Fast sync companion PR (#3078)

* Fixed build

* Bumped trie-db

* update Substrate

* impl-guide: fix broken links

Co-authored-by: parity-processbot <>
Co-authored-by: Andronik Ordian <write@reusable.software>

polkadot/node/core/chain-api/src/lib.rs

@@ -394,6 +394,7 @@ mod tests {
 				finalized_hash,
 				finalized_number,
 				number_leaves: 0,
+				finalized_state: None,
 			}
 		}
 		fn number(&self, hash: Hash) -> sp_blockchain::Result<Option<BlockNumber>> {

polkadot/roadmap/implementers-guide/src/further-reading.md

@@ -1,4 +1,4 @@
 # Further Reading
 
-- Polkadot Wiki on Consensus: <https://wiki.polkadot.network/docs/en/learn-consensus>
+- Polkadot Wiki on Consensus: <https://wiki.polkadot.network/docs/learn-consensus>
 - Polkadot Spec: <https://github.com/w3f/polkadot-spec>

polkadot/roadmap/implementers-guide/src/glossary.md

@@ -42,4 +42,4 @@ exactly one downward message queue.
 
 Also of use is the [Substrate Glossary](https://substrate.dev/docs/en/knowledgebase/getting-started/glossary).
 
-[0]: https://wiki.polkadot.network/docs/en/learn-consensus
+[0]: https://wiki.polkadot.network/docs/learn-consensus