diff --git a/.github/workflows/test_stable_nightly.yml b/.github/workflows/test_stable_nightly.yml
index 6a1073de..e37e705f 100644
--- a/.github/workflows/test_stable_nightly.yml
+++ b/.github/workflows/test_stable_nightly.yml
@@ -32,10 +32,10 @@ jobs:
           CARGO: ${{ steps.toolchain.outputs.cargo }}
           RUSTUP: ${{ steps.toolchain.outputs.rustup }}
         run: |
-          echo "$RUSTC" && test "$RUSTC"
-          echo "$RUSTC_HASH" && test "$RUSTC_HASH"
-          echo "$CARGO" && test "$CARGO"
-          echo "$RUSTUP" && test "$RUSTUP"
+          echo "$RUSTC" && test "$RUSTC" != ""
+          echo "$RUSTC_HASH" && test "$RUSTC_HASH" != ""
+          echo "$CARGO" && test "$CARGO" != ""
+          echo "$RUSTUP" && test "$RUSTUP" != ""
   install_in_docker:
     runs-on: ubuntu-latest
     strategy:
@@ -68,7 +68,7 @@ jobs:
           CARGO: ${{ steps.toolchain.outputs.cargo }}
           RUSTUP: ${{ steps.toolchain.outputs.rustup }}
         run: |
-          echo "$RUSTC" && test "$RUSTC"
-          echo "$RUSTC_HASH" && test "$RUSTC_HASH"
-          echo "$CARGO" && test "$CARGO"
-          echo "$RUSTUP" && test "$RUSTUP"
+          echo "$RUSTC" && test "$RUSTC" != ""
+          echo "$RUSTC_HASH" && test "$RUSTC_HASH" != ""
+          echo "$CARGO" && test "$CARGO" != ""
+          echo "$RUSTUP" && test "$RUSTUP" != ""