Error code E0137
Note: this error code is no longer emitted by the compiler.
More than one function was declared with the #[main]
attribute.
Erroneous code example:
#![allow(unused)] #![feature(main)] fn main() { #[main] fn foo() {} #[main] fn f() {} // error: multiple functions with a `#[main]` attribute }
This error indicates that the compiler found multiple functions with the
#[main]
attribute. This is an error because there must be a unique entry
point into a Rust program. Example:
#![allow(unused)] #![feature(main)] fn main() { #[main] fn f() {} // ok! }