2026-06-10T20:20:27.429Z [ INFO] Starting package build
2026-06-10T20:20:27.429Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-trunk.tar.gz dest=/data/chroot/4
2026-06-10T20:20:35.127Z [ERROR] Package build failed
2026-06-10T20:20:35.538Z [ WARN] Failed to remove directory path=/data/chroot/4/opt/pkg error=Device busy (os error 16)