1 use thiserror::Error; 2 3 #[derive(Debug)] 4 struct NoDisplay; 5 6 #[derive(Error, Debug)] 7 #[error("thread: {thread}")] 8 pub struct Error { 9 thread: NoDisplay, 10 } 11 12 #[derive(Error, Debug)] 13 #[error("thread: {thread:o}")] 14 pub struct ErrorOctal { 15 thread: NoDisplay, 16 } 17 main()18fn main() {} 19