Hello,

> > An idea that came up on #guix several months ago was to separate the
> > building of packages from testing.  Testing would be a continuation of
> > the build, like grafts could be envisioned as a continuation of the
> > build.  

> What problems would that solve?

If one can run tests suites locally upon built packages, that would already save
quite a great deal of planet heat I guess, not building from the source in the first
place, but only if they find a bug, fix it ... - and iiuc, Mark would have found the
bug he mentioned ... 

> Even if those components worked for the maintainers who ran the tests on
> their own machines and made a release, they might not work correctly in
> your own situation.  Mark's story is a great example of this!  For this
> reason, some people will still choose to build things from source
> themselves, even if substitutes are available from some other place.

But they would rebuild from the source just to run the tests? Sounds to me that, if
possible, separate test suites from the building process is an added value to the
current situation

Cheers,
David