2026-06-01T13:40:25.882Z [ INFO] Starting package build
2026-06-01T13:40:25.882Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-bulktest.tar.gz dest=/data/chroot/6
2026-06-01T13:40:26.640Z [ INFO] Running make stage stage=pre-clean
2026-06-01T13:40:36.145Z [ INFO] Running make stage stage=checksum
2026-06-01T13:40:37.165Z [ERROR] Package build failed
2026-06-01T13:40:40.413Z [ WARN] Failed to remove directory path=/data/chroot/6/opt/pkg error=Device busy (os error 16)