Split cargo CI job into x64 and arm

There is so much conditional logic on compiling for x64 and armv7
that we are better off with just defining two separate jobs without
any conditional logic.

.github/workflows/ci.yml

@@ -64,34 +64,21 @@ jobs:
   test_daemons:
     strategy:
       matrix:
-        target: [ x86_64-unknown-linux-gnu, x86_64-apple-darwin ]
-        include:
-          - target: x86_64-unknown-linux-gnu
-            os: ubuntu-latest
-          - target: x86_64-apple-darwin
-            os: macos-latest
-          - target: armv7-unknown-linux-gnueabihf
-            os: ubuntu-latest
+        os: [ ubuntu-latest, macos-latest ]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
       - name: Setup rust toolchain
         run: rustup show
       - uses: Swatinem/rust-cache@v1.3.0
-      - 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
-      - run: cargo build --target ${{ matrix.target }}
+      - run: cargo build --bins --tests
       - run: cargo test --workspace
-      - name: Smoke test ${{ matrix.target }} binary
-        if: matrix.target != 'armv7-unknown-linux-gnueabihf'
+      - name: Smoke test ${{ matrix.os }} binary
         run: |
-          target/${{ matrix.target }}/debug/maker --data-dir=/tmp/maker --generate-seed &
+          target/debug/maker --data-dir=/tmp/maker --generate-seed &
           sleep 5s # Wait for maker to start
 
-          target/${{ matrix.target }}/debug/taker --data-dir=/tmp/taker --generate-seed &
+          target/debug/taker --data-dir=/tmp/taker --generate-seed &
           sleep 5s # Wait for taker to start
 
           curl --fail http://localhost:8000/api/alive
@@ -99,7 +86,27 @@ jobs:
       - name: Upload binaries
         uses: actions/upload-artifact@v2
         with:
-          name: maker-and-taker-binaries-${{ matrix.target }}
+          name: maker-and-taker-binaries-${{ matrix.os }}
+          path: |
+            target/debug/maker
+            target/debug/taker
+
+  daemons_arm_build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup rust toolchain
+        run: rustup show
+      - uses: Swatinem/rust-cache@v1.3.0
+      - name: Install compiler for armhf arch
+        run: |
+          sudo apt-get update
+          sudo apt-get install gcc-arm-linux-gnueabihf
+      - run: cargo build --target=armv7-unknown-linux-gnueabihf --bins
+      - name: Upload binaries
+        uses: actions/upload-artifact@v2
+        with:
+          name: maker-and-taker-binaries-armv7
           path: |
-            target/${{ matrix.target }}/debug/maker
-            target/${{ matrix.target }}/debug/taker
+            target/armv7-unknown-linux-gnueabihf/debug/maker
+            target/armv7-unknown-linux-gnueabihf/debug/taker