Manually setup Go environment

.github/workflows/main.yml

@@ -6,15 +6,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-go@v1
-        with:
-          go-version: '*'
-      - name: Print Go environment
+      - name: Setup Go environment
         run: |
+            export PATH="${GOPATH}/bin:${PATH}"
             echo ${GOPATH}
-            echo ${GOROOT}
             echo ${PATH}
-            go env
       - name: Install dependencies
         run: make setup
       - name: Run tests