Treat warnings as errors in CI

jturner314 · jturner314 · commit 48b63ee5b72e · 2021-02-18T14:07:14.000-05:00
This helps avoid accidentally missing a warning.
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -10,6 +10,7 @@ env:
   CARGO_TERM_COLOR: always
   HOST: x86_64-unknown-linux-gnu
   FEATURES: "test docs"
+  RUSTFLAGS: "-D warnings"
 
 jobs:
   tests:
