have a travis job that makes sure benchmarks don't break

[matthiaskrgr]

I have seen ./x.py bench break several times now, would it be possible to have a ci job run (or cargo check?) the benchmarks once to make sure everything compiles?

[csmoe]

If I get your point,

1. create a /bench task inside src/ci/docker as the existing images like x86_64-gnu did(but with some custom modifications like ENV SCRIPT python2.7 ../x.py bench),
2. exec ./src/ci/docker/run.sh bench;
3. don't forget to add bench folder into your local .gitignore.

I saved myself with that when fought with my "dirty" local machine.