From 3106d28bfa9ec50a769884f5d9529893ed98d1dc Mon Sep 17 00:00:00 2001
From: Paul Hauner <paul@paulhauner.com>
Date: Tue, 15 Jan 2019 17:42:45 +1100
Subject: [PATCH] Add Send + Sync to slot_clock

---
 beacon_chain/utils/slot_clock/src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/beacon_chain/utils/slot_clock/src/lib.rs b/beacon_chain/utils/slot_clock/src/lib.rs
index 7bdb775af..4863f7669 100644
--- a/beacon_chain/utils/slot_clock/src/lib.rs
+++ b/beacon_chain/utils/slot_clock/src/lib.rs
@@ -4,7 +4,7 @@ mod testing_slot_clock;
 pub use crate::system_time_slot_clock::{Error as SystemTimeSlotClockError, SystemTimeSlotClock};
 pub use crate::testing_slot_clock::{Error as TestingSlotClockError, TestingSlotClock};
 
-pub trait SlotClock {
+pub trait SlotClock: Send + Sync {
     type Error;
 
     fn present_slot(&self) -> Result<Option<u64>, Self::Error>;