iocaml log file: 29/1/2020 11:03:39
open and bind socket tcp://127.0.0.1:34723
open and bind socket tcp://127.0.0.1:34821
open and bind socket tcp://127.0.0.1:47321
open and bind socket tcp://127.0.0.1:47463
open and bind socket tcp://127.0.0.1:46431
 羺鄬
<IDS|MSG>
  HMAC: 217f8a89585beca65dcd947502657d8cf483ec32b1a810f721252f44a3ef4b28
  header: {"date":"2020-01-29T10:03:39.404842Z","username":"lilian","session":"6533a4739e72415697dd252acd6cfe81","msg_id":"fbb48dce-66c0ebb01d059a150806eb82","msg_type":"kernel_info_request"}
  parent: {}
  content: {}
SEND
 羺鄬
<IDS|MSG>
  HMAC: 217f8a89585beca65dcd947502657d8cf483ec32b1a810f721252f44a3ef4b28
  header: {"date":"2020-01-29T10:03:39.404842Z","username":"lilian","session":"6533a4739e72415697dd252acd6cfe81","msg_id":"f7bb9eee-19f5-4d18-a3bb-dd14bd4e45c3","msg_type":"kernel_info_reply"}
  parent: {"date":"2020-01-29T10:03:39.404842Z","username":"lilian","session":"6533a4739e72415697dd252acd6cfe81","msg_id":"fbb48dce-66c0ebb01d059a150806eb82","msg_type":"kernel_info_request"}
  content: {"protocol_version":[3,2],"language_version":[4,1,0],"language":"ocaml"}
6533a4739e72415697dd252acd6cfe81
<IDS|MSG>
  HMAC: 83ea9688be107306452291220c4852c998eac726b53339314ddf7c55088a0be5
  header: {"username":"username","session":"6533a4739e72415697dd252acd6cfe81","msg_id":"6a0b8cdee47342bb86d68e82663e799c","msg_type":"kernel_info_request"}
  parent: {}
  content: {}
SEND
6533a4739e72415697dd252acd6cfe81
<IDS|MSG>
  HMAC: 83ea9688be107306452291220c4852c998eac726b53339314ddf7c55088a0be5
  header: {"username":"username","session":"6533a4739e72415697dd252acd6cfe81","msg_id":"4fd766bd-9efa-4a71-8909-d01ec16f3d82","msg_type":"kernel_info_reply"}
  parent: {"username":"username","session":"6533a4739e72415697dd252acd6cfe81","msg_id":"6a0b8cdee47342bb86d68e82663e799c","msg_type":"kernel_info_request"}
  content: {"protocol_version":[3,2],"language_version":[4,1,0],"language":"ocaml"}
Exception: Failure("content_of_json: comm_info_request")
Dying.