Thanks dbart.
on test failures I looked at in build #5
seems like a flakey test that assumed a float rounding a different way.:
main.select/select_jcl6/select_pkeycache
rounding difference on floating numbers - not significant:
main.sp float
main.derived_cond_pushdown
main.type_float
(looks like I lost track of MDEV-14531)
innodb.temporary_table_optimization might just be assuming 2.2 > 2.2.
galera test failures look more serious.
Builder VMs created and builder added to buildbot:
Like all new builders, I'll need to monitor its first several builds to make sure it is working properly, making adjustments as needed.