Make BeaconChainTypes Send + Sync + 'static

beacon_node/client/src/beacon_chain_types.rs

@@ -36,7 +36,11 @@ pub struct ClientType<S: Store, E: EthSpec> {
     _phantom_u: PhantomData<E>,
 }
 
-impl<S: Store, E: EthSpec + Clone> BeaconChainTypes for ClientType<S, E> {
+impl<S, E> BeaconChainTypes for ClientType<S, E>
+where
+    S: Store + 'static,
+    E: EthSpec + 'static + Clone,
+{
     type Store = S;
     type SlotClock = SystemTimeSlotClock;
     type LmdGhost = ThreadSafeReducedTree<S, E>;

beacon_node/client/src/lib.rs

@@ -49,7 +49,7 @@ pub struct Client<T: BeaconChainTypes> {
 
 impl<T> Client<T>
 where
-    T: BeaconChainTypes + InitialiseBeaconChain<T> + Clone + Send + Sync + 'static,
+    T: BeaconChainTypes + InitialiseBeaconChain<T> + Clone,
 {
     /// Generate an instance of the client. Spawn and link all internal sub-processes.
     pub fn new(

beacon_node/client/src/notifier.rs

@@ -17,11 +17,7 @@ pub const WARN_PEER_COUNT: usize = 1;
 /// durations.
 ///
 /// Presently unused, but remains for future use.
-pub fn run<T: BeaconChainTypes + Send + Sync + 'static>(
-    client: &Client<T>,
-    executor: TaskExecutor,
-    exit: Exit,
-) {
+pub fn run<T: BeaconChainTypes>(client: &Client<T>, executor: TaskExecutor, exit: Exit) {
     // notification heartbeat
     let interval = Interval::new(
         Instant::now(),