chore: strip CI coverage, benchmarks, unsupported targets, and integration tests

Removes code coverage (grcov/codecov), CodSpeed benchmarks, FreeBSD
tests, and cross-compilation targets (s390x, riscv64, armv7, i686)
from upstream CI workflows. Also removes the integration-tests
workflow entirely -- it depends on cloud backend secrets that the
fork does not configure, so every run fails.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: mmastrac

.github/workflows/benchmarks.yml

@@ -118,14 +118,8 @@ jobs:
             rustc: beta
             notest_cuda_compilers: clang++
             extra_desc: cuda12.8
-            no_coverage: true
     env:
       RUST_BACKTRACE: 1
-      COVERAGE_REPORT_DIR: "target/debug"
-      COVERAGE_REPORT_FILE: "target/debug/lcov.info"
-      BINARY_DIR: "target/debug"
-      GRCOV_IGNORE_OPTION: '--ignore build.rs --ignore "/*" --ignore "[a-zA-Z]:/*"'
-      GRCOV_EXCLUDE_OPTION: '--excl-br-line "^\s*((debug_)?assert(_eq|_ne)?!|#\[derive\()"'
       NOTEST_CUDA_COMPILERS: ${{ matrix.notest_cuda_compilers || '' }}
       CARGO_PROFILE_DEV_DEBUG: '0' # save disk space
     steps:
@@ -139,7 +133,6 @@ jobs:
         uses: ./.github/actions/rust-toolchain
         with:
           toolchain: ${{ matrix.rustc }}
-          components: llvm-tools-preview
 
       - if: ${{ contains(matrix.os, 'ubuntu') }}
         name: Install gcc & clang for tests
@@ -164,39 +157,6 @@ jobs:
         with:
           cuda-version: ${{ matrix.cuda }}
 
-      - name: "`grcov` ~ install"
-        if: ${{ ! matrix.no_coverage }}
-        shell: bash
-        run: |
-          GRCOV_VERSION="0.10.7"
-          if [[ "$RUNNER_OS" == "Windows" ]]; then
-            TARGET="x86_64-pc-windows-msvc"
-            EXT="zip"
-          elif [[ "$RUNNER_OS" == "macOS" && "$RUNNER_ARCH" == "ARM64" ]]; then
-            TARGET="aarch64-apple-darwin"
-            EXT="tar.bz2"
-          elif [[ "$RUNNER_OS" == "macOS" ]]; then
-            TARGET="x86_64-apple-darwin"
-            EXT="tar.bz2"
-          else
-            TARGET="x86_64-unknown-linux-musl"
-            EXT="tar.bz2"
-          fi
-          URL="https://github.com/mozilla/grcov/releases/download/v${GRCOV_VERSION}/grcov-${TARGET}.${EXT}"
-          curl -sL "$URL" -o "grcov.${EXT}"
-          if [[ "$EXT" == "zip" ]]; then
-            unzip -q "grcov.${EXT}" -d "$HOME/.cargo/bin/"
-          else
-            tar -xjf "grcov.${EXT}" -C "$HOME/.cargo/bin/"
-          fi
-
-      - name: Create config for testing
-        if: ${{ ! matrix.no_coverage }}
-        run: |
-          mkdir -p .cargo
-          echo '[env]
-          LLVM_PROFILE_FILE = { value = "target/debug/coverage/default-%p-%8m.profraw", relative = true }' >> .cargo/config.toml
-
       - if: ${{ matrix.cuda != '' && runner.os == 'Linux' }}
         name: Free disk space for CUDA tests
         run: |
@@ -208,45 +168,13 @@ jobs:
         env:
           CARGO_INCREMENTAL: "0"
           RUSTC_WRAPPER: ""
-          RUSTFLAGS: "-Cinstrument-coverage -Ccodegen-units=1 -Copt-level=0 -Coverflow-checks=off"
 
       - name: Upload failure
         if: failure()
         uses: ./.github/actions/artifact_failure
         with:
           name: test-${{ matrix.os }}-${{ matrix.rustc || 'stable' }}-${{ matrix.extra_desc }}
 
