Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-03-20 18:20:59.146 ***
=CRASH REPORT==== 20-Mar-2024::18:20:59.146440 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.69549.0>
    registered_name: []
    exception exit: {#Ref<0.4249466763.1764753409.17432>,5087599,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.69544.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4576
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-03-20 18:20:59.146 ***
=CRASH REPORT==== 20-Mar-2024::18:20:59.146436 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.69556.0>
    registered_name: []
    exception exit: {#Ref<0.4249466763.1764753409.17432>,5087599,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.69544.0>]
    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 2024-03-20 18:21:24.645 ***
=CRASH REPORT==== 20-Mar-2024::18:21:24.645607 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.69649.0>
    registered_name: []
    exception exit: {#Ref<0.4249466763.1763966978.136725>,5052689,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.69644.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4556
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-03-20 18:21:24.645 ***
=CRASH REPORT==== 20-Mar-2024::18:21:24.645607 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.69656.0>
    registered_name: []
    exception exit: {#Ref<0.4249466763.1763966978.136725>,5052689,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.69644.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: