warning: useless use of `format!` --> src/slots_processor/mod.rs:301:50 | 301 | ... .with_context(|| format!("Failed to sync forwarded block"))?; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using `.to_string()`: `"Failed to sync forwarded block".to_string()` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format = note: `#[warn(clippy::useless_format)]` on by default