Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-03-20 18:17:22.731 ***
=CRASH REPORT==== 20-Mar-2024::18:17:22.731695 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2524.1>
    registered_name: []
    exception exit: {#Ref<0.2073458807.2031878145.191508>,5035461,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2519.1>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4612
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-03-20 18:17:22.732 ***
=CRASH REPORT==== 20-Mar-2024::18:17:22.731736 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2531.1>
    registered_name: []
    exception exit: {#Ref<0.2073458807.2031878145.191508>,5035461,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2519.1>]
    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 18:17:48.115 ***
=CRASH REPORT==== 20-Mar-2024::18:17:48.114941 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2625.1>
    registered_name: []
    exception exit: {#Ref<0.2073458807.2031878145.198055>,5031802,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2620.1>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4613
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-03-20 18:17:48.115 ***
=CRASH REPORT==== 20-Mar-2024::18:17:48.114955 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2632.1>
    registered_name: []
    exception exit: {#Ref<0.2073458807.2031878145.198055>,5031802,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2620.1>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: