Is there any as large as possible single source (or normal with amalgamation version) more or less meaningful project that could be compiled directly with rustc -o executable src.rs? Just to compare build time / memory consumption.
Yes, that's why I've asked about possible rust support of creating such version of normal project. The main issue, I'm unaware of comparably large rust projects without 3rdparty dependencies.
I believe ripgrep has only or mostly dependencies that the main author also controls. It's structured so that ripgrep depends on regex crates by the same author, for example.