Dandandan opened a new pull request, #22585:
URL: https://github.com/apache/datafusion/pull/22585

   ## Which issue does this PR close?
   
   N/A.
   
   ## Rationale for this change
   
   Use the Wild linker for Linux CI Rust builds to evaluate whether faster 
linking improves CI build and test wall time.
   
   ## What changes are included in this PR?
   
   - Install `clang` in the Linux Rust builder action so it can drive an 
arbitrary linker.
   - Install `wild-linker` 0.9.0 in the Linux Rust builder action.
   - Extend Linux CI `RUSTFLAGS` with `-C linker=clang -C 
link-args=--ld-path=wild` while preserving the existing debuginfo and 
incremental settings.
   
   ## Are these changes tested?
   
   Yes:
   
   - `cargo info [email protected]`
   - `cargo fmt --all`
   - `cargo clippy --all-targets --all-features -- -D warnings`
   - YAML parse check for `.github/actions/setup-builder/action.yaml`
   - `git diff --check -- .github/actions/setup-builder/action.yaml`
   
   ## Are there any user-facing changes?
   
   No. This only changes Linux CI linker configuration.
   


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