1. The Unstable Book
2. 1. Compiler flags
3. 1. 1.1. branch_protection
   2. 1.2. cf_protection
   3. 1.3. codegen_backend
   4. 1.4. codegen_options
   5. 1.5. control_flow_guard
   6. 1.6. coverage_options
   7. 1.7. debug_info_for_profiling
   8. 1.8. default_visibility
   9. 1.9. direct_access_external_data
   10. 1.10. dump_mono_stats
   11. 1.11. dump_mono_stats_format
   12. 1.12. dwarf_version
   13. 1.13. dylib_lto
   14. 1.14. embed_source
   15. 1.15. emit_stack_sizes
   16. 1.16. env_set
   17. 1.17. export_executable_symbols
   18. 1.18. extern_options
   19. 1.19. external_clangrt
   20. 1.20. fixed_x18
   21. 1.21. fmt_debug
   22. 1.22. function_return
   23. 1.23. instrument_xray
   24. 1.24. link_native_libraries
   25. 1.25. linker_features
   26. 1.26. lint_llvm_ir
   27. 1.27. llvm_module_flag
   28. 1.28. location_detail
   29. 1.29. move_size_limit
   30. 1.30. no_jump_tables
   31. 1.31. no_parallel_llvm
   32. 1.32. no_unique_section_names
   33. 1.33. on_broken_pipe
   34. 1.34. patchable_function_entry
   35. 1.35. print_check_cfg
   36. 1.36. profile_sample_use
   37. 1.37. regparm
   38. 1.38. remap_cwd_prefix
   39. 1.39. remap_path_scope
   40. 1.40. report_time
   41. 1.41. sanitizer
   42. 1.42. self_profile
   43. 1.43. self_profile_events
   44. 1.44. shell_argfiles
   45. 1.45. small_data_threshold
   46. 1.46. src_hash_algorithm
   47. 1.47. temps_dir
   48. 1.48. tiny_const_eval_limit
   49. 1.49. tls_model
   50. 1.50. ub_checks
   51. 1.51. unsound_mir_opts
   52. 1.52. verbose_asm
   53. 1.53. virtual_function_elimination
   54. 1.54. wasm_c_abi
4. 2. Language features
5. 1. 2.1. aarch64_unstable_target_feature
   2. 2.2. aarch64_ver_target_feature
   3. 2.3. abi_avr_interrupt
   4. 2.4. abi_c_cmse_nonsecure_call
   5. 2.5. abi_msp430_interrupt
   6. 2.6. abi_ptx
   7. 2.7. abi_riscv_interrupt
   8. 2.8. abi_unadjusted
   9. 2.9. abi_vectorcall
   10. 2.10. abi_x86_interrupt
   11. 2.11. adt_const_params
   12. 2.12. alloc_error_handler
   13. 2.13. allocator_internals
   14. 2.14. allow_internal_unsafe
   15. 2.15. allow_internal_unstable
   16. 2.16. anonymous_lifetime_in_impl_trait
   17. 2.17. arbitrary_self_types
   18. 2.18. arbitrary_self_types_pointers
   19. 2.19. arm_target_feature
   20. 2.20. asm_experimental_arch
   21. 2.21. asm_goto
   22. 2.22. asm_unwind
   23. 2.23. associated_const_equality
   24. 2.24. associated_type_defaults
   25. 2.25. async_closure
   26. 2.26. async_fn_track_caller
   27. 2.27. async_for_loop
   28. 2.28. auto_traits
   29. 2.29. avx512_target_feature
   30. 2.30. box_patterns
   31. 2.31. bpf_target_feature
   32. 2.32. builtin_syntax
   33. 2.33. c_variadic
   34. 2.34. cfg_boolean_literals
   35. 2.35. cfg_overflow_checks
   36. 2.36. cfg_relocation_model
   37. 2.37. cfg_sanitize
   38. 2.38. cfg_sanitizer_cfi
   39. 2.39. cfg_target_compact
   40. 2.40. cfg_target_has_atomic
   41. 2.41. cfg_target_has_atomic_equal_alignment
   42. 2.42. cfg_target_thread_local
   43. 2.43. cfg_ub_checks
   44. 2.44. cfg_version
   45. 2.45. cfi_encoding
   46. 2.46. closure_lifetime_binder
   47. 2.47. closure_track_caller
   48. 2.48. cmse_nonsecure_entry
   49. 2.49. compiler_builtins
   50. 2.50. const_async_blocks
   51. 2.51. const_closures
   52. 2.52. const_for
   53. 2.53. const_precise_live_drops
   54. 2.54. const_trait_impl
   55. 2.55. const_try
   56. 2.56. coroutine_clone
   57. 2.57. coroutines
   58. 2.58. coverage_attribute
   59. 2.59. csky_target_feature
   60. 2.60. custom_inner_attributes
   61. 2.61. custom_mir
   62. 2.62. custom_test_frameworks
   63. 2.63. decl_macro
   64. 2.64. deprecated_safe
   65. 2.65. deprecated_suggestion
   66. 2.66. deref_patterns
   67. 2.67. do_not_recommend
   68. 2.68. doc_auto_cfg
   69. 2.69. doc_cfg
   70. 2.70. doc_cfg_hide
   71. 2.71. doc_masked
   72. 2.72. doc_notable_trait
   73. 2.73. dropck_eyepatch
   74. 2.74. dyn_compatible_for_dispatch
   75. 2.75. dyn_star
   76. 2.76. ermsb_target_feature
   77. 2.77. exhaustive_patterns
   78. 2.78. explicit_tail_calls
   79. 2.79. extended_varargs_abi_support
   80. 2.80. extern_types
   81. 2.81. f128
   82. 2.82. f16
   83. 2.83. ffi_const
   84. 2.84. ffi_pure
   85. 2.85. fmt_debug
   86. 2.86. fn_align
   87. 2.87. fn_delegation
   88. 2.88. freeze_impls
   89. 2.89. fundamental
   90. 2.90. gen_blocks
   91. 2.91. generic_arg_infer
   92. 2.92. generic_assert
   93. 2.93. generic_associated_types_extended
   94. 2.94. generic_const_exprs
   95. 2.95. generic_const_items
   96. 2.96. global_registration
   97. 2.97. half_open_range_patterns_in_slices
   98. 2.98. hexagon_target_feature
   99. 2.99. if_let_guard
   100. 2.100. impl_trait_in_assoc_type
   101. 2.101. impl_trait_in_fn_trait_return
   102. 2.102. inherent_associated_types
   103. 2.103. inline_const_pat
   104. 2.104. intra_doc_pointers
   105. 2.105. intrinsics
   106. 2.106. lahfsahf_target_feature
   107. 2.107. lang_items
   108. 2.108. large_assignments
   109. 2.109. lazy_type_alias
   110. 2.110. let_chains
   111. 2.111. lifetime_capture_rules_2024
   112. 2.112. link_arg_attribute
   113. 2.113. link_cfg
   114. 2.114. link_llvm_intrinsics
   115. 2.115. linkage
   116. 2.116. loongarch_target_feature
   117. 2.117. macro_metavar_expr
   118. 2.118. macro_metavar_expr_concat
   119. 2.119. marker_trait_attr
   120. 2.120. min_generic_const_args
   121. 2.121. min_specialization
   122. 2.122. mips_target_feature
   123. 2.123. more_maybe_bounds
   124. 2.124. more_qualified_paths
   125. 2.125. multiple_supertrait_upcastable
   126. 2.126. must_not_suspend
   127. 2.127. mut_ref
   128. 2.128. naked_functions
   129. 2.129. native_link_modifiers_as_needed
   130. 2.130. needs_panic_runtime
   131. 2.131. negative_bounds
   132. 2.132. negative_impls
   133. 2.133. never_patterns
   134. 2.134. never_type
   135. 2.135. never_type_fallback
   136. 2.136. no_core
   137. 2.137. no_sanitize
   138. 2.138. non_exhaustive_omitted_patterns_lint
   139. 2.139. non_lifetime_binders
   140. 2.140. offset_of_enum
   141. 2.141. offset_of_slice
   142. 2.142. omit_gdb_pretty_printer_section
   143. 2.143. optimize_attribute
   144. 2.144. panic_runtime
   145. 2.145. patchable_function_entry
   146. 2.146. pattern_complexity
   147. 2.147. pattern_types
   148. 2.148. pin_ergonomics
   149. 2.149. postfix_match
   150. 2.150. powerpc_target_feature
   151. 2.151. precise_capturing_in_traits
   152. 2.152. prelude_import
   153. 2.153. prfchw_target_feature
   154. 2.154. proc_macro_hygiene
   155. 2.155. profiler_runtime
   156. 2.156. ref_pat_eat_one_layer_2024
   157. 2.157. ref_pat_eat_one_layer_2024_structural
   158. 2.158. register_tool
   159. 2.159. repr_simd
   160. 2.160. repr128
   161. 2.161. return_type_notation
   162. 2.162. riscv_target_feature
   163. 2.163. rtm_target_feature
   164. 2.164. rust_cold_cc
   165. 2.165. rustc_allow_const_fn_unstable
   166. 2.166. rustc_attrs
   167. 2.167. rustc_private
   168. 2.168. rustdoc_internals
   169. 2.169. rustdoc_missing_doc_code_examples
   170. 2.170. s390x_target_feature
   171. 2.171. sha512_sm_x86
   172. 2.172. simd_ffi
   173. 2.173. sparc_target_feature
   174. 2.174. specialization
   175. 2.175. sse4a_target_feature
   176. 2.176. staged_api
   177. 2.177. start
   178. 2.178. stmt_expr_attributes
   179. 2.179. strict_provenance_lints
   180. 2.180. string_deref_patterns
   181. 2.181. structural_match
   182. 2.182. target_feature_11
   183. 2.183. tbm_target_feature
   184. 2.184. test_unstable_lint
   185. 2.185. thread_local
   186. 2.186. trait_alias
   187. 2.187. trait_upcasting
   188. 2.188. transmute_generic_consts
   189. 2.189. transparent_unions
   190. 2.190. trivial_bounds
   191. 2.191. try_blocks
   192. 2.192. type_alias_impl_trait
   193. 2.193. type_changing_struct_update
   194. 2.194. unboxed_closures
   195. 2.195. unqualified_local_imports
   196. 2.196. unsized_const_params
   197. 2.197. unsized_fn_params
   198. 2.198. unsized_locals
   199. 2.199. unsized_tuple_coercion
   200. 2.200. used_with_arg
   201. 2.201. wasm_target_feature
   202. 2.202. with_negative_coherence
   203. 2.203. x86_amx_intrinsics
   204. 2.204. xop_target_feature
   205. 2.205. yeet_expr
6. 3. Library Features
7. 1. 3.1. abort_unwind
   2. 3.2. acceptfilter
   3. 3.3. addr_parse_ascii
   4. 3.4. alloc_error_hook
   5. 3.5. alloc_internals
   6. 3.6. alloc_layout_extra
   7. 3.7. allocator_api
   8. 3.8. anonymous_pipe
   9. 3.9. array_chunks
   10. 3.10. array_into_iter_constructors
   11. 3.11. array_ptr_get
   12. 3.12. array_repeat
   13. 3.13. array_try_from_fn
   14. 3.14. array_try_map
   15. 3.15. array_windows
   16. 3.16. as_array_of_cells
   17. 3.17. ascii_char
   18. 3.18. ascii_char_variants
   19. 3.19. assert_matches
   20. 3.20. async_drop
   21. 3.21. async_fn_traits
   22. 3.22. async_gen_internals
   23. 3.23. async_iter_from_iter
   24. 3.24. async_iterator
   25. 3.25. atomic_from_mut
   26. 3.26. autodiff
   27. 3.27. backtrace_frames
   28. 3.28. bigint_helper_methods
   29. 3.29. binary_heap_drain_sorted
   30. 3.30. binary_heap_into_iter_sorted
   31. 3.31. bound_as_ref
   32. 3.32. box_as_ptr
   33. 3.33. box_into_boxed_slice
   34. 3.34. box_into_inner
   35. 3.35. box_uninit_write
   36. 3.36. box_vec_non_null
   37. 3.37. btree_cursors
   38. 3.38. btree_extract_if
   39. 3.39. btreemap_alloc
   40. 3.40. buf_read_has_data_left
   41. 3.41. bufreader_peek
   42. 3.42. build_hasher_default_const_new
   43. 3.43. c_size_t
   44. 3.44. c_str_module
   45. 3.45. c_void_variant
   46. 3.46. can_vector
   47. 3.47. cell_leak
   48. 3.48. cell_update
   49. 3.49. cfg_accessible
   50. 3.50. cfg_eval
   51. 3.51. cfg_match
   52. 3.52. char_internals
   53. 3.53. clone_to_uninit
   54. 3.54. cmp_minmax
   55. 3.55. coerce_unsized
   56. 3.56. concat_bytes
   57. 3.57. concat_idents
   58. 3.58. const_align_of_val
   59. 3.59. const_align_of_val_raw
   60. 3.60. const_alloc_error
   61. 3.61. const_alloc_layout
   62. 3.62. const_binary_heap_new_in
   63. 3.63. const_black_box
   64. 3.64. const_box
   65. 3.65. const_btree_len
   66. 3.66. const_cell
   67. 3.67. const_char_classify
   68. 3.68. const_collections_with_hasher
   69. 3.69. const_eq_ignore_ascii_case
   70. 3.70. const_eval_select
   71. 3.71. const_exact_div
   72. 3.72. const_float_methods
   73. 3.73. const_fmt_arguments_new
   74. 3.74. const_format_args
   75. 3.75. const_heap
   76. 3.76. const_intrinsic_compare_bytes
   77. 3.77. const_intrinsic_raw_eq
   78. 3.78. const_is_char_boundary
   79. 3.79. const_maybe_uninit_write
   80. 3.80. const_mut_cursor
   81. 3.81. const_nonnull_new
   82. 3.82. const_pref_align_of
   83. 3.83. const_ptr_sub_ptr
   84. 3.84. const_range_bounds
   85. 3.85. const_raw_ptr_comparison
   86. 3.86. const_size_of_val
   87. 3.87. const_size_of_val_raw
   88. 3.88. const_slice_flatten
   89. 3.89. const_slice_from_mut_ptr_range
   90. 3.90. const_slice_from_ptr_range
   91. 3.91. const_sockaddr_setters
   92. 3.92. const_str_from_utf8
   93. 3.93. const_str_split_at
   94. 3.94. const_swap
   95. 3.95. const_three_way_compare
   96. 3.96. const_type_id
   97. 3.97. const_type_name
   98. 3.98. const_typed_swap
   99. 3.99. const_ub_checks
   100. 3.100. const_vec_string_slice
   101. 3.101. container_error_extra
   102. 3.102. context_ext
   103. 3.103. convert_float_to_int
   104. 3.104. core_intrinsics
   105. 3.105. core_io_borrowed_buf
   106. 3.106. core_pattern_type
   107. 3.107. core_pattern_types
   108. 3.108. core_private_bignum
   109. 3.109. core_private_diy_float
   110. 3.110. coroutine_trait
   111. 3.111. cow_is_borrowed
   112. 3.112. cstr_bytes
   113. 3.113. cstr_internals
   114. 3.114. cursor_split
   115. 3.115. deadline_api
   116. 3.116. debug_closure_helpers
   117. 3.117. dec2flt
   118. 3.118. deref_pure_trait
   119. 3.119. derive_clone_copy
   120. 3.120. derive_coerce_pointee
   121. 3.121. derive_const
   122. 3.122. derive_eq
   123. 3.123. dir_entry_ext2
   124. 3.124. discriminant_kind
   125. 3.125. dispatch_from_dyn
   126. 3.126. downcast_unchecked
   127. 3.127. drain_keep_rest
   128. 3.128. duration_constants
   129. 3.129. duration_constructors
   130. 3.130. duration_millis_float
   131. 3.131. duration_units
   132. 3.132. edition_panic
   133. 3.133. error_generic_member_access
   134. 3.134. error_iter
   135. 3.135. error_reporter
   136. 3.136. error_type_id
   137. 3.137. exact_size_is_empty
   138. 3.138. exclusive_wrapper
   139. 3.139. exit_status_error
   140. 3.140. exitcode_exit_method
   141. 3.141. extend_one
   142. 3.142. extend_one_unchecked
   143. 3.143. extract_if
   144. 3.144. fd
   145. 3.145. fd_read
   146. 3.146. file_buffered
   147. 3.147. file_lock
   148. 3.148. float_gamma
   149. 3.149. float_minimum_maximum
   150. 3.150. float_next_up_down
   151. 3.151. flt2dec
   152. 3.152. fmt_helpers_for_derive
   153. 3.153. fmt_internals
   154. 3.154. fn_ptr_trait
   155. 3.155. fn_traits
   156. 3.156. forget_unsized
   157. 3.157. format_args_nl
   158. 3.158. freeze
   159. 3.159. future_join
   160. 3.160. gen_future
   161. 3.161. generic_assert_internals
   162. 3.162. get_many_mut
   163. 3.163. get_mut_unchecked
   164. 3.164. hash_extract_if
   165. 3.165. hash_raw_entry
   166. 3.166. hash_set_entry
   167. 3.167. hasher_prefixfree_extras
   168. 3.168. hashmap_internals
   169. 3.169. hint_must_use
   170. 3.170. inplace_iteration
   171. 3.171. int_roundings
   172. 3.172. integer_atomics
   173. 3.173. integer_sign_cast
   174. 3.174. internal_impls_macro
   175. 3.175. internal_output_capture
   176. 3.176. io_error_inprogress
   177. 3.177. io_error_more
   178. 3.178. io_error_uncategorized
   179. 3.179. io_slice_as_bytes
   180. 3.180. ip
   181. 3.181. ip_from
   182. 3.182. is_ascii_octdigit
   183. 3.183. is_riscv_feature_detected
   184. 3.184. iter_advance_by
   185. 3.185. iter_array_chunks
   186. 3.186. iter_chain
   187. 3.187. iter_collect_into
   188. 3.188. iter_from_coroutine
   189. 3.189. iter_intersperse
   190. 3.190. iter_is_partitioned
   191. 3.191. iter_map_windows
   192. 3.192. iter_next_chunk
   193. 3.193. iter_order_by
   194. 3.194. iter_partition_in_place
   195. 3.195. iterator_try_collect
   196. 3.196. iterator_try_reduce
   197. 3.197. junction_point
   198. 3.198. layout_for_ptr
   199. 3.199. lazy_cell_into_inner
   200. 3.200. lazy_get
   201. 3.201. legacy_receiver_trait
   202. 3.202. liballoc_internals
   203. 3.203. libstd_sys_internals
   204. 3.204. linked_list_cursors
   205. 3.205. linked_list_remove
   206. 3.206. linked_list_retain
   207. 3.207. linux_pidfd
   208. 3.208. local_waker
   209. 3.209. log_syntax
   210. 3.210. map_many_mut
   211. 3.211. map_try_insert
   212. 3.212. mapped_lock_guards
   213. 3.213. maybe_uninit_array_assume_init
   214. 3.214. maybe_uninit_as_bytes
   215. 3.215. maybe_uninit_fill
   216. 3.216. maybe_uninit_slice
   217. 3.217. maybe_uninit_uninit_array
   218. 3.218. maybe_uninit_uninit_array_transpose
   219. 3.219. maybe_uninit_write_slice
   220. 3.220. mem_copy_fn
   221. 3.221. mixed_integer_ops_unsigned_sub
   222. 3.222. more_float_constants
   223. 3.223. mpmc_channel
   224. 3.224. new_range_api
   225. 3.225. new_zeroed_alloc
   226. 3.226. non_null_from_ref
   227. 3.227. non_zero_count_ones
   228. 3.228. nonzero_bitwise
   229. 3.229. nonzero_from_mut
   230. 3.230. nonzero_internals
   231. 3.231. nonzero_ops
   232. 3.232. noop_waker
   233. 3.233. num_midpoint
   234. 3.234. numfmt
   235. 3.235. once_cell_get_mut
   236. 3.236. once_cell_try
   237. 3.237. once_cell_try_insert
   238. 3.238. once_wait
   239. 3.239. one_sided_range
   240. 3.240. option_array_transpose
   241. 3.241. option_zip
   242. 3.242. os_str_display
   243. 3.243. os_str_slice
   244. 3.244. os_string_pathbuf_leak
   245. 3.245. panic_abort
   246. 3.246. panic_always_abort
   247. 3.247. panic_backtrace_config
   248. 3.248. panic_can_unwind
   249. 3.249. panic_internals
   250. 3.250. panic_payload_as_str
   251. 3.251. panic_unwind
   252. 3.252. panic_update_hook
   253. 3.253. path_add_extension
   254. 3.254. path_file_prefix
   255. 3.255. pattern
   256. 3.256. peer_credentials_unix_socket
   257. 3.257. pin_coerce_unsized_trait
   258. 3.258. pointer_is_aligned_to
   259. 3.259. pointer_like_trait
   260. 3.260. portable_simd
   261. 3.261. prelude_2024
   262. 3.262. print_internals
   263. 3.263. proc_macro_def_site
   264. 3.264. proc_macro_diagnostic
   265. 3.265. proc_macro_expand
   266. 3.266. proc_macro_internals
   267. 3.267. proc_macro_quote
   268. 3.268. proc_macro_span
   269. 3.269. proc_macro_totokens
   270. 3.270. proc_macro_tracked_env
   271. 3.271. process_exitcode_internals
   272. 3.272. process_internals
   273. 3.273. profiler_runtime_lib
   274. 3.274. ptr_alignment_type
   275. 3.275. ptr_as_ref_unchecked
   276. 3.276. ptr_as_uninit
   277. 3.277. ptr_fn_addr_eq
   278. 3.278. ptr_internals
   279. 3.279. ptr_mask
   280. 3.280. ptr_metadata
   281. 3.281. ptr_sub_ptr
   282. 3.282. pub_crate_should_not_need_unstable_attr
   283. 3.283. random
   284. 3.284. raw_os_error_ty
   285. 3.285. raw_slice_split
   286. 3.286. raw_vec_internals
   287. 3.287. read_buf
   288. 3.288. reentrant_lock
   289. 3.289. restricted_std
   290. 3.290. result_flattening
   291. 3.291. round_char_boundary
   292. 3.292. rt
   293. 3.293. rustc_encodable_decodable
   294. 3.294. rwlock_downgrade
   295. 3.295. sealed
   296. 3.296. seek_stream_len
   297. 3.297. set_ptr_value
   298. 3.298. setgroups
   299. 3.299. sgx_platform
   300. 3.300. sized_type_properties
   301. 3.301. slice_as_chunks
   302. 3.302. slice_concat_ext
   303. 3.303. slice_concat_trait
   304. 3.304. slice_from_ptr_range
   305. 3.305. slice_index_methods
   306. 3.306. slice_internals
   307. 3.307. slice_iter_mut_as_mut_slice
   308. 3.308. slice_partition_dedup
   309. 3.309. slice_pattern
   310. 3.310. slice_ptr_get
   311. 3.311. slice_range
   312. 3.312. slice_split_once
   313. 3.313. slice_swap_unchecked
   314. 3.314. slice_take
   315. 3.315. solid_ext
   316. 3.316. sort_floats
   317. 3.317. split_array
   318. 3.318. split_as_slice
   319. 3.319. std_internals
