A quick multiple-choice check before you move on. Answer every question, then submit to see how you did.
1.In the Rust logging ecosystem described, what is the role of the log crate versus env_logger?
2.Why does calling env_logger::init() a second time panic, and what should tests or libraries use instead?
3.With RUST_LOG=myapp=debug set, what output behavior should you expect?
4.Given env_logger is configured at the info level, which of these log calls will actually produce output?
5.A developer runs their program with RUST_LOG unset and sees little or no log output despite having log::info! calls. What is the most likely explanation?