CI: Add missing rustup components

[fmease]

This attempts to fix the CI failure experienced in PR #25: https://github.com/pacman-repo-builder/arch-pkg-text/actions/runs/16651411652/job/47125370150.

I don't know what changed in the last few months, the latest commit on the master branch 9454e83 from March 22 is green.

I might be looking at the wrong thing but it seems like dtolnay/rust-toolchain installs Rust toolchains with the minimal profile: https://github.com/dtolnay/rust-toolchain/blob/4305c38b25d97ef35a8ad1f985ccf2d2242004f2/action.yml#L90. That profile doesn't contain the components rustfmt and clippy. It's odd though because that seems to have been the case for several years, so I don't know why CI used to work just fine a few months ago.

Edit: Not sure if this will fix it, I'll try to test it in my fork. Done.

[fmease]

Okay, so I've iterated on this in my fork (fmease-extra#1) and it seems to work: https://github.com/fmease-extra/KSXGitHub__arch-pkg-text/actions/runs/16654576277/job/47136123275

[fmease]

I've removed the dtolnay/rust-toolchain action because it doesn't work well or at all with the rust-toolchain / rust-toolchain.toml file. See dtolnay/rust-toolchain#159.

I still don't know why it used to work a few months ago in your project. Maybe rustup changed its behavior in a recent version, that's my only explanation.

At least on ubuntu-latest which this workflow uses, rustup comes preinstalled, so we can just use it directly to install the toolchain.

[fmease]

I also tried to just specify the components (https://github.com/dtolnay/rust-toolchain?tab=readme-ov-file#inputs):

      - name: Install Rust toolchain
      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt, clippy

but that didn't seem to get picked up by rustup, so I scraped it.

[KSXGitHub]

I have been aware of the failure of dtolnay/rust-toolchain for a while. So I dropped it in favor of a simpler solution: #26 (review)

[KSXGitHub]

I planned to address this PR in the weekends by pushing the real fix, but since I don't want to see you pulling your hair out. This is the real fix: KSXGitHub/parallel-disk-usage#278

[fmease]

I see, thanks for the quick reply! Feel free to close this PR then. I don't quite see the need to manually install rustup as you've done in KSXGitHub/parallel-disk-usage#278 (unless you want to pin it to a certain version) since it should come preinstalled on the Ubuntu actions runners but I might be missing the bigger picture here.

[KSXGitHub]

unless you want to pin it to a certain version

The rust-toolchain file pins the compiler version, no?

[fmease]

I meant the version of rustup itself (latest version is currently rustup 1.28.2 (2025-06-02)), not of any Rust toolchain.

[KSXGitHub]

I see. Well I just copied my workflow files around without any deep thought to it. Maybe remove the action entirely still work after all? I will test it this weekends.

[KSXGitHub]

I see, thanks for the quick reply! Feel free to close this PR then. I don't quite see the need to manually install rustup as you've done in KSXGitHub/parallel-disk-usage#278 (unless you want to pin it to a certain version) since it should come preinstalled on the Ubuntu actions runners but I might be missing the bigger picture here.

The preinstalled rustup fails for the same reason that GitHub Action failed: The default rustup wouldn't automatically install clippy and rustfmt. So fetching rustup is the only way.

Commit: e68c5b1
Action logs: https://github.com/pacman-repo-builder/arch-pkg-text/actions/runs/16691859664/job/47250691385