This is anita version 1.49
Using pexpect version 4.6.0
/usr/pkg/bin/anita \
    --workdir=/bracket/evbarm-aarch64/test/2019.12.09.21.08.56/anita \
    --structured-log-file=/bracket/evbarm-aarch64/test/2019.12.09.21.08.56/install.slog \
    --vmm-args= \
    --test-timeout \
    120000 \
    install \
    file:///bracket/evbarm-aarch64/test/2019.12.09.21.08.56/release/evbarm-aarch64/
Downloading file:///bracket/evbarm-aarch64/test/2019.12.09.21.08.56/release/evbarm-aarch64/binary/gzimg/arm64.img.gz... OK
Downloading file:///bracket/evbarm-aarch64/test/2019.12.09.21.08.56/release/evbarm-aarch64/binary/kernel/netbsd-GENERIC64.img.gz... OK
Creating hard disk image...1831808+0 records in
1831808+0 records out
937885696 bytes transferred in 24.841 secs (37755553 bytes/sec)
QEMU emulator version 4.1.0
Copyright (c) 2003-2019 Fabrice Bellard and the QEMU Project developers
 done.
reversing virtio devices
qemu-system-aarch64 \
    -m \
    512 \
    -drive \
    file=/bracket/evbarm-aarch64/test/2019.12.09.21.08.56/anita/wd0.img,format=raw,media=disk,snapshot=off,if=none,id=hd0 \
    -device \
    virtio-blk-device,drive=hd0 \
    -nographic \
    -M \
    virt \
    -cpu \
    cortex-a57 \
    -kernel \
    /bracket/evbarm-aarch64/test/2019.12.09.21.08.56/anita/netbsd-GENERIC64.img \
    -append \
    root=ld4a
child pid is 3689
[   1.0000000] NetBSD/evbarm (fdt) booting ...
Traceback (most recent call last):
  File "/usr/pkg/bin/anita", line 144, in <module>
    status = main()
  File "/usr/pkg/bin/anita", line 125, in main
    a.install()
  File "/usr/pkg/lib/python2.7/site-packages/anita.py", line 1893, in install
    self._install()
  File "/usr/pkg/lib/python2.7/site-packages/anita.py", line 1146, in _install
    self._install_from_image()
  File "/usr/pkg/lib/python2.7/site-packages/anita.py", line 1176, in _install_from_image
    self.child.expect("login:")
  File "/usr/pkg/lib/python2.7/site-packages/anita.py", line 181, in expect
    r = pexpect.spawn.expect(self, pattern, *args, **kwargs)
  File "/usr/pkg/lib/python2.7/site-packages/pexpect/spawnbase.py", line 341, in expect
    timeout, searchwindowsize, async_)
  File "/usr/pkg/lib/python2.7/site-packages/pexpect/spawnbase.py", line 369, in expect_list
    return exp.expect_loop(timeout)
  File "/usr/pkg/lib/python2.7/site-packages/pexpect/expect.py", line 119, in expect_loop
    return self.timeout(e)
  File "/usr/pkg/lib/python2.7/site-packages/pexpect/expect.py", line 82, in timeout
    raise TIMEOUT(msg)
pexpect.exceptions.TIMEOUT: Timeout exceeded.
<anita.pexpect_spawn_log object at 0x775b2b46fdd0>
command: /usr/pkg/bin/qemu-system-aarch64
args: ['/usr/pkg/bin/qemu-system-aarch64', '-m', '512', '-drive', 'file=/bracket/evbarm-aarch64/test/2019.12.09.21.08.56/anita/wd0.img,format=raw,media=disk,snapshot=off,if=none,id=hd0', '-device', 'virtio-blk-device,drive=hd0', '-nographic', '-M', 'virt', '-cpu', 'cortex-a57', '-kernel', '/bracket/evbarm-aarch64/test/2019.12.09.21.08.56/anita/netbsd-GENERIC64.img', '-append', 'root=ld4a']
buffer (last 100 chars): '[   1.0000000] NetBSD/evbarm (fdt) booting ...\r\r\n'
before (last 100 chars): '[   1.0000000] NetBSD/evbarm (fdt) booting ...\r\r\n'
after: <class 'pexpect.exceptions.TIMEOUT'>
match: None
match_index: None
exitstatus: None
flag_eof: False
pid: 3689
child_fd: 12
closed: False
timeout: 3600
delimiter: <class 'pexpect.exceptions.EOF'>
logfile: None
logfile_read: <anita.multifile object at 0x775b2b46fe90>
logfile_send: <open file '/bracket/evbarm-aarch64/test/2019.12.09.21.08.56/install.slog', mode 'w' at 0x775b2b4e89c0>
maxread: 2000
ignorecase: False
searchwindowsize: None
delaybeforesend: 0.05
delayafterclose: 30.0
delayafterterminate: 30.0
searcher: searcher_re:
    0: re.compile('login:')
     3670.24 real      2476.05 user      1076.40 sys