Why is this not detected by the set -eu

Author: vmcj

.github/jobs/baseinstall.sh

@@ -88,6 +88,7 @@ section_end
 if [ "${db}" = "install" ]; then
     section_start "Install DOMjudge database"
     /opt/domjudge/domserver/bin/dj_setup_database -uroot -p${MYSQL_ROOT_PASSWORD} bare-install
+    echo $?
     section_end
 elif [ "${db}" = "upgrade" ]; then
     section_start "Upgrade DOMjudge database"