chore: add rust-toolchain.toml

.github/workflows/test32bit.yml

@@ -38,6 +38,9 @@ jobs:
       - name: Install rust tooling for 32 bit builds
         run: |
           rustup target install i686-unknown-linux-gnu
+      - name: Install rust toolchain
+        run: |
+          rustup toolchain install
       - name: cargo check
         run: |
             cargo hack check --all-targets --target=i686-unknown-linux-gnu --feature-powerset

.github/workflows/tests.yml

@@ -33,6 +33,8 @@ jobs:
       - uses: taiki-e/install-action@cargo-hack
       - run: sudo apt-get update -y
         if: matrix.os == 'ubuntu-24.04'
+      - name: update toolchain
+        run: rustup toolchain install
       - name: cargo check (powerset)
         run: cargo hack check --feature-powerset --no-dev-deps
       - name: cargo check examples (powerset)
@@ -74,6 +76,8 @@ jobs:
           components: clippy
       - uses: Swatinem/rust-cache@v2.7.5
       - uses: taiki-e/install-action@cargo-hack
+      - name: update toolchain
+        run: rustup toolchain install
       - name: clippy (all targets, feature powerset)
         run: cargo hack clippy --all-targets --feature-powerset -- -D warnings
 

rust-toolchain.toml

@@ -0,0 +1,5 @@
+[toolchain]
+channel = "1.87.0"
+components = [ "rustfmt", "clippy" ]
+targets = ["x86_64-unknown-linux-gnu", "i686-unknown-linux-gnu"]
+profile = "minimal"