Make platform.sh sensitive to all failures
Make platform.sh sensitive to all failures

Without "set -e", if you run this script using older cabal, it might continue running after failing to create a sandbox, which would install hptool's dependencies into user's local cabal installation.
ardumont/haskell-platform,gbaz/haskell-platform,ardumont/haskell-platform,bgamari/haskell-platform,erantapaa/haskell-platform,erantapaa/haskell-platform,thomie/haskell-platform,erantapaa/haskell-platform,gbaz/haskell-platform,bgamari/haskell-platform