This combines the tips from #1820 and the patch submitted in #1675.
The latter wasn't taken as-is because I didn't agree with some of the
changes, and in particular, it removed the ability to easily test the
release on a branch with a dummy tag name. I've tried to add that back
here with the 'rg_version' output. Overall though, using outputs is
indeed much simpler.
Closes#1675, Closes#1820
This also replaces '--all' in Cargo commands with '--workspace'. The
former has apparently been deprecated.
We also fix a couple warnings that this new step detected.
Closes#1848
It appears to be intermittently failing. Specifically, a2x seems to be
failing occasionally with no apparent reason why. The error message it
gives is inscrutable. Sigh.
It's not clear why removing this makes things work. I've submitted
PRs that passed CI with fetch-depth=1. Maybe it only fails when
PRs are submitted from external contributors?
Either way, for now, we remove this and absorb the extra cost in
order to get PRs passing CI again.
PR #1501
Basically, matrix.os needs to be defined for every build. We
were commenting out some of the builds in order to debug
CI in the `include` section, but we also need to comment them
out in the `build section.
