diff --git a/.github/actions/rustup/action.yml b/.github/actions/rustup/action.yml
index 893739f128a..b2edc67fdb9 100644
--- a/.github/actions/rustup/action.yml
+++ b/.github/actions/rustup/action.yml
@@ -89,4 +89,4 @@ runs:
       if: ${{ startsWith(runner.name, 'GitHub Actions') }}
       with:
         shared-key: ${{ inputs.shared-key }}
-        # save-if: ${{ inputs.save-cache == 'true' }}
+        save-if: ${{ inputs.save-cache == 'true' }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 73ace82585c..2c8c1e7e32a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,6 +21,11 @@ on:
     tags-ignore:
       - "**"
 
+env:
+  # Since CI builds are more akin to from-scratch builds, incremental compilation adds unnecessary dependency-tracking and IO overhead, reducing caching effectiveness.
+  # https://github.com/rust-lang/rust-analyzer/blob/25368d24308d6a94ffe8b99f0122bcf5a2175322/.github/workflows/ci.yaml#L11
+  CARGO_INCREMENTAL: 0
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
   cancel-in-progress: ${{ github.ref_name != 'main' }}