diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ea14d773..dfbbe1d7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,6 +27,9 @@ jobs:
       - name: install LLVM on Windows
         if: matrix.os == 'windows-latest'
         run: choco install llvm -y
+      - name: Environment
+        run: |
+          echo ::set-env name=RUST_BACKTRACE::full
       - name: Run tests
         uses: actions-rs/cargo@v1
         with: