Add more info in chunk validation error (#13069)

Add more information to the error message that's printed when chunk
validation fails. Will make it easier to pinpoint which chunk producer
created the invalid chunk witness.

chain/client/src/stateless_validation/chunk_validator/mod.rs

@@ -16,6 +16,7 @@ use near_epoch_manager::shard_assignment::shard_id_to_uid;
 use near_network::types::{NetworkRequests, PeerManagerMessageRequest};
 use near_o11y::log_assert;
 use near_primitives::sharding::ShardChunkHeader;
+use near_primitives::stateless_validation::ChunkProductionKey;
 use near_primitives::stateless_validation::chunk_endorsement::ChunkEndorsement;
 use near_primitives::stateless_validation::state_witness::{
     ChunkStateWitness, ChunkStateWitnessAck, ChunkStateWitnessSize,
@@ -109,6 +110,14 @@ impl ChunkValidator {
         let last_header =
             Chain::get_prev_chunk_header(epoch_manager.as_ref(), &prev_block, shard_id)?;
 
+        let chunk_production_key = ChunkProductionKey {
+            shard_id,
+            epoch_id,
+            height_created: chunk_header.height_created(),
+        };
+        let chunk_producer_name =
+            epoch_manager.get_chunk_producer_info(&chunk_production_key)?.take_account_id();
+
         if let Ok(prev_chunk_extra) = chain.get_chunk_extra(prev_block_hash, &shard_uid) {
             match validate_chunk_with_chunk_extra(
                 chain.chain_store(),
@@ -131,6 +140,8 @@ impl ChunkValidator {
                     tracing::error!(
                         target: "client",
                         ?err,
+                        ?chunk_producer_name,
+                        ?chunk_production_key,
                         "Failed to validate chunk using existing chunk extra",
                     );
                     near_chain::stateless_validation::metrics::CHUNK_WITNESS_VALIDATION_FAILED_TOTAL
@@ -171,6 +182,8 @@ impl ChunkValidator {
                     tracing::error!(
                         target: "client",
                         ?err,
+                        ?chunk_producer_name,
+                        ?chunk_production_key,
                         "Failed to validate chunk"
                     );
                 }