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z on  HEAD [?] is 📦 v0.1.0 via 𝗥 v1.62.0
➜ ls
Cargo.lock*  Cargo.toml*  main*  src/  target/

z on  HEAD [?] is 📦 v0.1.0 via 𝗥 v1.62.0
➜ cargo run
    Finished dev [unoptimized + debuginfo] target(s) in 0.17s
     Running `target/debug/z`
Integer: 2

z on  HEAD [?] is 📦 v0.1.0 via 𝗥 v1.62.0
➜ rustc src/main.rs -o src/main
error[E0432]: unresolved import `rand`
 --> src/main.rs:2:5
  |
2 | use rand::Rng;
  |     ^^^^ maybe a missing crate `rand`?

error[E0433]: failed to resolve: use of undeclared crate or module `rand`
 --> src/main.rs:5:15
  |
5 |     let rng = rand::thread_rng().gen_range(1..5);
  |               ^^^^ use of undeclared crate or module `rand`

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0432, E0433.
For more information about an error, try `rustc --explain E0432`.