Enable backtraces for tests

diff --git a/.travis.yml b/.travis.yml
index 6a987f93748c130e958190ee832115ba7c978460..9aa632da05e0e976756cab9c1d054ad4a79c67f4 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,7 +27,7 @@ script:
 - |
   # Test plain miri
   cargo build --release --all-features &&
-  cargo test --release --all-features --all &&
+  RUST_BACKTRACE=1 cargo test --release --all-features --all &&
   cargo install --all-features --force
 - |
   # Test cargo miri