For my OpenGLRaw project, I'm using a .travis.yml generated by Herbert's https://github.com/hvr/multi-ghc-travis and the corresponding https://launchpad.net/~hvr/+archive/ubuntu/ghc PPA. Recently things broke on Travis CI, and there are a few strange things: * The cabal-install-head package seems to be based on cabal 1.23, which is older than cabal-install-1.24. Is this intended? * The OpenGLRaw package has no test suite, and this seems to be OK for cabal-install-head ( https://travis-ci.org/haskell-opengl/OpenGLRaw/jobs/114109605#L929), while cabal-install-1.24 fails in the "cabal test" step ( https://travis-ci.org/haskell-opengl/OpenGLRaw/jobs/114109606#L1022). This is a regression: I think that "cabal test" for a package without a test suite should be a no-op, at least that used to be the case. * Why does "cabal test" say "Re-configuring with test suites enabled. If this fails, please run configure manually." when "cabal configure" has already been run (including --enable-tests)? This looks like a bug... Cheers, S.