warning: redundant guard --> src/flamegraph/mod.rs:620:32 | 620 | Some(delta) if delta == 0 => write!( | ^^^^^^^^^^ | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_guards = note: `#[warn(clippy::redundant_guards)]` on by default help: try | 620 - Some(delta) if delta == 0 => write!( 620 + Some(0) => write!( |