1. The Unstable Book
2. 1. Compiler flags
3. 1. 1.1. allow_features
   2. 1.2. autodiff
   3. 1.3. branch_protection
   4. 1.4. cf_protection
   5. 1.5. codegen_backend
   6. 1.6. codegen_options
   7. 1.7. control_flow_guard
   8. 1.8. coverage_options
   9. 1.9. crate_attr
   10. 1.10. debug_info_for_profiling
   11. 1.11. debug_info_type_line_numbers
   12. 1.12. default_visibility
   13. 1.13. direct_access_external_data
   14. 1.14. dump_mono_stats
   15. 1.15. dump_mono_stats_format
   16. 1.16. dylib_lto
   17. 1.17. eagerly_emit_delayed_bugs
   18. 1.18. embed_metadata
   19. 1.19. embed_source
   20. 1.20. emit_stack_sizes
   21. 1.21. emscripten_wasm_eh
   22. 1.22. env_set
   23. 1.23. export_executable_symbols
   24. 1.24. extern_options
   25. 1.25. external_clangrt
   26. 1.26. fixed_x18
   27. 1.27. fmt_debug
   28. 1.28. function_return
   29. 1.29. instrument_xray
   30. 1.30. link_native_libraries
   31. 1.31. linker_features
   32. 1.32. lint_llvm_ir
   33. 1.33. llvm_module_flag
   34. 1.34. location_detail
   35. 1.35. min_function_alignment
   36. 1.36. move_size_limit
   37. 1.37. no_jump_tables
   38. 1.38. no_parallel_llvm
   39. 1.39. no_unique_section_names
   40. 1.40. on_broken_pipe
   41. 1.41. patchable_function_entry
   42. 1.42. print_check_cfg
   43. 1.43. print_crate_root_lint_levels
   44. 1.44. print_supported_crate_types
   45. 1.45. profile_sample_use
   46. 1.46. randomize_layout
   47. 1.47. reg_struct_return
   48. 1.48. regparm
   49. 1.49. remap_cwd_prefix
   50. 1.50. remap_path_scope
   51. 1.51. report_time
   52. 1.52. rustc_bootstrap
   53. 1.53. rustc_override_version_string
   54. 1.54. sanitizer
   55. 1.55. self_profile
   56. 1.56. self_profile_events
   57. 1.57. shell_argfiles
   58. 1.58. small_data_threshold
   59. 1.59. src_hash_algorithm
   60. 1.60. temps_dir
   61. 1.61. tiny_const_eval_limit
   62. 1.62. tls_model
   63. 1.63. track_diagnostics
   64. 1.64. treat_err_as_bug
   65. 1.65. ub_checks
   66. 1.66. unsound_mir_opts
   67. 1.67. verbose_asm
   68. 1.68. virtual_function_elimination
   69. 1.69. 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_gpu_kernel
   6. 2.6. abi_msp430_interrupt
   7. 2.7. abi_ptx
   8. 2.8. abi_riscv_interrupt
   9. 2.9. abi_unadjusted
   10. 2.10. abi_vectorcall
   11. 2.11. abi_x86_interrupt
   12. 2.12. adt_const_params
   13. 2.13. alloc_error_handler
   14. 2.14. allocator_internals
   15. 2.15. allow_internal_unsafe
   16. 2.16. allow_internal_unstable
   17. 2.17. anonymous_lifetime_in_impl_trait
   18. 2.18. apx_target_feature
   19. 2.19. arbitrary_self_types
   20. 2.20. arbitrary_self_types_pointers
   21. 2.21. arm_target_feature
   22. 2.22. asm_experimental_arch
   23. 2.23. asm_experimental_reg
   24. 2.24. asm_goto_with_outputs
   25. 2.25. asm_unwind
   26. 2.26. associated_const_equality
   27. 2.27. associated_type_defaults
   28. 2.28. async_drop
   29. 2.29. async_fn_in_dyn_trait
   30. 2.30. async_fn_track_caller
   31. 2.31. async_for_loop
   32. 2.32. async_trait_bounds
   33. 2.33. auto_traits
   34. 2.34. avx10_target_feature
   35. 2.35. box_patterns
   36. 2.36. bpf_target_feature
   37. 2.37. builtin_syntax
   38. 2.38. c_variadic
   39. 2.39. cfg_contract_checks
   40. 2.40. cfg_emscripten_wasm_eh
   41. 2.41. cfg_overflow_checks
   42. 2.42. cfg_relocation_model
   43. 2.43. cfg_sanitize
   44. 2.44. cfg_sanitizer_cfi
   45. 2.45. cfg_target_compact
   46. 2.46. cfg_target_has_atomic
   47. 2.47. cfg_target_has_atomic_equal_alignment
   48. 2.48. cfg_target_has_reliable_f16_f128
   49. 2.49. cfg_target_thread_local
   50. 2.50. cfg_ub_checks
   51. 2.51. cfg_version
   52. 2.52. cfi_encoding
   53. 2.53. closure_lifetime_binder
   54. 2.54. closure_track_caller
   55. 2.55. cmse_nonsecure_entry
   56. 2.56. compiler_builtins
   57. 2.57. const_async_blocks
   58. 2.58. const_closures
   59. 2.59. const_destruct
   60. 2.60. const_for
   61. 2.61. const_precise_live_drops
   62. 2.62. const_trait_impl
   63. 2.63. const_try
   64. 2.64. contracts
   65. 2.65. contracts_internals
   66. 2.66. coroutine_clone
   67. 2.67. coroutines
   68. 2.68. coverage_attribute
   69. 2.69. csky_target_feature
   70. 2.70. custom_inner_attributes
   71. 2.71. custom_mir
   72. 2.72. custom_test_frameworks
   73. 2.73. decl_macro
   74. 2.74. default_field_values
   75. 2.75. deprecated_safe
   76. 2.76. deprecated_suggestion
   77. 2.77. deref_patterns
   78. 2.78. doc_auto_cfg
   79. 2.79. doc_cfg
   80. 2.80. doc_cfg_hide
   81. 2.81. doc_masked
   82. 2.82. doc_notable_trait
   83. 2.83. dropck_eyepatch
   84. 2.84. dyn_star
   85. 2.85. ergonomic_clones
   86. 2.86. ermsb_target_feature
   87. 2.87. exhaustive_patterns
   88. 2.88. explicit_extern_abis
   89. 2.89. explicit_tail_calls
   90. 2.90. export_stable
   91. 2.91. extended_varargs_abi_support
   92. 2.92. extern_system_varargs
   93. 2.93. extern_types
   94. 2.94. f128
   95. 2.95. f16
   96. 2.96. ffi_const
   97. 2.97. ffi_pure
   98. 2.98. fmt_debug
   99. 2.99. fn_align
   100. 2.100. fn_delegation
   101. 2.101. freeze_impls
   102. 2.102. frontmatter
   103. 2.103. fundamental
   104. 2.104. gen_blocks
   105. 2.105. generic_arg_infer
   106. 2.106. generic_assert
   107. 2.107. generic_const_exprs
   108. 2.108. generic_const_items
   109. 2.109. generic_const_parameter_types
   110. 2.110. generic_pattern_types
   111. 2.111. global_registration
   112. 2.112. guard_patterns
   113. 2.113. half_open_range_patterns_in_slices
   114. 2.114. hexagon_target_feature
   115. 2.115. if_let_guard
   116. 2.116. impl_trait_in_assoc_type
   117. 2.117. impl_trait_in_bindings
   118. 2.118. impl_trait_in_fn_trait_return
   119. 2.119. import_trait_associated_functions
   120. 2.120. inherent_associated_types
   121. 2.121. intra_doc_pointers
   122. 2.122. intrinsics
   123. 2.123. keylocker_x86
   124. 2.124. lahfsahf_target_feature
   125. 2.125. lang_items
   126. 2.126. large_assignments
   127. 2.127. lazy_type_alias
   128. 2.128. let_chains
   129. 2.129. link_arg_attribute
   130. 2.130. link_cfg
   131. 2.131. link_llvm_intrinsics
   132. 2.132. linkage
   133. 2.133. loongarch_target_feature
   134. 2.134. m68k_target_feature
   135. 2.135. macro_metavar_expr
   136. 2.136. macro_metavar_expr_concat
   137. 2.137. marker_trait_attr
   138. 2.138. min_generic_const_args
   139. 2.139. min_specialization
   140. 2.140. mips_target_feature
   141. 2.141. more_maybe_bounds
   142. 2.142. more_qualified_paths
   143. 2.143. movrs_target_feature
   144. 2.144. multiple_supertrait_upcastable
   145. 2.145. must_not_suspend
   146. 2.146. mut_ref
   147. 2.147. naked_functions_rustic_abi
   148. 2.148. naked_functions_target_feature
   149. 2.149. native_link_modifiers_as_needed
   150. 2.150. needs_panic_runtime
   151. 2.151. negative_bounds
   152. 2.152. negative_impls
   153. 2.153. never_patterns
   154. 2.154. never_type
   155. 2.155. never_type_fallback
   156. 2.156. new_range
   157. 2.157. no_core
   158. 2.158. no_sanitize
   159. 2.159. non_exhaustive_omitted_patterns_lint
   160. 2.160. non_lifetime_binders
   161. 2.161. offset_of_enum
   162. 2.162. offset_of_slice
   163. 2.163. omit_gdb_pretty_printer_section
   164. 2.164. optimize_attribute
   165. 2.165. panic_runtime
   166. 2.166. patchable_function_entry
   167. 2.167. pattern_complexity_limit
   168. 2.168. pattern_types
   169. 2.169. pin_ergonomics
   170. 2.170. postfix_match
   171. 2.171. powerpc_target_feature
   172. 2.172. prelude_import
   173. 2.173. prfchw_target_feature
   174. 2.174. proc_macro_hygiene
   175. 2.175. profiler_runtime
   176. 2.176. raw_dylib_elf
   177. 2.177. ref_pat_eat_one_layer_2024
   178. 2.178. ref_pat_eat_one_layer_2024_structural
   179. 2.179. register_tool
   180. 2.180. repr_simd
   181. 2.181. repr128
   182. 2.182. return_type_notation
   183. 2.183. riscv_target_feature
   184. 2.184. rtm_target_feature
   185. 2.185. rust_cold_cc
   186. 2.186. rustc_allow_const_fn_unstable
   187. 2.187. rustc_attrs
   188. 2.188. rustc_private
   189. 2.189. rustdoc_internals
   190. 2.190. rustdoc_missing_doc_code_examples
   191. 2.191. s390x_target_feature
   192. 2.192. sha512_sm_x86
   193. 2.193. simd_ffi
   194. 2.194. sparc_target_feature
   195. 2.195. specialization
   196. 2.196. sse4a_target_feature
   197. 2.197. staged_api
   198. 2.198. stmt_expr_attributes
   199. 2.199. strict_provenance_lints
   200. 2.200. string_deref_patterns
   201. 2.201. structural_match
   202. 2.202. super_let
   203. 2.203. supertrait_item_shadowing
   204. 2.204. tbm_target_feature
   205. 2.205. test_unstable_lint
   206. 2.206. thread_local
   207. 2.207. trait_alias
   208. 2.208. transmute_generic_consts
   209. 2.209. transparent_unions
   210. 2.210. trivial_bounds
   211. 2.211. try_blocks
   212. 2.212. type_alias_impl_trait
   213. 2.213. type_changing_struct_update
   214. 2.214. unboxed_closures
   215. 2.215. unqualified_local_imports
   216. 2.216. unsafe_binders
   217. 2.217. unsafe_fields
   218. 2.218. unsized_const_params
   219. 2.219. unsized_fn_params
   220. 2.220. unsized_locals
   221. 2.221. used_with_arg
   222. 2.222. wasm_target_feature
   223. 2.223. where_clause_attrs
   224. 2.224. with_negative_coherence
   225. 2.225. x86_amx_intrinsics
   226. 2.226. x87_target_feature
   227. 2.227. xop_target_feature
   228. 2.228. yeet_expr
   229. 2.229. yield_expr
6. 3. Library Features
7. 1. 3.1. abort_unwind
   2. 3.2. acceptfilter
   3. 3.3. addr_parse_ascii
   4. 3.4. align_to_uninit_mut
   5. 3.5. alloc_error_hook
   6. 3.6. alloc_internals
   7. 3.7. alloc_layout_extra
   8. 3.8. allocator_api
   9. 3.9. alloctests
   10. 3.10. arc_is_unique
   11. 3.11. array_chunks
   12. 3.12. array_into_iter_constructors
   13. 3.13. array_ptr_get
   14. 3.14. array_repeat
   15. 3.15. array_try_from_fn
   16. 3.16. array_try_map
   17. 3.17. array_windows
   18. 3.18. as_array_of_cells
   19. 3.19. ascii_char
   20. 3.20. ascii_char_variants
   21. 3.21. assert_matches
   22. 3.22. async_fn_traits
   23. 3.23. async_gen_internals
   24. 3.24. async_iter_from_iter
   25. 3.25. async_iterator
   26. 3.26. atomic_from_mut
   27. 3.27. atomic_internals
   28. 3.28. atomic_try_update
   29. 3.29. autodiff
   30. 3.30. backtrace_frames
   31. 3.31. bigint_helper_methods
   32. 3.32. bikeshed_guaranteed_no_drop
   33. 3.33. binary_heap_drain_sorted
   34. 3.34. binary_heap_into_iter_sorted
   35. 3.35. binary_heap_peek_mut_refresh
   36. 3.36. bound_as_ref
   37. 3.37. box_as_ptr
   38. 3.38. box_into_boxed_slice
   39. 3.39. box_into_inner
   40. 3.40. box_vec_non_null
   41. 3.41. breakpoint
   42. 3.42. bstr
   43. 3.43. bstr_internals
   44. 3.44. btree_cursors
   45. 3.45. btree_entry_insert
   46. 3.46. btree_extract_if
   47. 3.47. btree_set_entry
   48. 3.48. btreemap_alloc
   49. 3.49. buf_read_has_data_left
   50. 3.50. bufreader_peek
   51. 3.51. c_size_t
   52. 3.52. c_void_variant
   53. 3.53. can_vector
   54. 3.54. cell_leak
   55. 3.55. cfg_accessible
   56. 3.56. cfg_eval
   57. 3.57. cfg_select
   58. 3.58. char_internals
   59. 3.59. char_max_len
   60. 3.60. clone_to_uninit
   61. 3.61. cmp_minmax
   62. 3.62. coerce_pointee_validated
   63. 3.63. coerce_unsized
   64. 3.64. cold_path
   65. 3.65. concat_bytes
   66. 3.66. concat_idents
   67. 3.67. const_alloc_error
   68. 3.68. const_array_each_ref
   69. 3.69. const_btree_len
   70. 3.70. const_carrying_mul_add
   71. 3.71. const_deref
   72. 3.72. const_eq_ignore_ascii_case
   73. 3.73. const_eval_select
   74. 3.74. const_format_args
   75. 3.75. const_heap
   76. 3.76. const_ops
   77. 3.77. const_range_bounds
   78. 3.78. const_raw_ptr_comparison
   79. 3.79. const_slice_from_mut_ptr_range
   80. 3.80. const_slice_from_ptr_range
   81. 3.81. const_slice_make_iter
   82. 3.82. const_slice_reverse
   83. 3.83. const_split_off_first_last
   84. 3.84. const_type_id
   85. 3.85. const_type_name
   86. 3.86. container_error_extra
   87. 3.87. context_ext
   88. 3.88. control_flow_into_value
   89. 3.89. convert_float_to_int
   90. 3.90. core_float_math
   91. 3.91. core_intrinsics
   92. 3.92. core_intrinsics_fallbacks
   93. 3.93. core_io_borrowed_buf
   94. 3.94. core_private_bignum
   95. 3.95. core_private_diy_float
   96. 3.96. coroutine_trait
   97. 3.97. cow_is_borrowed
   98. 3.98. cstr_bytes
   99. 3.99. cstr_internals
