Remove #[macro_use] extern crate tracing from rustdoc.

Author: nnethercote

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,

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::{

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;

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};
 

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::*;

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;

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};

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;

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;

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};

src/librustdoc/formats/renderer.rs

@@ -1,4 +1,5 @@
 use rustc_middle::ty::TyCtxt;
+use tracing::debug;
 
 use crate::clean;
 use crate::config::RenderOptions;

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};

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;

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};

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};

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::{

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};

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;

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;

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;

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;
 

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;

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;

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};

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::*;

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;

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;

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};

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;

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};