2026-05-31T23:48:13.516Z [ INFO] Starting package build
2026-05-31T23:48:14.642Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-bulktest.tar.gz dest=/data/chroot/12
2026-05-31T23:48:18.235Z [ INFO] Running make stage stage=pre-clean
2026-05-31T23:48:29.172Z [ INFO] Running make stage stage=checksum
2026-05-31T23:48:48.941Z [ERROR] Package build failed
2026-05-31T23:48:52.479Z [ WARN] Failed to remove directory path=/data/chroot/12/opt/pkg error=Device busy (os error 16)