   100. 3.100. cursor_split
   101. 3.101. deadline_api
   102. 3.102. debug_closure_helpers
   103. 3.103. dec2flt
   104. 3.104. deref_pure_trait
   105. 3.105. derive_clone_copy
   106. 3.106. derive_coerce_pointee
   107. 3.107. derive_const
   108. 3.108. derive_eq
   109. 3.109. dir_entry_ext2
   110. 3.110. discriminant_kind
   111. 3.111. disjoint_bitor
   112. 3.112. dispatch_from_dyn
   113. 3.113. downcast_unchecked
   114. 3.114. drain_keep_rest
   115. 3.115. duration_constants
   116. 3.116. duration_constructors
   117. 3.117. duration_constructors_lite
   118. 3.118. duration_millis_float
   119. 3.119. duration_units
   120. 3.120. edition_panic
   121. 3.121. error_generic_member_access
   122. 3.122. error_iter
   123. 3.123. error_reporter
   124. 3.124. error_type_id
   125. 3.125. exact_size_is_empty
   126. 3.126. exclusive_wrapper
   127. 3.127. exit_status_error
   128. 3.128. exitcode_exit_method
   129. 3.129. extend_one
   130. 3.130. extend_one_unchecked
   131. 3.131. fd
   132. 3.132. fd_read
   133. 3.133. file_buffered
   134. 3.134. file_lock
   135. 3.135. float_algebraic
   136. 3.136. float_erf
   137. 3.137. float_gamma
   138. 3.138. float_minimum_maximum
   139. 3.139. flt2dec
   140. 3.140. fmt_helpers_for_derive
   141. 3.141. fmt_internals
   142. 3.142. fn_ptr_trait
   143. 3.143. fn_traits
   144. 3.144. forget_unsized
   145. 3.145. format_args_nl
   146. 3.146. formatting_options
   147. 3.147. freeze
   148. 3.148. future_join
   149. 3.149. gen_future
   150. 3.150. generic_assert_internals
   151. 3.151. generic_atomic
   152. 3.152. get_disjoint_mut_helpers
   153. 3.153. get_mut_unchecked
   154. 3.154. hash_set_entry
   155. 3.155. hasher_prefixfree_extras
   156. 3.156. hashmap_internals
   157. 3.157. hint_must_use
   158. 3.158. inplace_iteration
   159. 3.159. int_from_ascii
   160. 3.160. int_roundings
   161. 3.161. integer_atomics
   162. 3.162. internal_impls_macro
   163. 3.163. internal_output_capture
   164. 3.164. io_const_error
   165. 3.165. io_const_error_internals
   166. 3.166. io_error_inprogress
   167. 3.167. io_error_more
   168. 3.168. io_error_uncategorized
   169. 3.169. io_slice_as_bytes
   170. 3.170. ip
   171. 3.171. ip_as_octets
   172. 3.172. ip_from
   173. 3.173. is_ascii_octdigit
   174. 3.174. is_loongarch_feature_detected
   175. 3.175. is_riscv_feature_detected
   176. 3.176. isolate_most_least_significant_one
   177. 3.177. iter_advance_by
   178. 3.178. iter_array_chunks
   179. 3.179. iter_chain
   180. 3.180. iter_collect_into
   181. 3.181. iter_from_coroutine
   182. 3.182. iter_intersperse
   183. 3.183. iter_is_partitioned
   184. 3.184. iter_map_windows
   185. 3.185. iter_next_chunk
   186. 3.186. iter_order_by
   187. 3.187. iter_partition_in_place
   188. 3.188. iterator_try_collect
   189. 3.189. iterator_try_reduce
   190. 3.190. junction_point
   191. 3.191. layout_for_ptr
   192. 3.192. lazy_cell_into_inner
   193. 3.193. lazy_get
   194. 3.194. legacy_receiver_trait
   195. 3.195. liballoc_internals
   196. 3.196. libstd_sys_internals
   197. 3.197. likely_unlikely
   198. 3.198. linked_list_cursors
   199. 3.199. linked_list_remove
   200. 3.200. linked_list_retain
   201. 3.201. linux_pidfd
   202. 3.202. local_waker
   203. 3.203. lock_value_accessors
   204. 3.204. log_syntax
   205. 3.205. map_try_insert
   206. 3.206. mapped_lock_guards
   207. 3.207. maybe_uninit_array_assume_init
   208. 3.208. maybe_uninit_as_bytes
   209. 3.209. maybe_uninit_fill
   210. 3.210. maybe_uninit_slice
   211. 3.211. maybe_uninit_uninit_array_transpose
   212. 3.212. maybe_uninit_write_slice
   213. 3.213. mem_copy_fn
   214. 3.214. mixed_integer_ops_unsigned_sub
   215. 3.215. more_float_constants
   216. 3.216. mpmc_channel
   217. 3.217. new_range_api
   218. 3.218. new_zeroed_alloc
   219. 3.219. next_index
   220. 3.220. nonnull_provenance
   221. 3.221. nonzero_bitwise
   222. 3.222. nonzero_from_mut
   223. 3.223. nonzero_internals
   224. 3.224. nonzero_ops
   225. 3.225. numfmt
   226. 3.226. once_cell_get_mut
   227. 3.227. once_cell_try
   228. 3.228. once_cell_try_insert
   229. 3.229. one_sided_range
   230. 3.230. option_array_transpose
   231. 3.231. option_zip
   232. 3.232. os_str_slice
   233. 3.233. os_string_pathbuf_leak
   234. 3.234. os_string_truncate
   235. 3.235. panic_abort
   236. 3.236. panic_always_abort
   237. 3.237. panic_backtrace_config
   238. 3.238. panic_can_unwind
   239. 3.239. panic_internals
   240. 3.240. panic_payload_as_str
   241. 3.241. panic_unwind
   242. 3.242. panic_update_hook
   243. 3.243. partial_ord_chaining_methods
   244. 3.244. path_add_extension
   245. 3.245. path_file_prefix
   246. 3.246. pattern
   247. 3.247. pattern_type_macro
   248. 3.248. pattern_type_range_trait
   249. 3.249. peer_credentials_unix_socket
   250. 3.250. phantom_variance_markers
   251. 3.251. pin_coerce_unsized_trait
   252. 3.252. pointer_is_aligned_to
   253. 3.253. pointer_like_trait
   254. 3.254. pointer_try_cast_aligned
   255. 3.255. portable_simd
   256. 3.256. prelude_future
   257. 3.257. prelude_next
   258. 3.258. print_internals
   259. 3.259. proc_macro_def_site
   260. 3.260. proc_macro_diagnostic
   261. 3.261. proc_macro_expand
   262. 3.262. proc_macro_internals
   263. 3.263. proc_macro_quote
   264. 3.264. proc_macro_span
   265. 3.265. proc_macro_totokens
   266. 3.266. proc_macro_tracked_env
   267. 3.267. proc_macro_value
   268. 3.268. process_chroot
   269. 3.269. process_exitcode_internals
   270. 3.270. process_internals
   271. 3.271. profiler_runtime_lib
   272. 3.272. ptr_alignment_type
   273. 3.273. ptr_as_ref_unchecked
   274. 3.274. ptr_as_uninit
   275. 3.275. ptr_internals
   276. 3.276. ptr_mask
   277. 3.277. ptr_metadata
   278. 3.278. pub_crate_should_not_need_unstable_attr
   279. 3.279. random
   280. 3.280. range_bounds_is_empty
   281. 3.281. range_into_bounds
   282. 3.282. raw_os_error_ty
   283. 3.283. raw_slice_split
   284. 3.284. raw_vec_internals
   285. 3.285. read_buf
   286. 3.286. reentrant_lock
   287. 3.287. restricted_std
   288. 3.288. result_flattening
   289. 3.289. round_char_boundary
   290. 3.290. rt
   291. 3.291. rwlock_downgrade
   292. 3.292. sealed
   293. 3.293. seek_io_take_position
   294. 3.294. seek_stream_len
   295. 3.295. set_ptr_value
   296. 3.296. setgroups
   297. 3.297. sgx_platform
   298. 3.298. sized_type_properties
   299. 3.299. slice_as_array
   300. 3.300. slice_concat_ext
   301. 3.301. slice_concat_trait
   302. 3.302. slice_from_ptr_range
   303. 3.303. slice_index_methods
   304. 3.304. slice_internals
   305. 3.305. slice_iter_mut_as_mut_slice
   306. 3.306. slice_partition_dedup
   307. 3.307. slice_pattern
   308. 3.308. slice_ptr_get
   309. 3.309. slice_range
   310. 3.310. slice_split_once
   311. 3.311. slice_swap_unchecked
   312. 3.312. solid_ext
   313. 3.313. sort_floats
   314. 3.314. split_array
   315. 3.315. split_as_slice
   316. 3.316. std_internals
   317. 3.317. stdarch_arm_feature_detection
   318. 3.318. stdarch_mips_feature_detection
   319. 3.319. stdarch_powerpc_feature_detection
   320. 3.320. stdarch_s390x_feature_detection
   321. 3.321. stdio_makes_pipe
   322. 3.322. step_trait
   323. 3.323. str_as_str
   324. 3.324. str_from_raw_parts
   325. 3.325. str_from_utf16_endian
   326. 3.326. str_internals
   327. 3.327. str_lines_remainder
   328. 3.328. str_split_inclusive_remainder
   329. 3.329. str_split_remainder
   330. 3.330. str_split_whitespace_remainder
   331. 3.331. strict_overflow_ops
   332. 3.332. strict_provenance_atomic_ptr
   333. 3.333. string_from_utf8_lossy_owned
   334. 3.334. string_into_chars
   335. 3.335. string_remove_matches
   336. 3.336. substr_range
   337. 3.337. sync_poison_mod
   338. 3.338. sync_unsafe_cell
   339. 3.339. tcp_deferaccept
   340. 3.340. tcp_linger
   341. 3.341. tcp_quickack
   342. 3.342. tcplistener_into_incoming
   343. 3.343. temporary_niche_types
   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. unchecked_neg
   370. 3.370. unchecked_shifts
   371. 3.371. unicode_internals
   372. 3.372. unique_rc_arc
   373. 3.373. unix_file_vectored_at
   374. 3.374. unix_mkfifo
   375. 3.375. unix_set_mark
   376. 3.376. unix_socket_ancillary_data
   377. 3.377. unix_socket_peek
   378. 3.378. unsafe_cell_access
   379. 3.379. unsafe_pinned
   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_deque_pop_if
   389. 3.389. vec_deque_truncate_front
   390. 3.390. vec_into_raw_parts
   391. 3.391. vec_push_within_capacity
   392. 3.392. vec_split_at_spare
   393. 3.393. wasi_ext
   394. 3.394. windows_by_handle
   395. 3.395. windows_c
   396. 3.396. windows_change_time
   397. 3.397. windows_handle
   398. 3.398. windows_net
   399. 3.399. windows_process_exit_code_from
   400. 3.400. windows_process_extensions_async_pipes
   401. 3.401. windows_process_extensions_force_quotes
   402. 3.402. windows_process_extensions_main_thread_handle
   403. 3.403. windows_process_extensions_raw_attribute
   404. 3.404. windows_process_extensions_show_window
   405. 3.405. windows_process_extensions_startupinfo
   406. 3.406. windows_stdio
   407. 3.407. wrapping_int_impl
   408. 3.408. wrapping_next_power_of_two
   409. 3.409. write_all_vectored
   410. 3.410. yeet_desugar_details