Update to tokio 1.1 (#2172)

## Issue Addressed

resolves #2129
resolves #2099 
addresses some of #1712
unblocks #2076
unblocks #2153 

## Proposed Changes

- Updates all the dependencies mentioned in #2129, except for web3. They haven't merged their tokio 1.0 update because they are waiting on some dependencies of their own. Since we only use web3 in tests, I think updating it in a separate issue is fine. If they are able to merge soon though, I can update in this PR. 

- Updates `tokio_util` to 0.6.2 and `bytes` to 1.0.1.

- We haven't made a discv5 release since merging tokio 1.0 updates so I'm using a commit rather than release atm. **Edit:** I think we should merge an update of `tokio_util` to 0.6.2 into discv5 before this release because it has panic fixes in `DelayQueue`  --> PR in discv5:  sigp/discv5#58

## Additional Info

tokio 1.0 changes that required some changes in lighthouse:

- `interval.next().await.is_some()` -> `interval.tick().await`
- `sleep` future is now `!Unpin` -> tokio-rs/tokio#3028
- `try_recv` has been temporarily removed from `mpsc` -> tokio-rs/tokio#3350
- stream features have moved to `tokio-stream` and `broadcast::Receiver::into_stream()` has been temporarily removed -> `tokio-rs/tokio#2870
- I've copied over the `BroadcastStream` wrapper from this PR, but can update to use `tokio-stream` once it's merged tokio-rs/tokio#3384

Co-authored-by: realbigsean <seananderson33@gmail.com>

account_manager/Cargo.toml

@@ -27,14 +27,13 @@ eth2_wallet = { path = "../crypto/eth2_wallet" }
 eth2_wallet_manager = { path = "../common/eth2_wallet_manager" }
 rand = "0.7.3"
 validator_dir = { path = "../common/validator_dir" }
-tokio = { version = "0.3.5", features = ["full"] }
+tokio = { version = "1.1.0", features = ["full"] }
 eth2_keystore = { path = "../crypto/eth2_keystore" }
 account_utils = { path = "../common/account_utils" }
 slashing_protection = { path = "../validator_client/slashing_protection" }
 eth2 = {path = "../common/eth2"}
 safe_arith = {path = "../consensus/safe_arith"}
 slot_clock = { path = "../common/slot_clock" }
-tokio-compat-02 = "0.1"
 
 [dev-dependencies]
 tempfile = "3.1.0"

account_manager/src/validator/exit.rs

@@ -12,7 +12,6 @@ use safe_arith::SafeArith;
 use slot_clock::{SlotClock, SystemTimeSlotClock};
 use std::path::PathBuf;
 use std::time::Duration;
-use tokio_compat_02::FutureExt;
 use types::{ChainSpec, Epoch, EthSpec, Fork, VoluntaryExit};
 
 pub const CMD: &str = "exit";
@@ -77,17 +76,14 @@ pub fn cli_run<E: EthSpec>(matches: &ArgMatches, env: Environment<E>) -> Result<
         .clone()
         .expect("network should have a valid config");
 
-    env.runtime().block_on(
-        publish_voluntary_exit::<E>(
-            &keystore_path,
-            password_file_path.as_ref(),
-            &client,
-            &spec,
-            stdin_inputs,
-            &testnet_config,
-        )
-        .compat(),
-    )?;
+    env.runtime().block_on(publish_voluntary_exit::<E>(
+        &keystore_path,
+        password_file_path.as_ref(),
+        &client,
+        &spec,
+        stdin_inputs,
+        &testnet_config,
+    ))?;
 
     Ok(())
 }

beacon_node/Cargo.toml

@@ -10,7 +10,6 @@ path = "src/lib.rs"
 
 [dev-dependencies]
 node_test_rig = { path = "../testing/node_test_rig" }
-tokio-compat-02 = "0.1"
 
