Error code E0783

The range pattern ... is no longer allowed.

Erroneous code example:

#![allow(unused)] fn main() { match 2u8 { 0...9 => println!("Got a number less than 10"), // error! _ => println!("Got a number 10 or more"), } }

Older Rust code using previous editions allowed ... to stand for exclusive ranges which are now signified using ..=.

To make this code compile replace the ... with ..=.

#![allow(unused)] fn main() { match 2u8 { 0..=9 => println!("Got a number less than 10"), // ok! _ => println!("Got a number 10 or more"), } }