===== 7.3.28 (2021-04-29)

$ grep -r 'Tests failed' /var/lib/mock/{fc,el}*/build.log

/var/lib/mock/el7x/build.log:Tests failed    :     0
/var/lib/mock/el8x73/build.log:Tests failed  :    13


el8x:
	2	buildroot issue with strict openssl policy (fixed in 7.4)


1	proc_open give erratic test results :(
2	test issue
3	known issue
4	bugs related to tzdata
5	need investigation
6	https://bugzilla.redhat.com/1734468