2026-04-28T17:00:25.649Z [ INFO] Starting package build
2026-04-28T17:00:25.655Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-bulktest.tar.gz dest=/data/chroot/3
2026-04-28T17:00:26.812Z [ INFO] Running make stage stage=pre-clean
2026-04-28T17:00:30.458Z [ INFO] Running make stage stage=checksum
2026-04-28T17:00:34.203Z [ERROR] Package build failed
2026-04-28T17:00:35.211Z [ WARN] Failed to remove directory path=/data/chroot/3/opt/pkg error=Device busy (os error 16)