Add (only) ASAN workflow

github/workflows/asan.yml

@@ -0,0 +1,24 @@
+on:
+  push:
+    branches: [main]
+  pull_request:
+name: Address sanitizer
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          override: true
+      - uses: actions/checkout@v2
+      - name: cargo test -Zsanitizer=address
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          # only --lib --tests b/c of https://github.com/rust-lang/rust/issues/53945
+          args: --lib --tests --all-features --target x86_64-unknown-linux-gnu
+        env:
+          ASAN_OPTIONS: "detect_odr_violation=0:detect_leaks=0"
+          RUSTFLAGS: "-Z sanitizer=address"