makepkg runs check() inside the build container and meson writes each
test's output to the build tree, not to stdout. A failing test therefore
leaves only a summary line in the job log. Diagnosing it means reading
the package source and inferring the cause.
bin/build bind-mounts $SRC_DIR at /src, so the logs outlive the
container at src/**/meson-logs/ on the runner. Upload them when the
build step fails.
owe 0.2.7 showed the cost: owe:transition failed on aarch64 and passed
on x86_64, and CI carried no record of which assertion tripped.
Co-authored-by: Bjarne Oeverli <1419214+bjarneo@users.noreply.github.com>
