Add (only) LSAN workflow

github/workflows/lsan.yml

@@ -0,0 +1,32 @@
+on:
+  push:
+    branches: [main]
+  pull_request:
+name: Leak sanitizer
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          override: true
+      - uses: actions/checkout@v2
+      - run: |
+            # to get the symbolizer for debug symbol resolution
+            sudo apt install llvm
+            # to fix buggy leak analyzer:
+            # https://github.com/japaric/rust-san#unrealiable-leaksanitizer
+            sed -i '/\[features\]/i [profile.dev]' Cargo.toml
+            sed -i '/profile.dev/a opt-level = 1' Cargo.toml
+            cat Cargo.toml
+        name: Enable debug symbols
+      - name: cargo test -Zsanitizer=leak
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --all-features --target x86_64-unknown-linux-gnu
+        env:
+          RUSTFLAGS: "-Z sanitizer=leak"
+          LSAN_OPTIONS: "suppressions=lsan-suppressions.txt"