From 8c8627705702e10189e05857fc5a453c9efe7d5b Mon Sep 17 00:00:00 2001
From: Tim Bell <timothybell@gmail.com>
Date: Mon, 27 Aug 2018 11:18:07 +1000
Subject: [PATCH] Add error message when wheel-dir not writeable; #5740

---
 src/pip/_internal/wheel.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pip/_internal/wheel.py b/src/pip/_internal/wheel.py
index 60a0f295f65..3c66f1eef7c 100644
--- a/src/pip/_internal/wheel.py
+++ b/src/pip/_internal/wheel.py
@@ -654,7 +654,7 @@ def _build_one_inside_env(self, req, output_dir, python_tag=None):
                     logger.info('Stored in directory: %s', output_dir)
                     return wheel_path
                 except Exception:
-                    pass
+                    logger.exception('Error storing in directory: %s', output_dir)
             # Ignore return, we can't do anything else useful.
             self._clean_one(req)
             return None