run tests on a 32-bit platform

Author: Freax13

.github/workflows/build.yml

@@ -57,6 +57,8 @@ jobs:
       - uses: dtolnay/rust-toolchain@nightly
         with:
           targets: x86_64-unknown-linux-musl, i686-unknown-linux-gnu, thumbv7em-none-eabihf
+      - run: sudo apt install build-essential
+        if: runner.os == 'Linux'
 
       - run: cargo build
 
@@ -75,6 +77,9 @@ jobs:
           cargo build --target i686-unknown-linux-gnu --no-default-features --features nightly
           cargo build --target thumbv7em-none-eabihf --no-default-features --features nightly
 
+      - run: cargo test --target i686-unknown-linux-gnu --no-default-features --features nightly
+        if: runner.os == 'Linux'
+
   bootloader-test:
     name: "Bootloader Integration Test"