From 37d1ce91b5d81c9a7239eb33e17e3d73f7f81aea Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote <n.nethercote@gmail.com>
Date: Fri, 30 Aug 2024 13:16:08 +1000
Subject: [PATCH 1/3] Remove `#[macro_use] extern crate tracing` from rustdoc.

---
 src/librustdoc/clean/auto_trait.rs                 | 1 +
 src/librustdoc/clean/blanket_impl.rs               | 1 +
 src/librustdoc/clean/inline.rs                     | 1 +
 src/librustdoc/clean/mod.rs                        | 1 +
 src/librustdoc/clean/types.rs                      | 1 +
 src/librustdoc/clean/utils.rs                      | 1 +
 src/librustdoc/core.rs                             | 1 +
 src/librustdoc/doctest.rs                          | 1 +
 src/librustdoc/doctest/make.rs                     | 1 +
 src/librustdoc/formats/cache.rs                    | 1 +
 src/librustdoc/formats/renderer.rs                 | 1 +
 src/librustdoc/html/format.rs                      | 1 +
 src/librustdoc/html/markdown.rs                    | 1 +
 src/librustdoc/html/render/context.rs              | 1 +
 src/librustdoc/html/render/mod.rs                  | 1 +
 src/librustdoc/html/render/print_item.rs           | 1 +
 src/librustdoc/html/render/search_index.rs         | 1 +
 src/librustdoc/html/render/sidebar.rs              | 1 +
 src/librustdoc/html/sources.rs                     | 1 +
 src/librustdoc/json/mod.rs                         | 1 +
 src/librustdoc/lib.rs                              | 3 +--
 src/librustdoc/passes/calculate_doc_coverage.rs    | 1 +
 src/librustdoc/passes/check_doc_test_visibility.rs | 1 +
 src/librustdoc/passes/collect_intra_doc_links.rs   | 1 +
 src/librustdoc/passes/collect_trait_impls.rs       | 1 +
 src/librustdoc/passes/lint/bare_urls.rs            | 1 +
 src/librustdoc/passes/strip_hidden.rs              | 1 +
 src/librustdoc/passes/stripper.rs                  | 1 +
 src/librustdoc/scrape_examples.rs                  | 1 +
 src/librustdoc/visit_ast.rs                        | 1 +
 30 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/librustdoc/clean/auto_trait.rs b/src/librustdoc/clean/auto_trait.rs
index f46ffea830e68..467f349ef9a34 100644
--- a/src/librustdoc/clean/auto_trait.rs
+++ b/src/librustdoc/clean/auto_trait.rs
@@ -7,6 +7,7 @@ use rustc_span::def_id::DefId;
 use rustc_span::symbol::{kw, Symbol};
 use rustc_trait_selection::traits::auto_trait::{self, RegionTarget};
 use thin_vec::ThinVec;
+use tracing::{debug, instrument};
 
 use crate::clean::{
     self, clean_generic_param_def, clean_middle_ty, clean_predicate,
diff --git a/src/librustdoc/clean/blanket_impl.rs b/src/librustdoc/clean/blanket_impl.rs
index 48c3fb65203cc..0729a2af875c9 100644
--- a/src/librustdoc/clean/blanket_impl.rs
+++ b/src/librustdoc/clean/blanket_impl.rs
@@ -6,6 +6,7 @@ use rustc_span::def_id::DefId;
 use rustc_span::DUMMY_SP;
 use rustc_trait_selection::traits::query::evaluate_obligation::InferCtxtExt;
 use thin_vec::ThinVec;
+use tracing::{debug, instrument, trace};
 
 use crate::clean;
 use crate::clean::{
diff --git a/src/librustdoc/clean/inline.rs b/src/librustdoc/clean/inline.rs
index f8953f0ebcfb5..4e4a45b6cfb63 100644
--- a/src/librustdoc/clean/inline.rs
+++ b/src/librustdoc/clean/inline.rs
@@ -14,6 +14,7 @@ use rustc_span::def_id::LOCAL_CRATE;
 use rustc_span::hygiene::MacroKind;
 use rustc_span::symbol::{sym, Symbol};
 use thin_vec::{thin_vec, ThinVec};
+use tracing::{debug, trace};
 use {rustc_ast as ast, rustc_hir as hir};
 
 use super::Item;
diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index 5260e363dd68c..58ef900127e3b 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -52,6 +52,7 @@ use rustc_span::symbol::{kw, sym, Ident, Symbol};
 use rustc_span::ExpnKind;
 use rustc_trait_selection::traits::wf::object_region_bounds;
 use thin_vec::ThinVec;
+use tracing::{debug, instrument};
 use utils::*;
 use {rustc_ast as ast, rustc_attr as attr, rustc_hir as hir};
 
diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs
index 63d71a73cdfc8..4b5d3c802e684 100644
--- a/src/librustdoc/clean/types.rs
+++ b/src/librustdoc/clean/types.rs
@@ -31,6 +31,7 @@ use rustc_span::{FileName, Loc, DUMMY_SP};
 use rustc_target::abi::VariantIdx;
 use rustc_target::spec::abi::Abi;
 use thin_vec::ThinVec;
+use tracing::{debug, trace};
 use {rustc_ast as ast, rustc_hir as hir};
 
 pub(crate) use self::ItemKind::*;
diff --git a/src/librustdoc/clean/utils.rs b/src/librustdoc/clean/utils.rs
index 68266f3506a01..caa448cd4b394 100644
--- a/src/librustdoc/clean/utils.rs
+++ b/src/librustdoc/clean/utils.rs
@@ -11,6 +11,7 @@ use rustc_middle::mir;
 use rustc_middle::ty::{self, GenericArgKind, GenericArgsRef, TyCtxt, TypeVisitableExt};
 use rustc_span::symbol::{kw, sym, Symbol};
 use thin_vec::{thin_vec, ThinVec};
+use tracing::{debug, warn};
 use {rustc_ast as ast, rustc_hir as hir};
 
 use crate::clean::auto_trait::synthesize_auto_trait_impls;
diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs
index 08a4a3f3fb264..bcb4c3a8b70f9 100644
--- a/src/librustdoc/core.rs
+++ b/src/librustdoc/core.rs
@@ -25,6 +25,7 @@ pub(crate) use rustc_session::config::{Options, UnstableOptions};
 use rustc_session::{lint, Session};
 use rustc_span::symbol::sym;
 use rustc_span::{source_map, Span};
+use tracing::{debug, info};
 
 use crate::clean::inline::build_external_trait;
 use crate::clean::{self, ItemId};
diff --git a/src/librustdoc/doctest.rs b/src/librustdoc/doctest.rs
index 743c1ed507eeb..74f8cf1ecf598 100644
--- a/src/librustdoc/doctest.rs
+++ b/src/librustdoc/doctest.rs
@@ -26,6 +26,7 @@ use rustc_span::symbol::sym;
 use rustc_span::FileName;
 use rustc_target::spec::{Target, TargetTriple};
 use tempfile::{Builder as TempFileBuilder, TempDir};
+use tracing::debug;
 
 use self::rust::HirCollector;
 use crate::config::Options as RustdocOptions;
diff --git a/src/librustdoc/doctest/make.rs b/src/librustdoc/doctest/make.rs
index aed079e5887b0..47a4c2fe0b50f 100644
--- a/src/librustdoc/doctest/make.rs
+++ b/src/librustdoc/doctest/make.rs
@@ -14,6 +14,7 @@ use rustc_span::edition::Edition;
 use rustc_span::source_map::SourceMap;
 use rustc_span::symbol::sym;
 use rustc_span::FileName;
+use tracing::debug;
 
 use super::GlobalTestOptions;
 use crate::html::markdown::LangString;
diff --git a/src/librustdoc/formats/cache.rs b/src/librustdoc/formats/cache.rs
index 947bae99305a8..a1cb59b5679be 100644
--- a/src/librustdoc/formats/cache.rs
+++ b/src/librustdoc/formats/cache.rs
@@ -4,6 +4,7 @@ use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexSet};
 use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, DefIdSet};
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_span::Symbol;
+use tracing::debug;
 
 use crate::clean::types::ExternalLocation;
 use crate::clean::{self, ExternalCrate, ItemId, PrimitiveType};
diff --git a/src/librustdoc/formats/renderer.rs b/src/librustdoc/formats/renderer.rs
index 2535668b83f5a..cc57dca86c341 100644
--- a/src/librustdoc/formats/renderer.rs
+++ b/src/librustdoc/formats/renderer.rs
@@ -1,4 +1,5 @@
 use rustc_middle::ty::TyCtxt;
+use tracing::debug;
 
 use crate::clean;
 use crate::config::RenderOptions;
diff --git a/src/librustdoc/html/format.rs b/src/librustdoc/html/format.rs
index 5cbf8c5e19f45..bd19a2ec367c0 100644
--- a/src/librustdoc/html/format.rs
+++ b/src/librustdoc/html/format.rs
@@ -24,6 +24,7 @@ use rustc_middle::ty::TyCtxt;
 use rustc_span::symbol::kw;
 use rustc_span::{sym, Symbol};
 use rustc_target::spec::abi::Abi;
+use tracing::{debug, trace};
 use {rustc_ast as ast, rustc_hir as hir};
 
 use super::url_parts_builder::{estimate_item_path_byte_length, UrlPartsBuilder};
diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs
index 364d4e077b18b..e37c24c1438ee 100644
--- a/src/librustdoc/html/markdown.rs
+++ b/src/librustdoc/html/markdown.rs
@@ -46,6 +46,7 @@ pub(crate) use rustc_resolve::rustdoc::main_body_opts;
 use rustc_resolve::rustdoc::may_be_doc_link;
 use rustc_span::edition::Edition;
 use rustc_span::{Span, Symbol};
+use tracing::{debug, trace};
 
 use crate::clean::RenderedLink;
 use crate::doctest;
diff --git a/src/librustdoc/html/render/context.rs b/src/librustdoc/html/render/context.rs
index 0ed8921b1e8d7..19386fe5e69e6 100644
--- a/src/librustdoc/html/render/context.rs
+++ b/src/librustdoc/html/render/context.rs
@@ -12,6 +12,7 @@ use rustc_middle::ty::TyCtxt;
 use rustc_session::Session;
 use rustc_span::edition::Edition;
 use rustc_span::{sym, FileName, Symbol};
+use tracing::info;
 
 use super::print_item::{full_path, item_path, print_item};
 use super::sidebar::{print_sidebar, sidebar_module_like, Sidebar};
diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs
index 47f321a4c4a2a..fc4033f832042 100644
--- a/src/librustdoc/html/render/mod.rs
+++ b/src/librustdoc/html/render/mod.rs
@@ -57,6 +57,7 @@ use rustc_span::symbol::{sym, Symbol};
 use rustc_span::{BytePos, FileName, RealFileName, DUMMY_SP};
 use serde::ser::SerializeMap;
 use serde::{Serialize, Serializer};
+use tracing::{debug, info};
 
 pub(crate) use self::context::*;
 pub(crate) use self::span_map::{collect_spans_and_sources, LinkFromSrc};
diff --git a/src/librustdoc/html/render/print_item.rs b/src/librustdoc/html/render/print_item.rs
index d8b111471b85e..a0a72d59d123f 100644
--- a/src/librustdoc/html/render/print_item.rs
+++ b/src/librustdoc/html/render/print_item.rs
@@ -15,6 +15,7 @@ use rustc_middle::ty::{self, TyCtxt};
 use rustc_span::hygiene::MacroKind;
 use rustc_span::symbol::{kw, sym, Symbol};
 use rustc_target::abi::VariantIdx;
+use tracing::{debug, info};
 
 use super::type_layout::document_type_layout;
 use super::{
diff --git a/src/librustdoc/html/render/search_index.rs b/src/librustdoc/html/render/search_index.rs
index d7682bd1c1917..bfdf457c529d5 100644
--- a/src/librustdoc/html/render/search_index.rs
+++ b/src/librustdoc/html/render/search_index.rs
@@ -11,6 +11,7 @@ use rustc_span::sym;
 use rustc_span::symbol::{kw, Symbol};
 use serde::ser::{Serialize, SerializeSeq, SerializeStruct, Serializer};
 use thin_vec::ThinVec;
+use tracing::instrument;
 
 use crate::clean;
 use crate::clean::types::{Function, Generics, ItemId, Type, WherePredicate};
diff --git a/src/librustdoc/html/render/sidebar.rs b/src/librustdoc/html/render/sidebar.rs
index 101cc839f0988..5b9c93ef74aaa 100644
--- a/src/librustdoc/html/render/sidebar.rs
+++ b/src/librustdoc/html/render/sidebar.rs
@@ -6,6 +6,7 @@ use rustc_data_structures::fx::FxHashSet;
 use rustc_hir::def::CtorKind;
 use rustc_hir::def_id::DefIdSet;
 use rustc_middle::ty::{self, TyCtxt};
+use tracing::debug;
 
 use super::{item_ty_to_section, Context, ItemSection};
 use crate::clean;
diff --git a/src/librustdoc/html/sources.rs b/src/librustdoc/html/sources.rs
index 22f115f92cc86..ae65dd76b5fb6 100644
--- a/src/librustdoc/html/sources.rs
+++ b/src/librustdoc/html/sources.rs
@@ -11,6 +11,7 @@ use rustc_hir::def_id::LOCAL_CRATE;
 use rustc_middle::ty::TyCtxt;
 use rustc_session::Session;
 use rustc_span::{sym, FileName};
+use tracing::info;
 
 use crate::clean;
 use crate::clean::utils::has_doc_flag;
diff --git a/src/librustdoc/json/mod.rs b/src/librustdoc/json/mod.rs
index e2860292aa3ba..1b2d61a763797 100644
--- a/src/librustdoc/json/mod.rs
+++ b/src/librustdoc/json/mod.rs
@@ -22,6 +22,7 @@ use rustdoc_json_types as types;
 // the one from rustc_data_structures, as they're different types due to sysroots.
 // See #110051 and #127456 for details
 use rustdoc_json_types::FxHashMap;
+use tracing::{debug, trace};
 
 use crate::clean::types::{ExternalCrate, ExternalLocation};
 use crate::clean::ItemKind;
diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs
index e651501a184a8..f25acbe080ada 100644
--- a/src/librustdoc/lib.rs
+++ b/src/librustdoc/lib.rs
@@ -22,8 +22,6 @@
 #![allow(rustc::untranslatable_diagnostic)]
 
 extern crate thin_vec;
-#[macro_use]
-extern crate tracing;
 
 // N.B. these need `extern crate` even in 2018 edition
 // because they're loaded implicitly from the sysroot.
@@ -83,6 +81,7 @@ use rustc_interface::interface;
 use rustc_middle::ty::TyCtxt;
 use rustc_session::config::{make_crate_type_option, ErrorOutputType, RustcOptGroup};
 use rustc_session::{getopts, EarlyDiagCtxt};
+use tracing::info;
 
 use crate::clean::utils::DOC_RUST_LANG_ORG_CHANNEL;
 
diff --git a/src/librustdoc/passes/calculate_doc_coverage.rs b/src/librustdoc/passes/calculate_doc_coverage.rs
index d6eef43902ca9..1d0b41fc429c5 100644
--- a/src/librustdoc/passes/calculate_doc_coverage.rs
+++ b/src/librustdoc/passes/calculate_doc_coverage.rs
@@ -9,6 +9,7 @@ use rustc_middle::lint::LintLevelSource;
 use rustc_session::lint;
 use rustc_span::FileName;
 use serde::Serialize;
+use tracing::debug;
 
 use crate::clean;
 use crate::core::DocContext;
diff --git a/src/librustdoc/passes/check_doc_test_visibility.rs b/src/librustdoc/passes/check_doc_test_visibility.rs
index 5015d66595504..d456e8e24e6f1 100644
--- a/src/librustdoc/passes/check_doc_test_visibility.rs
+++ b/src/librustdoc/passes/check_doc_test_visibility.rs
@@ -8,6 +8,7 @@
 use rustc_hir as hir;
 use rustc_middle::lint::LintLevelSource;
 use rustc_session::lint;
+use tracing::debug;
 
 use super::Pass;
 use crate::clean;
diff --git a/src/librustdoc/passes/collect_intra_doc_links.rs b/src/librustdoc/passes/collect_intra_doc_links.rs
index ab03f620230bd..0090141287ee8 100644
--- a/src/librustdoc/passes/collect_intra_doc_links.rs
+++ b/src/librustdoc/passes/collect_intra_doc_links.rs
@@ -27,6 +27,7 @@ use rustc_span::hygiene::MacroKind;
 use rustc_span::symbol::{sym, Ident, Symbol};
 use rustc_span::BytePos;
 use smallvec::{smallvec, SmallVec};
+use tracing::{debug, info, instrument, trace};
 
 use crate::clean::utils::find_nearest_parent_module;
 use crate::clean::{self, Crate, Item, ItemLink, PrimitiveType};
diff --git a/src/librustdoc/passes/collect_trait_impls.rs b/src/librustdoc/passes/collect_trait_impls.rs
index 1f00891ffa12f..394a64df4bc41 100644
--- a/src/librustdoc/passes/collect_trait_impls.rs
+++ b/src/librustdoc/passes/collect_trait_impls.rs
@@ -6,6 +6,7 @@ use rustc_data_structures::fx::FxHashSet;
 use rustc_hir::def_id::{DefId, DefIdMap, DefIdSet, LOCAL_CRATE};
 use rustc_middle::ty;
 use rustc_span::symbol::sym;
+use tracing::debug;
 
 use super::Pass;
 use crate::clean::*;
diff --git a/src/librustdoc/passes/lint/bare_urls.rs b/src/librustdoc/passes/lint/bare_urls.rs
index a0a369a7b85e2..22051dd954db3 100644
--- a/src/librustdoc/passes/lint/bare_urls.rs
+++ b/src/librustdoc/passes/lint/bare_urls.rs
@@ -9,6 +9,7 @@ use pulldown_cmark::{Event, Parser, Tag};
 use regex::Regex;
 use rustc_errors::Applicability;
 use rustc_resolve::rustdoc::source_span_for_markdown_range;
+use tracing::trace;
 
 use crate::clean::*;
 use crate::core::DocContext;
diff --git a/src/librustdoc/passes/strip_hidden.rs b/src/librustdoc/passes/strip_hidden.rs
index 23e298571d5ce..86f14ddbe8506 100644
--- a/src/librustdoc/passes/strip_hidden.rs
+++ b/src/librustdoc/passes/strip_hidden.rs
@@ -5,6 +5,7 @@ use std::mem;
 use rustc_hir::def_id::{LocalDefId, CRATE_DEF_ID};
 use rustc_middle::ty::TyCtxt;
 use rustc_span::symbol::sym;
+use tracing::debug;
 
 use crate::clean;
 use crate::clean::utils::inherits_doc_hidden;
diff --git a/src/librustdoc/passes/stripper.rs b/src/librustdoc/passes/stripper.rs
index f807c3362c4cb..3f706ac951f25 100644
--- a/src/librustdoc/passes/stripper.rs
+++ b/src/librustdoc/passes/stripper.rs
@@ -4,6 +4,7 @@ use std::mem;
 
 use rustc_hir::def_id::DefId;
 use rustc_middle::ty::{TyCtxt, Visibility};
+use tracing::debug;
 
 use crate::clean::utils::inherits_doc_hidden;
 use crate::clean::{self, Item, ItemId, ItemIdSet};
diff --git a/src/librustdoc/scrape_examples.rs b/src/librustdoc/scrape_examples.rs
index f001fb26b81d3..9d4d203562cb4 100644
--- a/src/librustdoc/scrape_examples.rs
+++ b/src/librustdoc/scrape_examples.rs
@@ -18,6 +18,7 @@ use rustc_session::getopts;
 use rustc_span::def_id::{CrateNum, DefPathHash, LOCAL_CRATE};
 use rustc_span::edition::Edition;
 use rustc_span::{BytePos, FileName, SourceFile};
+use tracing::{debug, trace, warn};
 
 use crate::formats::renderer::FormatRenderer;
 use crate::html::render::Context;
diff --git a/src/librustdoc/visit_ast.rs b/src/librustdoc/visit_ast.rs
index d7a4a0d88ac3e..ba172f865391d 100644
--- a/src/librustdoc/visit_ast.rs
+++ b/src/librustdoc/visit_ast.rs
@@ -15,6 +15,7 @@ use rustc_span::def_id::{CRATE_DEF_ID, LOCAL_CRATE};
 use rustc_span::hygiene::MacroKind;
 use rustc_span::symbol::{kw, sym, Symbol};
 use rustc_span::Span;
+use tracing::debug;
 
 use crate::clean::cfg::Cfg;
 use crate::clean::utils::{inherits_doc_hidden, should_ignore_res};

From de02c4af61f73998bbd01cb05c5d214fc6deb384 Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote <n.nethercote@gmail.com>
Date: Fri, 30 Aug 2024 13:31:05 +1000
Subject: [PATCH 2/3] Remove `#[macro_use] extern crate tracing` from rustfmt
 helpers.

---
 src/tools/rustfmt/src/format-diff/main.rs | 4 +---
 src/tools/rustfmt/src/git-rustfmt/main.rs | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/tools/rustfmt/src/format-diff/main.rs b/src/tools/rustfmt/src/format-diff/main.rs
index f9eb70f6e0466..d8616c63df9df 100644
--- a/src/tools/rustfmt/src/format-diff/main.rs
+++ b/src/tools/rustfmt/src/format-diff/main.rs
@@ -4,12 +4,10 @@
 
 #![deny(warnings)]
 
-#[macro_use]
-extern crate tracing;
-
 use serde::{Deserialize, Serialize};
 use serde_json as json;
 use thiserror::Error;
+use tracing::debug;
 use tracing_subscriber::EnvFilter;
 
 use std::collections::HashSet;
diff --git a/src/tools/rustfmt/src/git-rustfmt/main.rs b/src/tools/rustfmt/src/git-rustfmt/main.rs
index 5674f40bef91f..b8b0432aa9595 100644
--- a/src/tools/rustfmt/src/git-rustfmt/main.rs
+++ b/src/tools/rustfmt/src/git-rustfmt/main.rs
@@ -2,9 +2,6 @@
 // `rustc_driver`.
 #![feature(rustc_private)]
 
-#[macro_use]
-extern crate tracing;
-
 use std::env;
 use std::io::stdout;
 use std::path::{Path, PathBuf};
@@ -13,6 +10,7 @@ use std::str::FromStr;
 
 use getopts::{Matches, Options};
 use rustfmt_nightly as rustfmt;
+use tracing::debug;
 use tracing_subscriber::EnvFilter;
 
 use crate::rustfmt::{load_config, CliOptions, FormatReportFormatterBuilder, Input, Session};

From ee5ec5a1966d3c77cb64fb9900b472765bf76359 Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote <n.nethercote@gmail.com>
Date: Fri, 30 Aug 2024 13:35:05 +1000
Subject: [PATCH 3/3] Remove `#[macro_use] extern crate tracing` from rustfmt.

---
 src/tools/rustfmt/src/attr.rs            | 1 +
 src/tools/rustfmt/src/chains.rs          | 1 +
 src/tools/rustfmt/src/closures.rs        | 1 +
 src/tools/rustfmt/src/comment.rs         | 1 +
 src/tools/rustfmt/src/expr.rs            | 1 +
 src/tools/rustfmt/src/formatting.rs      | 1 +
 src/tools/rustfmt/src/items.rs           | 1 +
 src/tools/rustfmt/src/lib.rs             | 4 ++--
 src/tools/rustfmt/src/macros.rs          | 1 +
 src/tools/rustfmt/src/matches.rs         | 1 +
 src/tools/rustfmt/src/missed_spans.rs    | 1 +
 src/tools/rustfmt/src/modules/visitor.rs | 1 +
 src/tools/rustfmt/src/overflow.rs        | 1 +
 src/tools/rustfmt/src/test/mod.rs        | 1 +
 src/tools/rustfmt/src/types.rs           | 1 +
 src/tools/rustfmt/src/visitor.rs         | 1 +
 16 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/tools/rustfmt/src/attr.rs b/src/tools/rustfmt/src/attr.rs
index 433b92562023f..a2c0a28d66e09 100644
--- a/src/tools/rustfmt/src/attr.rs
+++ b/src/tools/rustfmt/src/attr.rs
@@ -3,6 +3,7 @@
 use rustc_ast::ast;
 use rustc_ast::HasAttrs;
 use rustc_span::{symbol::sym, Span};
+use tracing::debug;
 
 use self::doc_comment::DocCommentFormatter;
 use crate::comment::{contains_comment, rewrite_doc_comment, CommentStyle};
diff --git a/src/tools/rustfmt/src/chains.rs b/src/tools/rustfmt/src/chains.rs
index ea23690caed57..96fbe7a963a60 100644
--- a/src/tools/rustfmt/src/chains.rs
+++ b/src/tools/rustfmt/src/chains.rs
@@ -60,6 +60,7 @@ use std::cmp::min;
 
 use rustc_ast::{ast, ptr};
 use rustc_span::{symbol, BytePos, Span};
+use tracing::debug;
 
 use crate::comment::{rewrite_comment, CharClasses, FullCodeCharKind, RichChar};
 use crate::config::{IndentStyle, Version};
diff --git a/src/tools/rustfmt/src/closures.rs b/src/tools/rustfmt/src/closures.rs
index 5bf29441b5421..b5c26235e7706 100644
--- a/src/tools/rustfmt/src/closures.rs
+++ b/src/tools/rustfmt/src/closures.rs
@@ -1,6 +1,7 @@
 use rustc_ast::{ast, ptr};
 use rustc_span::Span;
 use thin_vec::thin_vec;
+use tracing::debug;
 
 use crate::attr::get_attrs_from_stmt;
 use crate::config::lists::*;
diff --git a/src/tools/rustfmt/src/comment.rs b/src/tools/rustfmt/src/comment.rs
index 24a5a1be2c398..e76be0fd162fa 100644
--- a/src/tools/rustfmt/src/comment.rs
+++ b/src/tools/rustfmt/src/comment.rs
@@ -4,6 +4,7 @@ use std::{borrow::Cow, iter};
 
 use itertools::{multipeek, MultiPeek};
 use rustc_span::Span;
+use tracing::{debug, trace};
 
 use crate::config::Config;
 use crate::rewrite::RewriteContext;
diff --git a/src/tools/rustfmt/src/expr.rs b/src/tools/rustfmt/src/expr.rs
index c7c4b680b07fd..6ba5217bc920d 100644
--- a/src/tools/rustfmt/src/expr.rs
+++ b/src/tools/rustfmt/src/expr.rs
@@ -5,6 +5,7 @@ use itertools::Itertools;
 use rustc_ast::token::{Delimiter, Lit, LitKind};
 use rustc_ast::{ast, ptr, token, ForLoopKind, MatchKind};
 use rustc_span::{BytePos, Span};
+use tracing::debug;
 
 use crate::chains::rewrite_chain;
 use crate::closures;
diff --git a/src/tools/rustfmt/src/formatting.rs b/src/tools/rustfmt/src/formatting.rs
index 7f442230b12be..5e71fe107eb65 100644
--- a/src/tools/rustfmt/src/formatting.rs
+++ b/src/tools/rustfmt/src/formatting.rs
@@ -6,6 +6,7 @@ use std::time::{Duration, Instant};
 
 use rustc_ast::ast;
 use rustc_span::Span;
+use tracing::debug;
 
 use self::newline_style::apply_newline_style;
 use crate::comment::{CharClasses, FullCodeCharKind};
diff --git a/src/tools/rustfmt/src/items.rs b/src/tools/rustfmt/src/items.rs
index eb11604b2771f..cbf7ce90e37a3 100644
--- a/src/tools/rustfmt/src/items.rs
+++ b/src/tools/rustfmt/src/items.rs
@@ -7,6 +7,7 @@ use regex::Regex;
 use rustc_ast::visit;
 use rustc_ast::{ast, ptr};
 use rustc_span::{symbol, BytePos, Span, DUMMY_SP};
+use tracing::debug;
 
 use crate::attr::filter_inline_attrs;
 use crate::comment::{
diff --git a/src/tools/rustfmt/src/lib.rs b/src/tools/rustfmt/src/lib.rs
index ff2b14af07866..4263a49fd720d 100644
--- a/src/tools/rustfmt/src/lib.rs
+++ b/src/tools/rustfmt/src/lib.rs
@@ -5,8 +5,8 @@
 #![allow(clippy::match_like_matches_macro)]
 #![allow(unreachable_pub)]
 
-#[macro_use]
-extern crate tracing;
+// #[macro_use]
+// extern crate tracing;
 
 // N.B. these crates are loaded from the sysroot, so they need extern crate.
 extern crate rustc_ast;
diff --git a/src/tools/rustfmt/src/macros.rs b/src/tools/rustfmt/src/macros.rs
index a0582b061c050..b14b74a493814 100644
--- a/src/tools/rustfmt/src/macros.rs
+++ b/src/tools/rustfmt/src/macros.rs
@@ -20,6 +20,7 @@ use rustc_span::{
     symbol::{self, kw},
     BytePos, Span, Symbol, DUMMY_SP,
 };
+use tracing::debug;
 
 use crate::comment::{
     contains_comment, CharClasses, FindUncommented, FullCodeCharKind, LineClasses,
diff --git a/src/tools/rustfmt/src/matches.rs b/src/tools/rustfmt/src/matches.rs
index e4fa077073c5b..30bf6271b2eba 100644
--- a/src/tools/rustfmt/src/matches.rs
+++ b/src/tools/rustfmt/src/matches.rs
@@ -4,6 +4,7 @@ use std::iter::repeat;
 
 use rustc_ast::{ast, ptr, MatchKind};
 use rustc_span::{BytePos, Span};
+use tracing::debug;
 
 use crate::comment::{combine_strs_with_missing_comments, rewrite_comment, FindUncommented};
 use crate::config::lists::*;
diff --git a/src/tools/rustfmt/src/missed_spans.rs b/src/tools/rustfmt/src/missed_spans.rs
index b1a7769c21bf4..56adb2e5e6916 100644
--- a/src/tools/rustfmt/src/missed_spans.rs
+++ b/src/tools/rustfmt/src/missed_spans.rs
@@ -1,4 +1,5 @@
 use rustc_span::{BytePos, Pos, Span};
+use tracing::debug;
 
 use crate::comment::{is_last_comment_block, rewrite_comment, CodeCharKind, CommentCodeSlices};
 use crate::config::file_lines::FileLines;
diff --git a/src/tools/rustfmt/src/modules/visitor.rs b/src/tools/rustfmt/src/modules/visitor.rs
index 3e05b6d0c5d49..8b46899eaf2e2 100644
--- a/src/tools/rustfmt/src/modules/visitor.rs
+++ b/src/tools/rustfmt/src/modules/visitor.rs
@@ -1,6 +1,7 @@
 use rustc_ast::ast;
 use rustc_ast::visit::Visitor;
 use rustc_span::Symbol;
+use tracing::debug;
 
 use crate::attr::MetaVisitor;
 use crate::parse::macros::cfg_if::parse_cfg_if;
diff --git a/src/tools/rustfmt/src/overflow.rs b/src/tools/rustfmt/src/overflow.rs
index a1de71a35be84..cdb735be8a4ce 100644
--- a/src/tools/rustfmt/src/overflow.rs
+++ b/src/tools/rustfmt/src/overflow.rs
@@ -6,6 +6,7 @@ use itertools::Itertools;
 use rustc_ast::token::Delimiter;
 use rustc_ast::{ast, ptr};
 use rustc_span::Span;
+use tracing::debug;
 
 use crate::closures;
 use crate::config::Version;
diff --git a/src/tools/rustfmt/src/test/mod.rs b/src/tools/rustfmt/src/test/mod.rs
index 7c563801c3243..286e8b8760a97 100644
--- a/src/tools/rustfmt/src/test/mod.rs
+++ b/src/tools/rustfmt/src/test/mod.rs
@@ -16,6 +16,7 @@ use crate::source_file;
 use crate::{is_nightly_channel, FormatReport, FormatReportFormatterBuilder, Input, Session};
 
 use rustfmt_config_proc_macro::nightly_only_test;
+use tracing::{debug, warn};
 
 mod configuration_snippet;
 mod mod_resolver;
diff --git a/src/tools/rustfmt/src/types.rs b/src/tools/rustfmt/src/types.rs
index c826547e9d001..875c61113c528 100644
--- a/src/tools/rustfmt/src/types.rs
+++ b/src/tools/rustfmt/src/types.rs
@@ -3,6 +3,7 @@ use std::ops::Deref;
 use rustc_ast::ast::{self, FnRetTy, Mutability, Term};
 use rustc_ast::ptr;
 use rustc_span::{symbol::kw, BytePos, Pos, Span};
+use tracing::debug;
 
 use crate::comment::{combine_strs_with_missing_comments, contains_comment};
 use crate::config::lists::*;
diff --git a/src/tools/rustfmt/src/visitor.rs b/src/tools/rustfmt/src/visitor.rs
index 1de9f5a952493..ac68fc5fecf34 100644
--- a/src/tools/rustfmt/src/visitor.rs
+++ b/src/tools/rustfmt/src/visitor.rs
@@ -4,6 +4,7 @@ use std::rc::Rc;
 use rustc_ast::{ast, token::Delimiter, visit};
 use rustc_data_structures::sync::Lrc;
 use rustc_span::{symbol, BytePos, Pos, Span};
+use tracing::debug;
 
 use crate::attr::*;
 use crate::comment::{contains_comment, rewrite_comment, CodeCharKind, CommentCodeSlices};