Fix vagrant install using bash

.travis.yml

@@ -142,14 +142,14 @@ jobs:
       deploy:
         provider: bintray
         file: .travis.deploy.json
+        skip_cleanup: true
         user: $BINTRAY_USER
         key: $BINTRAY_APIKEY
         on:
           all_branches: true
 
     - stage: Deploy
       if: tag IS present
-      skip_cleanup: true
       before_install:
         - cp scripts/tests/.env.mysql.travis .env
         - docker-compose --version
@@ -166,7 +166,6 @@ jobs:
 
     - stage: Deploy
       if: tag IS present
-      skip_cleanup: true
       before_install:
         - scripts/vagrant/install-vagrant.sh
 
@@ -182,6 +181,7 @@ jobs:
       deploy:
         provider: bintray
         file: .travis.deploy.json
+        skip_cleanup: true
         user: $BINTRAY_USER
         key: $BINTRAY_APIKEY
         on:

scripts/vagrant/install-vagrant.sh

@@ -1,7 +1,8 @@
-#!/bin/sh
+#!/bin/bash
+set -euo pipefail
 
 # set version of vagrant to use :
-vagrantversion=2.0.2
+vagrantversion=2.0.3
 
 mkdir -p $HOME/vagrant
 pushd $HOME/vagrant > /dev/null