2026-06-01T09:52:25.225Z [ INFO] Starting package build
2026-06-01T09:52:25.225Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-bulktest.tar.gz dest=/data/chroot/18
2026-06-01T09:52:26.963Z [ INFO] Running make stage stage=pre-clean
2026-06-01T09:52:29.551Z [ INFO] Running make stage stage=checksum
2026-06-01T09:52:34.210Z [ERROR] Package build failed
2026-06-01T09:52:35.198Z [ WARN] Failed to remove directory path=/data/chroot/18/opt/pkg error=Device busy (os error 16)