diff --git a/subcmds/sync.py b/subcmds/sync.py
index a0a68960..b50df099 100644
--- a/subcmds/sync.py
+++ b/subcmds/sync.py
@@ -292,7 +292,9 @@ later is required to fix a server side protocol bug.
         pm.update()
       except _FetchError:
         err_event.set()
-      except:
+      except Exception as e:
+        print('error: Cannot fetch %s (%s: %s)' \
+            % (project.name, type(e).__name__, str(e)), file=sys.stderr)
         err_event.set()
         raise
     finally: