diff --git a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs
index f13fb842bb601..99ca4c637bd2e 100644
--- a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs
+++ b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs
@@ -333,7 +333,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                 let local_decl = &self.body.local_decls[local];
                 assert_eq!(local_decl.mutability, Mutability::Not);
 
-                err.span_label(span, format!("cannot {ACT}", ACT = act));
+                err.span_label(span, format!("cannot {act}"));
                 err.span_suggestion(
                     local_decl.source_info.span,
                     "consider changing this to be mutable",
@@ -357,7 +357,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
 
                 let captured_place = &self.upvars[upvar_index.index()].place;
 
-                err.span_label(span, format!("cannot {ACT}", ACT = act));
+                err.span_label(span, format!("cannot {act}"));
 
                 let upvar_hir_id = captured_place.get_root_variable();
 
@@ -397,7 +397,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                     .span_to_snippet(span)
                     .map_or(false, |snippet| snippet.starts_with("&mut ")) =>
             {
-                err.span_label(span, format!("cannot {ACT}", ACT = act));
+                err.span_label(span, format!("cannot {act}"));
                 err.span_suggestion(
                     span,
                     "try removing `&mut` here",
@@ -409,7 +409,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
             PlaceRef { local, projection: [ProjectionElem::Deref] }
                 if self.body.local_decls[local].is_ref_for_guard() =>
             {
-                err.span_label(span, format!("cannot {ACT}", ACT = act));
+                err.span_label(span, format!("cannot {act}"));
                 err.note(
                     "variables bound in patterns are immutable until the end of the pattern guard",
                 );
@@ -537,7 +537,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                             Some((true, err_help_span, suggested_code)) => {
                                 let (is_trait_sig, local_trait) = self.is_error_in_trait(local);
                                 if !is_trait_sig {
-                                    err.span_suggestion(
+                                    err.span_suggestion_verbose(
                                         err_help_span,
                                         &format!(
                                             "consider changing this to be a mutable {pointer_desc}"
@@ -546,7 +546,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                                         Applicability::MachineApplicable,
                                     );
                                 } else if let Some(x) = local_trait {
-                                    err.span_suggestion(
+                                    err.span_suggestion_verbose(
                                         x,
                                         &format!(
                                             "consider changing that to be a mutable {pointer_desc}"
@@ -569,24 +569,15 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                         err.span_label(
                             span,
                             format!(
-                                "`{NAME}` is a `{SIGIL}` {DESC}, \
-                                so the data it refers to cannot be {ACTED_ON}",
-                                NAME = name,
-                                SIGIL = pointer_sigil,
-                                DESC = pointer_desc,
-                                ACTED_ON = acted_on
+                                "`{name}` is a `{pointer_sigil}` {pointer_desc}, \
+                                 so the data it refers to cannot be {acted_on}",
                             ),
                         );
                     }
                     _ => {
                         err.span_label(
                             span,
-                            format!(
-                                "cannot {ACT} through `{SIGIL}` {DESC}",
-                                ACT = act,
-                                SIGIL = pointer_sigil,
-                                DESC = pointer_desc
-                            ),
+                            format!("cannot {act} through `{pointer_sigil}` {pointer_desc}"),
                         );
                     }
                 }
@@ -605,13 +596,13 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
                     Some(BorrowedContentSource::OverloadedDeref(ty)) => {
                         err.help(&format!(
                             "trait `DerefMut` is required to modify through a dereference, \
-                                but it is not implemented for `{ty}`",
+                             but it is not implemented for `{ty}`",
                         ));
                     }
                     Some(BorrowedContentSource::OverloadedIndex(ty)) => {
                         err.help(&format!(
                             "trait `IndexMut` is required to modify indexed content, \
-                                but it is not implemented for `{ty}`",
+                             but it is not implemented for `{ty}`",
                         ));
                         self.suggest_map_index_mut_alternatives(ty, &mut err, span);
                     }
@@ -620,7 +611,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
             }
 
             _ => {
-                err.span_label(span, format!("cannot {ACT}", ACT = act));
+                err.span_label(span, format!("cannot {act}"));
             }
         }
 
diff --git a/compiler/rustc_error_codes/src/error_codes.rs b/compiler/rustc_error_codes/src/error_codes.rs
index 5a1670f06fc64..3fba2cf57494d 100644
--- a/compiler/rustc_error_codes/src/error_codes.rs
+++ b/compiler/rustc_error_codes/src/error_codes.rs
@@ -598,7 +598,7 @@ E0791: include_str!("./error_codes/E0791.md"),
 //  E0421, // merged into 531
 //  E0427, // merged into 530
 //  E0456, // plugin `..` is not available for triple `..`
-    E0465, // multiple .. candidates for `..` found
+//  E0465, // removed: merged with E0464
 //  E0467, // removed
 //  E0470, // removed
 //  E0471, // constant evaluation error (in pattern)
diff --git a/compiler/rustc_error_messages/locales/en-US/metadata.ftl b/compiler/rustc_error_messages/locales/en-US/metadata.ftl
index b3ca540417da7..b42b228bde9fa 100644
--- a/compiler/rustc_error_messages/locales/en-US/metadata.ftl
+++ b/compiler/rustc_error_messages/locales/en-US/metadata.ftl
@@ -196,11 +196,7 @@ metadata_extern_location_not_file =
     extern location for {$crate_name} is not a file: {$location}
 
 metadata_multiple_candidates =
-    multiple {$flavor} candidates for `{$crate_name}` found
-
-metadata_multiple_matching_crates =
-    multiple matching crates for `{$crate_name}`
-    .note = candidates:{$candidates}
+    multiple candidates for `{$flavor}` dependency `{$crate_name}` found
 
 metadata_symbol_conflicts_current =
     the current crate is indistinguishable from one of its dependencies: it has the same crate-name `{$crate_name}` and was compiled with the same `-C metadata` arguments. This will result in symbol conflicts between the two.
diff --git a/compiler/rustc_metadata/src/errors.rs b/compiler/rustc_metadata/src/errors.rs
index de2a879f1d737..1e08e95c01f84 100644
--- a/compiler/rustc_metadata/src/errors.rs
+++ b/compiler/rustc_metadata/src/errors.rs
@@ -486,25 +486,15 @@ impl IntoDiagnostic<'_> for MultipleCandidates {
         let mut diag = handler.struct_err(rustc_errors::fluent::metadata_multiple_candidates);
         diag.set_arg("crate_name", self.crate_name);
         diag.set_arg("flavor", self.flavor);
-        diag.code(error_code!(E0465));
+        diag.code(error_code!(E0464));
         diag.set_span(self.span);
         for (i, candidate) in self.candidates.iter().enumerate() {
-            diag.span_note(self.span, &format!("candidate #{}: {}", i + 1, candidate.display()));
+            diag.note(&format!("candidate #{}: {}", i + 1, candidate.display()));
         }
         diag
     }
 }
 
-#[derive(Diagnostic)]
-#[diag(metadata_multiple_matching_crates, code = "E0464")]
-#[note]
-pub struct MultipleMatchingCrates {
-    #[primary_span]
-    pub span: Span,
-    pub crate_name: Symbol,
-    pub candidates: String,
-}
-
 #[derive(Diagnostic)]
 #[diag(metadata_symbol_conflicts_current, code = "E0519")]
 pub struct SymbolConflictsCurrent {
diff --git a/compiler/rustc_metadata/src/locator.rs b/compiler/rustc_metadata/src/locator.rs
index dda5f4bac4289..92dc5bd41cbab 100644
--- a/compiler/rustc_metadata/src/locator.rs
+++ b/compiler/rustc_metadata/src/locator.rs
@@ -216,9 +216,8 @@ use crate::creader::Library;
 use crate::errors::{
     CannotFindCrate, CrateLocationUnknownType, DlError, ExternLocationNotExist,
     ExternLocationNotFile, FoundStaticlib, IncompatibleRustc, InvalidMetadataFiles,
-    LibFilenameForm, MultipleCandidates, MultipleMatchingCrates, NewerCrateVersion,
-    NoCrateWithTriple, NoDylibPlugin, NonAsciiName, StableCrateIdCollision, SymbolConflictsCurrent,
-    SymbolConflictsOthers,
+    LibFilenameForm, MultipleCandidates, NewerCrateVersion, NoCrateWithTriple, NoDylibPlugin,
+    NonAsciiName, StableCrateIdCollision, SymbolConflictsCurrent, SymbolConflictsOthers,
 };
 use crate::rmeta::{rustc_version, MetadataBlob, METADATA_HEADER};
 
@@ -240,7 +239,6 @@ use rustc_target::spec::{Target, TargetTriple};
 
 use snap::read::FrameDecoder;
 use std::borrow::Cow;
-use std::fmt::Write as _;
 use std::io::{Read, Result as IoResult, Write};
 use std::path::{Path, PathBuf};
 use std::{cmp, fmt, fs};
@@ -482,7 +480,22 @@ impl<'a> CrateLocator<'a> {
         match libraries.len() {
             0 => Ok(None),
             1 => Ok(Some(libraries.into_iter().next().unwrap().1)),
-            _ => Err(CrateError::MultipleMatchingCrates(self.crate_name, libraries)),
+            _ => {
+                let mut libraries: Vec<_> = libraries.into_values().collect();
+
+                libraries.sort_by_cached_key(|lib| lib.source.paths().next().unwrap().clone());
+                let candidates = libraries
+                    .iter()
+                    .map(|lib| lib.source.paths().next().unwrap().clone())
+                    .collect::<Vec<_>>();
+
+                Err(CrateError::MultipleCandidates(
+                    self.crate_name,
+                    // these are the same for all candidates
+                    get_flavor_from_path(candidates.first().unwrap()),
+                    candidates,
+                ))
+            }
         }
     }
 
@@ -882,17 +895,22 @@ pub fn list_file_metadata(
     metadata_loader: &dyn MetadataLoader,
     out: &mut dyn Write,
 ) -> IoResult<()> {
+    let flavor = get_flavor_from_path(path);
+    match get_metadata_section(target, flavor, path, metadata_loader) {
+        Ok(metadata) => metadata.list_crate_metadata(out),
+        Err(msg) => write!(out, "{}\n", msg),
+    }
+}
+
+fn get_flavor_from_path(path: &Path) -> CrateFlavor {
     let filename = path.file_name().unwrap().to_str().unwrap();
-    let flavor = if filename.ends_with(".rlib") {
+
+    if filename.ends_with(".rlib") {
         CrateFlavor::Rlib
     } else if filename.ends_with(".rmeta") {
         CrateFlavor::Rmeta
     } else {
         CrateFlavor::Dylib
-    };
-    match get_metadata_section(target, flavor, path, metadata_loader) {
-        Ok(metadata) => metadata.list_crate_metadata(out),
-        Err(msg) => write!(out, "{}\n", msg),
     }
 }
 
@@ -931,7 +949,6 @@ pub(crate) enum CrateError {
     ExternLocationNotExist(Symbol, PathBuf),
     ExternLocationNotFile(Symbol, PathBuf),
     MultipleCandidates(Symbol, CrateFlavor, Vec<PathBuf>),
-    MultipleMatchingCrates(Symbol, FxHashMap<Svh, Library>),
     SymbolConflictsCurrent(Symbol),
     SymbolConflictsOthers(Symbol),
     StableCrateIdCollision(Symbol, Symbol),
@@ -972,37 +989,7 @@ impl CrateError {
                 sess.emit_err(ExternLocationNotFile { span, crate_name, location: &loc });
             }
             CrateError::MultipleCandidates(crate_name, flavor, candidates) => {
-                sess.emit_err(MultipleCandidates { span, flavor: flavor, crate_name, candidates });
-            }
-            CrateError::MultipleMatchingCrates(crate_name, libraries) => {
-                let mut libraries: Vec<_> = libraries.into_values().collect();
-                // Make ordering of candidates deterministic.
-                // This has to `clone()` to work around lifetime restrictions with `sort_by_key()`.
-                // `sort_by()` could be used instead, but this is in the error path,
-                // so the performance shouldn't matter.
-                libraries.sort_by_cached_key(|lib| lib.source.paths().next().unwrap().clone());
-                let candidates = libraries
-                    .iter()
-                    .map(|lib| {
-                        let crate_name = lib.metadata.get_root().name();
-                        let crate_name = crate_name.as_str();
-                        let mut paths = lib.source.paths();
-
-                        // This `unwrap()` should be okay because there has to be at least one
-                        // source file. `CrateSource`'s docs confirm that too.
-                        let mut s = format!(
-                            "\ncrate `{}`: {}",
-                            crate_name,
-                            paths.next().unwrap().display()
-                        );
-                        let padding = 8 + crate_name.len();
-                        for path in paths {
-                            write!(s, "\n{:>padding$}", path.display(), padding = padding).unwrap();
-                        }
-                        s
-                    })
-                    .collect::<String>();
-                sess.emit_err(MultipleMatchingCrates { span, crate_name, candidates });
+                sess.emit_err(MultipleCandidates { span, crate_name, flavor, candidates });
             }
             CrateError::SymbolConflictsCurrent(root_name) => {
                 sess.emit_err(SymbolConflictsCurrent { span, crate_name: root_name });
diff --git a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs
index 493e31a688fcc..e9b85705086b5 100644
--- a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs
+++ b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs
@@ -164,6 +164,7 @@ fn encode_const<'tcx>(
 
 /// Encodes a FnSig using the Itanium C++ ABI with vendor extended type qualifiers and types for
 /// Rust types that are not used at the FFI boundary.
+#[instrument(level = "trace", skip(tcx, dict))]
 fn encode_fnsig<'tcx>(
     tcx: TyCtxt<'tcx>,
     fn_sig: &FnSig<'tcx>,
@@ -653,6 +654,7 @@ fn encode_ty<'tcx>(
 // Transforms a ty:Ty for being encoded and used in the substitution dictionary. It transforms all
 // c_void types into unit types unconditionally, and generalizes all pointers if
 // TransformTyOptions::GENERALIZE_POINTERS option is set.
+#[instrument(level = "trace", skip(tcx))]
 fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptions) -> Ty<'tcx> {
     let mut ty = ty;
 
@@ -698,7 +700,7 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio
                     !is_zst
                 });
                 if let Some(field) = field {
-                    let ty0 = tcx.type_of(field.did);
+                    let ty0 = tcx.bound_type_of(field.did).subst(tcx, substs);
                     // Generalize any repr(transparent) user-defined type that is either a pointer
                     // or reference, and either references itself or any other type that contains or
                     // references itself, to avoid a reference cycle.
@@ -827,6 +829,7 @@ fn transform_substs<'tcx>(
 
 /// Returns a type metadata identifier for the specified FnAbi using the Itanium C++ ABI with vendor
 /// extended type qualifiers and types for Rust types that are not used at the FFI boundary.
+#[instrument(level = "trace", skip(tcx))]
 pub fn typeid_for_fnabi<'tcx>(
     tcx: TyCtxt<'tcx>,
     fn_abi: &FnAbi<'tcx, Ty<'tcx>>,
diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
index 707e4169002d9..66bc0f023b6c9 100644
--- a/src/bootstrap/builder.rs
+++ b/src/bootstrap/builder.rs
@@ -97,18 +97,36 @@ impl RunConfig<'_> {
         self.builder.build.build
     }
 
-    /// Return a `-p=x -p=y` string suitable for passing to a cargo invocation.
+    /// Return a list of crate names selected by `run.paths`.
     pub fn cargo_crates_in_set(&self) -> Interned<Vec<String>> {
         let mut crates = Vec::new();
         for krate in &self.paths {
             let path = krate.assert_single_path();
             let crate_name = self.builder.crate_paths[&path.path];
-            crates.push(format!("-p={crate_name}"));
+            crates.push(crate_name.to_string());
         }
         INTERNER.intern_list(crates)
     }
 }
 
+/// A description of the crates in this set, suitable for passing to `builder.info`.
+///
+/// `crates` should be generated by [`RunConfig::cargo_crates_in_set`].
+pub fn crate_description(crates: &[impl AsRef<str>]) -> String {
+    if crates.is_empty() {
+        return "".into();
+    }
+
+    let mut descr = String::from(" {");
+    descr.push_str(crates[0].as_ref());
+    for krate in &crates[1..] {
+        descr.push_str(", ");
+        descr.push_str(krate.as_ref());
+    }
+    descr.push('}');
+    descr
+}
+
 struct StepDescription {
     default: bool,
     only_hosts: bool,
diff --git a/src/bootstrap/check.rs b/src/bootstrap/check.rs
index 2e1bd8d6d1f6d..32e5d414061ec 100644
--- a/src/bootstrap/check.rs
+++ b/src/bootstrap/check.rs
@@ -99,19 +99,13 @@ impl Step for Std {
             cargo_subcommand(builder.kind),
         );
         std_cargo(builder, target, compiler.stage, &mut cargo);
+        cargo.args(args(builder));
 
         builder.info(&format!(
-            "Checking stage{} std artifacts ({} -> {})",
+            "Checking stage{} library artifacts ({} -> {})",
             builder.top_stage, &compiler.host, target
         ));
-        run_cargo(
-            builder,
-            cargo,
-            args(builder),
-            &libstd_stamp(builder, compiler, target),
-            vec![],
-            true,
-        );
+        run_cargo(builder, cargo, &libstd_stamp(builder, compiler, target), vec![], true);
 
         // We skip populating the sysroot in non-zero stage because that'll lead
         // to rlib/rmeta conflicts if std gets built during this session.
@@ -155,19 +149,13 @@ impl Step for Std {
         for krate in builder.in_tree_crates("test", Some(target)) {
             cargo.arg("-p").arg(krate.name);
         }
+        cargo.args(args(builder));
 
         builder.info(&format!(
-            "Checking stage{} std test/bench/example targets ({} -> {})",
+            "Checking stage{} library test/bench/example targets ({} -> {})",
             builder.top_stage, &compiler.host, target
         ));
-        run_cargo(
-            builder,
-            cargo,
-            args(builder),
-            &libstd_test_stamp(builder, compiler, target),
-            vec![],
-            true,
-        );
+        run_cargo(builder, cargo, &libstd_test_stamp(builder, compiler, target), vec![], true);
     }
 }
 
@@ -231,19 +219,13 @@ impl Step for Rustc {
         for krate in builder.in_tree_crates("rustc-main", Some(target)) {
             cargo.arg("-p").arg(krate.name);
         }
+        cargo.args(args(builder));
 
         builder.info(&format!(
             "Checking stage{} compiler artifacts ({} -> {})",
             builder.top_stage, &compiler.host, target
         ));
-        run_cargo(
-            builder,
-            cargo,
-            args(builder),
-            &librustc_stamp(builder, compiler, target),
-            vec![],
-            true,
-        );
+        run_cargo(builder, cargo, &librustc_stamp(builder, compiler, target), vec![], true);
 
         let libdir = builder.sysroot_libdir(compiler, target);
         let hostdir = builder.sysroot_libdir(compiler, compiler.host);
@@ -290,6 +272,7 @@ impl Step for CodegenBackend {
             .arg("--manifest-path")
             .arg(builder.src.join(format!("compiler/rustc_codegen_{}/Cargo.toml", backend)));
         rustc_cargo_env(builder, &mut cargo, target);
+        cargo.args(args(builder));
 
         builder.info(&format!(
             "Checking stage{} {} artifacts ({} -> {})",
@@ -299,7 +282,6 @@ impl Step for CodegenBackend {
         run_cargo(
             builder,
             cargo,
-            args(builder),
             &codegen_backend_stamp(builder, compiler, target, backend),
             vec![],
             true,
@@ -355,11 +337,13 @@ impl Step for RustAnalyzer {
             cargo.arg("--benches");
         }
 
+        cargo.args(args(builder));
+
         builder.info(&format!(
             "Checking stage{} {} artifacts ({} -> {})",
             compiler.stage, "rust-analyzer", &compiler.host.triple, target.triple
         ));
-        run_cargo(builder, cargo, args(builder), &stamp(builder, compiler, target), vec![], true);
+        run_cargo(builder, cargo, &stamp(builder, compiler, target), vec![], true);
 
         /// Cargo's output path in a given stage, compiled by a particular
         /// compiler for the specified target.
@@ -413,6 +397,8 @@ macro_rules! tool_check_step {
                     cargo.arg("--all-targets");
                 }
 
+                cargo.args(args(builder));
+
                 // Enable internal lints for clippy and rustdoc
                 // NOTE: this doesn't enable lints for any other tools unless they explicitly add `#![warn(rustc::internal)]`
                 // See https://github.com/rust-lang/rust/pull/80573#issuecomment-754010776
@@ -428,7 +414,6 @@ macro_rules! tool_check_step {
                 run_cargo(
                     builder,
                     cargo,
-                    args(builder),
                     &stamp(builder, compiler, target),
                     vec![],
                     true,
diff --git a/src/bootstrap/clean.rs b/src/bootstrap/clean.rs
index 8e363ee1290ee..468efc1114c43 100644
--- a/src/bootstrap/clean.rs
+++ b/src/bootstrap/clean.rs
@@ -9,11 +9,10 @@ use std::fs;
 use std::io::{self, ErrorKind};
 use std::path::Path;
 
-use crate::builder::{Builder, RunConfig, ShouldRun, Step};
+use crate::builder::{crate_description, Builder, RunConfig, ShouldRun, Step};
 use crate::cache::Interned;
-use crate::config::TargetSelection;
 use crate::util::t;
-use crate::{Build, Mode, Subcommand};
+use crate::{Build, Compiler, Mode, Subcommand};
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct CleanAll {}
@@ -40,7 +39,7 @@ macro_rules! clean_crate_tree {
     ( $( $name:ident, $mode:path, $root_crate:literal);+ $(;)? ) => { $(
         #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
         pub struct $name {
-            target: TargetSelection,
+            compiler: Compiler,
             crates: Interned<Vec<String>>,
         }
 
@@ -54,22 +53,21 @@ macro_rules! clean_crate_tree {
 
             fn make_run(run: RunConfig<'_>) {
                 let builder = run.builder;
-                if builder.top_stage != 0 {
-                    panic!("non-stage-0 clean not supported for individual crates");
-                }
-                builder.ensure(Self { crates: run.cargo_crates_in_set(), target: run.target });
+                let compiler = builder.compiler(builder.top_stage, run.target);
+                builder.ensure(Self { crates: run.cargo_crates_in_set(), compiler });
             }
 
             fn run(self, builder: &Builder<'_>) -> Self::Output {
-                let compiler = builder.compiler(0, self.target);
-                let mut cargo = builder.bare_cargo(compiler, $mode, self.target, "clean");
+                let compiler = self.compiler;
+                let target = compiler.host;
+                let mut cargo = builder.bare_cargo(compiler, $mode, target, "clean");
                 for krate in &*self.crates {
                     cargo.arg(krate);
                 }
 
                 builder.info(&format!(
-                    "Cleaning stage{} {} artifacts ({} -> {})",
-                    compiler.stage, stringify!($name).to_lowercase(), &compiler.host, self.target
+                    "Cleaning{} stage{} {} artifacts ({} -> {})",
+                    crate_description(&self.crates), compiler.stage, stringify!($name).to_lowercase(), &compiler.host, target,
                 ));
 
                 // NOTE: doesn't use `run_cargo` because we don't want to save a stamp file,
diff --git a/src/bootstrap/compile.rs b/src/bootstrap/compile.rs
index 1030247b890c3..f9a04f2e91dbf 100644
--- a/src/bootstrap/compile.rs
+++ b/src/bootstrap/compile.rs
@@ -18,6 +18,7 @@ use std::str;
 
 use serde::Deserialize;
 
+use crate::builder::crate_description;
 use crate::builder::Cargo;
 use crate::builder::{Builder, Kind, RunConfig, ShouldRun, Step};
 use crate::cache::{Interned, INTERNER};
@@ -110,7 +111,10 @@ impl Step for Std {
         let compiler_to_use = builder.compiler_for(compiler.stage, compiler.host, target);
         if compiler_to_use != compiler {
             builder.ensure(Std::new(compiler_to_use, target));
-            builder.info(&format!("Uplifting stage1 std ({} -> {})", compiler_to_use.host, target));
+            builder.info(&format!(
+                "Uplifting stage1 library ({} -> {})",
+                compiler_to_use.host, target
+            ));
 
             // Even if we're not building std this stage, the new sysroot must
             // still contain the third party objects needed by various targets.
@@ -126,19 +130,18 @@ impl Step for Std {
 
         let mut cargo = builder.cargo(compiler, Mode::Std, SourceType::InTree, target, "build");
         std_cargo(builder, target, compiler.stage, &mut cargo);
+        for krate in &*self.crates {
+            cargo.arg("-p").arg(krate);
+        }
 
         builder.info(&format!(
-            "Building stage{} std artifacts ({} -> {})",
-            compiler.stage, &compiler.host, target
+            "Building{} stage{} library artifacts ({} -> {})",
+            crate_description(&self.crates),
+            compiler.stage,
+            &compiler.host,
+            target,
         ));
-        run_cargo(
-            builder,
-            cargo,
-            self.crates.to_vec(),
-            &libstd_stamp(builder, compiler, target),
-            target_deps,
-            false,
-        );
+        run_cargo(builder, cargo, &libstd_stamp(builder, compiler, target), target_deps, false);
 
         builder.ensure(StdLink::from_std(
             self,
@@ -425,7 +428,7 @@ impl Step for StdLink {
         let target_compiler = self.target_compiler;
         let target = self.target;
         builder.info(&format!(
-            "Copying stage{} std from stage{} ({} -> {} / {})",
+            "Copying stage{} library from stage{} ({} -> {} / {})",
             target_compiler.stage, compiler.stage, &compiler.host, target_compiler.host, target
         ));
         let libdir = builder.sysroot_libdir(target_compiler, target);
@@ -714,18 +717,18 @@ impl Step for Rustc {
             }
         }
 
+        for krate in &*self.crates {
+            cargo.arg("-p").arg(krate);
+        }
+
         builder.info(&format!(
-            "Building stage{} compiler artifacts ({} -> {})",
-            compiler.stage, &compiler.host, target
+            "Building{} stage{} compiler artifacts ({} -> {})",
+            crate_description(&self.crates),
+            compiler.stage,
+            &compiler.host,
+            target,
         ));
-        run_cargo(
-            builder,
-            cargo,
-            self.crates.to_vec(),
-            &librustc_stamp(builder, compiler, target),
-            vec![],
-            false,
-        );
+        run_cargo(builder, cargo, &librustc_stamp(builder, compiler, target), vec![], false);
 
         builder.ensure(RustcLink::from_rustc(
             self,
@@ -981,7 +984,7 @@ impl Step for CodegenBackend {
             "Building stage{} codegen backend {} ({} -> {})",
             compiler.stage, backend, &compiler.host, target
         ));
-        let files = run_cargo(builder, cargo, vec![], &tmp_stamp, vec![], false);
+        let files = run_cargo(builder, cargo, &tmp_stamp, vec![], false);
         if builder.config.dry_run() {
             return;
         }
@@ -1405,7 +1408,6 @@ pub fn add_to_sysroot(
 pub fn run_cargo(
     builder: &Builder<'_>,
     cargo: Cargo,
-    tail_args: Vec<String>,
     stamp: &Path,
     additional_target_deps: Vec<(PathBuf, DependencyType)>,
     is_check: bool,
@@ -1431,7 +1433,7 @@ pub fn run_cargo(
     // files we need to probe for later.
     let mut deps = Vec::new();
     let mut toplevel = Vec::new();
-    let ok = stream_cargo(builder, cargo, tail_args, &mut |msg| {
+    let ok = stream_cargo(builder, cargo, &mut |msg| {
         let (filenames, crate_types) = match msg {
             CargoMessage::CompilerArtifact {
                 filenames,
@@ -1546,7 +1548,6 @@ pub fn run_cargo(
 pub fn stream_cargo(
     builder: &Builder<'_>,
     cargo: Cargo,
-    tail_args: Vec<String>,
     cb: &mut dyn FnMut(CargoMessage<'_>),
 ) -> bool {
     let mut cargo = Command::from(cargo);
@@ -1566,10 +1567,6 @@ pub fn stream_cargo(
     }
     cargo.arg("--message-format").arg(message_format).stdout(Stdio::piped());
 
-    for arg in tail_args {
-        cargo.arg(arg);
-    }
-
     builder.verbose(&format!("running: {:?}", cargo));
     let mut child = match cargo.spawn() {
         Ok(child) => child,
diff --git a/src/bootstrap/doc.rs b/src/bootstrap/doc.rs
index 3f43c68d2e082..9bad9046ecc2c 100644
--- a/src/bootstrap/doc.rs
+++ b/src/bootstrap/doc.rs
@@ -12,6 +12,7 @@ use std::fs;
 use std::io;
 use std::path::{Path, PathBuf};
 
+use crate::builder::crate_description;
 use crate::builder::{Builder, Compiler, Kind, RunConfig, ShouldRun, Step};
 use crate::cache::{Interned, INTERNER};
 use crate::compile;
@@ -558,7 +559,8 @@ fn doc_std(
     requested_crates: &[String],
 ) {
     builder.info(&format!(
-        "Documenting stage{} std ({}) in {} format",
+        "Documenting{} stage{} library ({}) in {} format",
+        crate_description(requested_crates),
         stage,
         target,
         format.as_str()
diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index c8b4134391e5f..d5bec268a4567 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -11,6 +11,7 @@ use std::iter;
 use std::path::{Path, PathBuf};
 use std::process::{Command, Stdio};
 
+use crate::builder::crate_description;
 use crate::builder::{Builder, Compiler, Kind, RunConfig, ShouldRun, Step};
 use crate::cache::Interned;
 use crate::compile;
@@ -2154,8 +2155,12 @@ impl Step for Crate {
         }
 
         builder.info(&format!(
-            "{} {:?} stage{} ({} -> {})",
-            test_kind, self.crates, compiler.stage, &compiler.host, target
+            "{}{} stage{} ({} -> {})",
+            test_kind,
+            crate_description(&self.crates),
+            compiler.stage,
+            &compiler.host,
+            target
         ));
         let _time = util::timeit(&builder);
         try_run(builder, &mut cargo.into());
diff --git a/src/bootstrap/tool.rs b/src/bootstrap/tool.rs
index 24b033cc0dc5e..63026bd44d475 100644
--- a/src/bootstrap/tool.rs
+++ b/src/bootstrap/tool.rs
@@ -72,7 +72,7 @@ impl Step for ToolBuild {
 
         builder.info(&format!("Building stage{} tool {} ({})", compiler.stage, tool, target));
         let mut duplicates = Vec::new();
-        let is_expected = compile::stream_cargo(builder, cargo, vec![], &mut |msg| {
+        let is_expected = compile::stream_cargo(builder, cargo, &mut |msg| {
             // Only care about big things like the RLS/Cargo for now
             match tool {
                 "rls" | "cargo" | "clippy-driver" | "miri" | "rustfmt" => {}
diff --git a/src/test/codegen/sanitizer-cfi-emit-type-metadata-id-itanium-cxx-abi.rs b/src/test/codegen/sanitizer-cfi-emit-type-metadata-id-itanium-cxx-abi.rs
index ece2adbdf4325..b9c33914360ba 100644
--- a/src/test/codegen/sanitizer-cfi-emit-type-metadata-id-itanium-cxx-abi.rs
+++ b/src/test/codegen/sanitizer-cfi-emit-type-metadata-id-itanium-cxx-abi.rs
@@ -131,6 +131,13 @@ pub struct Type13<'a> {
     member3: &'a Type13<'a>,
 }
 
+// Helper type to allow `Type14<Bar>` to be a unique ID
+pub struct Bar;
+
+// repr(transparent) parameterized type
+#[repr(transparent)]
+pub struct Type14<T>(T);
+
 pub fn foo0(_: ()) { }
 // CHECK: define{{.*}}foo0{{.*}}!type ![[TYPE0:[0-9]+]]
 pub fn foo1(_: c_void, _: ()) { }
@@ -425,6 +432,12 @@ pub fn foo145(_: Type13, _: Type13) { }
 // CHECK: define{{.*}}foo145{{.*}}!type ![[TYPE145:[0-9]+]]
 pub fn foo146(_: Type13, _: Type13, _: Type13) { }
 // CHECK: define{{.*}}foo146{{.*}}!type ![[TYPE146:[0-9]+]]
+pub fn foo147(_: Type14<Bar>) { }
+// CHECK: define{{.*}}foo147{{.*}}!type ![[TYPE147:[0-9]+]]
+pub fn foo148(_: Type14<Bar>, _: Type14<Bar>) { }
+// CHECK: define{{.*}}foo148{{.*}}!type ![[TYPE148:[0-9]+]]
+pub fn foo149(_: Type14<Bar>, _: Type14<Bar>, _: Type14<Bar>) { }
+// CHECK: define{{.*}}foo149{{.*}}!type ![[TYPE149:[0-9]+]]
 
 // CHECK: ![[TYPE0]] = !{i64 0, !"_ZTSFvvE"}
 // CHECK: ![[TYPE1]] = !{i64 0, !"_ZTSFvvvE"}
@@ -570,6 +583,9 @@ pub fn foo146(_: Type13, _: Type13, _: Type13) { }
 // CHECK: ![[TYPE141]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_51sanitizer_cfi_emit_type_metadata_id_itanium_cxx_abi3FooE"}
 // CHECK: ![[TYPE142]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_51sanitizer_cfi_emit_type_metadata_id_itanium_cxx_abi3FooS_E"}
 // CHECK: ![[TYPE143]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_51sanitizer_cfi_emit_type_metadata_id_itanium_cxx_abi3FooS_S_E"}
-// CHECK: ![[TYPE144]] = !{i64 0, !"_ZTSFvu3refIu3refIvEEE"}
-// CHECK: ![[TYPE145]] = !{i64 0, !"_ZTSFvu3refIu3refIvEES0_E"}
-// CHECK: ![[TYPE146]] = !{i64 0, !"_ZTSFvu3refIu3refIvEES0_S0_E"}
+// CHECK: ![[TYPE144]] = !{i64 0, !"_ZTSFvu3refIvEE"}
+// CHECK: ![[TYPE145]] = !{i64 0, !"_ZTSFvu3refIvES_E"}
+// CHECK: ![[TYPE146]] = !{i64 0, !"_ZTSFvu3refIvES_S_E"}
+// CHECK: ![[TYPE147]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_51sanitizer_cfi_emit_type_metadata_id_itanium_cxx_abi3BarE
+// CHECK: ![[TYPE148]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_51sanitizer_cfi_emit_type_metadata_id_itanium_cxx_abi3BarS_E
+// CHECK: ![[TYPE149]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_51sanitizer_cfi_emit_type_metadata_id_itanium_cxx_abi3BarS_S_E
diff --git a/src/test/rustdoc-gui/scrape-examples-layout.goml b/src/test/rustdoc-gui/scrape-examples-layout.goml
index fde9a0ab0bc30..95102528ec11d 100644
--- a/src/test/rustdoc-gui/scrape-examples-layout.goml
+++ b/src/test/rustdoc-gui/scrape-examples-layout.goml
@@ -33,3 +33,17 @@ assert-property: (
     ".more-scraped-examples .scraped-example:nth-child(6) .code-wrapper .src-line-numbers",
     {"clientWidth": |clientWidth|}
 )
+
+// Check that for both mobile and desktop sizes, the buttons in scraped examples are displayed
+// correctly.
+
+store-value: (offset_y, 4)
+
+// First with desktop
+assert-position: (".scraped-example .code-wrapper", {"y": 255})
+assert-position: (".scraped-example .code-wrapper .prev", {"y": 255 + |offset_y|})
+
+// Then with mobile
+size: (600, 600)
+assert-position: (".scraped-example .code-wrapper", {"y": 314})
+assert-position: (".scraped-example .code-wrapper .prev", {"y": 314 + |offset_y|})
diff --git a/src/test/ui/array-slice-vec/slice-mut-2.stderr b/src/test/ui/array-slice-vec/slice-mut-2.stderr
index bad0268772b79..5b040d3e4d31d 100644
--- a/src/test/ui/array-slice-vec/slice-mut-2.stderr
+++ b/src/test/ui/array-slice-vec/slice-mut-2.stderr
@@ -1,11 +1,13 @@
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/slice-mut-2.rs:7:18
    |
-LL |     let x: &[isize] = &[1, 2, 3, 4, 5];
-   |                       ---------------- help: consider changing this to be a mutable reference: `&mut [1, 2, 3, 4, 5]`
-...
 LL |     let _ = &mut x[2..4];
    |                  ^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let x: &[isize] = &mut [1, 2, 3, 4, 5];
+   |                       ~~~~~~~~~~~~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/borrowck/borrow-raw-address-of-deref-mutability.stderr b/src/test/ui/borrowck/borrow-raw-address-of-deref-mutability.stderr
index 5963dab9f4aab..4cc1d821d0a06 100644
--- a/src/test/ui/borrowck/borrow-raw-address-of-deref-mutability.stderr
+++ b/src/test/ui/borrowck/borrow-raw-address-of-deref-mutability.stderr
@@ -1,20 +1,24 @@
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/borrow-raw-address-of-deref-mutability.rs:8:13
    |
-LL |     let x = &0;
-   |             -- help: consider changing this to be a mutable reference: `&mut 0`
-LL |
 LL |     let q = &raw mut *x;
    |             ^^^^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let x = &mut 0;
+   |             ~~~~~~
 
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `*const` pointer
   --> $DIR/borrow-raw-address-of-deref-mutability.rs:14:13
    |
-LL |     let x = &0 as *const i32;
-   |             -- help: consider changing this to be a mutable pointer: `&mut 0`
-LL |
 LL |     let q = &raw mut *x;
    |             ^^^^^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable pointer
+   |
+LL |     let x = &mut 0 as *const i32;
+   |             ~~~~~~
 
 error: aborting due to 2 previous errors
 
diff --git a/src/test/ui/borrowck/borrowck-access-permissions.stderr b/src/test/ui/borrowck/borrowck-access-permissions.stderr
index e3a35c38a7c03..312720898473a 100644
--- a/src/test/ui/borrowck/borrowck-access-permissions.stderr
+++ b/src/test/ui/borrowck/borrowck-access-permissions.stderr
@@ -25,28 +25,35 @@ LL |         let _y1 = &mut *box_x;
 error[E0596]: cannot borrow `*ref_x` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-access-permissions.rs:30:19
    |
-LL |         let ref_x = &x;
-   |                     -- help: consider changing this to be a mutable reference: `&mut x`
-...
 LL |         let _y1 = &mut *ref_x;
    |                   ^^^^^^^^^^^ `ref_x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |         let ref_x = &mut x;
+   |                     ~~~~~~
 
 error[E0596]: cannot borrow `*ptr_x` as mutable, as it is behind a `*const` pointer
   --> $DIR/borrowck-access-permissions.rs:39:23
    |
-LL |         let ptr_x : *const _ = &x;
-   |                                -- help: consider changing this to be a mutable pointer: `&mut x`
-...
 LL |             let _y1 = &mut *ptr_x;
    |                       ^^^^^^^^^^^ `ptr_x` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable pointer
+   |
+LL |         let ptr_x : *const _ = &mut x;
+   |                                ~~~~~~
 
 error[E0596]: cannot borrow `*foo_ref.f` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-access-permissions.rs:48:18
    |
-LL |         let foo_ref = &foo;
-   |                       ---- help: consider changing this to be a mutable reference: `&mut foo`
 LL |         let _y = &mut *foo_ref.f;
    |                  ^^^^^^^^^^^^^^^ `foo_ref` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |         let foo_ref = &mut foo;
+   |                       ~~~~~~~~
 
 error: aborting due to 6 previous errors
 
diff --git a/src/test/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc.stderr b/src/test/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc.stderr
index 0475df447445d..cbacc87a0e858 100644
--- a/src/test/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc.stderr
+++ b/src/test/ui/borrowck/borrowck-assign-to-andmut-in-aliasable-loc.stderr
@@ -1,18 +1,24 @@
 error[E0594]: cannot assign to `*s.pointer`, which is behind a `&` reference
   --> $DIR/borrowck-assign-to-andmut-in-aliasable-loc.rs:9:5
    |
-LL | fn a(s: &S) {
-   |         -- help: consider changing this to be a mutable reference: `&mut S<'_>`
 LL |     *s.pointer += 1;
    |     ^^^^^^^^^^^^^^^ `s` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn a(s: &mut S<'_>) {
+   |         ~~~~~~~~~~
 
 error[E0594]: cannot assign to `*s.pointer`, which is behind a `&` reference
   --> $DIR/borrowck-assign-to-andmut-in-aliasable-loc.rs:17:5
    |
-LL | fn c(s: & &mut S) {
-   |         -------- help: consider changing this to be a mutable reference: `&mut &mut S<'_>`
 LL |     *s.pointer += 1;
    |     ^^^^^^^^^^^^^^^ `s` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn c(s: &mut &mut S<'_>) {
+   |         ~~~~~~~~~~~~~~~
 
 error: aborting due to 2 previous errors
 
diff --git a/src/test/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc.stderr b/src/test/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc.stderr
index c99c0f77982ed..ce9f7aa050a0a 100644
--- a/src/test/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc.stderr
+++ b/src/test/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc.stderr
@@ -20,10 +20,13 @@ LL |     **t1 = 22;
 error[E0596]: cannot borrow `**t0` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-borrow-mut-base-ptr-in-aliasable-loc.rs:19:26
    |
-LL | fn foo4(t0: & &mut isize) {
-   |             ------------ help: consider changing this to be a mutable reference: `&mut &mut isize`
 LL |     let x:  &mut isize = &mut **t0;
    |                          ^^^^^^^^^ `t0` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn foo4(t0: &mut &mut isize) {
+   |             ~~~~~~~~~~~~~~~
 
 error: aborting due to 3 previous errors
 
diff --git a/src/test/ui/borrowck/borrowck-issue-14498.stderr b/src/test/ui/borrowck/borrowck-issue-14498.stderr
index 4c0e46d453142..42a55b7a854ba 100644
--- a/src/test/ui/borrowck/borrowck-issue-14498.stderr
+++ b/src/test/ui/borrowck/borrowck-issue-14498.stderr
@@ -1,10 +1,13 @@
 error[E0594]: cannot assign to `***p`, which is behind a `&` reference
   --> $DIR/borrowck-issue-14498.rs:16:5
    |
-LL |     let p = &y;
-   |             -- help: consider changing this to be a mutable reference: `&mut y`
 LL |     ***p = 2;
    |     ^^^^^^^^ `p` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let p = &mut y;
+   |             ~~~~~~
 
 error[E0506]: cannot assign to `**y` because it is borrowed
   --> $DIR/borrowck-issue-14498.rs:25:5
diff --git a/src/test/ui/borrowck/borrowck-reborrow-from-mut.stderr b/src/test/ui/borrowck/borrowck-reborrow-from-mut.stderr
index 284cab2960842..d9590e446c756 100644
--- a/src/test/ui/borrowck/borrowck-reborrow-from-mut.stderr
+++ b/src/test/ui/borrowck/borrowck-reborrow-from-mut.stderr
@@ -105,10 +105,13 @@ LL |     use_imm(_bar1);
 error[E0596]: cannot borrow `foo.bar1` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-reborrow-from-mut.rs:88:17
    |
-LL | fn borrow_mut_from_imm(foo: &Foo) {
-   |                             ---- help: consider changing this to be a mutable reference: `&mut Foo`
 LL |     let _bar1 = &mut foo.bar1;
    |                 ^^^^^^^^^^^^^ `foo` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn borrow_mut_from_imm(foo: &mut Foo) {
+   |                             ~~~~~~~~
 
 error: aborting due to 11 previous errors
 
diff --git a/src/test/ui/borrowck/issue-85765.stderr b/src/test/ui/borrowck/issue-85765.stderr
index 13033962142fa..7da7dba68ab7a 100644
--- a/src/test/ui/borrowck/issue-85765.stderr
+++ b/src/test/ui/borrowck/issue-85765.stderr
@@ -10,11 +10,13 @@ LL |     rofl.push(Vec::new());
 error[E0594]: cannot assign to `*r`, which is behind a `&` reference
   --> $DIR/issue-85765.rs:12:5
    |
-LL |     let r = &mutvar;
-   |             ------- help: consider changing this to be a mutable reference: `&mut mutvar`
-LL |
 LL |     *r = 0;
    |     ^^^^^^ `r` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let r = &mut mutvar;
+   |             ~~~~~~~~~~~
 
 error[E0594]: cannot assign to `*x`, which is behind a `&` reference
   --> $DIR/issue-85765.rs:19:5
diff --git a/src/test/ui/borrowck/issue-93093.stderr b/src/test/ui/borrowck/issue-93093.stderr
index 031128af47655..afa76594f0b5e 100644
--- a/src/test/ui/borrowck/issue-93093.stderr
+++ b/src/test/ui/borrowck/issue-93093.stderr
@@ -1,11 +1,13 @@
 error[E0594]: cannot assign to `self.foo`, which is behind a `&` reference
   --> $DIR/issue-93093.rs:8:9
    |
-LL |     async fn bar(&self) {
-   |                  ----- help: consider changing this to be a mutable reference: `&mut self`
-LL |
 LL |         self.foo += 1;
    |         ^^^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     async fn bar(&mut self) {
+   |                  ~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/borrowck/mutability-errors.stderr b/src/test/ui/borrowck/mutability-errors.stderr
index dd29ae492d604..7a00ace3bb220 100644
--- a/src/test/ui/borrowck/mutability-errors.stderr
+++ b/src/test/ui/borrowck/mutability-errors.stderr
@@ -1,37 +1,46 @@
 error[E0594]: cannot assign to `*x`, which is behind a `&` reference
   --> $DIR/mutability-errors.rs:9:5
    |
-LL | fn named_ref(x: &(i32,)) {
-   |                 ------- help: consider changing this to be a mutable reference: `&mut (i32,)`
 LL |     *x = (1,);
    |     ^^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn named_ref(x: &mut (i32,)) {
+   |                 ~~~~~~~~~~~
 
 error[E0594]: cannot assign to `x.0`, which is behind a `&` reference
   --> $DIR/mutability-errors.rs:10:5
    |
-LL | fn named_ref(x: &(i32,)) {
-   |                 ------- help: consider changing this to be a mutable reference: `&mut (i32,)`
-LL |     *x = (1,);
 LL |     x.0 = 1;
    |     ^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn named_ref(x: &mut (i32,)) {
+   |                 ~~~~~~~~~~~
 
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/mutability-errors.rs:11:5
    |
-LL | fn named_ref(x: &(i32,)) {
-   |                 ------- help: consider changing this to be a mutable reference: `&mut (i32,)`
-...
 LL |     &mut *x;
    |     ^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn named_ref(x: &mut (i32,)) {
+   |                 ~~~~~~~~~~~
 
 error[E0596]: cannot borrow `x.0` as mutable, as it is behind a `&` reference
   --> $DIR/mutability-errors.rs:12:5
    |
-LL | fn named_ref(x: &(i32,)) {
-   |                 ------- help: consider changing this to be a mutable reference: `&mut (i32,)`
-...
 LL |     &mut x.0;
    |     ^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn named_ref(x: &mut (i32,)) {
+   |                 ~~~~~~~~~~~
 
 error[E0594]: cannot assign to data in a `&` reference
   --> $DIR/mutability-errors.rs:16:5
@@ -60,37 +69,46 @@ LL |     &mut f().0;
 error[E0594]: cannot assign to `*x`, which is behind a `*const` pointer
   --> $DIR/mutability-errors.rs:23:5
    |
-LL | unsafe fn named_ptr(x: *const (i32,)) {
-   |                        ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)`
 LL |     *x = (1,);
    |     ^^^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable pointer
+   |
+LL | unsafe fn named_ptr(x: *mut (i32,)) {
+   |                        ~~~~~~~~~~~
 
 error[E0594]: cannot assign to `x.0`, which is behind a `*const` pointer
   --> $DIR/mutability-errors.rs:24:5
    |
-LL | unsafe fn named_ptr(x: *const (i32,)) {
-   |                        ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)`
-LL |     *x = (1,);
 LL |     (*x).0 = 1;
    |     ^^^^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable pointer
+   |
+LL | unsafe fn named_ptr(x: *mut (i32,)) {
+   |                        ~~~~~~~~~~~
 
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `*const` pointer
   --> $DIR/mutability-errors.rs:25:5
    |
-LL | unsafe fn named_ptr(x: *const (i32,)) {
-   |                        ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)`
-...
 LL |     &mut *x;
    |     ^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable pointer
+   |
+LL | unsafe fn named_ptr(x: *mut (i32,)) {
+   |                        ~~~~~~~~~~~
 
 error[E0596]: cannot borrow `x.0` as mutable, as it is behind a `*const` pointer
   --> $DIR/mutability-errors.rs:26:5
    |
-LL | unsafe fn named_ptr(x: *const (i32,)) {
-   |                        ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)`
-...
 LL |     &mut (*x).0;
    |     ^^^^^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable pointer
+   |
+LL | unsafe fn named_ptr(x: *mut (i32,)) {
+   |                        ~~~~~~~~~~~
 
 error[E0594]: cannot assign to data in a `*const` pointer
   --> $DIR/mutability-errors.rs:30:5
diff --git a/src/test/ui/closures/2229_closure_analysis/diagnostics/mut_ref.stderr b/src/test/ui/closures/2229_closure_analysis/diagnostics/mut_ref.stderr
index 481d7e58529ee..95f36fc042c4f 100644
--- a/src/test/ui/closures/2229_closure_analysis/diagnostics/mut_ref.stderr
+++ b/src/test/ui/closures/2229_closure_analysis/diagnostics/mut_ref.stderr
@@ -1,14 +1,16 @@
 error[E0596]: cannot borrow `**ref_mref_x` as mutable, as it is behind a `&` reference
   --> $DIR/mut_ref.rs:12:13
    |
-LL |     let ref_mref_x = &mref_x;
-   |                      ------- help: consider changing this to be a mutable reference: `&mut mref_x`
-LL |
 LL |     let c = || {
    |             ^^ `ref_mref_x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
 LL |
 LL |         **ref_mref_x = y;
    |         ------------ mutable borrow occurs due to use of `**ref_mref_x` in closure
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let ref_mref_x = &mut mref_x;
+   |                      ~~~~~~~~~~~
 
 error[E0596]: cannot borrow `**mref_ref_x` as mutable, as it is behind a `&` reference
   --> $DIR/mut_ref.rs:26:13
diff --git a/src/test/ui/crate-loading/crateresolve1.rs b/src/test/ui/crate-loading/crateresolve1.rs
index f4795e9536af7..8605999e8f7c4 100644
--- a/src/test/ui/crate-loading/crateresolve1.rs
+++ b/src/test/ui/crate-loading/crateresolve1.rs
@@ -9,7 +9,6 @@
 // NOTE: This test is duplicated at `src/test/ui/error-codes/E0464.rs`.
 
 extern crate crateresolve1;
-//~^ ERROR multiple matching crates for `crateresolve1`
+//~^ ERROR multiple candidates for `dylib` dependency `crateresolve1` found
 
-fn main() {
-}
+fn main() {}
diff --git a/src/test/ui/crate-loading/crateresolve1.stderr b/src/test/ui/crate-loading/crateresolve1.stderr
index 0d7538eafd812..07d0dc9b1d14b 100644
--- a/src/test/ui/crate-loading/crateresolve1.stderr
+++ b/src/test/ui/crate-loading/crateresolve1.stderr
@@ -1,13 +1,12 @@
-error[E0464]: multiple matching crates for `crateresolve1`
+error[E0464]: multiple candidates for `dylib` dependency `crateresolve1` found
   --> $DIR/crateresolve1.rs:11:1
    |
 LL | extern crate crateresolve1;
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
-   = note: candidates:
-           crate `crateresolve1`: $TEST_BUILD_DIR/crate-loading/crateresolve1/auxiliary/libcrateresolve1-1.somelib
-           crate `crateresolve1`: $TEST_BUILD_DIR/crate-loading/crateresolve1/auxiliary/libcrateresolve1-2.somelib
-           crate `crateresolve1`: $TEST_BUILD_DIR/crate-loading/crateresolve1/auxiliary/libcrateresolve1-3.somelib
+   = note: candidate #1: $TEST_BUILD_DIR/crate-loading/crateresolve1/auxiliary/libcrateresolve1-1.somelib
+   = note: candidate #2: $TEST_BUILD_DIR/crate-loading/crateresolve1/auxiliary/libcrateresolve1-2.somelib
+   = note: candidate #3: $TEST_BUILD_DIR/crate-loading/crateresolve1/auxiliary/libcrateresolve1-3.somelib
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/crate-loading/crateresolve2.rs b/src/test/ui/crate-loading/crateresolve2.rs
index 5a4fee7ed6afa..0774c0dfd329d 100644
--- a/src/test/ui/crate-loading/crateresolve2.rs
+++ b/src/test/ui/crate-loading/crateresolve2.rs
@@ -8,7 +8,6 @@
 // normalize-stderr-test: "\\\?\\" -> ""
 
 extern crate crateresolve2;
-//~^ ERROR multiple matching crates for `crateresolve2`
+//~^ ERROR multiple candidates for `rmeta` dependency `crateresolve2` found
 
-fn main() {
-}
+fn main() {}
diff --git a/src/test/ui/crate-loading/crateresolve2.stderr b/src/test/ui/crate-loading/crateresolve2.stderr
index afd3702de7f73..a36f4f02265b7 100644
--- a/src/test/ui/crate-loading/crateresolve2.stderr
+++ b/src/test/ui/crate-loading/crateresolve2.stderr
@@ -1,13 +1,12 @@
-error[E0464]: multiple matching crates for `crateresolve2`
+error[E0464]: multiple candidates for `rmeta` dependency `crateresolve2` found
   --> $DIR/crateresolve2.rs:10:1
    |
 LL | extern crate crateresolve2;
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
-   = note: candidates:
-           crate `crateresolve2`: $TEST_BUILD_DIR/crate-loading/crateresolve2/auxiliary/libcrateresolve2-1.rmeta
-           crate `crateresolve2`: $TEST_BUILD_DIR/crate-loading/crateresolve2/auxiliary/libcrateresolve2-2.rmeta
-           crate `crateresolve2`: $TEST_BUILD_DIR/crate-loading/crateresolve2/auxiliary/libcrateresolve2-3.rmeta
+   = note: candidate #1: $TEST_BUILD_DIR/crate-loading/crateresolve2/auxiliary/libcrateresolve2-1.rmeta
+   = note: candidate #2: $TEST_BUILD_DIR/crate-loading/crateresolve2/auxiliary/libcrateresolve2-2.rmeta
+   = note: candidate #3: $TEST_BUILD_DIR/crate-loading/crateresolve2/auxiliary/libcrateresolve2-3.rmeta
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/did_you_mean/issue-38147-1.stderr b/src/test/ui/did_you_mean/issue-38147-1.stderr
index dd193458b3726..74fb1c2eca307 100644
--- a/src/test/ui/did_you_mean/issue-38147-1.stderr
+++ b/src/test/ui/did_you_mean/issue-38147-1.stderr
@@ -1,10 +1,13 @@
 error[E0596]: cannot borrow `*self.s` as mutable, as it is behind a `&` reference
   --> $DIR/issue-38147-1.rs:17:9
    |
-LL |     fn f(&self) {
-   |          ----- help: consider changing this to be a mutable reference: `&mut self`
 LL |         self.s.push('x');
    |         ^^^^^^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn f(&mut self) {
+   |          ~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/did_you_mean/issue-38147-4.stderr b/src/test/ui/did_you_mean/issue-38147-4.stderr
index a2d162f08a173..d333998936169 100644
--- a/src/test/ui/did_you_mean/issue-38147-4.stderr
+++ b/src/test/ui/did_you_mean/issue-38147-4.stderr
@@ -1,10 +1,13 @@
 error[E0596]: cannot borrow `*f.s` as mutable, as it is behind a `&` reference
   --> $DIR/issue-38147-4.rs:6:5
    |
-LL | fn f(x: usize, f: &Foo) {
-   |                   ---- help: consider changing this to be a mutable reference: `&mut Foo<'_>`
 LL |     f.s.push('x');
    |     ^^^^^^^^^^^^^ `f` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn f(x: usize, f: &mut Foo<'_>) {
+   |                   ~~~~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/did_you_mean/issue-39544.stderr b/src/test/ui/did_you_mean/issue-39544.stderr
index 68180eaee036c..b16309af0418d 100644
--- a/src/test/ui/did_you_mean/issue-39544.stderr
+++ b/src/test/ui/did_you_mean/issue-39544.stderr
@@ -9,69 +9,90 @@ LL |     let _ = &mut z.x;
 error[E0596]: cannot borrow `self.x` as mutable, as it is behind a `&` reference
   --> $DIR/issue-39544.rs:16:17
    |
-LL |     fn foo<'z>(&'z self) {
-   |                -------- help: consider changing this to be a mutable reference: `&'z mut self`
 LL |         let _ = &mut self.x;
    |                 ^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn foo<'z>(&'z mut self) {
+   |                ~~~~~~~~~~~~
 
 error[E0596]: cannot borrow `self.x` as mutable, as it is behind a `&` reference
   --> $DIR/issue-39544.rs:20:17
    |
-LL |     fn foo1(&self, other: &Z) {
-   |             ----- help: consider changing this to be a mutable reference: `&mut self`
 LL |         let _ = &mut self.x;
    |                 ^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn foo1(&mut self, other: &Z) {
+   |             ~~~~~~~~~
 
 error[E0596]: cannot borrow `other.x` as mutable, as it is behind a `&` reference
   --> $DIR/issue-39544.rs:21:17
    |
-LL |     fn foo1(&self, other: &Z) {
-   |                           -- help: consider changing this to be a mutable reference: `&mut Z`
-LL |         let _ = &mut self.x;
 LL |         let _ = &mut other.x;
    |                 ^^^^^^^^^^^^ `other` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn foo1(&self, other: &mut Z) {
+   |                           ~~~~~~
 
 error[E0596]: cannot borrow `self.x` as mutable, as it is behind a `&` reference
   --> $DIR/issue-39544.rs:25:17
    |
-LL |     fn foo2<'a>(&'a self, other: &Z) {
-   |                 -------- help: consider changing this to be a mutable reference: `&'a mut self`
 LL |         let _ = &mut self.x;
    |                 ^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn foo2<'a>(&'a mut self, other: &Z) {
+   |                 ~~~~~~~~~~~~
 
 error[E0596]: cannot borrow `other.x` as mutable, as it is behind a `&` reference
   --> $DIR/issue-39544.rs:26:17
    |
-LL |     fn foo2<'a>(&'a self, other: &Z) {
-   |                                  -- help: consider changing this to be a mutable reference: `&mut Z`
-LL |         let _ = &mut self.x;
 LL |         let _ = &mut other.x;
    |                 ^^^^^^^^^^^^ `other` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn foo2<'a>(&'a self, other: &mut Z) {
+   |                                  ~~~~~~
 
 error[E0596]: cannot borrow `self.x` as mutable, as it is behind a `&` reference
   --> $DIR/issue-39544.rs:30:17
    |
-LL |     fn foo3<'a>(self: &'a Self, other: &Z) {
-   |                       -------- help: consider changing this to be a mutable reference: `&'a mut Self`
 LL |         let _ = &mut self.x;
    |                 ^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn foo3<'a>(self: &'a mut Self, other: &Z) {
+   |                       ~~~~~~~~~~~~
 
 error[E0596]: cannot borrow `other.x` as mutable, as it is behind a `&` reference
   --> $DIR/issue-39544.rs:31:17
    |
-LL |     fn foo3<'a>(self: &'a Self, other: &Z) {
-   |                                        -- help: consider changing this to be a mutable reference: `&mut Z`
-LL |         let _ = &mut self.x;
 LL |         let _ = &mut other.x;
    |                 ^^^^^^^^^^^^ `other` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn foo3<'a>(self: &'a Self, other: &mut Z) {
+   |                                        ~~~~~~
 
 error[E0596]: cannot borrow `other.x` as mutable, as it is behind a `&` reference
   --> $DIR/issue-39544.rs:35:17
    |
-LL |     fn foo4(other: &Z) {
-   |                    -- help: consider changing this to be a mutable reference: `&mut Z`
 LL |         let _ = &mut other.x;
    |                 ^^^^^^^^^^^^ `other` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn foo4(other: &mut Z) {
+   |                    ~~~~~~
 
 error[E0596]: cannot borrow `z.x` as mutable, as `z` is not declared as mutable
   --> $DIR/issue-39544.rs:41:13
@@ -84,11 +105,13 @@ LL |     let _ = &mut z.x;
 error[E0596]: cannot borrow `w.x` as mutable, as it is behind a `&` reference
   --> $DIR/issue-39544.rs:42:13
    |
-LL | pub fn with_arg(z: Z, w: &Z) {
-   |                          -- help: consider changing this to be a mutable reference: `&mut Z`
-LL |     let _ = &mut z.x;
 LL |     let _ = &mut w.x;
    |             ^^^^^^^^ `w` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | pub fn with_arg(z: Z, w: &mut Z) {
+   |                          ~~~~~~
 
 error[E0594]: cannot assign to `*x.0`, which is behind a `&` reference
   --> $DIR/issue-39544.rs:48:5
diff --git a/src/test/ui/did_you_mean/issue-40823.stderr b/src/test/ui/did_you_mean/issue-40823.stderr
index 67703a1497f50..aadd698891edc 100644
--- a/src/test/ui/did_you_mean/issue-40823.stderr
+++ b/src/test/ui/did_you_mean/issue-40823.stderr
@@ -1,10 +1,13 @@
 error[E0596]: cannot borrow `*buf` as mutable, as it is behind a `&` reference
   --> $DIR/issue-40823.rs:3:5
    |
-LL |     let mut buf = &[1, 2, 3, 4];
-   |                   ------------- help: consider changing this to be a mutable reference: `&mut [1, 2, 3, 4]`
 LL |     buf.iter_mut();
    |     ^^^^^^^^^^^^^^ `buf` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let mut buf = &mut [1, 2, 3, 4];
+   |                   ~~~~~~~~~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/error-codes/E0389.stderr b/src/test/ui/error-codes/E0389.stderr
index 3d615bd932f43..51c4c92addf28 100644
--- a/src/test/ui/error-codes/E0389.stderr
+++ b/src/test/ui/error-codes/E0389.stderr
@@ -1,10 +1,13 @@
 error[E0594]: cannot assign to `fancy_ref.num`, which is behind a `&` reference
   --> $DIR/E0389.rs:8:5
    |
-LL |     let fancy_ref = &(&mut fancy);
-   |                     ------------- help: consider changing this to be a mutable reference: `&mut (&mut fancy)`
 LL |     fancy_ref.num = 6;
    |     ^^^^^^^^^^^^^^^^^ `fancy_ref` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let fancy_ref = &mut (&mut fancy);
+   |                     ~~~~~~~~~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/error-codes/E0464.rs b/src/test/ui/error-codes/E0464.rs
index 969115a7d9774..b4ecef1517462 100644
--- a/src/test/ui/error-codes/E0464.rs
+++ b/src/test/ui/error-codes/E0464.rs
@@ -9,7 +9,6 @@
 // NOTE: This test is duplicated from `src/test/ui/crate-loading/crateresolve1.rs`.
 
 extern crate crateresolve1;
-//~^ ERROR multiple matching crates for `crateresolve1`
+//~^ ERROR multiple candidates for `dylib` dependency `crateresolve1` found
 
-fn main() {
-}
+fn main() {}
diff --git a/src/test/ui/error-codes/E0464.stderr b/src/test/ui/error-codes/E0464.stderr
index 3d950ddd28ee0..712585d531867 100644
--- a/src/test/ui/error-codes/E0464.stderr
+++ b/src/test/ui/error-codes/E0464.stderr
@@ -1,13 +1,12 @@
-error[E0464]: multiple matching crates for `crateresolve1`
+error[E0464]: multiple candidates for `dylib` dependency `crateresolve1` found
   --> $DIR/E0464.rs:11:1
    |
 LL | extern crate crateresolve1;
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
-   = note: candidates:
-           crate `crateresolve1`: $TEST_BUILD_DIR/error-codes/E0464/auxiliary/libcrateresolve1-1.somelib
-           crate `crateresolve1`: $TEST_BUILD_DIR/error-codes/E0464/auxiliary/libcrateresolve1-2.somelib
-           crate `crateresolve1`: $TEST_BUILD_DIR/error-codes/E0464/auxiliary/libcrateresolve1-3.somelib
+   = note: candidate #1: $TEST_BUILD_DIR/error-codes/E0464/auxiliary/libcrateresolve1-1.somelib
+   = note: candidate #2: $TEST_BUILD_DIR/error-codes/E0464/auxiliary/libcrateresolve1-2.somelib
+   = note: candidate #3: $TEST_BUILD_DIR/error-codes/E0464/auxiliary/libcrateresolve1-3.somelib
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/issues/issue-51515.stderr b/src/test/ui/issues/issue-51515.stderr
index 067bdef8b6746..c4e61e7195392 100644
--- a/src/test/ui/issues/issue-51515.stderr
+++ b/src/test/ui/issues/issue-51515.stderr
@@ -1,11 +1,13 @@
 error[E0594]: cannot assign to `*foo`, which is behind a `&` reference
   --> $DIR/issue-51515.rs:5:5
    |
-LL |     let foo = &16;
-   |               --- help: consider changing this to be a mutable reference: `&mut 16`
-...
 LL |     *foo = 32;
    |     ^^^^^^^^^ `foo` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let foo = &mut 16;
+   |               ~~~~~~~
 
 error[E0594]: cannot assign to `*bar`, which is behind a `&` reference
   --> $DIR/issue-51515.rs:8:5
diff --git a/src/test/ui/issues/issue-61623.stderr b/src/test/ui/issues/issue-61623.stderr
index f654605423379..5fcc338557c58 100644
--- a/src/test/ui/issues/issue-61623.stderr
+++ b/src/test/ui/issues/issue-61623.stderr
@@ -1,10 +1,13 @@
 error[E0596]: cannot borrow `*x.1` as mutable, as it is behind a `&` reference
   --> $DIR/issue-61623.rs:6:19
    |
-LL | fn f3<'a>(x: &'a ((), &'a mut ())) {
-   |              -------------------- help: consider changing this to be a mutable reference: `&'a mut ((), &'a mut ())`
 LL |     f2(|| x.0, f1(x.1))
    |                   ^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn f3<'a>(x: &'a mut ((), &'a mut ())) {
+   |              ~~~~~~~~~~~~~~~~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/mut/mutable-class-fields-2.stderr b/src/test/ui/mut/mutable-class-fields-2.stderr
index 5a4e31947f2b2..c53c6ea302c67 100644
--- a/src/test/ui/mut/mutable-class-fields-2.stderr
+++ b/src/test/ui/mut/mutable-class-fields-2.stderr
@@ -1,10 +1,13 @@
 error[E0594]: cannot assign to `self.how_hungry`, which is behind a `&` reference
   --> $DIR/mutable-class-fields-2.rs:9:5
    |
-LL |   pub fn eat(&self) {
-   |              ----- help: consider changing this to be a mutable reference: `&mut self`
 LL |     self.how_hungry -= 5;
    |     ^^^^^^^^^^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |   pub fn eat(&mut self) {
+   |              ~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/nll/issue-47388.stderr b/src/test/ui/nll/issue-47388.stderr
index a4ee778175306..c780451dfa935 100644
--- a/src/test/ui/nll/issue-47388.stderr
+++ b/src/test/ui/nll/issue-47388.stderr
@@ -1,10 +1,13 @@
 error[E0594]: cannot assign to `fancy_ref.num`, which is behind a `&` reference
   --> $DIR/issue-47388.rs:8:5
    |
-LL |     let fancy_ref = &(&mut fancy);
-   |                     ------------- help: consider changing this to be a mutable reference: `&mut (&mut fancy)`
 LL |     fancy_ref.num = 6;
    |     ^^^^^^^^^^^^^^^^^ `fancy_ref` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let fancy_ref = &mut (&mut fancy);
+   |                     ~~~~~~~~~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/nll/issue-51244.stderr b/src/test/ui/nll/issue-51244.stderr
index dcb6f9fec18b6..03d8acc81886a 100644
--- a/src/test/ui/nll/issue-51244.stderr
+++ b/src/test/ui/nll/issue-51244.stderr
@@ -1,10 +1,13 @@
 error[E0594]: cannot assign to `*my_ref`, which is behind a `&` reference
   --> $DIR/issue-51244.rs:3:5
    |
-LL |     let ref my_ref @ _ = 0;
-   |         ---------- help: consider changing this to be a mutable reference: `ref mut my_ref`
 LL |     *my_ref = 0;
    |     ^^^^^^^^^^^ `my_ref` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let ref mut my_ref @ _ = 0;
+   |         ~~~~~~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/nll/issue-57989.stderr b/src/test/ui/nll/issue-57989.stderr
index e85e63e52ecc3..31f40d8252ed6 100644
--- a/src/test/ui/nll/issue-57989.stderr
+++ b/src/test/ui/nll/issue-57989.stderr
@@ -1,11 +1,13 @@
 error[E0594]: cannot assign to `*x`, which is behind a `&` reference
   --> $DIR/issue-57989.rs:5:5
    |
-LL | fn f(x: &i32) {
-   |         ---- help: consider changing this to be a mutable reference: `&mut i32`
-LL |     let g = &x;
 LL |     *x = 0;
    |     ^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn f(x: &mut i32) {
+   |         ~~~~~~~~
 
 error[E0506]: cannot assign to `*x` because it is borrowed
   --> $DIR/issue-57989.rs:5:5
diff --git a/src/test/ui/pattern/move-ref-patterns/borrowck-move-ref-pattern.stderr b/src/test/ui/pattern/move-ref-patterns/borrowck-move-ref-pattern.stderr
index bb7b818368b78..1b93267b39771 100644
--- a/src/test/ui/pattern/move-ref-patterns/borrowck-move-ref-pattern.stderr
+++ b/src/test/ui/pattern/move-ref-patterns/borrowck-move-ref-pattern.stderr
@@ -104,20 +104,24 @@ LL |     *_x0 = U;
 error[E0594]: cannot assign to `*_x0`, which is behind a `&` reference
   --> $DIR/borrowck-move-ref-pattern.rs:26:5
    |
-LL |     let (ref _x0, _x1, ref _x2, ..) = tup;
-   |          ------- help: consider changing this to be a mutable reference: `ref mut _x0`
-...
 LL |     *_x0 = U;
    |     ^^^^^^^^ `_x0` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let (ref mut _x0, _x1, ref _x2, ..) = tup;
+   |          ~~~~~~~~~~~
 
 error[E0594]: cannot assign to `*_x2`, which is behind a `&` reference
   --> $DIR/borrowck-move-ref-pattern.rs:27:5
    |
-LL |     let (ref _x0, _x1, ref _x2, ..) = tup;
-   |                        ------- help: consider changing this to be a mutable reference: `ref mut _x2`
-...
 LL |     *_x2 = U;
    |     ^^^^^^^^ `_x2` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let (ref _x0, _x1, ref mut _x2, ..) = tup;
+   |                        ~~~~~~~~~~~
 
 error[E0382]: use of moved value: `tup.1`
   --> $DIR/borrowck-move-ref-pattern.rs:28:10
diff --git a/src/test/ui/span/borrowck-borrow-overloaded-auto-deref-mut.stderr b/src/test/ui/span/borrowck-borrow-overloaded-auto-deref-mut.stderr
index e4ec9f875765a..20330c92325e4 100644
--- a/src/test/ui/span/borrowck-borrow-overloaded-auto-deref-mut.stderr
+++ b/src/test/ui/span/borrowck-borrow-overloaded-auto-deref-mut.stderr
@@ -9,10 +9,13 @@ LL |     let __isize = &mut x.y;
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:65:10
    |
-LL | fn deref_extend_mut_field1(x: &Own<Point>) -> &mut isize {
-   |                               ----------- help: consider changing this to be a mutable reference: `&mut Own<Point>`
 LL |     &mut x.y
    |          ^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn deref_extend_mut_field1(x: &mut Own<Point>) -> &mut isize {
+   |                               ~~~~~~~~~~~~~~~
 
 error[E0499]: cannot borrow `*x` as mutable more than once at a time
   --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:78:19
@@ -35,10 +38,13 @@ LL |     x.y = 3;
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:92:5
    |
-LL | fn assign_field2<'a>(x: &'a Own<Point>) {
-   |                         -------------- help: consider changing this to be a mutable reference: `&'a mut Own<Point>`
 LL |     x.y = 3;
    |     ^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn assign_field2<'a>(x: &'a mut Own<Point>) {
+   |                         ~~~~~~~~~~~~~~~~~~
 
 error[E0499]: cannot borrow `*x` as mutable more than once at a time
   --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:101:5
@@ -61,10 +67,13 @@ LL |     x.set(0, 0);
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:121:5
    |
-LL | fn deref_extend_mut_method1(x: &Own<Point>) -> &mut isize {
-   |                                ----------- help: consider changing this to be a mutable reference: `&mut Own<Point>`
 LL |     x.y_mut()
    |     ^^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn deref_extend_mut_method1(x: &mut Own<Point>) -> &mut isize {
+   |                                ~~~~~~~~~~~~~~~
 
 error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable
   --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:129:6
@@ -77,10 +86,13 @@ LL |     *x.y_mut() = 3;
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:133:6
    |
-LL | fn assign_method2<'a>(x: &'a Own<Point>) {
-   |                          -------------- help: consider changing this to be a mutable reference: `&'a mut Own<Point>`
 LL |     *x.y_mut() = 3;
    |      ^^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn assign_method2<'a>(x: &'a mut Own<Point>) {
+   |                          ~~~~~~~~~~~~~~~~~~
 
 error: aborting due to 10 previous errors
 
diff --git a/src/test/ui/span/borrowck-borrow-overloaded-deref-mut.stderr b/src/test/ui/span/borrowck-borrow-overloaded-deref-mut.stderr
index 3ebfba7e4debe..6d34909e43b96 100644
--- a/src/test/ui/span/borrowck-borrow-overloaded-deref-mut.stderr
+++ b/src/test/ui/span/borrowck-borrow-overloaded-deref-mut.stderr
@@ -9,10 +9,13 @@ LL |     let __isize = &mut *x;
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-borrow-overloaded-deref-mut.rs:41:11
    |
-LL | fn deref_extend_mut1<'a>(x: &'a Own<isize>) -> &'a mut isize {
-   |                             -------------- help: consider changing this to be a mutable reference: `&'a mut Own<isize>`
 LL |     &mut **x
    |           ^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn deref_extend_mut1<'a>(x: &'a mut Own<isize>) -> &'a mut isize {
+   |                             ~~~~~~~~~~~~~~~~~~
 
 error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable
   --> $DIR/borrowck-borrow-overloaded-deref-mut.rs:49:6
@@ -25,10 +28,13 @@ LL |     *x = 3;
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-borrow-overloaded-deref-mut.rs:53:6
    |
-LL | fn assign2<'a>(x: &'a Own<isize>) {
-   |                   -------------- help: consider changing this to be a mutable reference: `&'a mut Own<isize>`
 LL |     **x = 3;
    |      ^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn assign2<'a>(x: &'a mut Own<isize>) {
+   |                   ~~~~~~~~~~~~~~~~~~
 
 error: aborting due to 4 previous errors
 
diff --git a/src/test/ui/span/borrowck-call-is-borrow-issue-12224.stderr b/src/test/ui/span/borrowck-call-is-borrow-issue-12224.stderr
index 6b43801b5e074..48b42bc78253f 100644
--- a/src/test/ui/span/borrowck-call-is-borrow-issue-12224.stderr
+++ b/src/test/ui/span/borrowck-call-is-borrow-issue-12224.stderr
@@ -13,18 +13,24 @@ LL |         f((Box::new(|| {})))
 error[E0596]: cannot borrow `*f` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-call-is-borrow-issue-12224.rs:25:5
    |
-LL | fn test2<F>(f: &F) where F: FnMut() {
-   |                -- help: consider changing this to be a mutable reference: `&mut F`
 LL |     (*f)();
    |     ^^^^ `f` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn test2<F>(f: &mut F) where F: FnMut() {
+   |                ~~~~~~
 
 error[E0596]: cannot borrow `f.f` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-call-is-borrow-issue-12224.rs:34:5
    |
-LL | fn test4(f: &Test) {
-   |             ----- help: consider changing this to be a mutable reference: `&mut Test<'_>`
 LL |     f.f.call_mut(())
    |     ^^^^^^^^^^^^^^^^ `f` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn test4(f: &mut Test<'_>) {
+   |             ~~~~~~~~~~~~~
 
