apply rustdoc lto in ToolBuild

Signed-off-by: onur-ozkan <work@onurozkan.dev>

Author: onur-ozkan

src/bootstrap/src/core/build_steps/tool.rs

@@ -4,13 +4,12 @@ use std::{env, fs};
 #[cfg(feature = "tracing")]
 use tracing::instrument;
 
+use self::builder::cargo_profile_var;
 use crate::core::build_steps::compile::is_lto_stage;
 use crate::core::build_steps::toolstate::ToolState;
 use crate::core::build_steps::{compile, llvm};
 use crate::core::builder;
-use crate::core::builder::{
-    Builder, Cargo as CargoCommand, RunConfig, ShouldRun, Step, cargo_profile_var,
-};
+use crate::core::builder::{Builder, Cargo as CargoCommand, RunConfig, ShouldRun, Step};
 use crate::core::config::{DebuginfoLevel, RustcLto, TargetSelection};
 use crate::utils::channel::GitInfo;
 use crate::utils::exec::{BootstrapCommand, command};
@@ -126,6 +125,7 @@ impl Step for ToolBuild {
         }
 
         cargo.args(self.cargo_args);
+
         let _guard = builder.msg_tool(
             Kind::Build,
             self.mode,