Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-24 13:18:40.958 ***
=CRASH REPORT==== 24-Apr-2024::13:18:40.958543 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.69339.0>
    registered_name: []
    exception exit: {#Ref<0.1715081668.938475521.195672>,5037587,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.69334.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5111
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-24 13:18:40.959 ***
=CRASH REPORT==== 24-Apr-2024::13:18:40.958544 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.69346.0>
    registered_name: []
    exception exit: {#Ref<0.1715081668.938475521.195672>,5037587,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.69334.0>]
    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 2024-04-24 13:19:06.376 ***
=CRASH REPORT==== 24-Apr-2024::13:19:06.376152 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.69439.0>
    registered_name: []
    exception exit: {#Ref<0.1715081668.938475521.200283>,5035915,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.69434.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4541
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-04-24 13:19:06.376 ***
=CRASH REPORT==== 24-Apr-2024::13:19:06.376188 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.69446.0>
    registered_name: []
    exception exit: {#Ref<0.1715081668.938475521.200283>,5035915,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.69434.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: