2026-04-28T21:43:14.744Z [ INFO] Starting package build
2026-04-28T21:43:14.745Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-bulktest.tar.gz dest=/data/chroot/16
2026-04-28T21:43:16.850Z [ INFO] Running make stage stage=pre-clean
2026-04-28T21:43:18.157Z [ INFO] Running make stage stage=checksum
2026-04-28T21:43:35.691Z [ERROR] Package build failed
2026-04-28T21:43:36.324Z [ WARN] Failed to remove directory path=/data/chroot/16/opt/pkg error=Device busy (os error 16)