if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then
choco source add -n mistuke -s https://www.myget.org/F/mistuke/api/v2
choco install cabal-head -pre
if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then
choco source add -n mistuke -s https://www.myget.org/F/mistuke/api/v2
choco install cabal-head -pre