:0: Unknown function 'Elixir.ExUnit.Callbacks':'__merge__'/3
:0: Unknown function 'Elixir.ExUnit.CaseTemplate':'__proxy__'/2
:0: Unknown type 'Elixir.Map':t/0
apps/explorer/lib/explorer/indexer/block_fetcher.ex:239: The created fun has no local return
apps/explorer/lib/explorer/indexer/block_fetcher.ex:246: The created fun has no local return