diff --git a/Cargo.toml b/Cargo.toml
index 67c7a9d67edc8..bccef87a17da2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -59,6 +59,16 @@ exclude = [
   "obj",
 ]
 
+[workspace.dependencies]
+# tidy-alphabetical-start
+bitflags = "2.9.1"
+itertools = "0.12.1"
+memchr = "2.7.5"
+rustc-literal-escaper = "0.0.5"
+thin-vec = "0.2.14"
+tracing = "0.1.37"
+# tidy-alphabetical-end
+
 [profile.release.package.rustc_thread_pool]
 # The rustc fork of Rayon has deadlock detection code which intermittently
 # causes overflows in the CI (see https://github.com/rust-lang/rust/issues/90227)
diff --git a/compiler/rustc_abi/Cargo.toml b/compiler/rustc_abi/Cargo.toml
index 83d96d8d04daf..3de6d186b8ab0 100644
--- a/compiler/rustc_abi/Cargo.toml
+++ b/compiler/rustc_abi/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
+bitflags.workspace = true
 rand = { version = "0.9.0", default-features = false, optional = true }
 rand_xoshiro = { version = "0.7.0", optional = true }
 rustc_data_structures = { path = "../rustc_data_structures", optional = true }
@@ -15,7 +15,7 @@ rustc_index = { path = "../rustc_index", default-features = false }
 rustc_macros = { path = "../rustc_macros", optional = true }
 rustc_serialize = { path = "../rustc_serialize", optional = true }
 rustc_span = { path = "../rustc_span", optional = true }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [features]
diff --git a/compiler/rustc_ast/Cargo.toml b/compiler/rustc_ast/Cargo.toml
index 155e14a3796ee..0b8ab7c391c21 100644
--- a/compiler/rustc_ast/Cargo.toml
+++ b/compiler/rustc_ast/Cargo.toml
@@ -5,9 +5,9 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
-memchr = "2.7.4"
-rustc-literal-escaper = "0.0.5"
+bitflags.workspace = true
+memchr.workspace = true
+rustc-literal-escaper.workspace = true
 rustc_ast_ir = { path = "../rustc_ast_ir" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_index = { path = "../rustc_index" }
@@ -15,6 +15,6 @@ rustc_macros = { path = "../rustc_macros" }
 rustc_serialize = { path = "../rustc_serialize" }
 rustc_span = { path = "../rustc_span" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-thin-vec = "0.2.12"
+thin-vec.workspace = true
 tracing = "0.1"
 # tidy-alphabetical-end
diff --git a/compiler/rustc_ast_lowering/Cargo.toml b/compiler/rustc_ast_lowering/Cargo.toml
index 6ac258155fe94..317742a3bb825 100644
--- a/compiler/rustc_ast_lowering/Cargo.toml
+++ b/compiler/rustc_ast_lowering/Cargo.toml
@@ -24,6 +24,6 @@ rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_ast_passes/Cargo.toml b/compiler/rustc_ast_passes/Cargo.toml
index 1940628b44a53..93c9d4406731b 100644
--- a/compiler/rustc_ast_passes/Cargo.toml
+++ b/compiler/rustc_ast_passes/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-itertools = "0.12"
+itertools.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_ast = { path = "../rustc_ast" }
 rustc_ast_pretty = { path = "../rustc_ast_pretty" }
@@ -19,5 +19,5 @@ rustc_parse = { path = "../rustc_parse" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
-thin-vec = "0.2.12"
+thin-vec.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_ast_pretty/Cargo.toml b/compiler/rustc_ast_pretty/Cargo.toml
index b704040be9618..0c7e55305b485 100644
--- a/compiler/rustc_ast_pretty/Cargo.toml
+++ b/compiler/rustc_ast_pretty/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-itertools = "0.12"
+itertools.workspace = true
 rustc_ast = { path = "../rustc_ast" }
 rustc_lexer = { path = "../rustc_lexer" }
 rustc_span = { path = "../rustc_span" }
@@ -13,5 +13,5 @@ rustc_span = { path = "../rustc_span" }
 
 [dev-dependencies]
 # tidy-alphabetical-start
-thin-vec = "0.2.12"
+thin-vec.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_attr_parsing/Cargo.toml b/compiler/rustc_attr_parsing/Cargo.toml
index cec9d62e6560c..3d0e64b0ba700 100644
--- a/compiler/rustc_attr_parsing/Cargo.toml
+++ b/compiler/rustc_attr_parsing/Cargo.toml
@@ -16,5 +16,5 @@ rustc_lexer = { path = "../rustc_lexer" }
 rustc_macros = { path = "../rustc_macros" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
-thin-vec = "0.2.12"
+thin-vec.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_borrowck/Cargo.toml b/compiler/rustc_borrowck/Cargo.toml
index 9e7d55180a233..3162e9da1ba63 100644
--- a/compiler/rustc_borrowck/Cargo.toml
+++ b/compiler/rustc_borrowck/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 either = "1.5.0"
-itertools = "0.12"
+itertools.workspace = true
 polonius-engine = "0.13.0"
 rustc_abi = { path = "../rustc_abi" }
 rustc_data_structures = { path = "../rustc_data_structures" }
@@ -25,5 +25,5 @@ rustc_span = { path = "../rustc_span" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
 rustc_traits = { path = "../rustc_traits" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_builtin_macros/Cargo.toml b/compiler/rustc_builtin_macros/Cargo.toml
index e56b9e641a10b..9ca44d671503d 100644
--- a/compiler/rustc_builtin_macros/Cargo.toml
+++ b/compiler/rustc_builtin_macros/Cargo.toml
@@ -30,6 +30,6 @@ rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_codegen_llvm/Cargo.toml b/compiler/rustc_codegen_llvm/Cargo.toml
index 2d11628250cd2..26d20acbe28f6 100644
--- a/compiler/rustc_codegen_llvm/Cargo.toml
+++ b/compiler/rustc_codegen_llvm/Cargo.toml
@@ -8,11 +8,11 @@ test = false
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
+bitflags.workspace = true
 # To avoid duplicate dependencies, this should match the version of gimli used
 # by `rustc_codegen_ssa` via its `thorin-dwp` dependency.
 gimli = "0.31"
-itertools = "0.12"
+itertools.workspace = true
 libc = "0.2"
 measureme = "12.0.1"
 object = { version = "0.37.0", default-features = false, features = ["std", "read"] }
@@ -40,7 +40,7 @@ rustc_target = { path = "../rustc_target" }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [features]
diff --git a/compiler/rustc_codegen_ssa/Cargo.toml b/compiler/rustc_codegen_ssa/Cargo.toml
index 6a8971de7461e..6b989a964882e 100644
--- a/compiler/rustc_codegen_ssa/Cargo.toml
+++ b/compiler/rustc_codegen_ssa/Cargo.toml
@@ -6,12 +6,12 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 ar_archive_writer = "0.4.2"
-bitflags = "2.4.1"
+bitflags.workspace = true
 bstr = "1.11.3"
 # `cc` updates often break things, so we pin it here. Cargo enforces "max 1 semver-compat version
 # per crate", so if you change this, you need to also change it in `rustc_llvm`.
 cc = "=1.2.16"
-itertools = "0.12"
+itertools.workspace = true
 pathdiff = "0.2.0"
 regex = "1.4"
 rustc_abi = { path = "../rustc_abi" }
@@ -40,9 +40,9 @@ rustc_trait_selection = { path = "../rustc_trait_selection" }
 serde_json = "1.0.59"
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
 tempfile = "3.2"
-thin-vec = "0.2.12"
+thin-vec.workspace = true
 thorin-dwp = "0.9"
-tracing = "0.1"
+tracing.workspace = true
 wasm-encoder = "0.219"
 # tidy-alphabetical-end
 
diff --git a/compiler/rustc_const_eval/Cargo.toml b/compiler/rustc_const_eval/Cargo.toml
index 51dcee8d88227..88dfc83f7fc3e 100644
--- a/compiler/rustc_const_eval/Cargo.toml
+++ b/compiler/rustc_const_eval/Cargo.toml
@@ -22,5 +22,5 @@ rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_data_structures/Cargo.toml b/compiler/rustc_data_structures/Cargo.toml
index 17204883fb033..aa964806a870b 100644
--- a/compiler/rustc_data_structures/Cargo.toml
+++ b/compiler/rustc_data_structures/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 arrayvec = { version = "0.7", default-features = false }
-bitflags = "2.4.1"
+bitflags.workspace = true
 either = "1.0"
 elsa = "1.11.0"
 ena = "0.14.3"
@@ -25,8 +25,8 @@ 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"
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [dependencies.hashbrown]
diff --git a/compiler/rustc_driver_impl/Cargo.toml b/compiler/rustc_driver_impl/Cargo.toml
index ae1dbd2cf5148..7e9af054aff63 100644
--- a/compiler/rustc_driver_impl/Cargo.toml
+++ b/compiler/rustc_driver_impl/Cargo.toml
@@ -51,7 +51,7 @@ rustc_trait_selection = { path = "../rustc_trait_selection" }
 rustc_ty_utils = { path = "../rustc_ty_utils" }
 serde_json = "1.0.59"
 shlex = "1.0"
-tracing = { version = "0.1.35" }
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [target.'cfg(all(unix, any(target_env = "gnu", target_os = "macos")))'.dependencies]
diff --git a/compiler/rustc_error_messages/Cargo.toml b/compiler/rustc_error_messages/Cargo.toml
index 552ad672752dc..ce5106aae0a46 100644
--- a/compiler/rustc_error_messages/Cargo.toml
+++ b/compiler/rustc_error_messages/Cargo.toml
@@ -18,6 +18,6 @@ rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_macros = { path = "../rustc_macros" }
 rustc_serialize = { path = "../rustc_serialize" }
 rustc_span = { path = "../rustc_span" }
-tracing = "0.1"
+tracing.workspace = true
 unic-langid = { version = "0.9.0", features = ["macros"] }
 # tidy-alphabetical-end
diff --git a/compiler/rustc_errors/Cargo.toml b/compiler/rustc_errors/Cargo.toml
index ad6d29e21fc40..7bccfffd1011d 100644
--- a/compiler/rustc_errors/Cargo.toml
+++ b/compiler/rustc_errors/Cargo.toml
@@ -24,7 +24,7 @@ serde = { version = "1.0.125", features = ["derive"] }
 serde_json = "1.0.59"
 termcolor = "1.2.0"
 termize = "0.2"
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [target.'cfg(windows)'.dependencies.windows]
diff --git a/compiler/rustc_expand/Cargo.toml b/compiler/rustc_expand/Cargo.toml
index f897833d85c00..9bb7143af51ee 100644
--- a/compiler/rustc_expand/Cargo.toml
+++ b/compiler/rustc_expand/Cargo.toml
@@ -29,6 +29,6 @@ rustc_serialize = { path = "../rustc_serialize" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_hir/Cargo.toml b/compiler/rustc_hir/Cargo.toml
index 1008a3e787d01..ea72ed68c5ef7 100644
--- a/compiler/rustc_hir/Cargo.toml
+++ b/compiler/rustc_hir/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.9.1"
+bitflags.workspace = true
 odht = { version = "0.3.1", features = ["nightly"] }
 rustc_abi = { path = "../rustc_abi" }
 rustc_arena = { path = "../rustc_arena" }
@@ -21,6 +21,6 @@ rustc_serialize = { path = "../rustc_serialize" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_hir_analysis/Cargo.toml b/compiler/rustc_hir_analysis/Cargo.toml
index e5017794d8f29..bb86beb225146 100644
--- a/compiler/rustc_hir_analysis/Cargo.toml
+++ b/compiler/rustc_hir_analysis/Cargo.toml
@@ -9,7 +9,7 @@ doctest = false
 
 [dependencies]
 # tidy-alphabetical-start
-itertools = "0.12"
+itertools.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_arena = { path = "../rustc_arena" }
 rustc_ast = { path = "../rustc_ast" }
@@ -29,5 +29,5 @@ rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_hir_typeck/Cargo.toml b/compiler/rustc_hir_typeck/Cargo.toml
index f00125c3e090a..5af0c6134cabb 100644
--- a/compiler/rustc_hir_typeck/Cargo.toml
+++ b/compiler/rustc_hir_typeck/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-itertools = "0.12"
+itertools.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_ast = { path = "../rustc_ast" }
 rustc_attr_parsing = { path = "../rustc_attr_parsing" }
@@ -25,5 +25,5 @@ rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_incremental/Cargo.toml b/compiler/rustc_incremental/Cargo.toml
index db0a584188755..8d7f2eb841474 100644
--- a/compiler/rustc_incremental/Cargo.toml
+++ b/compiler/rustc_incremental/Cargo.toml
@@ -19,6 +19,6 @@ rustc_middle = { path = "../rustc_middle" }
 rustc_serialize = { path = "../rustc_serialize" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_infer/Cargo.toml b/compiler/rustc_infer/Cargo.toml
index 08c0361488493..6d97fa6af1f4d 100644
--- a/compiler/rustc_infer/Cargo.toml
+++ b/compiler/rustc_infer/Cargo.toml
@@ -18,6 +18,6 @@ rustc_middle = { path = "../rustc_middle" }
 rustc_span = { path = "../rustc_span" }
 rustc_type_ir = { path = "../rustc_type_ir" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_interface/Cargo.toml b/compiler/rustc_interface/Cargo.toml
index 473ac5e0cea4a..40152e78f8aa7 100644
--- a/compiler/rustc_interface/Cargo.toml
+++ b/compiler/rustc_interface/Cargo.toml
@@ -46,7 +46,7 @@ rustc_thread_pool = { path = "../rustc_thread_pool" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
 rustc_traits = { path = "../rustc_traits" }
 rustc_ty_utils = { path = "../rustc_ty_utils" }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [dev-dependencies]
diff --git a/compiler/rustc_lexer/Cargo.toml b/compiler/rustc_lexer/Cargo.toml
index 448a50faf458e..b46f395a132ee 100644
--- a/compiler/rustc_lexer/Cargo.toml
+++ b/compiler/rustc_lexer/Cargo.toml
@@ -14,7 +14,7 @@ Rust lexer used by rustc. No stability guarantees are provided.
 
 # Note that this crate purposefully does not depend on other rustc crates
 [dependencies]
-memchr = "2.7.4"
+memchr.workspace = true
 unicode-xid = "0.2.0"
 
 [dependencies.unicode-properties]
diff --git a/compiler/rustc_lint/Cargo.toml b/compiler/rustc_lint/Cargo.toml
index 7718f16984dab..7900e4b9ab220 100644
--- a/compiler/rustc_lint/Cargo.toml
+++ b/compiler/rustc_lint/Cargo.toml
@@ -24,6 +24,6 @@ rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-tracing = "0.1"
+tracing.workspace = true
 unicode-security = "0.1.0"
 # tidy-alphabetical-end
diff --git a/compiler/rustc_log/Cargo.toml b/compiler/rustc_log/Cargo.toml
index c673d51a1d456..e9d7b4723f82c 100644
--- a/compiler/rustc_log/Cargo.toml
+++ b/compiler/rustc_log/Cargo.toml
@@ -5,10 +5,10 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-tracing = "0.1.28"
 tracing-core = "=0.1.30" # FIXME(Nilstrieb) tracing has a deadlock: https://github.com/tokio-rs/tracing/issues/2635
 tracing-subscriber = { version = "0.3.3", default-features = false, features = ["fmt", "env-filter", "smallvec", "parking_lot", "ansi"] }
 tracing-tree = "0.3.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [features]
diff --git a/compiler/rustc_metadata/Cargo.toml b/compiler/rustc_metadata/Cargo.toml
index 1b40d9f684efc..4bb9e49ccced8 100644
--- a/compiler/rustc_metadata/Cargo.toml
+++ b/compiler/rustc_metadata/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
+bitflags.workspace = true
 libloading = "0.8.0"
 odht = { version = "0.3.1", features = ["nightly"] }
 rustc_abi = { path = "../rustc_abi" }
@@ -31,7 +31,7 @@ rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 tempfile = "3.7.1"
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [target.'cfg(target_os = "aix")'.dependencies]
diff --git a/compiler/rustc_middle/Cargo.toml b/compiler/rustc_middle/Cargo.toml
index fbcce16cedca8..782066981c9cd 100644
--- a/compiler/rustc_middle/Cargo.toml
+++ b/compiler/rustc_middle/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
+bitflags.workspace = true
 either = "1.5.0"
 gsgdt = "0.1.2"
 polonius-engine = "0.13.0"
@@ -34,8 +34,8 @@ rustc_target = { path = "../rustc_target" }
 rustc_thread_pool = { path = "../rustc_thread_pool" }
 rustc_type_ir = { path = "../rustc_type_ir" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [features]
diff --git a/compiler/rustc_mir_build/Cargo.toml b/compiler/rustc_mir_build/Cargo.toml
index f756f0a19ee9b..c3f7fdfcb0020 100644
--- a/compiler/rustc_mir_build/Cargo.toml
+++ b/compiler/rustc_mir_build/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-itertools = "0.12"
+itertools.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_apfloat = "0.2.0"
 rustc_arena = { path = "../rustc_arena" }
@@ -23,5 +23,5 @@ rustc_pattern_analysis = { path = "../rustc_pattern_analysis" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_mir_dataflow/Cargo.toml b/compiler/rustc_mir_dataflow/Cargo.toml
index 9621f9f20bdc8..e422f69c7ca07 100644
--- a/compiler/rustc_mir_dataflow/Cargo.toml
+++ b/compiler/rustc_mir_dataflow/Cargo.toml
@@ -18,5 +18,5 @@ rustc_macros = { path = "../rustc_macros" }
 rustc_middle = { path = "../rustc_middle" }
 rustc_span = { path = "../rustc_span" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_mir_transform/Cargo.toml b/compiler/rustc_mir_transform/Cargo.toml
index 08c43a4648c67..16acec15e923c 100644
--- a/compiler/rustc_mir_transform/Cargo.toml
+++ b/compiler/rustc_mir_transform/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 either = "1"
-itertools = "0.12"
+itertools.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_arena = { path = "../rustc_arena" }
 rustc_ast = { path = "../rustc_ast" }
@@ -26,5 +26,5 @@ rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_monomorphize/Cargo.toml b/compiler/rustc_monomorphize/Cargo.toml
index 09a55f0b5f8da..b11084cf169e9 100644
--- a/compiler/rustc_monomorphize/Cargo.toml
+++ b/compiler/rustc_monomorphize/Cargo.toml
@@ -17,5 +17,5 @@ rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 serde = "1"
 serde_json = "1"
-tracing = "0.1"
+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 05bcabad02f9b..8b66f30cf0e97 100644
--- a/compiler/rustc_next_trait_solver/Cargo.toml
+++ b/compiler/rustc_next_trait_solver/Cargo.toml
@@ -11,7 +11,7 @@ rustc_index = { path = "../rustc_index", default-features = false }
 rustc_macros = { path = "../rustc_macros", optional = true }
 rustc_type_ir = { path = "../rustc_type_ir", default-features = false }
 rustc_type_ir_macros = { path = "../rustc_type_ir_macros" }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [features]
diff --git a/compiler/rustc_parse/Cargo.toml b/compiler/rustc_parse/Cargo.toml
index 0ae0b613fa27f..c4494d4c5aefe 100644
--- a/compiler/rustc_parse/Cargo.toml
+++ b/compiler/rustc_parse/Cargo.toml
@@ -5,8 +5,8 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
-rustc-literal-escaper = "0.0.5"
+bitflags.workspace = true
+rustc-literal-escaper.workspace = true
 rustc_ast = { path = "../rustc_ast" }
 rustc_ast_pretty = { path = "../rustc_ast_pretty" }
 rustc_attr_parsing = { path = "../rustc_attr_parsing" }
@@ -19,8 +19,8 @@ rustc_lexer = { path = "../rustc_lexer" }
 rustc_macros = { path = "../rustc_macros" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 unicode-normalization = "0.1.11"
 unicode-width = "0.2.0"
 # tidy-alphabetical-end
diff --git a/compiler/rustc_parse_format/Cargo.toml b/compiler/rustc_parse_format/Cargo.toml
index d178fcda1fb9f..645e34b6e3224 100644
--- a/compiler/rustc_parse_format/Cargo.toml
+++ b/compiler/rustc_parse_format/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-rustc-literal-escaper = "0.0.5"
+rustc-literal-escaper.workspace = true
 rustc_lexer = { path = "../rustc_lexer" }
 # tidy-alphabetical-end
 
diff --git a/compiler/rustc_passes/Cargo.toml b/compiler/rustc_passes/Cargo.toml
index ba81ef3103bd9..c74608a614678 100644
--- a/compiler/rustc_passes/Cargo.toml
+++ b/compiler/rustc_passes/Cargo.toml
@@ -24,5 +24,5 @@ rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_pattern_analysis/Cargo.toml b/compiler/rustc_pattern_analysis/Cargo.toml
index a59f7bbeb9e5e..39f660c8771d5 100644
--- a/compiler/rustc_pattern_analysis/Cargo.toml
+++ b/compiler/rustc_pattern_analysis/Cargo.toml
@@ -19,7 +19,7 @@ rustc_middle = { path = "../rustc_middle", optional = true }
 rustc_session = { path = "../rustc_session", optional = true }
 rustc_span = { path = "../rustc_span", optional = true }
 smallvec = { version = "1.8.1", features = ["union"] }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [dev-dependencies]
diff --git a/compiler/rustc_privacy/Cargo.toml b/compiler/rustc_privacy/Cargo.toml
index c8bfdb913041c..7de58132e1346 100644
--- a/compiler/rustc_privacy/Cargo.toml
+++ b/compiler/rustc_privacy/Cargo.toml
@@ -15,5 +15,5 @@ rustc_middle = { path = "../rustc_middle" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_ty_utils = { path = "../rustc_ty_utils" }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_proc_macro/Cargo.toml b/compiler/rustc_proc_macro/Cargo.toml
index beb95aa3b52f2..99e7fc7abc6d3 100644
--- a/compiler/rustc_proc_macro/Cargo.toml
+++ b/compiler/rustc_proc_macro/Cargo.toml
@@ -16,7 +16,7 @@ doctest = false
 
 [dependencies]
 # tidy-alphabetical-start
-rustc-literal-escaper = "0.0.5"
+rustc-literal-escaper.workspace = true
 # tidy-alphabetical-end
 
 [features]
diff --git a/compiler/rustc_public/Cargo.toml b/compiler/rustc_public/Cargo.toml
index 70af30c1a5f46..71d339b5792a0 100644
--- a/compiler/rustc_public/Cargo.toml
+++ b/compiler/rustc_public/Cargo.toml
@@ -14,7 +14,7 @@ rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 scoped-tls = "1.0"
 serde = { version = "1.0.125", features = [ "derive" ] }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [features]
diff --git a/compiler/rustc_query_impl/Cargo.toml b/compiler/rustc_query_impl/Cargo.toml
index e5cceacf15da8..2005b8b9eca50 100644
--- a/compiler/rustc_query_impl/Cargo.toml
+++ b/compiler/rustc_query_impl/Cargo.toml
@@ -15,5 +15,5 @@ rustc_query_system = { path = "../rustc_query_system" }
 rustc_serialize = { path = "../rustc_serialize" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_query_system/Cargo.toml b/compiler/rustc_query_system/Cargo.toml
index 7480ba03474f9..0df933bc81c0b 100644
--- a/compiler/rustc_query_system/Cargo.toml
+++ b/compiler/rustc_query_system/Cargo.toml
@@ -21,7 +21,7 @@ rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_thread_pool = { path = "../rustc_thread_pool" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [dependencies.hashbrown]
diff --git a/compiler/rustc_resolve/Cargo.toml b/compiler/rustc_resolve/Cargo.toml
index eb98a6e85c06b..7c5332c166238 100644
--- a/compiler/rustc_resolve/Cargo.toml
+++ b/compiler/rustc_resolve/Cargo.toml
@@ -5,9 +5,9 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
+bitflags.workspace = true
 indexmap = "2.4.0"
-itertools = "0.12"
+itertools.workspace = true
 pulldown-cmark = { version = "0.11", features = ["html"], default-features = false }
 rustc_arena = { path = "../rustc_arena" }
 rustc_ast = { path = "../rustc_ast" }
@@ -27,6 +27,6 @@ rustc_query_system = { path = "../rustc_query_system" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_sanitizers/Cargo.toml b/compiler/rustc_sanitizers/Cargo.toml
index 9069d2c233db7..3dbeaa435f307 100644
--- a/compiler/rustc_sanitizers/Cargo.toml
+++ b/compiler/rustc_sanitizers/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.5.0"
+bitflags.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_hir = { path = "../rustc_hir" }
@@ -13,6 +13,6 @@ rustc_middle = { path = "../rustc_middle" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
-tracing = "0.1"
+tracing.workspace = true
 twox-hash = "1.6.3"
 # tidy-alphabetical-end
diff --git a/compiler/rustc_serialize/Cargo.toml b/compiler/rustc_serialize/Cargo.toml
index 948242352e7a8..e9959735f9f2e 100644
--- a/compiler/rustc_serialize/Cargo.toml
+++ b/compiler/rustc_serialize/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2024"
 indexmap = "2.0.0"
 rustc_hashes = { path = "../rustc_hashes" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-thin-vec = "0.2.12"
+thin-vec.workspace = true
 # tidy-alphabetical-end
 
