Package rust-coreutils does not provide external reference files

Background

At package build time debhelper tries to extract package metadata which will be used later to create a SBOM. In particular, package rust-coreutils, since it includes statically linked libraries, should report several rust pacakges, but none of them are present.

This seems to be caused by special build rules in rust-coreutils.

Reproducibility

How often the issue is hit when repeating the steps to reproduce and changing nothing?

Put the ✅ in the most appropriate entry:

1. ✅ always
2. often, but not always
3. rarely

Impact of bug

Due to this issue the BOM does not capture the reality of the sources.

Outcomes

• pkg/debhelper!40 (merged)
• pkg/debhelper!42 (merged)
• pkg/debhelper!43 (merged)

Management data

This section is for management only, it should be the last one in the description.

/cc @em @Balasubramanian @sudarshan @wlozano

Phabricator link: https://phabricator.apertis.org/T10756