becnh is a tool for comparing Clippy's PR in a reproducible environment. There aren't unstable configuration, or weird Git artifacts that may change results. Just isolated rust-lang/rust and rust-lang/rust-clippy clones that the user isn't meant to change manually, to benchmark :)
Clone this repo with git clone https://github.com/blyxyas/becnh or download it in any other way and just run becnh. In the case that you just want to download the singular becnh file, make sure to put it in a new folder.
becnh is meant to be used over SSH, in a controlled environment. It just controls configuration, git and the benchmarks, so the hardware is up to you. I usually use one of the Rust Dev Desktops, but any server that yields consistent results is good enough. Running becnh in personal hardware along with other processes like a graphical interface or a fancy shell isn't advised, as that would limit how much reproducible those benchmarks are.
As becnh is meant to be used for PRs first, it takes a PR number (from the rust-lang/rust-clippy repo) and a branch to build and measure.