Use Logger.error to print original error while handling action return…

…ed by callback. Improve formatting.

lib/membrane/core/callback_handler.ex

@@ -185,7 +185,7 @@ defmodule Membrane.Core.CallbackHandler do
           Error handling actions returned by callback #{inspect(state.module)}.#{callback}
           """)
 
-          log_debug_orginal_error(actions, e, __STACKTRACE__)
+          log_error_orginal_error(actions, e, __STACKTRACE__)
 
           reraise e, __STACKTRACE__
       end
@@ -197,10 +197,11 @@ defmodule Membrane.Core.CallbackHandler do
         rescue
           e ->
             Membrane.Logger.error("""
-            Error handling action #{inspect(action)} returned by callback #{inspect(state.module)}.#{callback}
+            Error handling action returned by callback #{inspect(state.module)}.#{callback}.
+            Action: #{inspect(action, pretty: true)}
             """)
 
-            log_debug_orginal_error(action, e, __STACKTRACE__)
+            log_error_orginal_error(action, e, __STACKTRACE__)
 
             reraise e, __STACKTRACE__
         end
@@ -212,15 +213,12 @@ defmodule Membrane.Core.CallbackHandler do
   # We log it, because sometimes, for some reason, crashing process doesn't cause
   # printing error logs on stderr, so this debug log allows us to get some info
   # about what happened in case of process crash
-  defp log_debug_orginal_error(action_or_actions, error, stacktrace) do
+  defp log_error_orginal_error(action_or_actions, error, stacktrace) do
     action_or_actions =
       if(is_list(action_or_actions), do: "actions ", else: "action ") <>
         inspect(action_or_actions, limit: :infinity)
 
-    Membrane.Logger.debug("""
-    Error while handling #{action_or_actions}
-
-    Orginal error:
+    Membrane.Logger.error("""
     #{inspect(error, pretty: true, limit: :infinity)}
     #{Exception.format_stacktrace(stacktrace)}
     """)