Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-25 16:24:35.586 ***
=CRASH REPORT==== 25-Apr-2024::16:24:35.586713 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2867.1>
    registered_name: []
    exception exit: {#Ref<0.996629141.3873964034.4565>,5032639,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2855.1>]
    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 2024-04-25 16:24:35.587 ***
=CRASH REPORT==== 25-Apr-2024::16:24:35.586715 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2860.1>
    registered_name: []
    exception exit: {#Ref<0.996629141.3873964034.4565>,5032639,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2855.1>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4612
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-04-25 16:25:00.951 ***
=CRASH REPORT==== 25-Apr-2024::16:25:00.950947 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2960.1>
    registered_name: []
    exception exit: {#Ref<0.996629141.3873701891.76703>,5031420,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2955.1>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4633
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-04-25 16:25:00.951 ***
=CRASH REPORT==== 25-Apr-2024::16:25:00.950955 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2967.1>
    registered_name: []
    exception exit: {#Ref<0.996629141.3873701891.76703>,5031420,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2955.1>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: