Stop build script upon first error

util/build.sh

@@ -1,11 +1,12 @@
 #!/usr/bin/env bash
-# Copyright 2021 The Hush Developers
+# Copyright 2021-2022 Duke Leto and The Hush Developers
 # Distributed under the GPLv3 software license, see the accompanying
 # file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
-
 # Purpose: Script to build Hush lightwalletd on x86 64-bit arch
-
 # Check if go is installed on system and exits if it is not
+
+set -e
+
 if ! [ -x "$(command -v go)" ]; then
   echo 'Error: go is not installed. Install go and try again.' >&2
   exit 1