Function rustdoc::doctest::make::check_for_main_and_extern_crate
source ยท fn check_for_main_and_extern_crate(
crate_name: Option<&str>,
original_source_code: &str,
everything_else: &str,
crates: &str,
edition: Edition,
can_merge_doctests: bool,
) -> Result<(ParseSourceInfo, bool), FatalError>