rust-toolchain: Pin to 1.69.0 (#38)

Author: JohnAZoidberg

.github/workflows/firmware.yml

@@ -10,30 +10,13 @@ env:
 jobs:
   building:
     name: Building
-    continue-on-error: ${{ matrix.experimental || false }}
-    strategy:
-      matrix:
-        # All generated code should be running on stable now
-        # TODO: Also test nightly
-        #rust: [nightly, stable]
-        rust: [stable]
-        #include:
-        #  # Nightly is only for reference and allowed to fail
-        #  - rust: nightly
-        #    experimental: true
-        #os:
-        #  # Check compilation works on common OSes
-        #  # (i.e. no path issues)
-        #  # - macOS-latest
-        #  - ubuntu-latest
-        #  - windows-latest
-    runs-on: [ubuntu-latest] #${{ matrix.os }}
+    runs-on: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@master
-        with:
-          toolchain: ${{ matrix.rust }}
-          target: thumbv6m-none-eabi
+
+      - name: Setup Rust toolchain
+        run: rustup show
+
       - run: cargo install flip-link
       - run: cargo build -p ledmatrix
       - run: cargo build -p b1display
@@ -65,10 +48,10 @@ jobs:
       - uses: actions/checkout@v3
         with:
           submodules: true
-      - uses: dtolnay/rust-toolchain@stable
-        with:
-          components: clippy
-          target: thumbv6m-none-eabi
+
+      - name: Setup Rust toolchain
+        run: rustup show
+
       - run: |
           cargo clippy -p b1display -- --deny=warnings
           cargo clippy -p c1minimal -- --deny=warnings
@@ -81,8 +64,8 @@ jobs:
       - uses: actions/checkout@v3
         with:
           submodules: true
-      - uses: dtolnay/rust-toolchain@stable
-        with:
-          components: rustfmt
-          target: thumbv6m-none-eabi
+
+      - name: Setup Rust toolchain
+        run: rustup show
+
       - run: cargo fmt --all -- --check

Cargo.lock

@@ -0,0 +1,4 @@
+[toolchain]
+channel = "1.69.0"
+targets = ["thumbv6m-none-eabi"]
+components = ["clippy", "rustfmt"]