Fix

.github/actions/rust/action.yml

@@ -54,9 +54,15 @@ runs:
         {
           echo "CARGO_PROFILE_RELEASE_LTO=true"
           echo "CARGO_PROFILE_RELEASE_CODEGEN_UNITS=1"
+          case "${{ runner.os }}" in
+            Linux)
+              echo "RUSTFLAGS=-C linker=clang -C link-arg=-fuse-ld=mold $RUSTFLAGS"
+              ;;
+            Windows)
+              echo "RUSTFLAGS=-C link-arg=-fuse-ld=lld $RUSTFLAGS"
+              ;;
+          esac
         } >> "$GITHUB_ENV"
-        [ "${{ runner.os }}" == "Linux" ] && echo "RUSTFLAGS=$RUSTFLAGS -C linker=clang -C link-arg=-fuse-ld=mold" >> "$GITHUB_ENV"
-        [ "${{ runner.os }}" == "Windows" ] && echo "RUSTFLAGS=$RUSTFLAGS -C link-arg=-fuse-ld=lld" >> "$GITHUB_ENV"
 
     - name: Enable sscache
       if: runner.environment != 'github-hosted'

.github/workflows/bench.yml

@@ -49,7 +49,7 @@ jobs:
         run: |
           echo "/home/bench/.cargo/bin" >> "${GITHUB_PATH}"
           # Append to RUSTFLAGS, which may already be set by the Rust action.
-          echo "RUSTFLAGS=$RUSTFLAGS -C link-arg=-Wl,--no-rosegment, -C force-frame-pointers=yes" >> "$GITHUB_ENV"
+          echo "RUSTFLAGS=-C link-arg=-Wl,--no-rosegment, -C force-frame-pointers=yes $RUSTFLAGS" >> "$GITHUB_ENV"
 
       - name: Install Rust
         uses: ./.github/actions/rust

.github/workflows/sanitize.yml

@@ -61,7 +61,7 @@ jobs:
           RUST_BACKTRACE: 1
         run: |
           # Append to RUSTFLAGS, which may already be set by the Rust action.
-          export RUSTFLAGS="$RUSTFLAGS -Z sanitizer=${{ matrix.sanitizer }}"
+          export RUSTFLAGS="-Z sanitizer=${{ matrix.sanitizer }} $RUSTFLAGS"
           if [ "${{ matrix.os }}" = "ubuntu-latest" ]; then
             sudo apt-get install -y --no-install-recommends llvm
             TARGET="x86_64-unknown-linux-gnu"