Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-02-22 12:51:11.573 ***
=CRASH REPORT==== 22-Feb-2024::12:51:11.572860 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.67656.0>
    registered_name: []
    exception exit: {#Ref<0.2395113644.2398093313.107997>,5049346,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.67651.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5179
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-02-22 12:51:11.573 ***
=CRASH REPORT==== 22-Feb-2024::12:51:11.572867 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.67663.0>
    registered_name: []
    exception exit: {#Ref<0.2395113644.2398093313.107997>,5049346,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.67651.0>]
    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 2024-02-22 12:51:37.803 ***
=CRASH REPORT==== 22-Feb-2024::12:51:37.802853 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.67756.0>
    registered_name: []
    exception exit: {#Ref<0.2395113644.2398093313.113788>,5161418,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.67751.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5203
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-02-22 12:51:37.803 ***
=CRASH REPORT==== 22-Feb-2024::12:51:37.802900 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.67763.0>
    registered_name: []
    exception exit: {#Ref<0.2395113644.2398093313.113788>,5161418,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.67751.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: