2026-06-11T05:51:03.093Z [ INFO] Starting package build
2026-06-11T05:51:03.094Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-trunk.tar.gz dest=/data/chroot/4
2026-06-11T05:51:08.802Z [ERROR] Package build failed
2026-06-11T05:51:09.091Z [ WARN] Failed to remove directory path=/data/chroot/4/opt/pkg error=Device busy (os error 16)