2026-05-01T13:49:35.528Z [ INFO] Starting package build
2026-05-01T13:49:35.529Z [ INFO] Unpacking bootstrap kit bootstrap=/data/packages/SmartOS/bootstrap-pbulk/bootstrap-upstream-bulktest.tar.gz dest=/data/chroot/17
2026-05-01T13:49:36.118Z [ INFO] Running make stage stage=pre-clean
2026-05-01T13:49:39.986Z [ INFO] Running make stage stage=checksum
2026-05-01T13:49:44.183Z [ERROR] Package build failed
2026-05-01T13:49:45.489Z [ WARN] Failed to remove directory path=/data/chroot/17/opt/pkg error=Device busy (os error 16)