Companion for paritytech/substrate#12480 (#1758)

* Companion for paritytech/substrate#12480

* update lockfile for {"substrate", "polkadot"}

Co-authored-by: parity-processbot <>

cumulus/client/relay-chain-minimal-node/src/network.rs

@@ -255,7 +255,7 @@ impl<B: BlockT> sc_network_common::sync::ChainSync<B> for DummyChainSync {
 
 	fn block_requests(
 		&mut self,
-	) -> Box<dyn Iterator<Item = (&PeerId, sc_network_common::sync::message::BlockRequest<B>)> + '_>
+	) -> Box<dyn Iterator<Item = (PeerId, sc_network_common::sync::message::BlockRequest<B>)> + '_>
 	{
 		Box::new(std::iter::empty())
 	}