Pass correct exit codes to CI.

run.sh

@@ -114,7 +114,7 @@ if [[ "$1" == "hemera" && "$runStage" == "build_script" ]]; then
 
         case "$jobState" in
             "BOOT_FAIL"|"CANCELLED"|"DEADLINE"|"FAILED"|"NODE_FAIL"|"OUT_OF_MEMORY"|"PREEMPTED"|"REVOKED"|"SPECIAL_EXIT"|"TIMEOUT")
-                exitCode=255
+                exitCode="$SYSTEM_FAILURE_EXIT_CODE"
                 1>&2 echo -e "${BOLD_RED}Slurm job stopped$NC"
                 break;;
             "COMPLETED")
@@ -141,7 +141,11 @@ if [[ "$1" == "hemera" && "$runStage" == "build_script" ]]; then
     exit "$exitCode"
 
 else
-    # run script without intervention
-    "$script"
+    # run script, propagate non-zero exit code as build failure code for CI
+    if "$script"; then
+        exit 0
+    else
+        exit "$BUILD_FAILURE_EXIT_CODE"
+    fi
 fi