fix(ci): use same Rust version for Python tests as for building the p…

…ackage

.github/workflows/check-onnx-backend.yaml

@@ -5,6 +5,10 @@ on:
     branches: [master, staging]
   pull_request:
 
+env:
+  RUST_BACKTRACE: 1
+  RUST_VERSION: 1.66
+
 jobs:
   build_manylinux:
     name: Build and Test ONNX Backend
@@ -22,18 +26,16 @@ jobs:
           sudo apt install -y libegl1-mesa libgl1-mesa-dri libxcb-xfixes0-dev mesa-vulkan-drivers
       - uses: actions-rs/toolchain@v1
         with:
+          toolchain: ${{ env.RUST_VERSION }}
           profile: minimal
-          toolchain: stable
           override: true
       - name: test
         run: |
           cd wonnx-py
-          rustup override set nightly-2022-01-01
-          export RUSTFLAGS='-C target-feature=+fxsr,+sse,+sse2,+sse3,+ssse3,+sse4.1,+popcnt'
           python3 -m venv .env
           source .env/bin/activate
           pip install --upgrade pip
           pip install maturin
           pip install -r requirements.txt
           maturin develop
-          WGPU_BACKEND=vulkan pytest tests/test_onnx_backend.py
+          WGPU_BACKEND=vulkan pytest tests/test_onnx_backend.py