[Haskell-cafe] Travis/Cabal help

Edward Z. Yang ezyang at mit.edu
Fri Sep 2 05:13:29 UTC 2016

Hello David,

I can take a closer work, but here's how you can debug it yourself:

1. Repro it on not-Travis (given that it's a solver error, should be
2. Turn on -v
3. Look through the entrails to see why criterion is not satisfiable.
   Maybe even just look at the dependencies in the benchmarks section.
   Could it be a cyclic dependency problem?


Excerpts from David Feuer's message of 2016-09-02 01:04:33 -0400:
> Gabriel Gonzalez has gotten Cabal benchmark integration working for
> containers, and then I broke it without realizing I'd done so because
> Travis CI wasn't building the benchmarks. When I got them working again
> locally and tried enabling them in .travis.yml (just adding
> --enable-benchmarks to the cabal configure line), things went kablooey:
> https://travis-ci.org/haskell/containers/jobs/156997144
> Does anyone know how to interpret those entrails? Is this something that
> can be fixed?

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