 [features]
 write_ssz_files = ["beacon_chain/write_ssz_files"]  # Writes debugging .ssz files to /tmp during block processing.
@@ -27,7 +26,7 @@ slog = { version = "2.5.2", features = ["max_level_trace", "release_max_level_tr
 slog-term = "2.6.0"
 slog-async = "2.5.0"
 ctrlc = { version = "3.1.6", features = ["termination"] }
-tokio = { version = "0.3.2", features = ["time"] }
+tokio = { version = "1.1.0", features = ["time"] }
 exit-future = "0.2.0"
 dirs = "3.0.1"
 logging = { path = "../common/logging" }
@@ -41,7 +40,7 @@ eth2_libp2p = { path = "./eth2_libp2p" }
 eth2_ssz = "0.1.2"
 serde = "1.0.116"
 clap_utils = { path = "../common/clap_utils" }
-hyper = "0.13.8"
+hyper = "0.14.4"
 lighthouse_version = { path = "../common/lighthouse_version" }
 hex = "0.4.2"
 slasher = { path = "../slasher" }

beacon_node/beacon_chain/Cargo.toml

@@ -40,7 +40,7 @@ eth2_ssz_derive = "0.1.0"
 state_processing = { path = "../../consensus/state_processing" }
 tree_hash = "0.1.1"
 types = { path = "../../consensus/types" }
-tokio = "0.3.2"
+tokio = "1.1.0"
 eth1 = { path = "../eth1" }
 futures = "0.3.7"
 genesis = { path = "../genesis" }

beacon_node/client/Cargo.toml

@@ -26,10 +26,10 @@ error-chain = "0.12.4"
 serde_yaml = "0.8.13"
 slog = { version = "2.5.2", features = ["max_level_trace"] }
 slog-async = "2.5.0"
-tokio = "0.3.2"
+tokio = "1.1.0"
 dirs = "3.0.1"
 futures = "0.3.7"
-reqwest = { version = "0.10.8", features = ["native-tls-vendored"] }
+reqwest = { version = "0.11.0", features = ["native-tls-vendored"] }
 url = "2.1.1"
 eth1 = { path = "../eth1" }
 genesis = { path = "../genesis" }

beacon_node/client/src/notifier.rs

@@ -1,7 +1,6 @@
 use crate::metrics;
 use beacon_chain::{BeaconChain, BeaconChainTypes};
 use eth2_libp2p::NetworkGlobals;
-use futures::prelude::*;
 use parking_lot::Mutex;
 use slog::{debug, error, info, warn, Logger};
 use slot_clock::SlotClock;
@@ -64,26 +63,32 @@ pub fn spawn_notifier<T: BeaconChainTypes>(
         }
 
         // Perform post-genesis logging.
-        while interval.next().await.is_some() {
+        loop {
+            interval.tick().await;
             let connected_peer_count = network.connected_peers();
             let sync_state = network.sync_state();
 
-            let head_info = beacon_chain.head_info().map_err(|e| {
-                error!(
-                    log,
-                    "Failed to get beacon chain head info";
-                    "error" => format!("{:?}", e)
-                )
-            })?;
+            let head_info = match beacon_chain.head_info() {
+                Ok(head_info) => head_info,
+                Err(e) => {
+                    error!(log, "Failed to get beacon chain head info"; "error" => format!("{:?}", e));
+                    break;
+                }
+            };
 
             let head_slot = head_info.slot;
-            let current_slot = beacon_chain.slot().map_err(|e| {
-                error!(
-                    log,
-                    "Unable to read current slot";
-                    "error" => format!("{:?}", e)
-                )
-            })?;
+            let current_slot = match beacon_chain.slot() {
+                Ok(slot) => slot,
+                Err(e) => {
+                    error!(
+                        log,
+                        "Unable to read current slot";
+                        "error" => format!("{:?}", e)
+                    );
+                    break;
+                }
+            };
+
             let current_epoch = current_slot.epoch(T::EthSpec::slots_per_epoch());
             let finalized_epoch = head_info.finalized_checkpoint.epoch;
             let finalized_root = head_info.finalized_checkpoint.root;
@@ -175,11 +180,10 @@ pub fn spawn_notifier<T: BeaconChainTypes>(
 
             eth1_logging(&beacon_chain, &log);
         }
-        Ok::<(), ()>(())
     };
 
