Comparing the logs in my home project and conky subproject for tolua++, I notice that liblua5_1 is preinstalled in both cases:
33s] [57/119] preinstalled liblua5_1-5.1.4-20.1.4
But they didn’t install the same lua51-devel version. Why?
openSUSE Build Service > Projects > home: please_try_again:conky > Packages > tolua++ > Build Log (OK)
51s] [115/118] installing lua51-devel-5.1.4-20.1.4
openSUSE Build Service > Projects > home: please_try_again > Packages > tolua++ > Build Log (broken)
43s] [119/119] installing lua51-devel-5.1-17.1