AppVeyor builds have been failing for a while now. I'm not familiar with Windows/MSVC, but this [1] build suggests a Haskell issue:
> Downloading the latest package list from hackage.haskell.org > cabal.exe: --enable-tests was specified, but tests can't be enabled in a > remote package > >C:\Program Files >(x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.CppCommon.targets(171,5): >error MSB6006: "cmd.exe" exited > with code 1. >[C:\projects\build\MSVC2015\x86\lib\hs\haskell_library.vcxproj] Can someone take a look? [1] https://ci.appveyor.com/project/ApacheSoftwareFoundation/thrift/builds/28597464/job/l52g285os7fqdw3k