     // run the notifier on the current executor
-    executor.spawn(interval_future.unwrap_or_else(|_| ()), "notifier");
+    executor.spawn(interval_future, "notifier");
 
     Ok(())
 }

beacon_node/eth1/Cargo.toml

@@ -13,7 +13,7 @@ environment = { path = "../../lighthouse/environment" }
 tokio-compat-02 = "0.1"
 
 [dependencies]
-reqwest = { version = "0.10.8", features = ["native-tls-vendored"] }
+reqwest = { version = "0.11.0", features = ["native-tls-vendored"] }
 futures = "0.3.7"
 serde_json = "1.0.58"
 serde = { version = "1.0.116", features = ["derive"] }
@@ -26,7 +26,7 @@ tree_hash = "0.1.1"
 eth2_hashing = "0.1.0"
 parking_lot = "0.11.0"
 slog = "2.5.2"
-tokio = { version = "0.3.2", features = ["full"] }
+tokio = { version = "1.1.0", features = ["full"] }
 state_processing = { path = "../../consensus/state_processing" }
 libflate = "1.0.2"
 lighthouse_metrics = { path = "../../common/lighthouse_metrics"}

beacon_node/eth1/src/service.rs

@@ -9,7 +9,7 @@ use crate::{
     inner::{DepositUpdater, Inner},
 };
 use fallback::{Fallback, FallbackError};
-use futures::{future::TryFutureExt, StreamExt};
+use futures::future::TryFutureExt;
 use parking_lot::{RwLock, RwLockReadGuard};
 use serde::{Deserialize, Serialize};
 use slog::{crit, debug, error, info, trace, warn, Logger};
@@ -721,7 +721,8 @@ impl Service {
         let mut interval = interval_at(Instant::now(), update_interval);
 
         let update_future = async move {
-            while interval.next().await.is_some() {
+            loop {
+                interval.tick().await;
                 self.do_update(update_interval).await.ok();
             }
         };

beacon_node/eth2_libp2p/Cargo.toml

@@ -5,8 +5,8 @@ authors = ["Sigma Prime <contact@sigmaprime.io>"]
 edition = "2018"
 
 [dependencies]
-discv5 = { version = "0.1.0-beta.2", features = ["libp2p"] }
-unsigned-varint = { git = "https://github.com/sigp/unsigned-varint", branch = "dep-update", features = ["codec"] }
+discv5 = { version = "0.1.0-beta.3", features = ["libp2p"] }
+unsigned-varint = { version = "0.6.0", features = ["codec"] }
 types = { path =  "../../consensus/types" }
 hashset_delay = { path = "../../common/hashset_delay" }
 eth2_ssz_types = { path =  "../../consensus/ssz_types" }
@@ -16,23 +16,24 @@ eth2_ssz = "0.1.2"
 eth2_ssz_derive = "0.1.0"
 slog = { version = "2.5.2", features = ["max_level_trace"] }
 lighthouse_version = { path = "../../common/lighthouse_version" }
-tokio = { version = "0.3.2", features = ["time", "macros"] }
+tokio = { version = "1.1.0", features = ["time", "macros"] }
 futures = "0.3.7"
+futures-io = "0.3.7"
 error-chain = "0.12.4"
 dirs = "3.0.1"
 fnv = "1.0.7"
 lazy_static = "1.4.0"
 lighthouse_metrics = { path = "../../common/lighthouse_metrics" }
 smallvec = "1.6.1"
-tokio-io-timeout = "0.5.0"
+tokio-io-timeout = "1.1.1"
 lru = "0.6.0"
 parking_lot = "0.11.0"
 sha2 = "0.9.1"
 base64 = "0.13.0"
 snap = "1.0.1"
 void = "1.0.2"
 hex = "0.4.2"
-tokio-util = { version = "0.4.0", features = ["codec", "compat", "time"] }
+tokio-util = { version = "0.6.2", features = ["codec", "compat", "time"] }
 tiny-keccak = "2.0.2"
 task_executor = { path = "../../common/task_executor" }
 rand = "0.7.3"
@@ -41,14 +42,12 @@ regex = "1.3.9"
 strum = { version = "0.20", features = ["derive"] }
 
