adding logging

rowers/tasks.py

@@ -417,6 +417,13 @@ def add(x, y):  # pragma: no cover
 def handle_c2_sync(workoutid, url, headers, data, debug=False, **kwargs):
     response = requests.post(url, headers=headers, data=data)
     if response.status_code not in [200, 201]:  # pragma: no cover
+        s = 'C2 upload failed for user workoutid {workoutid} with response code {code} and error {text}'.format(
+            code=response.status_code,
+            workoutid = workoutid,
+            text = response.text
+            
+        )
+        dologging('c2_log.log',s)
         return 0
 
     s = response.json()