`musl-g++` missing when building `x86_64-unknown-linux-musl` artifact

Dear cargo dist team,

I have this pipeline https://github.com/eth-cscs/manta/actions/runs/13227334279/job/36919876655 created with cargo dist, one of the targets is `x86_64-unknown-linux-musl))` and currently fails because the crate `rdkafka` is a c binding and needs `musl-g++` to compile.

For some `reason x86_64-unknown-linux-gnu` works

Any idea? is this something that could be fixed?

thank you

Start with the linked GitHub Actions job and compare the x86_64-unknown-linux-musl setup with the working x86_64-unknown-linux-gnu setup. Trace how cargo-dist provisions build dependencies for the rdkafka C binding, then verify that the musl artifact can build with musl-g++ available.

Written by the indexing model from the issue text.