Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-25 14:42:19.213 ***
=CRASH REPORT==== 25-Apr-2024::14:42:19.212752 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.62661.0>
    registered_name: []
    exception exit: {#Ref<0.3328007919.4127981569.65866>,5041551,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.62656.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5200
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-04-25 14:42:19.213 ***
=CRASH REPORT==== 25-Apr-2024::14:42:19.212758 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.62668.0>
    registered_name: []
    exception exit: {#Ref<0.3328007919.4127981569.65866>,5041551,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.62656.0>]
    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 2024-04-25 14:42:44.628 ***
=CRASH REPORT==== 25-Apr-2024::14:42:44.628070 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.62769.0>
    registered_name: []
    exception exit: {#Ref<0.3328007919.4127981569.70787>,5037095,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.62757.0>]
    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 2024-04-25 14:42:44.628 ***
=CRASH REPORT==== 25-Apr-2024::14:42:44.628070 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.62762.0>
    registered_name: []
    exception exit: {#Ref<0.3328007919.4127981569.70787>,5037095,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 592)
    ancestors: [<0.62757.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5177
  neighbours: