Remove unnecessary main() wrapper from doctest

Author: djc

src/lib.rs

@@ -24,31 +24,29 @@
 //!
 //! use rustc_version::{version, version_meta, Channel, Version};
 //!
-//! fn main() {
-//!     // Assert we haven't travelled back in time
-//!     assert!(version().unwrap().major >= 1);
+//! // Assert we haven't travelled back in time
+//! assert!(version().unwrap().major >= 1);
 //!
-//!     // Set cfg flags depending on release channel
-//!     match version_meta().unwrap().channel {
-//!         Channel::Stable => {
-//!             println!("cargo:rustc-cfg=RUSTC_IS_STABLE");
-//!         }
-//!         Channel::Beta => {
-//!             println!("cargo:rustc-cfg=RUSTC_IS_BETA");
-//!         }
-//!         Channel::Nightly => {
-//!             println!("cargo:rustc-cfg=RUSTC_IS_NIGHTLY");
-//!         }
-//!         Channel::Dev => {
-//!             println!("cargo:rustc-cfg=RUSTC_IS_DEV");
-//!         }
+//! // Set cfg flags depending on release channel
+//! match version_meta().unwrap().channel {
+//!     Channel::Stable => {
+//!         println!("cargo:rustc-cfg=RUSTC_IS_STABLE");
 //!     }
-//!
-//!     // Check for a minimum version
-//!     if version().unwrap() >= Version::parse("1.4.0").unwrap() {
-//!         println!("cargo:rustc-cfg=compiler_has_important_bugfix");
+//!     Channel::Beta => {
+//!         println!("cargo:rustc-cfg=RUSTC_IS_BETA");
+//!     }
+//!     Channel::Nightly => {
+//!         println!("cargo:rustc-cfg=RUSTC_IS_NIGHTLY");
+//!     }
+//!     Channel::Dev => {
+//!         println!("cargo:rustc-cfg=RUSTC_IS_DEV");
 //!     }
 //! }
+//!
+//! // Check for a minimum version
+//! if version().unwrap() >= Version::parse("1.4.0").unwrap() {
+//!     println!("cargo:rustc-cfg=compiler_has_important_bugfix");
+//! }
 //! ```
 
 #[cfg(test)]