Improve CI job for running tests

.config/nextest.toml

@@ -0,0 +1,6 @@
+[profile.ci]
+fail-fast = false
+leak-timeout = "200ms"
+
+[profile.ci.junit]
+path = "nextest-results.xml"

.github/workflows/check.yaml

@@ -31,9 +31,6 @@ on:
       test_results_url:
         description: "URL of the test results artifact"
         value: ${{ jobs.nextest.outputs.test_results_url }}
-      doctest_results_url:
-        description: "URL of the doctest results artifact"
-        value: ${{ jobs.doctest.outputs.test_results_url }}
   workflow_dispatch:
 
 concurrency:
@@ -155,41 +152,27 @@ jobs:
         with: 
           toolchain: ${{ env.RUST_TOOLCHAIN }}
       - uses: Swatinem/rust-cache@v2
+      # install tool to convert cargo's JSON test output to JUNIT format
+      - run: |
+          cargo install cargo2junit
       # Using nextest because it's faster than built-in test
       - uses: taiki-e/install-action@nextest
       - name: Run cargo nextest
         run: |
-          cargo nextest run --message-format libtest-json-plus ${{ matrix.feature-flags }} > testresults${{ matrix.feature-flags }}.json
+          cargo nextest run ${{ matrix.feature-flags }} --profile ci
+      - name: Run doctests
+        run: |
+          # we use tee to let cargo test print to the console
+          RUSTC_BOOTSTRAP=1 cargo test --doc ${{ matrix.feature-flags }} -- -Z unstable-options --format json --report-time | tee target/doctest-results.json
+          # write output to same directory as the one used by cargo nextest in order
+          # to flatten the directory hierarchy when uploading the test results
+          cat target/doctest-results.json | cargo2junit > target/nextest/ci/doctest-results.xml
 
       - name: Upload all-features test results artifact
         id: test_results
         if: matrix.feature-flags == '--all-features'
         uses: actions/upload-artifact@v4
         with:
           name: test-results
-          path: testresults--all-features.json
-
-  # [impl->req~up-language-ci-test~1]
-  doctest:
-    # Run doctests separately, as nextest doesn't yet (https://github.com/nextest-rs/nextest/issues/16)
-    outputs:
-      test_results_url: ${{ steps.doctest_results.outputs.artifact-url }}
-    runs-on: ubuntu-latest
-    env:
-      RUSTDOCFLAGS: -Dwarnings
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          submodules: "recursive"
-      - uses: dtolnay/rust-toolchain@master
-        with: 
-          toolchain: ${{ env.RUST_TOOLCHAIN }}
-      - name: Run doc tests
-        run: |
-          RUSTC_BOOTSTRAP=1 cargo test --doc --all-features -- -Z unstable-options --format json --report-time > doctestresults--all-features.json
-      - name: Upload doctest results artifact
-        id: doctest_results
-        uses: actions/upload-artifact@v4
-        with:
-          name: doctest-results
-          path: doctestresults--all-features.json
+          # this will include the nextest and doctest result files in the archive's root folder
+          path: target/nextest/ci/*-results.xml

.github/workflows/release.yaml

@@ -93,7 +93,7 @@ jobs:
           file_glob: true
           tag: ${{ github.ref }}
 
-      # Test report - we later need the download_url output of the upload step
+      # Test results - we later need the download_url output of the upload step
       - name: Download test report
         uses: actions/download-artifact@v4
         with: