scope sccache to CPU model

.github/workflows/ci.yml

@@ -4,6 +4,11 @@ name: CI
 
 env:
   RUSTC_WRAPPER: /usr/local/bin/sccache
+  SCCACHE_BUCKET: ${{ secrets.SCCACHE_BUCKET }}
+  AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+  AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+  SCCACHE_S3_USE_SSL: ${{ secrets.SCCACHE_S3_USE_SSL }}
+  SCCACHE_REGION: ${{ secrets.SCCACHE_REGION }}
 
 jobs:
   test:
@@ -19,6 +24,12 @@ jobs:
       - name: Install CI Libraries
         run: sudo ./ci/install-ci-libraries.sh 10
 
+      - name: scope sccache to CPU model
+        run: export SCCACHE_S3_KEY_PREFIX=`sudo cat /proc/cpuinfo | grep name | uniq | awk {'print $6'}`
+
+      - name: print SCCACHE_S3_KEY_PREFIX
+        run: echo $SCCACHE_S3_KEY_PREFIX
+
       - name: sccache version
         run: /usr/local/bin/sccache -V