Unexpected I/O log

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-03-20 18:17:52.048 ***
=CRASH REPORT==== 20-Mar-2024::18:17:52.048603 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.70040.0>
    registered_name: []
    exception exit: {#Ref<0.4047630195.4179886081.53213>,5037972,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.70035.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5131
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping 2024-03-20 18:17:52.049 ***
=CRASH REPORT==== 20-Mar-2024::18:17:52.048625 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.70047.0>
    registered_name: []
    exception exit: {#Ref<0.4047630195.4179886081.53213>,5037972,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.70035.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 220
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-03-20 18:18:17.539 ***
=CRASH REPORT==== 20-Mar-2024::18:18:17.538835 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.70140.0>
    registered_name: []
    exception exit: {#Ref<0.4047630195.4179886081.59533>,5104632,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.70135.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 6772
    stack_size: 28
    reductions: 5154
  neighbours:

*** System report during mod_ping_SUITE:server_ping_pong/1 in server_ping_kill 2024-03-20 18:18:17.539 ***
=CRASH REPORT==== 20-Mar-2024::18:18:17.538845 ===
  crasher:
    initial call: gen_event:init_it/6
    pid: <0.70147.0>
    registered_name: []
    exception exit: {#Ref<0.4047630195.4179886081.59533>,5104632,ok,
                     [{mod_ping_SUITE,server_ping_pong}],
                     []}
      in function  gen_event:terminate_server/4 (gen_event.erl, line 580)
    ancestors: [<0.70135.0>]
    message_queue_len: 0
    messages: []
    links: []
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 233
    stack_size: 28
    reductions: 220
  neighbours: