diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 000000000..e724ea085
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,2 @@
+[env]
+RUST_BACKTRACE = "1"
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fd242a757..e551e7461 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -66,8 +66,6 @@ jobs:
           cargo test
           --workspace
           ${{ steps.prepare.outputs.feature-flags }}
-        env:
-          RUST_BACKTRACE: 1
       - name: Run slow tests
         run: >
           cargo test
@@ -75,8 +73,6 @@ jobs:
           ${{ steps.prepare.outputs.feature-flags }}
           --features expensive-tests
           -- --ignored
-        env:
-          RUST_BACKTRACE: 1
       - name: Verify working directory is clean
         run: git diff --exit-code
 
diff --git a/.gitignore b/.gitignore
index cd8e4b1f6..eb5a316cb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1 @@
 target
-.cargo