diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7476c20776..99636e4613 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,7 +42,7 @@ jobs:
           python -m pip install .
       - name: Run tests
         run: |
-          py.test tests/
+          py.test --show-capture=stderr tests/
       - name: Run nikola
         run: |
           nikola
diff --git a/nikola/plugins/task/galleries.py b/nikola/plugins/task/galleries.py
index 9e7b53c4ce..54d98dbe3e 100644
--- a/nikola/plugins/task/galleries.py
+++ b/nikola/plugins/task/galleries.py
@@ -33,6 +33,7 @@
 import mimetypes
 import os
 import pathlib
+import sys
 from collections import OrderedDict
 from urllib.parse import urljoin
 
@@ -758,7 +759,13 @@ def forward_slashes(path):
                     mimetypes.guess_type(img)[0]
                 ),
             }
-            items.append(rss.RSSItem(**args))
+            print(f'{args=}', file=sys.stderr)
+            print(f'guid={vars(args["guid"])}', file=sys.stderr)
+            print(f'enclosure={vars(args["enclosure"])}', file=sys.stderr)
+            item = rss.RSSItem(**args)
+            print(f'item={vars(item)}', file=sys.stderr)
+            print('', file=sys.stderr)
+            items.append(item)
         rss_obj = rss.RSS2(
             title=title,
             link=make_url(permalink),