Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-22 14:53:36.504 ***
=CRASH REPORT==== 22-Apr-2024::14:53:36.504193 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.71029.0>
    registered_name: []
    exception exit: {#Ref<0.3192750567.2117599233.164027>,5047792,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.71024.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5063
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-22 14:53:36.504 ***
=CRASH REPORT==== 22-Apr-2024::14:53:36.504194 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.71037.0>
    registered_name: []
    exception exit: {#Ref<0.3192750567.2117599233.164027>,5047792,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.71024.0>]
    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 2024-04-22 14:54:01.946 ***
=CRASH REPORT==== 22-Apr-2024::14:54:01.946002 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.71130.0>
    registered_name: []
    exception exit: {#Ref<0.3192750567.2117074946.49414>,5045702,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.71125.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5128
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-04-22 14:54:01.946 ***
=CRASH REPORT==== 22-Apr-2024::14:54:01.946022 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.71137.0>
    registered_name: []
    exception exit: {#Ref<0.3192750567.2117074946.49414>,5045702,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.71125.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: