ++-
 src/cloud.rs      |  9 +++++----
 src/device.rs     |  8 +++++++-
 src/main.rs       | 16 +---------------
 src/udpmessage.rs | 10 +++++-----
 src/util.rs       | 12 +++++++++---
 6 files changed, 29 insertions(+), 29 deletions(-)

diff --git a/src/beacon.rs b/src/beacon.rs
index 7b3903d..c5cca5b 100644
--- a/src/beacon.rs
+++ b/src/beacon.rs
@@ -31,7 +31,7 @@ fn base_62_sanitize(data: &str) -> String {
 }
 
 fn sha512(data: &[u8]) -> Vec<u8> {
-    digest::digest(&digest::SHA512, data).as_ref().iter().map(|b| *b).collect()
+    digest::digest(&digest::SHA512, data).as_ref().to_vec()
 }
 
 struct FutureResult<T> {
@@ -72,6 +72,7 @@ impl<TS: TimeSource> BeaconSerializer<TS> {
         sha512(&data)
     }
 
+    #[allow(clippy::needless_range_loop)]
     fn mask_with_keystream(&self, data: &mut [u8], type_: u8, seed: u8) {
         let mut iter = 0;
         let mut mask = self.get_keystream(type_, seed, iter);
diff --git a/src/cloud.rs b/src/cloud.rs
index fc42d0e..845babd 100644
--- a/src/cloud.rs
+++ b/src/cloud.rs
@@ -143,7 +143,7 @@ impl<TS: TimeSource> PeerList<TS> {
 
     #[inline]
     pub fn get_node_id(&self, addr: &SocketAddr) -> Option<NodeId> {
-        self.addresses.get(addr).map(|n| *n)
+        self.addresses.get(addr).cloned()
     }
 
     #[inline]
@@ -230,6 +230,7 @@ pub struct GenericCloud<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSou
 }
 
 impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D, P, T, S, TS> {
+    #[allow(clippy::too_many_arguments)]
     pub fn new(config: &Config, device: D, table: T,
         learning: bool, broadcast: bool, addresses: Vec<Range>,
         crypto: Crypto, port_forwarding: Option<PortForwarding>
@@ -271,7 +272,7 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
             _dummy_ts: PhantomData
         };
         res.initialize();
-        return res
+        res
     }
 
     #[inline]
@@ -292,7 +293,7 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
         let msg_data = encode(msg, &mut self.buffer_out, self.magic, &mut self.crypto);
         for addr in self.peers.peers.keys() {
             self.traffic.count_out_traffic(*addr, msg_data.len());
-            let mut socket = match *addr {
+            let socket = match *addr {
                 SocketAddr::V4(_) => &mut self.socket4,
                 SocketAddr::V6(_) => &mut self.socket6
             };
@@ -715,7 +716,7 @@ impl<D: Device, P: Protocol, T: Table, S: Socket, TS: TimeSource> GenericCloud<D
 
     fn handle_socket_data(&mut self, src: SocketAddr, data: &mut [u8]) {
         let size = data.len();
-        if let Err(e) = decode(data, self.magic, &mut self.crypto).and_then(|msg| {
+        if let Err(e) = decode(data, self.magic, &self.crypto).and_then(|msg| {
             self.traffic.count_in_traffic(src, size);
             self.handle_net_message(src, msg)
         }) {
diff --git a/src/device.rs b/src/device.rs
index e4bdee6..befe4c2 100644
--- a/src/device.rs
+++ b/src/device.rs
@@ -248,7 +248,7 @@ pub struct MockDevice {
 
 impl MockDevice {
     pub fn new() -> Self {
-        Self { outbound: VecDeque::new(), inbound: VecDeque::new() }
+        Default::default()
     }
 
     pub fn put_inbound(&mut self, data: Vec<u8>) {
@@ -288,6 +288,12 @@ impl Device for MockDevice {
     }
 }
 
+impl Default for MockDevice {
+    fn default() -> Self {
+        Self { outbound: VecDeque::new(), inbound: VecDeque::new() }
+    }
+}
+
 impl AsRawFd for MockDevice {
     #[inline]
     fn as_raw_fd(&self) -> RawFd {
diff --git a/src/main.rs b/src/main.rs
index f3acc8d..c3ed39d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,22 +5,8 @@
 #![cfg_attr(feature = "bench", feature(test))]
 
 #[macro_use] extern crate log;
-extern crate time;
-extern crate docopt;
 #[macro_use] extern crate serde_derive;
-extern crate serde;
-extern crate serde_yaml;
-extern crate signal;
-extern crate libc;
-extern crate rand;
-extern crate fnv;
-extern crate net2;
-extern crate yaml_rust;
-extern crate igd;
-extern crate siphasher;
-extern crate daemonize;
-extern crate ring;
-extern crate base_62;
+
 #[cfg(test)] extern crate tempfile;
 #[cfg(feature = "bench")] extern crate test;
 
diff --git a/src/udpmessage.rs b/src/udpmessage.rs
index 8c66dec..1625376 100644
--- a/src/udpmessage.rs
+++ b/src/udpmessage.rs
@@ -273,17 +273,17 @@ pub fn encode<'a>(msg: &'a mut Message, mut buf: &'a mut [u8], magic: HeaderMagi
 
 impl<'a> PartialEq for Message<'a> {
     fn eq(&self, other: &Message) -> bool {
-        match self {
-            &Message::Data(ref data1, start1, end1) => if let &Message::Data(ref data2, start2, end2) = other {
+        match *self {
+            Message::Data(ref data1, start1, end1) => if let Message::Data(ref data2, start2, end2) = *other {
                 data1[start1..end1] == data2[start2..end2]
             } else { false },
-            &Message::Peers(ref peers1) => if let &Message::Peers(ref peers2) = other {
+            Message::Peers(ref peers1) => if let Message::Peers(ref peers2) = *other {
                 peers1 == peers2
             } else { false },
-            &Message::Init(step1, node_id1, ref ranges1) => if let &Message::Init(step2, node_id2, ref ranges2) = other {
+            Message::Init(step1, node_id1, ref ranges1) => if let Message::Init(step2, node_id2, ref ranges2) = *other {
                 step1 == step2 && node_id1 == node_id2 && ranges1 == ranges2
             } else { false },
-            &Message::Close => if let &Message::Close = other {
+            Message::Close => if let Message::Close = *other {
                 true
             } else { false }
         }
diff --git a/src/util.rs b/src/util.rs
index c8d3499..3b9e872 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -177,9 +177,7 @@ pub struct CtrlC {
 
 impl CtrlC {
     pub fn new() -> Self {
-        let dummy_time = Instant::now();
-        let trap = Trap::trap(&[Signal::SIGINT, Signal::SIGTERM, Signal::SIGQUIT]);
-        Self { dummy_time, trap }
+        Default::default()
     }
 
     pub fn was_pressed(&self) -> bool {
@@ -187,6 +185,14 @@ impl CtrlC {
     }
 }
 
+impl Default for CtrlC {
+    fn default() -> Self {
+        let dummy_time = Instant::now();
+        let trap = Trap::trap(&[Signal::SIGINT, Signal::SIGTERM, Signal::SIGQUIT]);
+        Self { dummy_time, trap }
+    }
+}
+
 
 pub trait TimeSource: Sync + Copy + Send + 'static {
     fn now() -> Time;

From 3cc40ff8d1baa8168e61c76a976b707aa2f27d3a Mon Sep 17 00:00:00 2001
From: Dennis Schwerdel <schwerdel@googlemail.com>
Date: Sat, 2 Mar 2019 00:50:55 +0100
Subject: [PATCH 3/3] Updates

---
 CHANGELOG.md           |   5 ++
 Cargo.lock             | 158 ++++++++++++++++-------------------------
 builder/Dockerfile-deb |   2 +-
 src/udpmessage.rs      |  13 ++--
 4 files changed, 74 insertions(+), 104 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 50a38d9..4e52fa9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,12 @@ This project follows [semantic versioning](http://semver.org).
 ### UNRELEASED
 
 - [added] Added ability to publish small beacons for rendezvous
+- [added] Added build chain for pacakges
+- [added] Added more tests
 - [changed] Allow to build binary without manpage
+- [changed] Rust edition 2018
+- [changed] Rust version 1.33.0
+- [changed] Updated dependencies
 - [fixed] Fixed bug that could cause repeated initialization messages
 
 ### v0.9.1 (2019-02-16)
diff --git a/Cargo.lock b/Cargo.lock
index 8ee1531..97c710d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 [[package]]
 name = "aho-corasick"
-version = "0.6.9"
+version = "0.6.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -13,13 +13,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "backtrace"
-version = "0.3.13"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "backtrace-sys 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-demangle 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -29,8 +29,8 @@ name = "backtrace-sys"
 version = "0.1.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -70,7 +70,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cc"
-version = "1.0.29"
+version = "1.0.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -91,7 +91,7 @@ name = "daemonize"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -99,10 +99,10 @@ name = "docopt"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -116,7 +116,7 @@ name = "failure"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -127,7 +127,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.26 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -193,12 +193,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "lazy_static"
-version = "1.2.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.48"
+version = "0.2.49"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -246,7 +246,7 @@ version = "0.2.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -256,9 +256,9 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -289,7 +289,7 @@ name = "num_cpus"
 version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -323,7 +323,7 @@ name = "rand"
 version = "0.3.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -333,7 +333,7 @@ version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -345,14 +345,14 @@ version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_chacha 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_hc 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_isaac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_jitter 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_os 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_pcg 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -400,7 +400,7 @@ name = "rand_jitter"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -412,7 +412,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -420,11 +420,11 @@ dependencies = [
 
 [[package]]
 name = "rand_pcg"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -453,7 +453,7 @@ name = "regex"
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-syntax 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -462,10 +462,10 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.1.0"
+version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-syntax 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -501,9 +501,9 @@ name = "ring"
 version = "0.14.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "spin 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -514,45 +514,24 @@ name = "rustc-demangle"
 version = "0.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "rustc_version"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "safemem"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "semver"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "semver-parser"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "serde"
-version = "1.0.87"
+version = "1.0.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde_derive"
-version = "1.0.87"
+version = "1.0.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.26 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.27 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -562,7 +541,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dtoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "linked-hash-map 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "yaml-rust 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -571,7 +550,7 @@ name = "signal"
 version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "nix 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -582,11 +561,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "smallvec"
-version = "0.6.8"
+version = "0.6.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "spin"
@@ -600,7 +576,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "syn"
-version = "0.15.26"
+version = "0.15.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -615,7 +591,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 0.4.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.26 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -625,7 +601,7 @@ version = "3.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -637,7 +613,7 @@ name = "thread_local"
 version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -645,7 +621,7 @@ name = "time"
 version = "0.1.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -686,7 +662,7 @@ name = "unicode-normalization"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "smallvec 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -694,14 +670,6 @@ name = "unicode-xid"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "unreachable"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "untrusted"
 version = "0.6.2"
@@ -737,19 +705,19 @@ name = "vpncloud"
 version = "0.9.1"
 dependencies = [
  "base-62 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "daemonize 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "docopt 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "igd 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.14.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_yaml 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "signal 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "siphasher 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -802,16 +770,16 @@ dependencies = [
 ]
 
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+"checksum aho-corasick 0.6.10 (registry+https://github.com/rust-lang/crates.io-index)" = "81ce3d38065e618af2d7b77e10c5ad9a069859b4be3c2250f674af3840d9c8a5"
 "checksum autocfg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a6d640bee2da49f60a4068a7fae53acde8982514ab7bae8b8cea9e88cbcfd799"
-"checksum backtrace 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)" = "b5b493b66e03090ebc4343eb02f94ff944e0cbc9ac6571491d170ba026741eb5"
+"checksum backtrace 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "cd5a90e2b463010cd0e0ce9a11d4a9d5d58d9f41d4a6ba3dcaf9e68b466e88b4"
 "checksum backtrace-sys 0.1.28 (registry+https://github.com/rust-lang/crates.io-index)" = "797c830ac25ccc92a7f8a7b9862bde440715531514594a6154e3d4a54dd769b6"
 "checksum base-62 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f28ebd71b3e708e895b83ec2d35c6e2ef96e34945706bf4d73826354e84f89b2"
 "checksum base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "489d6c0ed21b11d038c31b6ceccca973e65d73ba3bd8ecb9a2babf5546164643"
 "checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
 "checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
 "checksum byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a019b10a2a7cdeb292db131fc8113e57ea2a908f6e7894b0c3c671893b65dbeb"
-"checksum cc 1.0.29 (registry+https://github.com/rust-lang/crates.io-index)" = "4390a3b5f4f6bce9c1d0c00128379df433e53777fdd30e92f16a529332baec4e"
+"checksum cc 1.0.30 (registry+https://github.com/rust-lang/crates.io-index)" = "d01c69d08ff207f231f07196e30f84c70f1c815b04f980f8b7b01ff01f05eb92"
 "checksum cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "082bb9b28e00d3c9d39cc03e64ce4cea0f1bb9b3fde493f0cbc008472d22bdf4"
 "checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
 "checksum daemonize 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4093d27eb267d617f03c2ee25d4c3ca525b89a76154001954a11984508ffbde5"
@@ -826,8 +794,8 @@ dependencies = [
 "checksum idna 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "38f09e0f0b1fb55fdee1f17470ad800da77af5186a1a76c026b679358b7e844e"
 "checksum igd 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "356a0dc23a4fa0f8ce4777258085d00a01ea4923b2efd93538fc44bf5e1bda76"
 "checksum language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"
-"checksum lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a374c89b9db55895453a74c1e38861d9deec0b01b405a82516e9d5de4820dea1"
-"checksum libc 0.2.48 (registry+https://github.com/rust-lang/crates.io-index)" = "e962c7641008ac010fa60a7dfdc1712449f29c44ef2d4702394aea943ee75047"
+"checksum lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bc5729f27f159ddd61f4df6228e827e86643d4d3e7c32183cb30a1c08f604a14"
+"checksum libc 0.2.49 (registry+https://github.com/rust-lang/crates.io-index)" = "413f3dfc802c5dc91dc570b05125b6cda9855edfaa9825c9849807876376e70e"
 "checksum linked-hash-map 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "70fb39025bc7cdd76305867c4eccf2f2dcf6e9a57f5b21a93e1c2d86cd03ec9e"
 "checksum log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
 "checksum log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c84ec4b527950aa83a329754b01dbe3f58361d1c5efacd1f6d68c494d08a17c6"
@@ -854,30 +822,27 @@ dependencies = [
 "checksum rand_isaac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ded997c9d5f13925be2a6fd7e66bf1872597f759fd9dd93513dd7e92e5a5ee08"
 "checksum rand_jitter 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7b9ea758282efe12823e0d952ddb269d2e1897227e464919a554f2a03ef1b832"
 "checksum rand_os 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b7c690732391ae0abafced5015ffb53656abfaec61b342290e5eb56b286a679d"
-"checksum rand_pcg 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "086bd09a33c7044e56bb44d5bdde5a60e7f119a9e95b0775f545de759a32fe05"
+"checksum rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "abf9b09b01790cfe0364f52bf32995ea3c39f4d2dd011eac241d2914146d0b44"
 "checksum rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cbf7e9e623549b0e21f6e97cf8ecf247c1a8fd2e8a992ae265314300b2455d5c"
 "checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
 "checksum redox_syscall 0.1.51 (registry+https://github.com/rust-lang/crates.io-index)" = "423e376fffca3dfa06c9e9790a9ccd282fafb3cc6e6397d01dbf64f9bacc6b85"
 "checksum regex 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "9329abc99e39129fcceabd24cf5d85b4671ef7c29c50e972bc5afe32438ec384"
-"checksum regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "37e7cbbd370869ce2e8dff25c7018702d10b21a20ef7135316f8daecd6c25b7f"
+"checksum regex 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "53ee8cfdddb2e0291adfb9f13d31d3bbe0a03c9a402c01b1e24188d86c35b24f"
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 "checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
 "checksum ring 0.14.6 (registry+https://github.com/rust-lang/crates.io-index)" = "426bc186e3e95cac1e4a4be125a4aca7e84c2d616ffc02244eef36e2a60a093c"
 "checksum rustc-demangle 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "adacaae16d02b6ec37fdc7acfcddf365978de76d1983d3ee22afc260e1ca9619"
-"checksum rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
 "checksum safemem 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8dca453248a96cb0749e36ccdfe2b0b4e54a61bfef89fb97ec621eb8e0a93dd9"
-"checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
-"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
-"checksum serde 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)" = "2e20fde37801e83c891a2dc4ebd3b81f0da4d1fb67a9e0a2a3b921e2536a58ee"
-"checksum serde_derive 1.0.87 (registry+https://github.com/rust-lang/crates.io-index)" = "633e97856567e518b59ffb2ad7c7a4fd4c5d91d9c7f32dd38a27b2bf7e8114ea"
+"checksum serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)" = "92514fb95f900c9b5126e32d020f5c6d40564c27a5ea6d1d7d9f157a96623560"
+"checksum serde_derive 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)" = "bb6eabf4b5914e88e24eea240bb7c9f9a2cbc1bbbe8d961d381975ec3c6b806c"
 "checksum serde_yaml 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)" = "0887a8e097a69559b56aa2526bf7aff7c3048cf627dff781f0b56a6001534593"
 "checksum signal 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "106428d9d96840ecdec5208c13ab8a4e28c38da1e0ccf2909fb44e41b992f897"
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-"checksum smallvec 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)" = "88aea073965ab29f6edb5493faf96ad662fb18aa9eeb186a3b7057951605ed15"
+"checksum smallvec 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)" = "c4488ae950c49d403731982257768f48fada354a5203fe81f9bb6f43ca9002be"
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 "checksum strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4f380125926a99e52bc279241539c018323fab05ad6368b56f93d9369ff550"
-"checksum syn 0.15.26 (registry+https://github.com/rust-lang/crates.io-index)" = "f92e629aa1d9c827b2bb8297046c1ccffc57c99b947a680d3ccff1f136a3bee9"
+"checksum syn 0.15.27 (registry+https://github.com/rust-lang/crates.io-index)" = "525bd55255f03c816e5d7f615587bd13030c7103354fadb104993dcee6a788ec"
 "checksum synstructure 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "73687139bf99285483c96ac0add482c3776528beac1d97d444f6e91f203a2015"
 "checksum tempfile 3.0.7 (registry+https://github.com/rust-lang/crates.io-index)" = "b86c784c88d98c801132806dadd3819ed29d8600836c4088e855cdf3e178ed8a"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
@@ -889,7 +854,6 @@ dependencies = [
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
 "checksum unicode-normalization 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "141339a08b982d942be2ca06ff8b076563cbe223d1befd5450716790d44e2426"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
-"checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
 "checksum untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "55cd1f4b4e96b46aeb8d4855db4a7a9bd96eeeb5c6a1ab54593328761642ce2f"
 "checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
 "checksum utf8-ranges 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "796f7e48bef87609f7ade7e06495a87d5cd06c7866e6a5cbfceffc558a243737"
diff --git a/builder/Dockerfile-deb b/builder/Dockerfile-deb
index b1e1edf..86930cc 100644
--- a/builder/Dockerfile-deb
+++ b/builder/Dockerfile-deb
@@ -9,7 +9,7 @@ RUN useradd -ms /bin/bash user
 USER user
 WORKDIR /home/user
 
