[The ". . ."s are omitted Metadata lines or other omitted blocks of text.]
(only tested on rpi2 with -mcpu=cortex-a7 in use)

kyua report --results-filter failed --results-file /usr/tests --verbose

reports for usr.bin/lastcomm:

===> usr.bin/lastcomm/legacy_test:main
Result: failed: 4 tests of 6 failed
Duration: 0.139s
. . .
Standard output:
1..6
not ok 1
not ok 2
not ok 3
not ok 4
ok 5
ok 6
 
Standard error:
cat: /usr/tests/usr.bin/lastcomm/v1-arm-acct.in: No such file or directory
cat: /usr/tests/usr.bin/lastcomm/v2-arm-acct.in: No such file or directory
cat: /usr/tests/usr.bin/lastcomm/v2-arm.out: No such file or directory
cat: /usr/tests/usr.bin/lastcomm/v1-arm.out: No such file or directory
lastcomm: could not open /usr/tests/usr.bin/lastcomm/v1-arm-acct.in: No such file or directory
diff: /usr/tests/usr.bin/lastcomm/v1-arm.out: No such file or directory
/usr/tests/usr.bin/lastcomm/legacy_test: cannot open /usr/tests/usr.bin/lastcomm/v1-arm-acct.in: No such file or directory
diff: /usr/tests/usr.bin/lastcomm/v1-arm.out: No such file or directory
lastcomm: could not open /usr/tests/usr.bin/lastcomm/v2-arm-acct.in: No such file or directory
diff: /usr/tests/usr.bin/lastcomm/v2-arm.out: No such file or directory
/usr/tests/usr.bin/lastcomm/legacy_test: cannot open /usr/tests/usr.bin/lastcomm/v2-arm-acct.in: No such file or directory
diff: /usr/tests/usr.bin/lastcomm/v2-arm.out: No such file or directory