Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2023-11-13 20:10:43.548 ***
=CRASH REPORT==== 13-Nov-2023::20:10:43.548433 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2641.1>
    registered_name: []
    exception exit: {#Ref<0.170504076.1401159682.8451>,5091945,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2629.1>]
    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 2023-11-13 20:10:43.549 ***
=CRASH REPORT==== 13-Nov-2023::20:10:43.548482 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2634.1>
    registered_name: []
    exception exit: {#Ref<0.170504076.1401159682.8451>,5091945,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2629.1>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4605
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2023-11-13 20:11:09.099 ***
=CRASH REPORT==== 13-Nov-2023::20:11:09.099045 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2734.1>
    registered_name: []
    exception exit: {#Ref<0.170504076.1401159682.11905>,5051029,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2729.1>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 10958
    stack_size: 28
    reductions: 4624
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2023-11-13 20:11:09.099 ***
=CRASH REPORT==== 13-Nov-2023::20:11:09.099085 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.2741.1>
    registered_name: []
    exception exit: {#Ref<0.170504076.1401159682.11905>,5051029,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.2729.1>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 210
  neighbours: