Add crate to the benchmarks

[Mark-Simulacrum]

https://github.com/White-Oak/rust-compilation-time-ram-regression from rust-lang/rust#31157.

[Mark-Simulacrum]

Clone the repository into collector/benchmarks, add a Makefile for it (see other benchmarks), and submit a PR to the repo. Let me know if you have any questions!

[smt923]

I'd like to try working on this, if all goes well PR should be up in a little while