2026-06-10T19:44:58.744Z [ INFO] Starting package build
2026-06-10T19:44:58.744Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-trunk.tar.gz dest=/data/chroot/18
2026-06-10T19:45:14.649Z [ERROR] Package build failed
2026-06-10T19:45:15.647Z [ WARN] Failed to remove directory path=/data/chroot/18/opt/pkg error=Device busy (os error 16)