impl hash correctly for the blob wrapper

beacon_node/beacon_chain/src/beacon_chain.rs

@@ -2944,7 +2944,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
         ops.push(StoreOp::PutBlock(block_root, signed_block.clone()));
         ops.push(StoreOp::PutState(block.state_root(), &state));
 
-        if let Some(blobs) = blobs {
+        if let Some(blobs) = blobs? {
             //FIXME(sean) using this for debugging for now
             info!(self.log, "Writing blobs to store"; "block_root" => ?block_root);
             ops.push(StoreOp::PutBlobs(block_root, blobs));

beacon_node/beacon_chain/src/early_attester_cache.rs

@@ -77,7 +77,7 @@ impl<E: EthSpec> EarlyAttesterCache<E> {
             source,
             target,
             block,
-            blobs,
+            blobs: blobs?,
             proto_block,
         };