2026-05-05T14:38:40.124Z [ INFO] Starting package build
2026-05-05T14:38:40.124Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-bulktest.tar.gz dest=/data/chroot/0
2026-05-05T14:38:40.473Z [ INFO] Running make stage stage=pre-clean
2026-05-05T14:38:41.170Z [ INFO] Running make stage stage=checksum
2026-05-05T14:38:41.599Z [ERROR] Package build failed
2026-05-05T14:38:41.936Z [ WARN] Failed to remove directory path=/data/chroot/0/opt/pkg error=Device busy (os error 16)