error: use of `format!` to build up a string from an iterator --> src/label.rs:207:23 | 207 | self.binary = bytes | _______________________^ 208 | | .iter() 209 | | .map(|byte| format!("{byte:08b}")) 210 | | .collect::<String>() | |________________________________^ | help: call `fold` instead --> src/label.rs:209:14 | 209 | .map(|byte| format!("{byte:08b}")) | ^^^ help: ... and use the `write!` macro here --> src/label.rs:209:25 | 209 | .map(|byte| format!("{byte:08b}")) | ^^^^^^^^^^^^^^^^^^^^^ = note: this can be written more efficiently by appending to a `String` directly = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#format_collect = note: `-D clippy::format-collect` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::format_collect)]`