 [dev-dependencies]
diff --git a/compiler/rustc_session/Cargo.toml b/compiler/rustc_session/Cargo.toml
index 0516982aeabb9..fa91df5f65567 100644
--- a/compiler/rustc_session/Cargo.toml
+++ b/compiler/rustc_session/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
+bitflags.workspace = true
 getopts = "0.2"
 rand = "0.9.0"
 rustc_abi = { path = "../rustc_abi" }
@@ -23,7 +23,7 @@ rustc_serialize = { path = "../rustc_serialize" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 termize = "0.2"
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [target.'cfg(unix)'.dependencies]
diff --git a/compiler/rustc_span/Cargo.toml b/compiler/rustc_span/Cargo.toml
index 43a2d692577eb..2e45177e3b744 100644
--- a/compiler/rustc_span/Cargo.toml
+++ b/compiler/rustc_span/Cargo.toml
@@ -19,6 +19,6 @@ rustc_serialize = { path = "../rustc_serialize" }
 scoped-tls = "1.0"
 sha1 = "0.10.0"
 sha2 = "0.10.1"
-tracing = "0.1"
+tracing.workspace = true
 unicode-width = "0.2.0"
 # tidy-alphabetical-end
diff --git a/compiler/rustc_symbol_mangling/Cargo.toml b/compiler/rustc_symbol_mangling/Cargo.toml
index 0df9c7682bf8a..48e02dabdde74 100644
--- a/compiler/rustc_symbol_mangling/Cargo.toml
+++ b/compiler/rustc_symbol_mangling/Cargo.toml
@@ -15,5 +15,5 @@ rustc_hir = { path = "../rustc_hir" }
 rustc_middle = { path = "../rustc_middle" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_target/Cargo.toml b/compiler/rustc_target/Cargo.toml
index 57c90a703f119..7ad2a33276180 100644
--- a/compiler/rustc_target/Cargo.toml
+++ b/compiler/rustc_target/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
+bitflags.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_error_messages = { path = "../rustc_error_messages" }
@@ -17,7 +17,7 @@ serde = "1.0.219"
 serde_derive = "1.0.219"
 serde_json = "1.0.59"
 serde_path_to_error = "0.1.17"
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [dependencies.object]
diff --git a/compiler/rustc_trait_selection/Cargo.toml b/compiler/rustc_trait_selection/Cargo.toml
index 1071105522d11..6b79b98d1bf5d 100644
--- a/compiler/rustc_trait_selection/Cargo.toml
+++ b/compiler/rustc_trait_selection/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-itertools = "0.12"
+itertools.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_ast = { path = "../rustc_ast" }
 rustc_data_structures = { path = "../rustc_data_structures" }
@@ -21,6 +21,6 @@ rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_transmute = { path = "../rustc_transmute", features = ["rustc"] }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-thin-vec = "0.2"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_traits/Cargo.toml b/compiler/rustc_traits/Cargo.toml
index 9f40f4d5c23ea..24360a94cc7f6 100644
--- a/compiler/rustc_traits/Cargo.toml
+++ b/compiler/rustc_traits/Cargo.toml
@@ -10,5 +10,5 @@ rustc_infer = { path = "../rustc_infer" }
 rustc_middle = { path = "../rustc_middle" }
 rustc_span = { path = "../rustc_span" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_transmute/Cargo.toml b/compiler/rustc_transmute/Cargo.toml
index e61717e5e9ce2..2ac2b46cc58f4 100644
--- a/compiler/rustc_transmute/Cargo.toml
+++ b/compiler/rustc_transmute/Cargo.toml
@@ -11,12 +11,12 @@ rustc_hir = { path = "../rustc_hir", optional = true }
 rustc_middle = { path = "../rustc_middle", optional = true }
 rustc_span = { path = "../rustc_span", optional = true }
 smallvec = "1.8.1"
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [dev-dependencies]
 # tidy-alphabetical-start
-itertools = "0.12"
+itertools.workspace = true
 # tidy-alphabetical-end
 
