`vhost-device-gpu` has dependencies that do not work well on musl.
Also `vhost-device-gpio` has the same problem, but we merged
workarounds.
Instead of continuing to make hacks to compile empty main for these
applications. Better to have our own pipeline also for the main
workspace. In that way we can easily exclude applications (e.g. that
do not support musl) as discussed in
https://github.com/rust-vmm/vhost-device/pull/801
The new `.buildkite/main-tests.json` file is copied from
rust-vmm-ci/.buildkite/test_description.json from commit 09aef99
("chore: update container version to v48")
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Rename the file to avoid confusion and add a readme to better explain
why we want to keep it aligned with
`rust-vmm-ci/.buildkite/test_description.json`
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
