[Pkg-rust-maintainers] Bug#1013120: rust-strum: please upgrade to v0.21

[Peter Green]

> Please upgrade to upstream branch v0.21, needed by projects I am
> preparing for Debian.

There appear to be a number of reverse dependenices that will need
investigation for compatibility with a new semver-bumping version

> plugwash at coccia:~$ zcat /srv/ftp.debian.org/mirror/dists/sid/main/source/Sources.gz /srv/ftp.debian.org/mirror/dists/sid/main/binary-amd64/Packages.gz | grep -v Testsuite-Triggers | grep-dctrl rust-strum -spackage
> Package: rust-ashpd
> Package: rust-coreutils
> Package: rust-dfrs
> Package: rust-strum
> Package: rust-strum-macros
> Package: rust-syscallz
> Package: rust-system-deps
> Package: librust-ashpd-dev
> Package: dfrs
> Package: sniffglue
> Package: librust-strum-dev
> Package: librust-strum-macros-dev
> Package: librust-syscallz-dev
> Package: librust-system-deps-dev
> plugwash at coccia:~$

I also wonder if it makes more sense to update to the latest (non-yanked) version rather
than a newer but still outdated version.