Add message that Rust is currently building to deploy log

[bram-dingelstad]

When pushing a project through Git with the Vercel builder, it seems to install the rust builder, but then fail to move past the installation of Rust.

The code I use is available here

It works by rebuilding the project again using the same build cache (since Rust is now installed). I would love this to work in one go though :/

[bram-dingelstad]

My apologies, it seems it does work. It just didn't the entirety of last night which is why I wrote the report.
Perhaps some log messages it's starting to build would be helpful? Otherwise it just seems like it's stuck.

[ecklf]

Hey we released a new runtime in #80 which should hopefully not cause this issue any more. In case it does setting VERCEL_BUILDER_DEBUG to true in your project environment variables should give us more detailed output to work this through.

[ecklf]

I'll close this for housekeeping purposes as this issue was created prior to the reworked runtime. Feel free to re-open if your issue isn't resolved.