Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-18 11:05:47.702 ***
=CRASH REPORT==== 18-Apr-2024::11:05:47.702524 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.63936.0>
    registered_name: []
    exception exit: {#Ref<0.1529479957.384827393.190260>,5032889,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.63924.0>]
    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 2024-04-18 11:05:47.703 ***
=CRASH REPORT==== 18-Apr-2024::11:05:47.702524 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.63929.0>
    registered_name: []
    exception exit: {#Ref<0.1529479957.384827393.190260>,5032889,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.63924.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5193
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-04-18 11:06:13.090 ***
=CRASH REPORT==== 18-Apr-2024::11:06:13.090730 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.64029.0>
    registered_name: []
    exception exit: {#Ref<0.1529479957.384827393.195848>,5033411,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.64024.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5233
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-04-18 11:06:13.091 ***
=CRASH REPORT==== 18-Apr-2024::11:06:13.090735 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.64036.0>
    registered_name: []
    exception exit: {#Ref<0.1529479957.384827393.195848>,5033411,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.64024.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: