reduce mem usage

Author: n-g

.github/workflows/pants.yaml

@@ -47,13 +47,13 @@ jobs:
     #     pants-ci-config: "['pants.toml', '/tmp/pants.toml']"
 
     - name: Manual install
+      env:
+        PANTS_LOCAL_STORE_SHARD_COUNT: 1
+        PANTS_LOCAL_STORE_PROCESSES_MAX_SIZE_BYTES: 536870912
       run: |
         curl --proto '=https' --tlsv1.2 -fsSL https://static.pantsbuild.org/setup/get-pants.sh | bash
         which -a pants
 
-        # Corrupted?
-        rm -rf /home/runner/.cache/pants/lmdb_store/
-
         pants --print-stacktrace -ldebug --version
 
     - name: Check BUILD files