Install toolchain properly and configure cache per target

Author: thomaseizinger

.github/workflows/build-release-binaries.yml

@@ -24,7 +24,12 @@ jobs:
           ref: ${{ github.event.release.target_commitish }}
           token: ${{ secrets.BOTTY_GITHUB_TOKEN }}
 
+      - name: Install toolchain from rust-toolchain file
+        run: rustup show
+
       - uses: Swatinem/rust-cache@v1.3.0
+        with:
+          key: ${{ matrix.target }}
 
       - name: Install compiler for armhf arch
         if: matrix.target == 'armv7-unknown-linux-gnueabihf'

.github/workflows/ci.yml

@@ -13,7 +13,12 @@ jobs:
       - name: Checkout sources
         uses: actions/checkout@v2.3.4
 
+      - name: Install toolchain from rust-toolchain file
+        run: rustup show
+
       - uses: Swatinem/rust-cache@v1.3.0
+        with:
+          key: ${{ matrix.target }}
 
       - name: Check formatting
         uses: dprint/check@v1.5
@@ -38,18 +43,24 @@ jobs:
       - name: Checkout sources
         uses: actions/checkout@v2.3.4
 
+      - name: Install toolchain from rust-toolchain file
+        run: rustup show
+
+      - uses: Swatinem/rust-cache@v1.3.0
+        with:
+          key: ${{ matrix.target }}
+
       - name: Install compiler for armhf arch
         if: matrix.target == 'armv7-unknown-linux-gnueabihf'
         run: |
           sudo apt-get update
           sudo apt-get install gcc-arm-linux-gnueabihf
 
       - name: Build binary
-        run: |
-          cargo build -p rendezvous-server --target ${{ matrix.target }}
+        run: cargo build -p rendezvous-server --target ${{ matrix.target }}
 
       - name: Upload rendezvous-server binary
         uses: actions/upload-artifact@v2-preview
         with:
           name: rendezvous-server-${{ matrix.target }}
-          path: target/${{ matrix.target }}/debug/rendezvous-server
+          path: target/${{ matrix.target }}/debug/rendezvous-server