This also splits the .bin output to have a separate .man attribute:
previously it contained both.
This also adds provisional support for aarch64-linux, which seems to
build easily. (Full testing will ideally come via NixOS tests later)
Signed-off-by: Austin Seipp <aseipp@pobox.com>
CockroachDB is failing to build on `x86_64-darwin` according to
Hydra. I don't have a Mac or Windows machine to debug the builds
on so I can't support those.