 [features]
diff --git a/compiler/rustc_ty_utils/Cargo.toml b/compiler/rustc_ty_utils/Cargo.toml
index ce08b300cc800..394cde5a32342 100644
--- a/compiler/rustc_ty_utils/Cargo.toml
+++ b/compiler/rustc_ty_utils/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-itertools = "0.12"
+itertools.workspace = true
 rustc_abi = { path = "../rustc_abi" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_errors = { path = "../rustc_errors" }
@@ -20,5 +20,5 @@ rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
-tracing = "0.1"
+tracing.workspace = true
 # tidy-alphabetical-end
diff --git a/compiler/rustc_type_ir/Cargo.toml b/compiler/rustc_type_ir/Cargo.toml
index d55e9b3b1be82..1dba7fe426930 100644
--- a/compiler/rustc_type_ir/Cargo.toml
+++ b/compiler/rustc_type_ir/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-bitflags = "2.4.1"
+bitflags.workspace = true
 derive-where = "1.2.7"
 ena = "0.14.3"
 indexmap = "2.0.0"
@@ -19,8 +19,8 @@ rustc_serialize = { path = "../rustc_serialize", optional = true }
 rustc_span = { path = "../rustc_span", optional = true }
 rustc_type_ir_macros = { path = "../rustc_type_ir_macros" }
 smallvec = { version = "1.8.1", default-features = false, features = ["const_generics"] }
-thin-vec = "0.2.12"
-tracing = "0.1"
+thin-vec.workspace = true
+tracing.workspace = true
 # tidy-alphabetical-end
 
 [features]
diff --git a/src/librustdoc/Cargo.toml b/src/librustdoc/Cargo.toml
index 5d36ffc2d3a52..02a3a4e0de404 100644
--- a/src/librustdoc/Cargo.toml
+++ b/src/librustdoc/Cargo.toml
@@ -13,7 +13,7 @@ arrayvec = { version = "0.7", default-features = false }
 askama = { version = "0.14", default-features = false, features = ["alloc", "config", "derive"] }
 base64 = "0.21.7"
 indexmap = "2"
-itertools = "0.12"
+itertools.workspace = true
 minifier = { version = "0.3.5", default-features = false }
 pulldown-cmark-escape = { version = "0.11.0", features = ["simd"] }
 regex = "1"
@@ -24,8 +24,8 @@ smallvec = "1.8.1"
 stringdex = { version = "0.0.1-alpha4" }
 tempfile = "3"
 threadpool = "1.8.1"
-tracing = "0.1"
 tracing-tree = "0.3.0"
+tracing.workspace = true
 unicode-segmentation = "1.9"
 # tidy-alphabetical-end
 
diff --git a/src/tools/clippy/Cargo.toml b/src/tools/clippy/Cargo.toml
index daf1c98cdc946..0015ee432930e 100644
--- a/src/tools/clippy/Cargo.toml
+++ b/src/tools/clippy/Cargo.toml
@@ -41,7 +41,7 @@ serde_json = "1.0.122"
 toml = "0.7.3"
 walkdir = "2.3"
 filetime = "0.2.9"
-itertools = "0.12"
+itertools.workspace = true
 pulldown-cmark = { version = "0.11", default-features = false, features = ["html"] }
 askama = { version = "0.14", default-features = false, features = ["alloc", "config", "derive"] }
 
diff --git a/src/tools/clippy/clippy_config/Cargo.toml b/src/tools/clippy/clippy_config/Cargo.toml
index 6ad2cf0d0b104..acfb6ced62dbc 100644
--- a/src/tools/clippy/clippy_config/Cargo.toml
+++ b/src/tools/clippy/clippy_config/Cargo.toml
@@ -8,7 +8,7 @@ publish = false
 
 [dependencies]
 clippy_utils = { path = "../clippy_utils" }
-itertools = "0.12"
+itertools.workspace = true
 serde = { version = "1.0", features = ["derive"] }
 toml = "0.7.3"
 
diff --git a/src/tools/clippy/clippy_dev/Cargo.toml b/src/tools/clippy/clippy_dev/Cargo.toml
index 10c08dba50b90..f7540bb3032dd 100644
--- a/src/tools/clippy/clippy_dev/Cargo.toml
+++ b/src/tools/clippy/clippy_dev/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2024"
 chrono = { version = "0.4.38", default-features = false, features = ["clock"] }
 clap = { version = "4.4", features = ["derive"] }
 indoc = "1.0"
-itertools = "0.12"
+itertools.workspace = true
 opener = "0.7"
 walkdir = "2.3"
 
diff --git a/src/tools/clippy/clippy_lints/Cargo.toml b/src/tools/clippy/clippy_lints/Cargo.toml
index b9e6de79cc05c..9463e50ecb0ca 100644
--- a/src/tools/clippy/clippy_lints/Cargo.toml
+++ b/src/tools/clippy/clippy_lints/Cargo.toml
@@ -14,7 +14,7 @@ cargo_metadata = "0.18"
 clippy_config = { path = "../clippy_config" }
 clippy_utils = { path = "../clippy_utils" }
 declare_clippy_lint = { path = "../declare_clippy_lint" }
-itertools = "0.12"
+itertools.workspace = true
 quine-mc_cluskey = "0.2"
 regex-syntax = "0.8"
 serde = { version = "1.0", features = ["derive"] }
diff --git a/src/tools/clippy/clippy_utils/Cargo.toml b/src/tools/clippy/clippy_utils/Cargo.toml
index bdf7431f29f29..f3df15544ffe1 100644
--- a/src/tools/clippy/clippy_utils/Cargo.toml
+++ b/src/tools/clippy/clippy_utils/Cargo.toml
@@ -11,7 +11,7 @@ categories = ["development-tools"]
 
