Catch parse exceptions

updates_notifier/fetchers/atom_rss_fetcher.py

@@ -35,14 +35,16 @@ class AtomRSSFetcher(ProjectFetcher):
 
         entries: List[Entry] = []
 
-        root = ET.fromstring(req.content)
+        try:
+            root = ET.fromstring(req.content)
+            for entry in root.findall(_ATOM_ENTRY):
+                tag_id = entry.findtext(_ATOM_TAG_ID)
+                version = entry.findtext(_ATOM_TAG_VERSION)
+                url = entry.find(_ATOM_TAG_URL)
 
-        ET.fromstring(req.content)
-        for entry in root.findall(_ATOM_ENTRY):
-            tag_id = entry.findtext(_ATOM_TAG_ID)
-            version = entry.findtext(_ATOM_TAG_VERSION)
-            url = entry.find(_ATOM_TAG_URL)
+                entries.append(Entry(self.feed_id, tag_id, self.name, version, url))
 
-            entries.append(Entry(self.feed_id, tag_id, self.name, version, url))
+        except ET.ParseError as err:
+            logger.error("Failed to parse XML for %s: %s", self.name, str(err))
 
         return entries