   320. 3.320. stdarch_arm_feature_detection
   321. 3.321. stdarch_mips_feature_detection
   322. 3.322. stdarch_powerpc_feature_detection
   323. 3.323. stdio_makes_pipe
   324. 3.324. step_trait
   325. 3.325. str_as_str
   326. 3.326. str_from_raw_parts
   327. 3.327. str_from_utf16_endian
   328. 3.328. str_internals
   329. 3.329. str_lines_remainder
   330. 3.330. str_split_inclusive_remainder
   331. 3.331. str_split_remainder
   332. 3.332. str_split_whitespace_remainder
   333. 3.333. strict_overflow_ops
   334. 3.334. strict_provenance_atomic_ptr
   335. 3.335. string_extend_from_within
   336. 3.336. string_from_utf8_lossy_owned
   337. 3.337. string_remove_matches
   338. 3.338. substr_range
   339. 3.339. sync_unsafe_cell
   340. 3.340. tcp_deferaccept
   341. 3.341. tcp_linger
   342. 3.342. tcp_quickack
   343. 3.343. tcplistener_into_incoming
   344. 3.344. test
   345. 3.345. thin_box
   346. 3.346. thread_id_value
   347. 3.347. thread_local_internals
   348. 3.348. thread_raw
   349. 3.349. thread_sleep_until
   350. 3.350. thread_spawn_hook
   351. 3.351. trace_macros
   352. 3.352. track_path
   353. 3.353. transmutability
   354. 3.354. trusted_fused
   355. 3.355. trusted_len
   356. 3.356. trusted_len_next_unchecked
   357. 3.357. trusted_random_access
   358. 3.358. trusted_step
   359. 3.359. try_find
   360. 3.360. try_reserve_kind
   361. 3.361. try_trait_v2
   362. 3.362. try_trait_v2_residual
   363. 3.363. try_trait_v2_yeet
   364. 3.364. try_with_capacity
   365. 3.365. tuple_trait
   366. 3.366. type_ascription
   367. 3.367. ub_checks
   368. 3.368. uefi_std
   369. 3.369. unbounded_shifts
   370. 3.370. unchecked_neg
   371. 3.371. unchecked_shifts
   372. 3.372. unicode_internals
   373. 3.373. unique_rc_arc
   374. 3.374. unix_file_vectored_at
   375. 3.375. unix_set_mark
   376. 3.376. unix_socket_ancillary_data
   377. 3.377. unix_socket_peek
   378. 3.378. unsafe_pin_internals
   379. 3.379. unsigned_is_multiple_of
   380. 3.380. unsigned_nonzero_div_ceil
   381. 3.381. unsigned_signed_diff
   382. 3.382. unsize
   383. 3.383. unwrap_infallible
   384. 3.384. update_panic_count
   385. 3.385. utf16_extra
   386. 3.386. variant_count
   387. 3.387. vec_deque_iter_as_slices
   388. 3.388. vec_into_raw_parts
   389. 3.389. vec_pop_if
   390. 3.390. vec_push_within_capacity
   391. 3.391. vec_split_at_spare
   392. 3.392. wasi_ext
   393. 3.393. windows_by_handle
   394. 3.394. windows_c
   395. 3.395. windows_change_time
   396. 3.396. windows_handle
   397. 3.397. windows_net
   398. 3.398. windows_process_exit_code_from
   399. 3.399. windows_process_extensions_async_pipes
   400. 3.400. windows_process_extensions_force_quotes
   401. 3.401. windows_process_extensions_main_thread_handle
   402. 3.402. windows_process_extensions_raw_attribute
   403. 3.403. windows_process_extensions_show_window
   404. 3.404. windows_stdio
   405. 3.405. wrapping_int_impl
   406. 3.406. wrapping_next_power_of_two
   407. 3.407. write_all_vectored
   408. 3.408. yeet_desugar_details