Auto merge of #145978 - Zalathar:rollup-0dzk72g, r=Zalathar

Rollup of 9 pull requests

Successful merges:

 - rust-lang/rust#143713 (Add a mailmap entry for gnzlbg)
 - rust-lang/rust#144275 (implement Sum and Product for Saturating(u*))
 - rust-lang/rust#144354 (fix(std): Fix undefined reference to __my_thread_exit on QNX 8.0)
 - rust-lang/rust#145387 (Remove TmpLayout in layout_of_enum)
 - rust-lang/rust#145793 (std library: use execinfo library also on NetBSD.)
 - rust-lang/rust#145884 (Test `instrument-mcount` codegen)
 - rust-lang/rust#145947 (Add more to the `[workspace.dependencies]` section in the top-level `Cargo.toml`)
 - rust-lang/rust#145972 (fix `core::marker::Destruct` doc)
 - rust-lang/rust#145977 (tests: Ignore basic-stepping.rs on riscv64)

r? `@ghost`
`@rustbot` modify labels: rollup

35 files changed, 71 insertions, 94 deletions

diff --git a/compiler/rustc_abi/src/layout.rs b/compiler/rustc_abi/src/layout.rs
index c2405553756..5004d0c8022 100644
--- a/compiler/rustc_abi/src/layout.rs
+++ b/compiler/rustc_abi/src/layout.rs
@@ -594,23 +594,13 @@ impl<Cx: HasDataLayout> LayoutCalculator<Cx> {
         discr_range_of_repr: impl Fn(i128, i128) -> (Integer, bool),
         discriminants: impl Iterator<Item = (VariantIdx, i128)>,
     ) -> LayoutCalculatorResult<FieldIdx, VariantIdx, F> {
-        // Until we've decided whether to use the tagged or
-        // niche filling LayoutData, we don't want to intern the
-        // variant layouts, so we can't store them in the
-        // overall LayoutData. Store the overall LayoutData
-        // and the variant LayoutDatas here until then.
-        struct TmpLayout<FieldIdx: Idx, VariantIdx: Idx> {
-            layout: LayoutData<FieldIdx, VariantIdx>,
-            variants: IndexVec<VariantIdx, LayoutData<FieldIdx, VariantIdx>>,
-        }
-
         let dl = self.cx.data_layout();
         // bail if the enum has an incoherent repr that cannot be computed
         if repr.packed() {
             return Err(LayoutCalculatorError::ReprConflict);
         }
 
-        let calculate_niche_filling_layout = || -> Option<TmpLayout<FieldIdx, VariantIdx>> {
+        let calculate_niche_filling_layout = || -> Option<LayoutData<FieldIdx, VariantIdx>> {
             if repr.inhibit_enum_layout_opt() {
                 return None;
             }
@@ -746,7 +736,7 @@ impl<Cx: HasDataLayout> LayoutCalculator<Cx> {
                         niche_start,
                     },
                     tag_field: FieldIdx::new(0),
-                    variants: IndexVec::new(),
+                    variants: variant_layouts,
                 },
                 fields: FieldsShape::Arbitrary {
                     offsets: [niche_offset].into(),
@@ -762,7 +752,7 @@ impl<Cx: HasDataLayout> LayoutCalculator<Cx> {
                 randomization_seed: combined_seed,
             };
 
-            Some(TmpLayout { layout, variants: variant_layouts })
+            Some(layout)
         };
 
         let niche_filling_layout = calculate_niche_filling_layout();
@@ -1093,7 +1083,7 @@ impl<Cx: HasDataLayout> LayoutCalculator<Cx> {
                 tag,
                 tag_encoding: TagEncoding::Direct,
                 tag_field: FieldIdx::new(0),
-                variants: IndexVec::new(),
+                variants: layout_variants,
             },
             fields: FieldsShape::Arbitrary {
                 offsets: [Size::ZERO].into(),
@@ -1109,18 +1099,16 @@ impl<Cx: HasDataLayout> LayoutCalculator<Cx> {
             randomization_seed: combined_seed,
         };
 
-        let tagged_layout = TmpLayout { layout: tagged_layout, variants: layout_variants };
-
-        let mut best_layout = match (tagged_layout, niche_filling_layout) {
+        let best_layout = match (tagged_layout, niche_filling_layout) {
             (tl, Some(nl)) => {
                 // Pick the smaller layout; otherwise,
                 // pick the layout with the larger niche; otherwise,
                 // pick tagged as it has simpler codegen.
                 use cmp::Ordering::*;
-                let niche_size = |tmp_l: &TmpLayout<FieldIdx, VariantIdx>| {
-                    tmp_l.layout.largest_niche.map_or(0, |n| n.available(dl))
+                let niche_size = |l: &LayoutData<FieldIdx, VariantIdx>| {
+                    l.largest_niche.map_or(0, |n| n.available(dl))
                 };
-                match (tl.layout.size.cmp(&nl.layout.size), niche_size(&tl).cmp(&niche_size(&nl))) {
+                match (tl.size.cmp(&nl.size), niche_size(&tl).cmp(&niche_size(&nl))) {
                     (Greater, _) => nl,
                     (Equal, Less) => nl,
                     _ => tl,
@@ -1129,16 +1117,7 @@ impl<Cx: HasDataLayout> LayoutCalculator<Cx> {
             (tl, None) => tl,
         };
 
-        // Now we can intern the variant layouts and store them in the enum layout.
-        best_layout.layout.variants = match best_layout.layout.variants {
-            Variants::Multiple { tag, tag_encoding, tag_field, .. } => {
-                Variants::Multiple { tag, tag_encoding, tag_field, variants: best_layout.variants }
-            }
-            Variants::Single { .. } | Variants::Empty => {
-                panic!("encountered a single-variant or empty enum during multi-variant layout")
-            }
-        };
-        Ok(best_layout.layout)
+        Ok(best_layout)
     }
 
     fn univariant_biased<
diff --git a/compiler/rustc_ast/Cargo.toml b/compiler/rustc_ast/Cargo.toml
index 0b8ab7c391c..7f948a65220 100644
--- a/compiler/rustc_ast/Cargo.toml
+++ b/compiler/rustc_ast/Cargo.toml
@@ -16,5 +16,5 @@ rustc_serialize = { path = "../rustc_serialize" }
 rustc_span = { path = "../rustc_span" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
 thin-vec.workspace = true
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_borrowck/Cargo.toml b/compiler/rustc_borrowck/Cargo.toml
index 3162e9da1ba..5f9dc41766b 100644
--- a/compiler/rustc_borrowck/Cargo.toml
+++ b/compiler/rustc_borrowck/Cargo.toml
@@ -5,9 +5,9 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-either = "1.5.0"
+either.workspace = true
 itertools.workspace = true
-polonius-engine = "0.13.0"
+polonius-engine.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_errors = { path = "../rustc_errors" }
diff --git a/compiler/rustc_codegen_llvm/Cargo.toml b/compiler/rustc_codegen_llvm/Cargo.toml
index 26d20acbe28..b04310f3d54 100644
--- a/compiler/rustc_codegen_llvm/Cargo.toml
+++ b/compiler/rustc_codegen_llvm/Cargo.toml
@@ -13,10 +13,10 @@ bitflags.workspace = true
 # by `rustc_codegen_ssa` via its `thorin-dwp` dependency.
 gimli = "0.31"
 itertools.workspace = true
-libc = "0.2"
-measureme = "12.0.1"
+libc.workspace = true
+measureme.workspace = true
 object = { version = "0.37.0", default-features = false, features = ["std", "read"] }
-rustc-demangle = "0.1.21"
+rustc-demangle.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_ast = { path = "../rustc_ast" }
 rustc_codegen_ssa = { path = "../rustc_codegen_ssa" }
@@ -38,7 +38,7 @@ rustc_span = { path = "../rustc_span" }
 rustc_symbol_mangling = { path = "../rustc_symbol_mangling" }
 rustc_target = { path = "../rustc_target" }
 serde = { version = "1", features = ["derive"] }
-serde_json = "1"
+serde_json.workspace = true
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
 tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_codegen_ssa/Cargo.toml b/compiler/rustc_codegen_ssa/Cargo.toml
index 6b989a96488..57e1fee2c0a 100644
--- a/compiler/rustc_codegen_ssa/Cargo.toml
+++ b/compiler/rustc_codegen_ssa/Cargo.toml
@@ -37,9 +37,9 @@ rustc_span = { path = "../rustc_span" }
 rustc_symbol_mangling = { path = "../rustc_symbol_mangling" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
-serde_json = "1.0.59"
+serde_json.workspace = true
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-tempfile = "3.2"
+tempfile.workspace = true
 thin-vec.workspace = true
 thorin-dwp = "0.9"
 tracing.workspace = true
@@ -48,7 +48,7 @@ wasm-encoder = "0.219"
 
 [target.'cfg(unix)'.dependencies]
 # tidy-alphabetical-start
-libc = "0.2.50"
+libc.workspace = true
 # tidy-alphabetical-end
 
 [dependencies.object]
diff --git a/compiler/rustc_const_eval/Cargo.toml b/compiler/rustc_const_eval/Cargo.toml
index 88dfc83f7fc..acf19b0f2fc 100644
--- a/compiler/rustc_const_eval/Cargo.toml
+++ b/compiler/rustc_const_eval/Cargo.toml
@@ -5,9 +5,9 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-either = "1"
+either.workspace = true
 rustc_abi = { path = "../rustc_abi" }
-rustc_apfloat = "0.2.0"
+rustc_apfloat.workspace = true
 rustc_ast = { path = "../rustc_ast" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_errors = { path = "../rustc_errors" }
diff --git a/compiler/rustc_data_structures/Cargo.toml b/compiler/rustc_data_structures/Cargo.toml
index 0ac9e02508a..852fc11350b 100644
--- a/compiler/rustc_data_structures/Cargo.toml
+++ b/compiler/rustc_data_structures/Cargo.toml
@@ -7,14 +7,14 @@ edition = "2024"
 # tidy-alphabetical-start
 arrayvec = { version = "0.7", default-features = false }
 bitflags.workspace = true
-either = "1.0"
+either.workspace = true
 elsa = "1.11.0"
 ena = "0.14.3"
-indexmap = "2.4.0"
+indexmap.workspace = true
 jobserver_crate = { version = "0.1.28", package = "jobserver" }
-measureme = "12.0.1"
+measureme.workspace = true
 parking_lot = "0.12"
-rustc-hash = "2.0.0"
+rustc-hash.workspace = true
 rustc-stable-hash = { version = "0.1.0", features = ["nightly"] }
 rustc_arena = { path = "../rustc_arena" }
 rustc_graphviz = { path = "../rustc_graphviz" }
@@ -25,7 +25,7 @@ rustc_serialize = { path = "../rustc_serialize" }
 rustc_thread_pool = { path = "../rustc_thread_pool" }
 smallvec = { version = "1.8.1", features = ["const_generics", "union", "may_dangle"] }
 stacker = "0.1.17"
-tempfile = "3.2"
+tempfile.workspace = true
 thin-vec.workspace = true
 tracing.workspace = true
 # tidy-alphabetical-end
@@ -47,7 +47,7 @@ features = [
 
 [target.'cfg(unix)'.dependencies]
 # tidy-alphabetical-start
-libc = "0.2"
+libc.workspace = true
 # tidy-alphabetical-end
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
diff --git a/compiler/rustc_driver_impl/Cargo.toml b/compiler/rustc_driver_impl/Cargo.toml
index 7e9af054aff..196c8aa3547 100644
--- a/compiler/rustc_driver_impl/Cargo.toml
+++ b/compiler/rustc_driver_impl/Cargo.toml
@@ -49,14 +49,14 @@ rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
 rustc_ty_utils = { path = "../rustc_ty_utils" }
-serde_json = "1.0.59"
+serde_json.workspace = true
 shlex = "1.0"
 tracing.workspace = true
 # tidy-alphabetical-end
 
 [target.'cfg(all(unix, any(target_env = "gnu", target_os = "macos")))'.dependencies]
 # tidy-alphabetical-start
-libc = "0.2"
+libc.workspace = true
 # tidy-alphabetical-end
 
 [target.'cfg(windows)'.dependencies.windows]
diff --git a/compiler/rustc_errors/Cargo.toml b/compiler/rustc_errors/Cargo.toml
index f5853855673..67a17ce88fa 100644
--- a/compiler/rustc_errors/Cargo.toml
+++ b/compiler/rustc_errors/Cargo.toml
@@ -21,7 +21,7 @@ rustc_macros = { path = "../rustc_macros" }
 rustc_serialize = { path = "../rustc_serialize" }
 rustc_span = { path = "../rustc_span" }
 serde = { version = "1.0.125", features = ["derive"] }
-serde_json = "1.0.59"
+serde_json.workspace = true
 termcolor = "1.2.0"
 termize = "0.2"
 tracing.workspace = true
diff --git a/compiler/rustc_feature/Cargo.toml b/compiler/rustc_feature/Cargo.toml
index a4746ac455c..b58f2375852 100644
--- a/compiler/rustc_feature/Cargo.toml
+++ b/compiler/rustc_feature/Cargo.toml
@@ -9,5 +9,5 @@ rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_hir = { path = "../rustc_hir" }
 rustc_span = { path = "../rustc_span" }
 serde = { version = "1.0.125", features = ["derive"] }
-serde_json = "1.0.59"
+serde_json.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_fluent_macro/Cargo.toml b/compiler/rustc_fluent_macro/Cargo.toml
index d7ef4280aef..60afd9aca87 100644
--- a/compiler/rustc_fluent_macro/Cargo.toml
+++ b/compiler/rustc_fluent_macro/Cargo.toml
@@ -11,8 +11,8 @@ proc-macro = true
 annotate-snippets = "0.11"
 fluent-bundle = "0.16"
 fluent-syntax = "0.12"
-proc-macro2 = "1"
-quote = "1"
+proc-macro2.workspace = true
+quote.workspace = true
 syn = { version = "2", features = ["full"] }
 unic-langid = { version = "0.9.0", features = ["macros"] }
 # tidy-alphabetical-end
diff --git a/compiler/rustc_fs_util/Cargo.toml b/compiler/rustc_fs_util/Cargo.toml
index 90a6acade8b..37970e81fea 100644
--- a/compiler/rustc_fs_util/Cargo.toml
+++ b/compiler/rustc_fs_util/Cargo.toml
@@ -5,5 +5,5 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-tempfile = "3.7.1"
+tempfile.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_hir/Cargo.toml b/compiler/rustc_hir/Cargo.toml
index ea72ed68c5e..e74fcfe7455 100644
--- a/compiler/rustc_hir/Cargo.toml
+++ b/compiler/rustc_hir/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 bitflags.workspace = true
-odht = { version = "0.3.1", features = ["nightly"] }
+odht.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_arena = { path = "../rustc_arena" }
 rustc_ast = { path = "../rustc_ast" }
diff --git a/compiler/rustc_index_macros/Cargo.toml b/compiler/rustc_index_macros/Cargo.toml
index 34f3109a526..8593bde2615 100644
--- a/compiler/rustc_index_macros/Cargo.toml
+++ b/compiler/rustc_index_macros/Cargo.toml
@@ -8,8 +8,8 @@ proc-macro = true
 
 [dependencies]
 # tidy-alphabetical-start
-proc-macro2 = "1"
-quote = "1"
+proc-macro2.workspace = true
+quote.workspace = true
 syn = { version = "2.0.9", features = ["full", "extra-traits"] }
 # tidy-alphabetical-end
 
diff --git a/compiler/rustc_llvm/Cargo.toml b/compiler/rustc_llvm/Cargo.toml
index cd352ce3d0f..e74de453be2 100644
--- a/compiler/rustc_llvm/Cargo.toml
+++ b/compiler/rustc_llvm/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-libc = "0.2.73"
+libc.workspace = true
 # tidy-alphabetical-end
 
 [build-dependencies]
diff --git a/compiler/rustc_macros/Cargo.toml b/compiler/rustc_macros/Cargo.toml
index f9d3b758359..5add2691b88 100644
--- a/compiler/rustc_macros/Cargo.toml
+++ b/compiler/rustc_macros/Cargo.toml
@@ -8,8 +8,8 @@ proc-macro = true
 
 [dependencies]
 # tidy-alphabetical-start
-proc-macro2 = "1"
-quote = "1"
+proc-macro2.workspace = true
+quote.workspace = true
 syn = { version = "2.0.9", features = ["full"] }
 synstructure = "0.13.0"
 # tidy-alphabetical-end
diff --git a/compiler/rustc_metadata/Cargo.toml b/compiler/rustc_metadata/Cargo.toml
index 4bb9e49ccce..a8f3dd18353 100644
--- a/compiler/rustc_metadata/Cargo.toml
+++ b/compiler/rustc_metadata/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2024"
 # tidy-alphabetical-start
 bitflags.workspace = true
 libloading = "0.8.0"
-odht = { version = "0.3.1", features = ["nightly"] }
+odht.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_ast = { path = "../rustc_ast" }
 rustc_attr_parsing = { path = "../rustc_attr_parsing" }
@@ -30,11 +30,11 @@ rustc_serialize = { path = "../rustc_serialize" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
-tempfile = "3.7.1"
+tempfile.workspace = true
 tracing.workspace = true
 # tidy-alphabetical-end
 
 [target.'cfg(target_os = "aix")'.dependencies]
 # tidy-alphabetical-start
-libc = "0.2"
+libc.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_middle/Cargo.toml b/compiler/rustc_middle/Cargo.toml
index 782066981c9..f0832405567 100644
--- a/compiler/rustc_middle/Cargo.toml
+++ b/compiler/rustc_middle/Cargo.toml
@@ -6,11 +6,11 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 bitflags.workspace = true
-either = "1.5.0"
+either.workspace = true
 gsgdt = "0.1.2"
-polonius-engine = "0.13.0"
+polonius-engine.workspace = true
 rustc_abi = { path = "../rustc_abi" }
-rustc_apfloat = "0.2.0"
+rustc_apfloat.workspace = true
 rustc_arena = { path = "../rustc_arena" }
 rustc_ast = { path = "../rustc_ast" }
 rustc_ast_ir = { path = "../rustc_ast_ir" }
diff --git a/compiler/rustc_mir_build/Cargo.toml b/compiler/rustc_mir_build/Cargo.toml
index c3f7fdfcb00..440cb0bdbf3 100644
--- a/compiler/rustc_mir_build/Cargo.toml
+++ b/compiler/rustc_mir_build/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2024"
 # tidy-alphabetical-start
 itertools.workspace = true
 rustc_abi = { path = "../rustc_abi" }
-rustc_apfloat = "0.2.0"
+rustc_apfloat.workspace = true
 rustc_arena = { path = "../rustc_arena" }
 rustc_ast = { path = "../rustc_ast" }
 rustc_data_structures = { path = "../rustc_data_structures" }
diff --git a/compiler/rustc_mir_dataflow/Cargo.toml b/compiler/rustc_mir_dataflow/Cargo.toml
index e422f69c7ca..11713bb77f1 100644
--- a/compiler/rustc_mir_dataflow/Cargo.toml
+++ b/compiler/rustc_mir_dataflow/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-polonius-engine = "0.13.0"
+polonius-engine.workspace = true
 regex = "1"
 rustc_abi = { path = "../rustc_abi" }
 rustc_ast = { path = "../rustc_ast" }
diff --git a/compiler/rustc_mir_transform/Cargo.toml b/compiler/rustc_mir_transform/Cargo.toml
index 16acec15e92..99ef67e2625 100644
--- a/compiler/rustc_mir_transform/Cargo.toml
+++ b/compiler/rustc_mir_transform/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-either = "1"
+either.workspace = true
 itertools.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_arena = { path = "../rustc_arena" }
diff --git a/compiler/rustc_monomorphize/Cargo.toml b/compiler/rustc_monomorphize/Cargo.toml
index b11084cf169..78266d3c6d8 100644
--- a/compiler/rustc_monomorphize/Cargo.toml
+++ b/compiler/rustc_monomorphize/Cargo.toml
@@ -16,6 +16,6 @@ rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 serde = "1"
-serde_json = "1"
+serde_json.workspace = true
 tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_next_trait_solver/Cargo.toml b/compiler/rustc_next_trait_solver/Cargo.toml
index 8b66f30cf0e..43db90c08f3 100644
--- a/compiler/rustc_next_trait_solver/Cargo.toml
+++ b/compiler/rustc_next_trait_solver/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-derive-where = "1.2.7"
+derive-where.workspace = true
 rustc_data_structures = { path = "../rustc_data_structures", optional = true }
 rustc_index = { path = "../rustc_index", default-features = false }
 rustc_macros = { path = "../rustc_macros", optional = true }
diff --git a/compiler/rustc_pattern_analysis/Cargo.toml b/compiler/rustc_pattern_analysis/Cargo.toml
index 39f660c8771..e4909ab6d16 100644
--- a/compiler/rustc_pattern_analysis/Cargo.toml
+++ b/compiler/rustc_pattern_analysis/Cargo.toml
@@ -5,9 +5,9 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-rustc-hash = "2.0.0"
+rustc-hash.workspace = true
 rustc_abi = { path = "../rustc_abi", optional = true }
-rustc_apfloat = "0.2.0"
+rustc_apfloat.workspace = true
 rustc_arena = { path = "../rustc_arena", optional = true }
 rustc_data_structures = { path = "../rustc_data_structures", optional = true }
 rustc_errors = { path = "../rustc_errors", optional = true }
diff --git a/compiler/rustc_public/Cargo.toml b/compiler/rustc_public/Cargo.toml
index 71d339b5792..e67e4fe6739 100644
--- a/compiler/rustc_public/Cargo.toml
+++ b/compiler/rustc_public/Cargo.toml
@@ -12,7 +12,7 @@ rustc_public_bridge = { path = "../rustc_public_bridge" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
-scoped-tls = "1.0"
+scoped-tls.workspace = true
 serde = { version = "1.0.125", features = [ "derive" ] }
 tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_query_impl/Cargo.toml b/compiler/rustc_query_impl/Cargo.toml
index 2005b8b9eca..3d5cf0eb72d 100644
--- a/compiler/rustc_query_impl/Cargo.toml
+++ b/compiler/rustc_query_impl/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-measureme = "12.0.1"
+measureme.workspace = true 
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_hashes = { path = "../rustc_hashes" }
 rustc_hir = { path = "../rustc_hir" }
diff --git a/compiler/rustc_resolve/Cargo.toml b/compiler/rustc_resolve/Cargo.toml
index 7c5332c1662..4da4c0840df 100644
--- a/compiler/rustc_resolve/Cargo.toml
+++ b/compiler/rustc_resolve/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 bitflags.workspace = true
-indexmap = "2.4.0"
+indexmap.workspace = true
 itertools.workspace = true
 pulldown-cmark = { version = "0.11", features = ["html"], default-features = false }
 rustc_arena = { path = "../rustc_arena" }
diff --git a/compiler/rustc_serialize/Cargo.toml b/compiler/rustc_serialize/Cargo.toml
index e9959735f9f..853f87ebed9 100644
--- a/compiler/rustc_serialize/Cargo.toml
+++ b/compiler/rustc_serialize/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-indexmap = "2.0.0"
+indexmap.workspace = true
 rustc_hashes = { path = "../rustc_hashes" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
 thin-vec.workspace = true
@@ -14,5 +14,5 @@ thin-vec.workspace = true
 [dev-dependencies]
 # tidy-alphabetical-start
 rustc_macros = { path = "../rustc_macros" }
-tempfile = "3.2"
+tempfile.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_session/Cargo.toml b/compiler/rustc_session/Cargo.toml
index 97789b198a4..5870fb29ae8 100644
--- a/compiler/rustc_session/Cargo.toml
+++ b/compiler/rustc_session/Cargo.toml
@@ -27,10 +27,8 @@ tracing.workspace = true
 # tidy-alphabetical-end
 
 [target.'cfg(unix)'.dependencies]
-# FIXME: Remove this pin once this rustix issue is resolved
-# https://github.com/bytecodealliance/rustix/issues/1496
 # tidy-alphabetical-start
-libc = "=0.2.174"
+libc.workspace = true
 # tidy-alphabetical-end
 
 [target.'cfg(windows)'.dependencies.windows]
diff --git a/compiler/rustc_span/Cargo.toml b/compiler/rustc_span/Cargo.toml
index 2e45177e3b7..da6f2101d23 100644
--- a/compiler/rustc_span/Cargo.toml
+++ b/compiler/rustc_span/Cargo.toml
@@ -6,8 +6,8 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 blake3 = "1.5.2"
-derive-where = "1.2.7"
-indexmap = { version = "2.0.0" }
+derive-where.workspace = true
+indexmap.workspace = true
 itoa = "1.0"
 md5 = { package = "md-5", version = "0.10.0" }
 rustc_arena = { path = "../rustc_arena" }
@@ -16,7 +16,7 @@ rustc_hashes = { path = "../rustc_hashes" }
 rustc_index = { path = "../rustc_index" }
 rustc_macros = { path = "../rustc_macros" }
 rustc_serialize = { path = "../rustc_serialize" }
-scoped-tls = "1.0"
+scoped-tls.workspace = true
 sha1 = "0.10.0"
 sha2 = "0.10.1"
 tracing.workspace = true
diff --git a/compiler/rustc_symbol_mangling/Cargo.toml b/compiler/rustc_symbol_mangling/Cargo.toml
index 48e02dabdde..0ceac4b3e1b 100644
--- a/compiler/rustc_symbol_mangling/Cargo.toml
+++ b/compiler/rustc_symbol_mangling/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 punycode = "0.4.0"
-rustc-demangle = "0.1.21"
+rustc-demangle.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_errors = { path = "../rustc_errors" }
diff --git a/compiler/rustc_target/Cargo.toml b/compiler/rustc_target/Cargo.toml
index 3c257bf38a5..ed59ee2a575 100644
--- a/compiler/rustc_target/Cargo.toml
+++ b/compiler/rustc_target/Cargo.toml
@@ -16,7 +16,7 @@ rustc_serialize = { path = "../rustc_serialize" }
 rustc_span = { path = "../rustc_span" }
 serde = "1.0.219"
 serde_derive = "1.0.219"
-serde_json = "1.0.59"
+serde_json.workspace = true
 serde_path_to_error = "0.1.17"
 tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_thread_pool/Cargo.toml b/compiler/rustc_thread_pool/Cargo.toml
index c92984470b7..8e8c6469512 100644
--- a/compiler/rustc_thread_pool/Cargo.toml
+++ b/compiler/rustc_thread_pool/Cargo.toml
@@ -20,10 +20,10 @@ smallvec = "1.8.1"
 [dev-dependencies]
 rand = "0.9"
 rand_xorshift = "0.4"
-scoped-tls = "1.0"
+scoped-tls.workspace = true
 
 [target.'cfg(unix)'.dev-dependencies]
-libc = "0.2"
+libc.workspace = true
 
 [[test]]
 name = "stack_overflow_crash"
diff --git a/compiler/rustc_type_ir/Cargo.toml b/compiler/rustc_type_ir/Cargo.toml
index 1dba7fe4269..42860fa2d88 100644
--- a/compiler/rustc_type_ir/Cargo.toml
+++ b/compiler/rustc_type_ir/Cargo.toml
@@ -6,10 +6,10 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 bitflags.workspace = true
-derive-where = "1.2.7"
+derive-where.workspace = true
 ena = "0.14.3"
-indexmap = "2.0.0"
-rustc-hash = "2.0.0"
+indexmap.workspace = true
+rustc-hash.workspace = true
 rustc_ast_ir = { path = "../rustc_ast_ir", default-features = false }
 rustc_data_structures = { path = "../rustc_data_structures", optional = true }
 rustc_error_messages = { path = "../rustc_error_messages", optional = true }
diff --git a/compiler/rustc_type_ir_macros/Cargo.toml b/compiler/rustc_type_ir_macros/Cargo.toml
index 15a55575099..29a2cc89033 100644
--- a/compiler/rustc_type_ir_macros/Cargo.toml
+++ b/compiler/rustc_type_ir_macros/Cargo.toml
@@ -8,8 +8,8 @@ proc-macro = true
 
 [dependencies]
 # tidy-alphabetical-start
-proc-macro2 = "1"
-quote = "1"
+proc-macro2.workspace = true
+quote.workspace = true
 syn = { version = "2.0.9", features = ["full"] }
 synstructure = "0.13.0"
 # tidy-alphabetical-end