Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-03-11 09:05:26.144 ***
=CRASH REPORT==== 11-Mar-2024::09:05:26.144157 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.60721.0>
    registered_name: []
    exception exit: {#Ref<0.2986515066.1280311297.13864>,5052936,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.60716.0>]
    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 2024-03-11 09:05:26.144 ***
=CRASH REPORT==== 11-Mar-2024::09:05:26.144164 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.60728.0>
    registered_name: []
    exception exit: {#Ref<0.2986515066.1280311297.13864>,5052936,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.60716.0>]
    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 2024-03-11 09:05:51.539 ***
=CRASH REPORT==== 11-Mar-2024::09:05:51.539297 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.60821.0>
    registered_name: []
    exception exit: {#Ref<0.2986515066.1280311297.18984>,5035021,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.60816.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4560
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-03-11 09:05:51.540 ***
=CRASH REPORT==== 11-Mar-2024::09:05:51.539319 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.60828.0>
    registered_name: []
    exception exit: {#Ref<0.2986515066.1280311297.18984>,5035021,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.60816.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: