2026-06-11T00:26:48.856Z [ INFO] Starting package build
2026-06-11T00:26:48.856Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-trunk.tar.gz dest=/data/chroot/4
2026-06-11T00:27:21.170Z [ERROR] Package build failed
2026-06-11T00:27:22.129Z [ WARN] Failed to remove directory path=/data/chroot/4/opt/pkg error=Device busy (os error 16)