debugging travis: fixing timing problems

Author: zookzook

.travis.yml

@@ -34,5 +34,5 @@ env:
   matrix:
 #    - MONGODB=3.2.20
 #    - MONGODB=3.4.16
-#    - MONGODB=3.6.6
-    - MONGODB=4.0.9
+    - MONGODB=3.6.6
+#    - MONGODB=4.0.9

lib/mongo/cursor.ex

@@ -117,6 +117,8 @@ defmodule Mongo.Cursor do
           resume_token = stream_opts["startAfter"] || stream_opts["resumeAfter"]
           resume_token = update_resume_token(resume_token, response["postBatchResumeToken"], List.last(docs))
 
+          IO.puts "Token is #{inspect resume_token}"
+
           fun.(resume_token)
 
           change_stream = change_stream(resume_token: resume_token, op_time: op_time, cmd: cmd, on_resume_token: fun, topology_pid: topology_pid)