ci: change steps

.github/workflows/ci.yml

@@ -10,11 +10,20 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - name: Install target
-        run: rustup target add thumbv7em-none-eabihf
-
-      - name: Build
-        run: cargo build --target thumbv7em-none-eabihf --release
-
-      - name: Run tests
-        run: cargo test --verbose
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+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          target: thumbv7em-none-eabihf
+          override: true
+      - name: build
+        uses: actions-rs/cargo@v1
+        with:
+          use-cross: true
+          command: build
+          args: --verbose --release --target thumbv7em-none-eabihf --features rt,unproven,stm32l432
+      - name: test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --lib --target x86_64-unknown-linux-gnu --features rt,unproven,stm32l432
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