-ENV RUST=1.32.0
+ENV RUST=1.33.0
 
 RUN curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain ${RUST}
 
diff --git a/src/udpmessage.rs b/src/udpmessage.rs
index 1625376..b974f1b 100644
--- a/src/udpmessage.rs
+++ b/src/udpmessage.rs
@@ -183,6 +183,12 @@ pub fn decode<'a>(data: &'a mut [u8], magic: HeaderMagic, crypto: &Crypto) -> Re
 
 #[allow(unknown_lints,clippy::needless_range_loop)]
 pub fn encode<'a>(msg: &'a mut Message, mut buf: &'a mut [u8], magic: HeaderMagic, crypto: &mut Crypto) -> &'a mut [u8] {
+    let header_type = match msg {
+        Message::Data(_, _, _) => 0,
+        Message::Peers(_) => 1,
+        Message::Init(_, _, _) => 2,
+        Message::Close => 3
+    };
     let mut start = 64;
     let mut end = 64;
     match *msg {
@@ -250,12 +256,7 @@ pub fn encode<'a>(msg: &'a mut Message, mut buf: &'a mut [u8], magic: HeaderMagi
     start -= crypto.nonce_bytes();
     let mut header = TopHeader::default();
     header.magic = magic;
-    header.msgtype = match *msg {
-        Message::Data(_, _, _) => 0,
-        Message::Peers(_) => 1,
-        Message::Init(_, _, _) => 2,
-        Message::Close => 3
-    };
+    header.msgtype = header_type;
     header.crypto_method = crypto.method();
     start -= TopHeader::size();
     header.write_to(&mut buf[start..]);