I'd like to highlight @tomaka for his numerous projects (glium, vulkano, glutin). I know he's also involved in some other crates I take for granted, like gl_generator.
I like to play with gamedev, but I am a newcomer to OpenGL things and I have been very grateful for projects like glium and gl_generator that not only give me a good starting point, but through various documentation has informed me of OpenGL pitfalls.
He recently wrote a post-mortem for glium, which I think is good as a matter of reflection, but I'm still very impressed with that project, and the others he is tirelessly contributing to.
Well done!