-  # coverage:
-      - name: Display coverage files
-        if: ${{ ! matrix.no_coverage }}
-        shell: bash
-        run:
-          grcov . -s . --binary-path $BINARY_DIR --output-type files $GRCOV_IGNORE_OPTION $GRCOV_EXCLUDE_OPTION | sort --unique
-
-      - name: Generate coverage data (via `grcov`)
-        if: ${{ ! matrix.no_coverage }}
-        id: coverage
-        shell: bash
-        run: |
-          mkdir -p "${COVERAGE_REPORT_DIR}"
-          grcov . -s . --binary-path $BINARY_DIR --output-type lcov --output-path "${COVERAGE_REPORT_FILE}" --branch $GRCOV_IGNORE_OPTION $GRCOV_EXCLUDE_OPTION
-          echo "report=${COVERAGE_REPORT_FILE}" >> $GITHUB_OUTPUT
-
-      - name: Upload coverage results (to Codecov.io)
-        if: ${{ ! matrix.no_coverage }}
-        uses: codecov/codecov-action@v5
-        with:
-          files: ${{ steps.coverage.outputs.report }}
-          ## flags: IntegrationTests, UnitTests, ${{ steps.vars.outputs.CODECOV_FLAGS }}
-          flags: ${{ steps.vars.outputs.CODECOV_FLAGS }}
-          name: codecov-umbrella-${{ matrix.os }}-rust_${{ matrix.rustc || 'stable' }}-${{ matrix.extra_desc }}
-          fail_ci_if_error: true
-          # verbose: true
-        env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-
-
-
   build:
     name: build ${{ matrix.binary || 'sccache' }} ${{ matrix.target }}
     runs-on: ${{ matrix.os }}
@@ -259,16 +187,7 @@ jobs:
           - os: ubuntu-22.04
             target: x86_64-unknown-linux-musl
             container: '{"image": "messense/rust-musl-cross:x86_64-musl"}'
-          - os: ubuntu-22.04
-            target: s390x-unknown-linux-musl
-            container: '{"image": "messense/rust-musl-cross:s390x-musl"}'
-            lto: "false"
-          - os: ubuntu-22.04
-            target: s390x-unknown-linux-gnu
-          - os: ubuntu-22.04
-            target: riscv64gc-unknown-linux-musl
-            container: '{"image": "messense/rust-musl-cross:riscv64gc-musl"}'
-            lto: "false"
+          # s390x, riscv64, armv7, i686 removed from Vercel fork (aws-lc-sys cross-compilation issues)
           - os: ubuntu-22.04
             binary: sccache-dist
             extra_args: --no-default-features --features="dist-server"
@@ -277,12 +196,6 @@ jobs:
           - os: ubuntu-22.04
             target: aarch64-unknown-linux-musl
             container: '{"image": "messense/rust-musl-cross:aarch64-musl"}'
-          - os: ubuntu-22.04
-            target: armv7-unknown-linux-musleabi
-            container: '{"image": "messense/rust-musl-cross:armv7-musleabi"}'
-          - os: ubuntu-22.04
-            target: i686-unknown-linux-musl
-            container: '{"image": "messense/rust-musl-cross:i686-musl"}'
           - os: macos-14
             target: aarch64-apple-darwin
             macosx_deployment_target: 11.0
@@ -306,48 +219,7 @@ jobs:
           target: ${{ matrix.target }}
         if: ${{ !matrix.container }}
 