 [dependencies]
 arrayvec = { version = "0.7", default-features = false }
-itertools = "0.12"
+itertools.workspace = true
 # FIXME(f16_f128): remove when no longer needed for parsing
 rustc_apfloat = "0.2.0"
 serde = { version = "1.0", features = ["derive"] }
diff --git a/src/tools/clippy/lintcheck/Cargo.toml b/src/tools/clippy/lintcheck/Cargo.toml
index 55e588f5ec736..174071ebb7115 100644
--- a/src/tools/clippy/lintcheck/Cargo.toml
+++ b/src/tools/clippy/lintcheck/Cargo.toml
@@ -16,7 +16,7 @@ clap = { version = "4.4", features = ["derive", "env"] }
 crossbeam-channel = "0.5.6"
 diff = "0.1.13"
 flate2 = "1.0"
-itertools = "0.13"
+itertools.workspace = true
 rayon = "1.5.1"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0.85"
diff --git a/src/tools/compiletest/Cargo.toml b/src/tools/compiletest/Cargo.toml
index cdada5a223062..220c29cec49cf 100644
--- a/src/tools/compiletest/Cargo.toml
+++ b/src/tools/compiletest/Cargo.toml
@@ -28,8 +28,8 @@ rustfix = "0.8.1"
 semver = { version = "1.0.23", features = ["serde"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-tracing = "0.1"
 tracing-subscriber = { version = "0.3.3", default-features = false, features = ["ansi", "env-filter", "fmt", "parking_lot", "smallvec"] }
+tracing.workspace = true
 unified-diff = "0.2.1"
 walkdir = "2"
 # tidy-alphabetical-end
diff --git a/src/tools/coverage-dump/Cargo.toml b/src/tools/coverage-dump/Cargo.toml
index 36a66f16030ec..2f703537b59e5 100644
--- a/src/tools/coverage-dump/Cargo.toml
+++ b/src/tools/coverage-dump/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 
 [dependencies]
 anyhow = "1.0.71"
-itertools = "0.12"
+itertools.workspace = true
 leb128 = "0.2.5"
 md5 = { package = "md-5" , version = "0.10.5" }
 miniz_oxide = "0.8.8"
diff --git a/src/tools/llvm-bitcode-linker/Cargo.toml b/src/tools/llvm-bitcode-linker/Cargo.toml
index a9210b562f330..f78f8b618d311 100644
--- a/src/tools/llvm-bitcode-linker/Cargo.toml
+++ b/src/tools/llvm-bitcode-linker/Cargo.toml
@@ -8,7 +8,7 @@ publish = false
 
 [dependencies]
 anyhow = "1.0"
-tracing = "0.1"
-tracing-subscriber = {version = "0.3.0", features = ["std"] }
+tracing.workspace = true
+tracing-subscriber = { version = "0.3.0", features = ["std"] }
 clap = { version = "4.3", features = ["derive"] }
 thiserror = "1.0.24"
diff --git a/src/tools/miri/Cargo.toml b/src/tools/miri/Cargo.toml
index 99111092d39e7..95a6f6c8bc048 100644
--- a/src/tools/miri/Cargo.toml
+++ b/src/tools/miri/Cargo.toml
@@ -26,7 +26,7 @@ measureme = "12"
 chrono = { version = "0.4.38", default-features = false }
 chrono-tz = "0.10"
 directories = "6"
-bitflags = "2.6"
+bitflags.workspace = true
 serde_json = { version = "1.0", optional = true }
 
 # Copied from `compiler/rustc/Cargo.toml`.
diff --git a/src/tools/rustfmt/Cargo.toml b/src/tools/rustfmt/Cargo.toml
index e497b79234202..c4914da90c509 100644
--- a/src/tools/rustfmt/Cargo.toml
+++ b/src/tools/rustfmt/Cargo.toml
@@ -43,14 +43,14 @@ diff = "0.1"
 dirs = "5.0"
 getopts = "0.2"
 ignore = "0.4"
-itertools = "0.12"
+itertools.workspace = true
 regex = "1.7"
 serde = { version = "1.0.160", features = ["derive"] }
 serde_json = "1.0"
 term = "0.7"
 thiserror = "1.0.40"
 toml = "0.7.4"
-tracing = { version = "0.1.37", default-features = false, features = ["std"] }
+tracing.workspace = true
 tracing-subscriber = { version = "0.3.17", features = ["env-filter"] }
 unicode-segmentation = "1.9"
 unicode-width = "0.1"
diff --git a/src/tools/rustfmt/check_diff/Cargo.toml b/src/tools/rustfmt/check_diff/Cargo.toml
index 4ae8a5f1f3a05..1d9e357ce7145 100644
--- a/src/tools/rustfmt/check_diff/Cargo.toml
+++ b/src/tools/rustfmt/check_diff/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 
 [dependencies]
 clap = { version = "4.4.2", features = ["derive"] }
-tracing = "0.1.37"
+tracing.workspace = true
 tracing-subscriber = { version = "0.3.17", features = ["env-filter"] }
 [dev-dependencies]
 tempfile = "3"