Use --all-targets for the no-default-features CI run. (#874)

Slightly more coverage. This basically makes sure that tests still
compile in isolation that the workspace level tests mask with feature
unification.

Author: hildebrandmw

.github/workflows/ci.yml

@@ -157,6 +157,7 @@ jobs:
           for crate in "${crates[@]}"; do
             cargo clippy --locked --package "$crate" \
               --no-default-features \
+              --all-targets \
               --profile ci \
               --no-deps \
               --config "$RUST_CONFIG" \

diskann-benchmark-core/src/lib.rs

@@ -60,10 +60,10 @@ pub mod streaming;
 /// If error message change, the expected results can generally be regenerated by running
 /// the test suite with the environment variable
 /// ```text
-/// DISKANN_BENCHMARK_TEST=true
+/// DISKANN_BENCHMARK_TEST=overwrite
 /// ```
 /// set.
-#[cfg(test)]
+#[cfg(all(test, feature = "bigann"))]
 mod ux {
     const ENV_VAR: &str = "DISKANN_BENCHMARK_TEST";