Thanks a lot. I think that's it. On Sep 2, 2016 7:36 AM, "Mikhail Glushenkov" wrote:

Hi,

On 2 September 2016 at 06:04, David Feuer wrote:

...

Does anyone know how to interpret those entrails? Is this something that can be fixed?

I think you just need to install the benchmark suite deps manually, like you do for the test suite:

https://github.com/haskell/containers/blob/master/.travis.yml#L31

Then you should be able to do 'configure --enable-benchmarks'.

The problem is that criterion itself depends on containers, and the solver can't handle such circular deps currently:

https://github.com/haskell/cabal/issues/1575

Hi, On 2 September 2016 at 16:55, David Feuer wrote:

Indeed, that fixed the problem. Unfortunately, now I have a different problem. The CI build with benchmarks takes *much* longer than the one without (I think this is mostly because of the time required to install Criterion's dependencies).

Try enabling caching on Travis: https://docs.travis-ci.com/user/caching/#Arbitrary-directories https://github.com/haskell/cabal/blob/master/.travis.yml#L86

The way that Cabal's CI does it is that it uses new-build, and places .cabal/store and some related directories in the cache. Here's the snippet: cache: directories: - $HOME/.cabal/packages - $HOME/.cabal/store - $HOME/.cabal/bin # We remove the index because it churns quite a bit and we don't want # to pay the cost of repeatedly caching it even though we don't care # about most changing packages. before_cache: - rm -fv $HOME/.cabal/packages/hackage.haskell.org/build-reports.log - rm -fv $HOME/.cabal/packages/hackage.haskell.org/00-index* Full yaml: https://github.com/haskell/cabal/blob/master/.travis.yml Edward Excerpts from David Feuer's message of 2016-09-02 12:04:40 -0400:

Last I spoke to Herbert, he didn't think the caching stuff was likely to be feasible for containers, because of its unusual place in the ecosystem. There may be some way around it though.

On Fri, Sep 2, 2016 at 11:57 AM, Mikhail Glushenkov wrote:

...

Hi,

On 2 September 2016 at 16:55, David Feuer wrote:

...

Indeed, that fixed the problem. Unfortunately, now I have a different problem. The CI build with benchmarks takes *much* longer than the one without (I think this is mostly because of the time required to install Criterion's dependencies).

Try enabling caching on Travis:

https://docs.travis-ci.com/user/caching/#Arbitrary-directories https://github.com/haskell/cabal/blob/master/.travis.yml#L86