f fix compile

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -3510,7 +3510,7 @@ where
 											htlcs.push(claimable_htlc);
 											let amount_msat = htlcs.iter().map(|htlc| htlc.value).sum();
 											htlcs.iter_mut().for_each(|htlc| htlc.total_value_received = Some(amount_msat));
-											new_events.push((events::Event::PaymentClaimable {
+											new_events.push_back((events::Event::PaymentClaimable {
 												receiver_node_id: Some(receiver_node_id),
 												payment_hash,
 												purpose: purpose(),