random_test unit test failed on Ubuntu 16.04
random_test
unit test from BIND 9.15.6 failed on Ubuntu 16.04 with:
bind/lib/isc/tests/random_test .........
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/16 subtests
...
Test Summary Report
-------------------
bind/lib/isc/tests/random_test (Wstat: 256 Tests: 16 Failed: 1)
Failed test: 15
Non-zero exit status: 1
Files=68, Tests=299, 177.621 wallclock secs ( 0.26 usr 0.08 sys + 137.80 cusr 4.99 csys = 143.13 CPU)
Result: FAIL
It passed on Ubuntu 18.04.