Bug Report

Version

0.1.25

Platform

Windows 10 64-bit

Crates

• tracing

Description

Functions wrapped in #[tracing::instrument] will not trigger lints such as dead_code. See andrewhickman/fn-error-context#3 for a very similar issue (in a much simpler macro) which was caused by dropping some spans on the macro tokens.

Minimal example to reproduce:

#[tracing::instrument]
fn never_used() {}

fn main() {}

Without the instrument attribute, we get a dead_code lint warning, but with it applied the warning is suppressed.