title: how to increase no activity wait time in travis CI?
body: <p>my test written for bash (which passes on my machine, test runs about 20-30 min) and I need to increase timeout for travis CI so that I can have successful build 
  i have tried changing timeout by adding travis_wait 30 but i am getting error</p>
  
  <pre><code>sudo: required
  
  arch:
    repos:
      - archlinuxfr=http://repo.archlinux.fr/$arch
    packages:
      # pacman packages
      - yaourt
      - archiso
    script:
      - ./build-repo
      - travis_wait 30 sudo ./build.sh -v
  </code></pre>
  
  <p>the error i am getting </p>
  
  <pre><code>script:
    - "curl -s https://raw.githubusercontent.com/xeon-zolt/arch-travis/master/arch-travis.sh | bash"
  travis_wait 30 sudo ./build.sh -v
  /bin/bash: travis_wait: command not found
  </code></pre>
  
  <p>how to fix it please teach me </p>