Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-02-23 08:42:52.294 ***
=CRASH REPORT==== 23-Feb-2024::08:42:52.294321 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.35539.0>
    registered_name: []
    exception exit: {#Ref<0.2635199069.436207617.27512>,5029660,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.35534.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5176
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-02-23 08:42:52.294 ***
=CRASH REPORT==== 23-Feb-2024::08:42:52.294325 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.35546.0>
    registered_name: []
    exception exit: {#Ref<0.2635199069.436207617.27512>,5029660,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.35534.0>]
    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_kill 2024-02-23 08:43:17.641 ***
=CRASH REPORT==== 23-Feb-2024::08:43:17.641367 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.35640.0>
    registered_name: []
    exception exit: {#Ref<0.2635199069.435683330.166158>,5027100,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.35635.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4494
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-02-23 08:43:17.641 ***
=CRASH REPORT==== 23-Feb-2024::08:43:17.641407 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.35647.0>
    registered_name: []
    exception exit: {#Ref<0.2635199069.435683330.166158>,5027100,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.35635.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: