fix macos and mingw

.github/workflows/ci.yml

@@ -26,6 +26,10 @@ jobs:
     runs-on: ${{ matrix.target.os }}
 
     steps:
+      - uses: Setup Routing
+        if: matrix.target.os == 'macos-latest'
+        run: sudo ifconfig lo0 alias 127.0.0.3
+    
       - uses: actions/checkout@v2
 
       - name: Install ${{ matrix.version }}
@@ -70,6 +74,7 @@ jobs:
           args: --workspace --bins --examples --tests
 
       - name: tests
+        if: matrix.target.triple != 'x86_64-pc-windows-gnu'
         uses: actions-rs/cargo@v1
         with:
           command: test