hacking on https://google.github.io/comprehensive-rust/ to figure this rust world out

Vincent Batts ecf2317a5b here is with reference, so it can be called more than once		2023-01-16 19:31:09 -05:00
src	here is with reference, so it can be called more than once	2023-01-16 19:31:09 -05:00
target	here is with reference, so it can be called more than once	2023-01-16 19:31:09 -05:00
Cargo.lock	compound types	2023-01-14 13:57:39 -05:00
Cargo.toml	single owner. borrowed references are "moved"	2023-01-16 19:12:42 -05:00