2026-06-02T11:11:18.908Z [ INFO] Starting package build
2026-06-02T11:11:18.909Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-bulktest.tar.gz dest=/data/chroot/16
2026-06-02T11:11:19.444Z [ INFO] Running make stage stage=pre-clean
2026-06-02T11:11:22.042Z [ INFO] Running make stage stage=checksum
2026-06-02T11:11:22.618Z [ERROR] Package build failed
2026-06-02T11:11:23.392Z [ WARN] Failed to remove directory path=/data/chroot/16/opt/pkg error=Device busy (os error 16)