The range pattern ... is no longer allowed.
Erroneous code example:
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 ..=.
match 2u8 {
0..=9 => println!("Got a number less than 10"), // ok!
_ => println!("Got a number 10 or more"),
}