STT: Stop the test run if any builds fail

The script must fail and be excluded from the build stats if any
build run fails.

Bug: 284915566
Test: run_command with fault command
Change-Id: I0bc8d14286ebce52036f45ba4dee675f333a3ff0

treble/combined_build_test.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -e
 #
 # Copyright (C) 2023 The Android Open Source Project
 #
@@ -84,10 +84,9 @@ if [[ -n "${dist_dir}" ]]; then
 fi
 
 run_command() {
+    echo "Running: ${1}"
     if [[ -z "${dry_run}" ]]; then
         $1
-    else
-        echo "$1"
     fi
 }