I buildworld / installworld a few times per week. I don't think I've ever seen these messages before: make[1]: "/usr/obj/usr/src/compiler-metadata.mk" line 1: Using cached compiler metadata from build at cow.example.com on Sun May 7 09:13:52 CDT 2017 make[3]: "/usr/obj/usr/src/compiler-metadata.mk" line 1: Using cached compiler metadata from build at cow.example.com on Sun May 7 09:13:52 CDT 2017 Possibly due to a significant enough deley between the run of buildworld and installworld? Build and install were otherwise successful. This happened when transitioning between 317440-stable -> 317906-stable Dan