This is anita version 2.11
Using pexpect version 4.8.0
/usr/pkg/bin/anita \
    --workdir=/bracket/sparc64/test/2024.04.20.10.18.56/anita \
    --structured-log-file=/bracket/sparc64/test/2024.04.20.10.18.56/test.slog \
    --vmm-args= \
    --memory-size 256M \
    test \
    file:///bracket/sparc64/release/2024.04.20.10.18.56/release/images/NetBSD-10.99.10-sparc64.iso
QEMU emulator version 6.0.0
Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers
qemu path: /usr/pkg/bin/qemu-system-sparc64
qemu package: qemu-6.0.0nb2
glib2 package: glib2-2.64.1
qemu-system-sparc64 \
    -m 256 \
    -drive file=/bracket/sparc64/test/2024.04.20.10.18.56/anita/wd0.img,format=raw,media=disk,snapshot=on \
    -nographic \
    -drive file=/bracket/sparc64/test/2024.04.20.10.18.56/anita/tests-results.img,format=raw,media=disk,snapshot=off
child pid is 28794
OpenBIOS for Sparc64
Configuration device id QEMU version 1 machine id 0
kernel cmdline 
CPUs: 1 x SUNW,UltraSPARC-IIi
UUID: 00000000-0000-0000-0000-000000000000
Welcome to OpenBIOS v1.1 built on Mar 16 2021 08:16
  Type 'help' for detailed information
Trying disk:a...
Not a bootable ELF image
Not a bootable a.out image

Loading FCode image...
Loaded 7547 bytes
entry point is 0x4000
Evaluating FCode...
NetBSD IEEE 1275 Multi-FS Bootblock
Version $NetBSD: bootblk.fth,v 1.17 2022/11/17 06:40:39 chs Exp $
..buf-read-file: short read.

byte-load: exception caught!
Traceback (most recent call last):
  File "/usr/pkg/bin/anita", line 163, in <module>
    status = main()
  File "/usr/pkg/bin/anita", line 154, in main
    status = a.run_tests(timeout = options.test_timeout)
  File "/usr/pkg/lib/python3.7/site-packages/anita.py", line 2564, in run_tests
    child = self.boot(scratch_disk_args)
  File "/usr/pkg/lib/python3.7/site-packages/anita.py", line 2489, in boot
    r = self.child.expect([r'\033\[c', r'\033\[5n', r'login:'])
  File "/usr/pkg/lib/python3.7/site-packages/anita.py", line 255, in expect
    r = pexpect.spawn.expect(self, pattern, *args, **kwargs)
  File "/usr/pkg/lib/python3.7/site-packages/pexpect/spawnbase.py", line 344, in expect
    timeout, searchwindowsize, async_)
  File "/usr/pkg/lib/python3.7/site-packages/pexpect/spawnbase.py", line 372, in expect_list
    return exp.expect_loop(timeout)
  File "/usr/pkg/lib/python3.7/site-packages/pexpect/expect.py", line 181, in expect_loop
    return self.timeout(e)
  File "/usr/pkg/lib/python3.7/site-packages/pexpect/expect.py", line 144, in timeout
    raise exc
pexpect.exceptions.TIMEOUT: Timeout exceeded.
<anita.pexpect_spawn_log object at 0x76b9d15a6720>
command: /usr/pkg/bin/qemu-system-sparc64
args: ['/usr/pkg/bin/qemu-system-sparc64', '-m', '256', '-drive', 'file=/bracket/sparc64/test/2024.04.20.10.18.56/anita/wd0.img,format=raw,media=disk,snapshot=on', '-nographic', '-drive', 'file=/bracket/sparc64/test/2024.04.20.10.18.56/anita/tests-results.img,format=raw,media=disk,snapshot=off']
buffer (last 100 chars): b'17 2022/11/17 06:40:39 chs Exp $\r\r\n..buf-read-file: short read.\r\r\n\r\r\nbyte-load: exception caught!\r\r\n'
before (last 100 chars): b'17 2022/11/17 06:40:39 chs Exp $\r\r\n..buf-read-file: short read.\r\r\n\r\r\nbyte-load: exception caught!\r\r\n'
after: <class 'pexpect.exceptions.TIMEOUT'>
match: None
match_index: None
exitstatus: None
flag_eof: False
pid: 28794
child_fd: 9
closed: False
timeout: 3600
delimiter: <class 'pexpect.exceptions.EOF'>
logfile: None
logfile_read: <anita.multifile object at 0x76b9d15a67e0>
logfile_send: <anita.Logger object at 0x76b9d15a6660>
maxread: 2000
ignorecase: False
searchwindowsize: None
delaybeforesend: 0.05
delayafterclose: 30.0
delayafterterminate: 30.0
searcher: searcher_re:
    0: re.compile(b'\\033\\[c')
    1: re.compile(b'\\033\\[5n')
    2: re.compile(b'login:')
     3643.29 real      3546.20 user       170.38 sys