Re-enabled code coverage

.github/workflows/coverage.yml

@@ -113,29 +113,26 @@ jobs:
 
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: stable
-          profile: minimal
+          toolchain: nightly
+          components: clippy, llvm-tools-preview, rustfmt
 
-      - uses: Swatinem/rust-cache@v1
-
-      - name: Compile tests
-        run: cargo test --no-run --locked
-
-      - name: Run tests
-        run: cargo test --all-features
+      - name: Install cargo-llvm-cov
+        run: |
+          curl -LsSf https://github.com/taiki-e/cargo-llvm-cov/releases/latest/download/cargo-llvm-cov-x86_64-unknown-linux-gnu.tar.gz | \
+          tar xzf - -C ~/.cargo/bin
 
-      # Code coverage. Was removed due to #1221
+      - uses: Swatinem/rust-cache@v1
 
-      # - name: Generate code coverage
-      #   run: |
-      #     cargo +nightly llvm-cov clean --workspace
-      #     cargo +nightly llvm-cov --test failpoints --no-report --features fail/failpoints
-      #     cargo +nightly llvm-cov --no-report --all-features
-      #     cargo +nightly llvm-cov --no-run --lcov --output-path lcov.info
+      - name: Generate code coverage
+        run: |
+          cargo +nightly llvm-cov clean --workspace
+          cargo +nightly llvm-cov --test failpoints --no-report --features fail/failpoints
+          cargo +nightly llvm-cov --no-report --all-features
+          cargo +nightly llvm-cov --no-run --lcov --output-path lcov.info
 
-      # - name: Upload coverage to Codecov
-      #   uses: codecov/[email protected]
-      #   with:
-      #     token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
-      #     files: lcov.info
-      #     fail_ci_if_error: true
+      - name: Upload coverage to Codecov
+        uses: codecov/[email protected]
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
+          files: lcov.info
+          fail_ci_if_error: true