ci: setup codecov

Author: jjeffcaii

.github/workflows/rust.yml

@@ -16,13 +16,21 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - name: Build
-        run: cargo build --verbose
-      - name: Prepare
+      - name: Download resources
         run: |
           wget -O GeoLite2-Country.mmdb https://git.io/GeoLite2-Country.mmdb
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          override: true
+      - name: Build
+        run: cargo build --verbose
       - name: Run tests
         run: cargo test --verbose
+        env:
+          CARGO_INCREMENTAL: '0'
+          RUSTFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
+          RUSTDOCFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
       - name: rust-grcov
         uses: actions-rs/[email protected]
       - name: Upload coverage reports to Codecov