-      - name: Install s390x cross-compilation toolchain
-        if: ${{ matrix.target == 's390x-unknown-linux-gnu' }}
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y gcc-s390x-linux-gnu g++-s390x-linux-gnu
-          mkdir -p .cargo
-          cat >> .cargo/config.toml <<EOF
-          [target.s390x-unknown-linux-gnu]
-          linker = "s390x-linux-gnu-gcc"
-          EOF
-
-      - name: Install rust-src for s390x-musl
-        if: ${{ matrix.target == 's390x-unknown-linux-musl' }}
-        run: |
-          # Remove corrupted nightly toolchain if it exists
-          rustup toolchain uninstall nightly || true
-          # Clean up any leftover files
-          rm -rf ~/.rustup/toolchains/nightly-* || true
-          # Install fresh nightly with minimal profile
-          rustup toolchain install nightly --profile minimal
-          rustup component add rust-src --toolchain nightly
-
-      - name: fix build openssl error on s390x
-        if: ${{  matrix.target  == 's390x-unknown-linux-musl' }}
-        run: |
-          # see https://github.com/openssl/openssl/issues/27323
-          echo CFLAGS="-march=z10 -mzarch" >> $GITHUB_ENV
-          echo CXXFLAGS="$CFLAGS" >> $GITHUB_ENV
-          echo RUSTFLAGS="-C target-cpu=z10" >> $GITHUB_ENV
-
-      - name: Build (s390x-musl with build-std)
-        if: ${{ matrix.target == 's390x-unknown-linux-musl' }}
-        run: cargo +nightly build --locked --release --bin ${{ matrix.binary || 'sccache' }} --target ${{ matrix.target }} --features=openssl/vendored ${{ matrix.extra_args }} -Zbuild-std
-        env:
-          MACOSX_DEPLOYMENT_TARGET: ${{ matrix.macosx_deployment_target }}
-          DEVELOPER_DIR: ${{ matrix.developer_dir }}
-          SDKROOT: ${{ matrix.sdkroot }}
-          RUSTFLAGS: ${{ env.RUSTFLAGS || matrix.rustflags }}
-          CARGO_PROFILE_RELEASE_LTO: ${{ matrix.lto || 'true' }}
-
       - name: Build
-        if: ${{ matrix.target != 's390x-unknown-linux-musl' }}
         run: cargo build --locked --release --bin ${{ matrix.binary || 'sccache' }} --target ${{ matrix.target }} --features=openssl/vendored ${{ matrix.extra_args }}
         env:
           MACOSX_DEPLOYMENT_TARGET: ${{ matrix.macosx_deployment_target }}
@@ -372,67 +244,7 @@ jobs:
           if-no-files-found: error
 
 
-  test_freebsd:
-    name: test freebsd-15.0 rust stable
-    runs-on: ${{ matrix.job.os }}
-    timeout-minutes: 70
-    strategy:
-      fail-fast: false
-      matrix:
-        job:
-          - { os: ubuntu-22.04 }
-    steps:
-      - uses: actions/checkout@v5
-      - name: Prepare, build and test
-        uses: vmactions/freebsd-vm@v1
-        with:
-          mem: 8192
-          usesh: true
-          sync: rsync
-          copyback: false
-          prepare: pkg install -y ca_root_nss curl gmake gtar pot sudo
-          run: |
-            #####################################################################################
-            ###  Prepare, build, and test
-            #####################################################################################
-            ###  based on ref: <https://github.com/rust-lang/rustup/pull/2783>
-            ###  and on ref: <https://github.com/uutils/coreutils/commit/86c610a84b8b6c>
-            ###  * NOTE: All steps need to be run in this block, otherwise, we are operating back
-            ###    on the mac host.
-            set -exo pipefail
-            #
-            ### Basic user setup ################################################################
-            TEST_USER=tester
-            TEST_USER_HOME="/opt/$TEST_USER"
-            REPO_NAME=${GITHUB_WORKSPACE##*/}
-            WORKSPACE_PARENT="/home/runner/work/${REPO_NAME}"
-            WORKSPACE="${WORKSPACE_PARENT}/${REPO_NAME}"
-            export WORKSPACE
-            #
-            mkdir -p "$TEST_USER_HOME"
-            pw adduser -n "$TEST_USER" -d "$TEST_USER_HOME" -c "Tester" -h -
-            chown -R "$TEST_USER":"$TEST_USER" "$TEST_USER_HOME"
-            chown -R "$TEST_USER":"$TEST_USER" "/$WORKSPACE_PARENT"/
-            cat > /usr/local/etc/sudoers.d/wheel<<EOF
-            $TEST_USER ALL=(ALL) NOPASSWD: ALL
-            EOF
-            #
-            ### Install rust stable from rustup  ################################################
-            su "$TEST_USER" -c "/bin/sh -exo pipefail" <<"EOH"
-            whoami
-            echo "$HOME"
-            fetch -o /tmp/rustup.sh https://sh.rustup.rs
-            sh /tmp/rustup.sh -y --profile=minimal
-            ### Run tests #######################################################################
-            . "$HOME/.cargo/env"
-            "$WORKSPACE/scripts/freebsd-ci-test.sh"
-            EOH
-            # end
-      - name: Upload failure
-        if: failure()
-        uses: ./.github/actions/artifact_failure
-        with:
-          name: test-freebsd-15.0-stable
+  # test_freebsd removed from Vercel fork
 
   release:
     name: release