[digizeph]

Summary

cargo clippy --all-features --all-targets reported four findings in examples and tests, so the repository could not gate on that flag set.

Changes

• examples/read_csv_in_tar.rs: drop a redundant borrow in a println!
• tests/s3_large_upload.rs, src/s3/mod.rs: use u64::div_ceil instead of hand-rolled ceiling division
• tests/basic_integration.rs: assert the bool directly

Formatting was already clean in these files after cargo fmt.

Testing

• cargo fmt --check
• cargo clippy --all-features --all-targets -- -D warnings
• cargo test --all-features (11 test binaries, all pass)

[Copilot]

🟢 Approval recommended

The four small edits preserve intended behavior, are compatible with the declared Rust minimum version, and leave no unresolved findings.

No open issues 🎉

What changed in this PR

This PR clears four Clippy findings in OneIO’s examples and tests, enabling strict lint checks across all features and targets without changing production behavior.

Changes:

• Replace manual ceiling division with div_ceil in S3 tests.
• Simplify a boolean assertion.
• Use inline formatting in the CSV-in-tar example.

File	Description
tests/​s3_large_upload.rs	Simplify the expected multipart count calculation.
tests/​basic_integration.rs	Assert reader success directly.
src/​s3/​mod.rs	Simplify the chunk-count assertion in a unit test.
examples/​read_csv_in_tar.rs	Remove a redundant borrow through inline formatting.

_{Review effort: Balanced}