failing tests

With opendkim-2.4.0, make check fails for me for the following two
tests:

[...]
PASS: t-sign-rs-multiple
*** relaxed/simple signing test using KeyTable/SetupPolicyScript
miltertest: read(3): returned 0, expected 5
miltertest: ./t-sign-rs-mixconf.lua: [string
"./t-sign-rs-mixconf.lua"]:86: mt.eom() failed
miltertest: filter process died with signal 11
FAIL: t-sign-rs-mixconf
*** relaxed/simple signing test using tables and Lua
miltertest: read(3): returned 0, expected 5
miltertest: ./t-sign-rs-lua.lua: [string "./t-sign-rs-lua.lua"]:85:
mt.eom() failed
miltertest: filter process died with signal 11
FAIL: t-sign-rs-lua
*** simple/simple signing test with 'Domain *'
PASS: t-sign-ss-all
*** simple/simple verify revoked key
[...]

Turning on the verbose flag yields the following. Any idea what is
going wrong? Thank you.

$ ../../miltertest/miltertest -vv -s ./t-sign-rs-mixconf.lua
*** relaxed/simple signing test using KeyTable/SetupPolicyScript
miltertest:
'/var/tmp/portage/mail-filter/opendkim-2.4.0/work/opendkim-2.4.0/opendkim/tests/../opendkim'
started in process 14443
miltertest: connect(): Connection refused; 39 tries left
miltertest: connected to
'unix:/var/tmp/portage/mail-filter/opendkim-2.4.0/work/opendkim-2.4.0/opendkim/tests/t-sign-rs-mixconf.sock',
fd 3
miltertest: mt_milter_write(3): cmd O, len 12
miltertest: mt_milter_read(3): cmd O, len 12
miltertest: mt_milter_write(3): cmd C, len 23
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: connection details sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd D, len 21
miltertest: 1 'M' macro(s) sent on fd 3
miltertest: mt_milter_write(3): cmd M, len 17
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: MAIL sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd R, len 24
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: mt_milter_write(3): cmd L, len 23
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: header sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd L, len 38
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: header sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd L, len 22
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: header sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd N, len 0
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: EOH sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd B, len 17
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: 17 byte(s) of body sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd E, len 0
miltertest: read(3): returned 0, expected 5
miltertest: ./t-sign-rs-mixconf.lua: [string
"./t-sign-rs-mixconf.lua"]:86: mt.eom() failed
miltertest: waiting for process 14443
miltertest: filter process died with signal 11

and similarly:
$ ../../miltertest/miltertest -vv -s ./t-sign-rs-lua.lua
*** relaxed/simple signing test using tables and Lua
miltertest:
'/var/tmp/portage/mail-filter/opendkim-2.4.0/work/opendkim-2.4.0/opendkim/tests/../opendkim'
started in process 14494
miltertest: connect(): Connection refused; 39 tries left
miltertest: connected to
'unix:/var/tmp/portage/mail-filter/opendkim-2.4.0/work/opendkim-2.4.0/opendkim/tests/t-sign-rs-lua.sock',
fd 3
miltertest: mt_milter_write(3): cmd O, len 12
miltertest: mt_milter_read(3): cmd O, len 12
miltertest: mt_milter_write(3): cmd C, len 23
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: connection details sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd D, len 17
miltertest: 1 'M' macro(s) sent on fd 3
miltertest: mt_milter_write(3): cmd M, len 17
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: MAIL sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd R, len 24
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: mt_milter_write(3): cmd L, len 23
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: header sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd L, len 38
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: header sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd L, len 22
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: header sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd N, len 0
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: EOH sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd B, len 17
miltertest: mt_milter_read(3): cmd c, len 0
miltertest: 17 byte(s) of body sent on fd 3, reply 'c'
miltertest: mt_milter_write(3): cmd E, len 0
miltertest: read(3): returned 0, expected 5
miltertest: ./t-sign-rs-lua.lua: [string "./t-sign-rs-lua.lua"]:85:
mt.eom() failed
miltertest: waiting for process 14494
miltertest: filter process died with signal 11

-- 
Eray