Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-22 14:50:19.070 ***
=CRASH REPORT==== 22-Apr-2024::14:50:19.070210 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.35607.0>
    registered_name: []
    exception exit: {#Ref<0.3338320462.774635521.38056>,5040106,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.35602.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5142
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-22 14:50:19.070 ***
=CRASH REPORT==== 22-Apr-2024::14:50:19.070210 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.35614.0>
    registered_name: []
    exception exit: {#Ref<0.3338320462.774635521.38056>,5040106,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.35602.0>]
    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 14:50:44.483 ***
=CRASH REPORT==== 22-Apr-2024::14:50:44.483582 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.35707.0>
    registered_name: []
    exception exit: {#Ref<0.3338320462.774635521.43872>,5043131,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.35702.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4486
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-04-22 14:50:44.484 ***
=CRASH REPORT==== 22-Apr-2024::14:50:44.483614 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.35714.0>
    registered_name: []
    exception exit: {#Ref<0.3338320462.774635521.43872>,5043131,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.35702.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: