Merge pull request #726 from Alexander-N/rust-backtrace

Set RUST_BACKTRACE=1 in windows tests

Author: kngwyu

.github/workflows/test.yml

@@ -31,3 +31,5 @@ jobs:
           pip install setuptools-rust pytest pytest-benchmark tox tox-venv
       - name: Test
         run: ci/actions/test
+    env:
+      RUST_BACKTRACE: 1