message: Don't == true
diff: @@ -599,7 +599,7 @@ fn env_args(
  // The `target-applies-to-host` setting is somewhat misleading in name. What it really does it
  // opt into a _particular_ legacy Cargo behavior for how rustflags are picked up.
  let target_applies_to_host = config.target_applies_to_host()?;
  - if target_applies_to_host == true {
  + if target_applies_to_host {
  // We're operating in "legacy" Cargo mode, where the presence or absence of --target makes
  // a difference for which configuration options are picked up. Specifically:
  //
  