diff --git a/.github/workflows/cargo.yml b/.github/workflows/cargo.yml
index fb0ee84a..55336fa2 100644
--- a/.github/workflows/cargo.yml
+++ b/.github/workflows/cargo.yml
@@ -1,5 +1,8 @@
 name: CI
 
+env:
+  CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
+
 on:
   push:
   pull_request:
@@ -16,8 +19,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - stable
-          - nightly
+          - beta
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -29,3 +31,7 @@ jobs:
       - uses: actions-rs/cargo@v1
         with:
           command: test
+          args: --all-features
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test