 error[E0507]: cannot move out of `f`, a captured variable in an `FnMut` closure
   --> $DIR/borrowck-call-is-borrow-issue-12224.rs:57:13
diff --git a/src/test/ui/span/borrowck-call-method-from-mut-aliasable.stderr b/src/test/ui/span/borrowck-call-method-from-mut-aliasable.stderr
index 1864f5de108cd..2a842f5a2a9f8 100644
--- a/src/test/ui/span/borrowck-call-method-from-mut-aliasable.stderr
+++ b/src/test/ui/span/borrowck-call-method-from-mut-aliasable.stderr
@@ -1,11 +1,13 @@
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-call-method-from-mut-aliasable.rs:17:5
    |
-LL | fn b(x: &Foo) {
-   |         ---- help: consider changing this to be a mutable reference: `&mut Foo`
-LL |     x.f();
 LL |     x.h();
    |     ^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn b(x: &mut Foo) {
+   |         ~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/span/borrowck-fn-in-const-b.stderr b/src/test/ui/span/borrowck-fn-in-const-b.stderr
index 1f5d8bd32bb57..1df19deb12f6b 100644
--- a/src/test/ui/span/borrowck-fn-in-const-b.stderr
+++ b/src/test/ui/span/borrowck-fn-in-const-b.stderr
@@ -1,10 +1,13 @@
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-fn-in-const-b.rs:7:9
    |
-LL |     fn broken(x: &Vec<String>) {
-   |                  ------------ help: consider changing this to be a mutable reference: `&mut Vec<String>`
 LL |         x.push(format!("this is broken"));
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn broken(x: &mut Vec<String>) {
+   |                  ~~~~~~~~~~~~~~~~
 
 error: aborting due to previous error
 
diff --git a/src/test/ui/span/borrowck-object-mutability.stderr b/src/test/ui/span/borrowck-object-mutability.stderr
index cc43f6d0928da..e63ca95eff01d 100644
--- a/src/test/ui/span/borrowck-object-mutability.stderr
+++ b/src/test/ui/span/borrowck-object-mutability.stderr
@@ -1,11 +1,13 @@
 error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference
   --> $DIR/borrowck-object-mutability.rs:8:5
    |
-LL | fn borrowed_receiver(x: &dyn Foo) {
-   |                         -------- help: consider changing this to be a mutable reference: `&mut dyn Foo`
-LL |     x.borrowed();
 LL |     x.borrowed_mut();
    |     ^^^^^^^^^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn borrowed_receiver(x: &mut dyn Foo) {
+   |                         ~~~~~~~~~~~~
 
 error[E0596]: cannot borrow `*x` as mutable, as `x` is not declared as mutable
   --> $DIR/borrowck-object-mutability.rs:18:5
diff --git a/src/test/ui/span/mut-arg-hint.stderr b/src/test/ui/span/mut-arg-hint.stderr
index 8a7c504f0053b..96ce4d5bc6c33 100644
--- a/src/test/ui/span/mut-arg-hint.stderr
+++ b/src/test/ui/span/mut-arg-hint.stderr
@@ -1,26 +1,35 @@
 error[E0596]: cannot borrow `*a` as mutable, as it is behind a `&` reference
   --> $DIR/mut-arg-hint.rs:3:9
    |
-LL |     fn foo(mut a: &String) {
-   |                   ------- help: consider changing this to be a mutable reference: `&mut String`
 LL |         a.push_str("bar");
    |         ^^^^^^^^^^^^^^^^^ `a` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn foo(mut a: &mut String) {
+   |                   ~~~~~~~~~~~
 
 error[E0596]: cannot borrow `*a` as mutable, as it is behind a `&` reference
   --> $DIR/mut-arg-hint.rs:8:5
    |
-LL | pub fn foo<'a>(mut a: &'a String) {
-   |                       ---------- help: consider changing this to be a mutable reference: `&'a mut String`
 LL |     a.push_str("foo");
    |     ^^^^^^^^^^^^^^^^^ `a` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | pub fn foo<'a>(mut a: &'a mut String) {
+   |                       ~~~~~~~~~~~~~~
 
 error[E0596]: cannot borrow `*a` as mutable, as it is behind a `&` reference
   --> $DIR/mut-arg-hint.rs:15:9
    |
-LL |     pub fn foo(mut a: &String) {
-   |                       ------- help: consider changing this to be a mutable reference: `&mut String`
 LL |         a.push_str("foo");
    |         ^^^^^^^^^^^^^^^^^ `a` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     pub fn foo(mut a: &mut String) {
+   |                       ~~~~~~~~~~~
 
 error: aborting due to 3 previous errors
 
diff --git a/src/test/ui/suggestions/issue-68049-2.stderr b/src/test/ui/suggestions/issue-68049-2.stderr
index 2f31193e4a4a2..de35aa5b186b5 100644
--- a/src/test/ui/suggestions/issue-68049-2.stderr
+++ b/src/test/ui/suggestions/issue-68049-2.stderr
@@ -1,20 +1,24 @@
 error[E0594]: cannot assign to `*input`, which is behind a `&` reference
   --> $DIR/issue-68049-2.rs:9:7
    |
-LL |   fn example(&self, input: &i32); // should suggest here
-   |                            ---- help: consider changing that to be a mutable reference: `&mut i32`
-...
 LL |       *input = self.0;
    |       ^^^^^^^^^^^^^^^ `input` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing that to be a mutable reference
+   |
+LL |   fn example(&self, input: &mut i32); // should suggest here
+   |                            ~~~~~~~~
 
 error[E0594]: cannot assign to `self.0`, which is behind a `&` reference
   --> $DIR/issue-68049-2.rs:17:5
    |
-LL |   fn example(&self, input: &i32); // should suggest here
-   |              ----- help: consider changing that to be a mutable reference: `&mut self`
-...
 LL |     self.0 += *input;
    |     ^^^^^^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing that to be a mutable reference
+   |
+LL |   fn example(&mut self, input: &i32); // should suggest here
+   |              ~~~~~~~~~
 
 error: aborting due to 2 previous errors
 
diff --git a/src/test/ui/suggestions/suggest-ref-mut.stderr b/src/test/ui/suggestions/suggest-ref-mut.stderr
index 9fd2658ec702d..7973759bf5ec7 100644
--- a/src/test/ui/suggestions/suggest-ref-mut.stderr
+++ b/src/test/ui/suggestions/suggest-ref-mut.stderr
@@ -1,37 +1,46 @@
 error[E0594]: cannot assign to `self.0`, which is behind a `&` reference
   --> $DIR/suggest-ref-mut.rs:7:9
    |
-LL |     fn zap(&self) {
-   |            ----- help: consider changing this to be a mutable reference: `&mut self`
-...
 LL |         self.0 = 32;
    |         ^^^^^^^^^^^ `self` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     fn zap(&mut self) {
+   |            ~~~~~~~~~
 
 error[E0594]: cannot assign to `*foo`, which is behind a `&` reference
   --> $DIR/suggest-ref-mut.rs:16:5
    |
-LL |     let ref foo = 16;
-   |         ------- help: consider changing this to be a mutable reference: `ref mut foo`
-...
 LL |     *foo = 32;
    |     ^^^^^^^^^ `foo` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     let ref mut foo = 16;
+   |         ~~~~~~~~~~~
 
 error[E0594]: cannot assign to `*bar`, which is behind a `&` reference
   --> $DIR/suggest-ref-mut.rs:21:9
    |
-LL |     if let Some(ref bar) = Some(16) {
-   |                 ------- help: consider changing this to be a mutable reference: `ref mut bar`
-...
 LL |         *bar = 32;
    |         ^^^^^^^^^ `bar` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |     if let Some(ref mut bar) = Some(16) {
+   |                 ~~~~~~~~~~~
 
 error[E0594]: cannot assign to `*quo`, which is behind a `&` reference
   --> $DIR/suggest-ref-mut.rs:25:22
    |
 LL |         ref quo => { *quo = 32; },
-   |         -------      ^^^^^^^^^ `quo` is a `&` reference, so the data it refers to cannot be written
-   |         |
-   |         help: consider changing this to be a mutable reference: `ref mut quo`
+   |                      ^^^^^^^^^ `quo` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this to be a mutable reference
+   |
+LL |         ref mut quo => { *quo = 32; },
+   |         ~~~~~~~~~~~
 
 error: aborting due to 4 previous errors
 
diff --git a/src/test/ui/trivial-bounds/trivial-bounds-inconsistent-copy-reborrow.stderr b/src/test/ui/trivial-bounds/trivial-bounds-inconsistent-copy-reborrow.stderr
index aac119afda544..39b60c3119727 100644
--- a/src/test/ui/trivial-bounds/trivial-bounds-inconsistent-copy-reborrow.stderr
+++ b/src/test/ui/trivial-bounds/trivial-bounds-inconsistent-copy-reborrow.stderr
@@ -1,18 +1,24 @@
 error[E0596]: cannot borrow `**t` as mutable, as it is behind a `&` reference
   --> $DIR/trivial-bounds-inconsistent-copy-reborrow.rs:6:5
    |
-LL | fn reborrow_mut<'a>(t: &'a &'a mut i32) -> &'a mut i32 where &'a mut i32: Copy {
-   |                        --------------- help: consider changing this to be a mutable reference: `&'a mut &'a mut i32`
 LL |     *t
    |     ^^ `t` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn reborrow_mut<'a>(t: &'a mut &'a mut i32) -> &'a mut i32 where &'a mut i32: Copy {
+   |                        ~~~~~~~~~~~~~~~~~~~
 
 error[E0596]: cannot borrow `**t` as mutable, as it is behind a `&` reference
   --> $DIR/trivial-bounds-inconsistent-copy-reborrow.rs:10:6
    |
-LL | fn copy_reborrow_mut<'a>(t: &'a &'a mut i32) -> &'a mut i32 where &'a mut i32: Copy {
-   |                             --------------- help: consider changing this to be a mutable reference: `&'a mut &'a mut i32`
 LL |     {*t}
    |      ^^ `t` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this to be a mutable reference
+   |
+LL | fn copy_reborrow_mut<'a>(t: &'a mut &'a mut i32) -> &'a mut i32 where &'a mut i32: Copy {
+   |                             ~~~~~~~~~~~~~~~~~~~
 
 error: aborting due to 2 previous errors
 
diff --git a/src/tools/tidy/src/error_codes_check.rs b/src/tools/tidy/src/error_codes_check.rs
index fd870b0997ce0..a5b4320006b76 100644
--- a/src/tools/tidy/src/error_codes_check.rs
+++ b/src/tools/tidy/src/error_codes_check.rs
@@ -11,8 +11,8 @@ use regex::Regex;
 
 // A few of those error codes can't be tested but all the others can and *should* be tested!
 const EXEMPTED_FROM_TEST: &[&str] = &[
-    "E0313", "E0461", "E0465", "E0476", "E0490", "E0514", "E0523", "E0554", "E0640", "E0717",
-    "E0729", "E0789",
+    "E0313", "E0461", "E0476", "E0490", "E0514", "E0523", "E0554", "E0640", "E0717", "E0729",
+    "E0789",
 ];
 
 // Some error codes don't have any tests apparently...