Toolchain-update PR: move debugging hints to extra comment

This will stop them from appearing in default commit messages.

.github/workflows/toolchain-upgrade.yml

@@ -36,6 +36,7 @@ jobs:
  run: git clean -f
 
  - name: Create Pull Request
+ id: create_pr
  if: ${{ env.next_step == 'create_pr' }}
  uses: peter-evans/create-pull-request@v6
  with:
@@ -47,14 +48,26 @@ jobs:
  Update Rust toolchain from nightly-${{ env.current_toolchain_date }} to
  nightly-${{ env.next_toolchain_date }} without any other source changes.
 
- This is an automatically generated pull request. If any of the CI checks fail,
- manual intervention is required. In such a case, review the changes at
- https://github.com/rust-lang/rust from
- https://github.com/rust-lang/rust/commit/${{ env.current_toolchain_hash }} up to
- https://github.com/rust-lang/rust/commit/${{ env.next_toolchain_hash }}. The log
- for this commit range is:
+ - name: Add debugging hints
+ if: ${{ steps.create_pr.outputs.pull-request-number }}
+ uses: actions/github-script@v6
+ with:
+ script: |
+ github.rest.issues.createComment({
+ issue_number: ${{ steps.create_pr.outputs.pull-request-number }},
+ owner: context.repo.owner,
+ repo: context.repo.repo,
+ body: >
+ This is an automatically generated pull request. If any of the CI checks fail,
+ manual intervention is required. In such a case, review the changes at
+ https://github.com/rust-lang/rust from
+ https://github.com/rust-lang/rust/commit/${{ env.current_toolchain_hash }} up to
+ https://github.com/rust-lang/rust/commit/${{ env.next_toolchain_hash }}. The log
+ for this commit range is:
+
+ ${{ env.git_log }}
+ })
 
- ${{ env.git_log }}
  - name: Create Issue
  if: ${{ env.next_step == 'create_issue' }}
  uses: dacbd/create-issue-action@main