 [dependencies.libp2p]
-#version = "0.23.0"
-git = "https://github.com/sigp/rust-libp2p"
-rev = "97000533e4710183124abde017c6c3d68287c1ae"
+version = "0.34.0"
 default-features = false
 features = ["websocket", "identify", "mplex", "yamux", "noise", "gossipsub", "dns", "tcp-tokio"]
 
 [dev-dependencies]
-tokio = { version = "0.3.2", features = ["full"] }
+tokio = { version = "1.1.0", features = ["full"] }
 slog-term = "2.6.0"
 slog-async = "2.5.0"
 tempfile = "3.1.0"

beacon_node/eth2_libp2p/src/behaviour/mod.rs

@@ -832,7 +832,7 @@ impl<TSpec: EthSpec> Behaviour<TSpec> {
         if let Some((peer_id, reason)) = self.peers_to_dc.pop_front() {
             return Poll::Ready(NBAction::NotifyHandler {
                 peer_id,
-                handler: NotifyHandler::All,
+                handler: NotifyHandler::Any,
                 event: BehaviourHandlerIn::Shutdown(
                     reason.map(|reason| (RequestId::Behaviour, RPCRequest::Goodbye(reason))),
                 ),
@@ -893,7 +893,7 @@ impl<TSpec: EthSpec> Behaviour<TSpec> {
         }
 
         // perform gossipsub score updates when necessary
-        while let Poll::Ready(Some(_)) = self.update_gossipsub_scores.poll_next_unpin(cx) {
+        while let Poll::Ready(_) = self.update_gossipsub_scores.poll_tick(cx) {
             self.peer_manager.update_gossipsub_scores(&self.gossipsub);
         }
 

beacon_node/eth2_libp2p/src/discovery/enr_ext.rs

@@ -221,8 +221,9 @@ impl CombinedKeyExt for CombinedKey {
     fn from_libp2p(key: &libp2p::core::identity::Keypair) -> Result<CombinedKey, &'static str> {
         match key {
             Keypair::Secp256k1(key) => {
-                let secret = discv5::enr::k256::ecdsa::SigningKey::new(&key.secret().to_bytes())
-                    .expect("libp2p key must be valid");
+                let secret =
+                    discv5::enr::k256::ecdsa::SigningKey::from_bytes(&key.secret().to_bytes())
+                        .expect("libp2p key must be valid");
                 Ok(CombinedKey::Secp256k1(secret))
             }
             Keypair::Ed25519(key) => {
@@ -277,7 +278,7 @@ mod tests {
     fn test_secp256k1_peer_id_conversion() {
         let sk_hex = "df94a73d528434ce2309abb19c16aedb535322797dbd59c157b1e04095900f48";
         let sk_bytes = hex::decode(sk_hex).unwrap();
-        let secret_key = discv5::enr::k256::ecdsa::SigningKey::new(&sk_bytes).unwrap();
+        let secret_key = discv5::enr::k256::ecdsa::SigningKey::from_bytes(&sk_bytes).unwrap();
 
         let libp2p_sk = libp2p::identity::secp256k1::SecretKey::from_bytes(sk_bytes).unwrap();
         let secp256k1_kp: libp2p::identity::secp256k1::Keypair = libp2p_sk.into();

beacon_node/eth2_libp2p/src/discovery/mod.rs

@@ -896,7 +896,7 @@ impl<TSpec: EthSpec> Discovery<TSpec> {
             }
             EventStream::InActive => {} // ignore checking the stream
             EventStream::Present(ref mut stream) => {
-                while let Ok(event) = stream.try_recv() {
+                while let Poll::Ready(Some(event)) = stream.poll_recv(cx) {
                     match event {
                         // We filter out unwanted discv5 events here and only propagate useful results to
                         // the peer manager.

