Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-23 06:58:29.684 ***
=CRASH REPORT==== 23-Apr-2024::06:58:29.684505 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.70847.0>
    registered_name: []
    exception exit: {#Ref<0.2710091058.656932865.174371>,5028106,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.70835.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-23 06:58:29.684 ***
=CRASH REPORT==== 23-Apr-2024::06:58:29.684509 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.70840.0>
    registered_name: []
    exception exit: {#Ref<0.2710091058.656932865.174371>,5028106,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.70835.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4552
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-04-23 06:58:55.059 ***
=CRASH REPORT==== 23-Apr-2024::06:58:55.059322 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.70940.0>
    registered_name: []
    exception exit: {#Ref<0.2710091058.656408578.213306>,5026307,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.70935.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 6268
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-04-23 06:58:55.059 ***
=CRASH REPORT==== 23-Apr-2024::06:58:55.059325 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.70947.0>
    registered_name: []
    exception exit: {#Ref<0.2710091058.656408578.213306>,5026307,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.70935.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: