Hi,
(sorry for my bad english ;P)
I just started rust this morning.
I don't find the probleme. If i can copy/paste the code in book, i have the same error.
The compiling error is :
src\main.rs:11:25: 11:41 error: unresolved name `rand::thread_rng`
src\main.rs:11 let nombre_secret = rand::thread_rng().gen_range(1, 100);