fix jk knobs on the load path (#822)

Summary:
Pull Request resolved: #822

Fix JK knobs on the load path

Reviewed By: JKSenthil

Differential Revision: D57006378

fbshipit-source-id: 4834491343ba5d5743da9dacbf83c9fada88c6c1

Author: LucasLLC

torchtnt/framework/callbacks/base_checkpointer.py

@@ -356,6 +356,9 @@ def restore_from_latest(
             dirpath, metadata_fname=cls.metadata_fname, process_group=process_group
         )
         if path is None:
+            logger.info(
+                f"Attempted to restore from the following path but no checkpoint was found: {dirpath=}, {cls.metadata_fname}"
+            )
             return False
         logger.info(f"Restoring from path: {path}")
         cls.restore(