Add a persistent trace using the RocksDB key-value store.

.github/workflows/coverage.yml

@@ -2,6 +2,12 @@ name: Coverage
 
 on: [push, pull_request]
 
+env:
+  # It's really `--all-features`, but not adding `persistence`, we expect the
+  # persistence feature to go away again in the future (but if we add it
+  # unconditionally it changes the code that's run significantly)
+  ALMOST_ALL_FEATURES: --features "with-serde with-csv with-nexmark"
+
 jobs:
   check:
     name: Coverage
@@ -29,7 +35,7 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: llvm-cov
-          args: --all-features --workspace --lcov --output-path coverage.info --ignore-filename-regex tests.rs
+          args: ${{ env.ALMOST_ALL_FEATURES }} --workspace --lcov --output-path coverage.info --ignore-filename-regex tests.rs
 
       - name: Upload to codecov.io
         uses: codecov/codecov-action@v3

.github/workflows/main.yml

@@ -8,6 +8,10 @@ env:
   CARGO_NET_RETRY: 10
   RUST_BACKTRACE: short
   RUSTUP_MAX_RETRIES: 10
+  # It's really `--all-features`, but not adding `persistence`, we expect the
+  # persistence feature to go away again in the future (but if we add it
+  # unconditionally it changes the code that's run significantly)
+  ALMOST_ALL_FEATURES: --features "with-serde with-csv with-nexmark"
 
 jobs:
   tests:
@@ -78,6 +82,12 @@ jobs:
           args: --no-run --no-default-features  --target ${{ matrix.target }}
 
       - name: Run tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: ${{ env.ALMOST_ALL_FEATURES }} --target ${{ matrix.target }}
+
+      - name: Run tests with persistent trace
         uses: actions-rs/cargo@v1
         with:
           command: test
@@ -115,7 +125,7 @@ jobs:
   #           MIRIFLAGS: "-Zmiri-tag-raw-pointers -Zmiri-disable-isolation -Zmiri-preemption-rate=0"
   #         with:
   #           command: miri
-  #           args: test --all-features
+  #           args: test ${{ env.ALMOST_ALL_FEATURES }}
 
   test-sanitizers:
     name: Sanitizer Tests
@@ -185,7 +195,7 @@ jobs:
         with:
           command: test
           # leak sanitizer is crashing on exchange tests.
-          args: --all-features --target ${{ matrix.target }} -Z build-std -- --skip 'exchange'
+          args: ${{ env.ALMOST_ALL_FEATURES }} --target ${{ matrix.target }} -Z build-std -- --skip 'exchange'
 
   clippy:
     name: Clippy