| $ cargo run | |
| Compiling collections v0.1.0 (file:///projects/collections) | |
| Finished dev [unoptimized + debuginfo] target(s) in 0.43s | |
| Running `target/debug/collections` | |
| thread 'main' panicked at src/main.rs:4:19: | |
| byte index 1 is not a char boundary; it is inside 'З' (bytes 0..2) of `Здравствуйте` | |
| note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace |