Worked on upgrading the Rust toolchain and improving code quality within the tarantool/datafusion repository. Focused on updating the workspace to Rust 1.91.0 and resolving clippy errors, the work ensured the codebase aligned with the latest Rust standards and maintained a clean build. Emphasized code quality improvement and dependency management, adopting modern Rust tooling and linting practices to enhance continuous integration reliability and developer experience. Collaborated on upgrade-related commits, contributing to a smoother development workflow. Utilized Rust as the primary language, with a technical approach centered on maintaining up-to-date dependencies and enforcing consistent code quality across the project.