beacon_node/eth2_libp2p/src/peer_manager/mod.rs

@@ -972,7 +972,7 @@ impl<TSpec: EthSpec> Stream for PeerManager<TSpec> {
 
     fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
         // perform the heartbeat when necessary
-        while let Poll::Ready(Some(_)) = self.heartbeat.poll_next_unpin(cx) {
+        while let Poll::Ready(_) = self.heartbeat.poll_tick(cx) {
             self.heartbeat();
         }
 
@@ -1011,8 +1011,10 @@ impl<TSpec: EthSpec> Stream for PeerManager<TSpec> {
             }
         }
 
-        if !matches!(self.network_globals.sync_state(), SyncState::SyncingFinalized{..}|SyncState::SyncingHead{..})
-        {
+        if !matches!(
+            self.network_globals.sync_state(),
+            SyncState::SyncingFinalized { .. } | SyncState::SyncingHead { .. }
+        ) {
             loop {
                 match self.status_peers.poll_next_unpin(cx) {
                     Poll::Ready(Some(Ok(peer_id))) => {

beacon_node/eth2_libp2p/src/peer_manager/peer_info.rs

@@ -156,7 +156,10 @@ impl<T: EthSpec> PeerInfo<T> {
 
     /// Checks if the status is connected.
     pub fn is_connected(&self) -> bool {
-        matches!(self.connection_status, PeerConnectionStatus::Connected { .. })
+        matches!(
+            self.connection_status,
+            PeerConnectionStatus::Connected { .. }
+        )
     }
 
     /// Checks if the status is connected.

beacon_node/eth2_libp2p/src/peer_manager/peer_sync_status.rs

@@ -29,12 +29,20 @@ pub struct SyncInfo {
 
 impl std::cmp::PartialEq for PeerSyncStatus {
     fn eq(&self, other: &Self) -> bool {
-        matches!((self, other),
-            (PeerSyncStatus::Synced { .. }, PeerSyncStatus::Synced { .. }) |
-            (PeerSyncStatus::Advanced { .. }, PeerSyncStatus::Advanced { .. }) |
-            (PeerSyncStatus::Behind { .. }, PeerSyncStatus::Behind { .. }) |
-            (PeerSyncStatus::IrrelevantPeer, PeerSyncStatus::IrrelevantPeer) |
-            (PeerSyncStatus::Unknown, PeerSyncStatus::Unknown))
+        matches!(
+            (self, other),
+            (PeerSyncStatus::Synced { .. }, PeerSyncStatus::Synced { .. })
+                | (
+                    PeerSyncStatus::Advanced { .. },
+                    PeerSyncStatus::Advanced { .. }
+                )
+                | (PeerSyncStatus::Behind { .. }, PeerSyncStatus::Behind { .. })
+                | (
+                    PeerSyncStatus::IrrelevantPeer,
+                    PeerSyncStatus::IrrelevantPeer
+                )
+                | (PeerSyncStatus::Unknown, PeerSyncStatus::Unknown)
+        )
     }
 }
 

beacon_node/eth2_libp2p/src/peer_manager/peerdb.rs

@@ -137,14 +137,20 @@ impl<TSpec: EthSpec> PeerDB<TSpec> {
 
     /// If we are connected or currently dialing the peer returns true.
     pub fn is_connected_or_dialing(&self, peer_id: &PeerId) -> bool {
-        matches!(self.connection_status(peer_id), Some(PeerConnectionStatus::Connected { .. })
-             | Some(PeerConnectionStatus::Dialing { .. }))
+        matches!(
+            self.connection_status(peer_id),
+            Some(PeerConnectionStatus::Connected { .. })
+                | Some(PeerConnectionStatus::Dialing { .. })
+        )
     }
 
     /// If we are connected or in the process of disconnecting
     pub fn is_connected_or_disconnecting(&self, peer_id: &PeerId) -> bool {
-        matches!(self.connection_status(peer_id), Some(PeerConnectionStatus::Connected { .. })
-             | Some(PeerConnectionStatus::Disconnecting { .. }))
+        matches!(
+            self.connection_status(peer_id),
+            Some(PeerConnectionStatus::Connected { .. })
+                | Some(PeerConnectionStatus::Disconnecting { .. })
+        )
     }
 
     /// Returns true if the peer is synced at least to our current head.