log json errors when loading deposits

beacon_chain/spec/beaconstate.nim

@@ -238,7 +238,7 @@ func initialize_beacon_state_from_eth1*(
   for i, deposit in deposits:
     let deposit_data_list = leaves[0..i]
     state.eth1_data.deposit_root = hash_tree_root(
-      sszList(deposit_data_list, int64(2^DEPOSIT_CONTRACT_TREE_DEPTH)))
+      sszList(deposit_data_list, 2'i64^DEPOSIT_CONTRACT_TREE_DEPTH))
 
     discard process_deposit(state, deposit, flags)
 

beacon_chain/validator_keygen.nim

@@ -1,6 +1,7 @@
 import
   os, ospaths, strutils, strformat,
-  chronicles, chronos, blscurve, nimcrypto, json_serialization, web3, stint,
+  chronicles, chronos, blscurve, nimcrypto, json_serialization, serialization,
+  web3, stint,
   spec/[datatypes, digest, crypto], conf, time, ssz, interop
 
 contract(DepositContract):
@@ -30,7 +31,8 @@ proc generateDeposits*(
       try:
         result.add Json.loadFile(depositFn, Deposit)
         continue
-      except: # CatchableError?
+      except SerializationError as err:
+        debug "Rewriting unreadable deposit", err = err.formatMsg(depositFn)
         discard
 
     let

interop/README.md

@@ -11,7 +11,7 @@ git clone https://github.com/status-im/nim-beacon-chain.git
 cd nim-beacon-chain
 
 make # prepare build system (cloning the correct submodules)
-make update deps # build dependencies
+make update # build dependencies
 ```
 
 ## Running