Expanding Horizons: Rust Embraces Outreachy for Inclusivity and Mentorship

Introduction

The Rust Project has long championed open-source mentorship, participating in programs like Google Summer of Code (GSoC) for multiple years and OSPP before that. Now, the project is taking a significant step by joining the Outreachy program for the May 2026 cohort. This move underscores Rust's commitment to fostering a diverse and inclusive community by providing internship opportunities to people from underrepresented backgrounds who face systemic barriers in the tech industry.

What Is Outreachy and How Is It Different From Google Summer of Code?

While both Outreachy and GSoC are prestigious open-source internship programs, they differ in key ways that shape the applicant experience. The most notable difference lies in the application process. In Outreachy, candidates first apply to the overall program, then—after acceptance—they can approach specific community projects. In contrast, GSoC allows applicants to apply directly to a project from the start.

Another critical distinction is the role of contributions. GSoC encourages but does not mandate prior contributions; applicants can rely on their proposal alone. Outreachy, however, requires a dedicated contribution period where interns must actively engage with the community and submit code, documentation, or other meaningful work before their application is considered complete. This requirement ensures that interns have hands-on experience with the project before the formal internship begins.

Finally, the stipend source sets them apart. GSoC internships are fully funded by Google, covering both contributor stipends and administrative overhead. Outreachy relies on the participating communities to cover these costs. The Rust Project, therefore, channels its own resources to support its Outreachy interns, reflecting a deep investment in mentorship and diversity.

Rust's Commitment to Diversity and Inclusion

Outreachy's mission aligns perfectly with the Rust community's core values. The program focuses on individuals who face underrepresentation, systemic bias, or discrimination in the tech industry in their home countries. By participating, Rust not only gains talented contributors but also sends a clear message that open source should be accessible to everyone, regardless of background. This initiative complements existing mentorship efforts, such as the Rust Foundation's grants and the compiler team's inclusive hiring practices.

The Four Interns and Their Projects for May 2026

Due to limited funding and mentoring capacity, the Rust Project selected four exceptional interns for the May 2026 cohort. Each project addresses a specific area of compiler development, tooling, or type theory. Below are the details of the three projects described so far (the fourth will be announced soon).

Calling Overloaded C++ Functions From Rust

Intern: Ajay Singh
Mentors: teor, Taylor Cramer, Ethan Smith

This project aims to implement an experimental mechanism that allows Rust code to invoke overloaded C++ functions directly. C++ overloading—where multiple functions share the same name but differ in parameters—poses a challenge for Rust's foreign function interface (FFI). The intern will prototype a solution and test it with representative use cases, paving the way for seamless interoperation between Rust and legacy C++ libraries.

Code Coverage of the Rust Compiler at Scale

Intern: Akintewe Oluwasola
Mentor: Jack Huey

Ensuring that the Rust compiler itself is thoroughly tested is critical for its reliability. This project focuses on developing workflows to run and analyze code coverage across the entire compiler test suite and on ecosystem crates detected by crater. The goal is to identify inadequately tested areas within the compiler and the ecosystem, and to build continuous analysis tools that provide real-time insights to compiler developers. Such infrastructure will help prevent regressions and improve long-term code quality.

Fuzzing the a-mir-formality Type System Implementation

Intern: Tunde-Ajayi Olamiposi
Mentors: Niko Matsakis, Rémy Rakic, tiif

Rust's type system is evolving, and the a-mir-formality project models the language's type and trait system in a formal, verifiable manner. This internship involves developing and applying fuzzing techniques to stress-test that formal model. By generating random well-typed and ill-typed programs, the intern will uncover inconsistencies, memory safety issues, or algorithmic edge cases. The results will directly inform improvements to Rust's compiler and its underlying type theory.

Looking Ahead: How to Get Involved

Rust's participation in Outreachy is a natural extension of its ongoing mentorship programs. If you're interested in contributing, consider exploring the project descriptions above to see how you might collaborate after the internship. The Rust Project also encourages potential mentors to step forward for future cohorts—you can learn more on the official Rust community page.

For those interested in applying to Outreachy in later rounds, the program's eligibility criteria are inclusive: anyone facing underrepresentation in their local tech industry is welcome. Check the Outreachy website for upcoming application deadlines.

Conclusion

By adding Outreachy to its repertoire of mentorship initiatives, the Rust Project is taking concrete action to broaden participation in open source. The May 2026 cohort's projects—ranging from C++ interop to compiler coverage and type system fuzzing—demonstrate the high impact that diverse interns can achieve. We look forward to seeing their contributions and hope this inspires more communities to embrace inclusive mentorship.