Cache does not work: "reserveCache failed: Cache service responded with 503" on GitHub Actions

[enomoto11]

Hi, thank you for your great action!

I am using baptiste0928/cargo-install@v2 in my GitHub Actions workflow, but the cache feature never works.
Every time, I see the following log and the cache is not saved:

warning: be sure to add `/home/runner/.cargo-install/cargo-nextest/bin` to your PATH to be able to run the installed binaries
/usr/bin/tar --posix -cf cache.tzst --exclude cache.tzst -P -C /home/runner/work/my-project/my-project --files-from manifest.txt --use-compress-program zstdmt
Warning: Failed to save: reserveCache failed: Cache service responded with 503

Steps to reproduce:

1. Use the following step in a GitHub Actions workflow:

   - name: Install cargo-nextest
     uses: baptiste0928/cargo-install@v2
     with:
       crate: cargo-nextest
   

2. Run the workflow.
3. The above 503 error occurs every time, and the cache is never saved.

Environment:

• GitHub Actions: ubuntu-latest
• baptiste0928/cargo-install@v2
• Other cache actions (e.g., Swatinem/rust-cache@v2) work fine in the same workflow.

Questions:

• Do you know what could be causing the 503 error from the cache service? (Is it a rate limit, cache size, or something else?)
• If it is related to cache size, I am not sure how to debug or check the actual cache size being uploaded.
  Do you have any recommended way to investigate or debug this?
• Is there any workaround or recommended solution?

References:

• actions/cache documentation
• cargo-install@v2 README

Thank you in advance for your help!