Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2023-11-16 09:44:44.173 ***
=CRASH REPORT==== 16-Nov-2023::09:44:44.173546 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.65698.0>
    registered_name: []
    exception exit: {#Ref<0.3284378881.95158273.63935>,5035655,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.65693.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5211
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2023-11-16 09:44:44.173 ***
=CRASH REPORT==== 16-Nov-2023::09:44:44.173580 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.65705.0>
    registered_name: []
    exception exit: {#Ref<0.3284378881.95158273.63935>,5035655,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.65693.0>]
    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 2023-11-16 09:45:09.569 ***
=CRASH REPORT==== 16-Nov-2023::09:45:09.569746 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.65798.0>
    registered_name: []
    exception exit: {#Ref<0.3284378881.95158273.68985>,5034666,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.65793.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4560
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2023-11-16 09:45:09.570 ***
=CRASH REPORT==== 16-Nov-2023::09:45:09.569788 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.65805.0>
    registered_name: []
    exception exit: {#Ref<0.3284378881.95158273.68985>,5034666,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.65793.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: