1. The Unstable Book
2. 1. Compiler environment variables
   1. 1.1. COLORTERM
   2. 1.2. QNX_TARGET
   3. 1.3. RUSTC_BLESS
   4. 1.4. RUSTC_BOOTSTRAP
   5. 1.5. RUSTC_BREAK_ON_ICE
   6. 1.6. RUSTC_CTFE_BACKTRACE
   7. 1.7. RUSTC_FORCE_RUSTC_VERSION
   8. 1.8. RUSTC_GRAPHVIZ_FONT
   9. 1.9. RUSTC_ICE
   10. 1.10. RUSTC_LOG
   11. 1.11. RUSTC_OVERRIDE_VERSION_STRING
   12. 1.12. RUSTC_TRANSLATION_NO_DEBUG_ASSERT
   13. 1.13. RUSTC_WINDOWS_RC
   14. 1.14. RUST_BACKTRACE
   15. 1.15. RUST_DEP_GRAPH
   16. 1.16. RUST_DEP_GRAPH_FILTER
   17. 1.17. RUST_FORBID_DEP_GRAPH_EDGE
   18. 1.18. RUST_MIN_STACK
   19. 1.19. RUST_TARGET_PATH
   20. 1.20. SDKROOT
   21. 1.21. TERM
   22. 1.22. UNSTABLE_RUSTDOC_TEST_LINE
   23. 1.23. UNSTABLE_RUSTDOC_TEST_PATH
3. 2. Compiler flags
   1. 2.1. allow_features
   2. 2.2. annotate_moves
   3. 2.3. autodiff
   4. 2.4. branch_protection
   5. 2.5. cf_protection
   6. 2.6. codegen_backend
   7. 2.7. codegen_options
   8. 2.8. codegen_source_order
   9. 2.9. control_flow_guard
   10. 2.10. coverage_options
   11. 2.11. crate_attr
   12. 2.12. debug_info_for_profiling
   13. 2.13. debug_info_type_line_numbers
   14. 2.14. default_visibility
   15. 2.15. direct_access_external_data
   16. 2.16. dump_mono_stats
   17. 2.17. dump_mono_stats_format
   18. 2.18. dylib_lto
   19. 2.19. eagerly_emit_delayed_bugs
   20. 2.20. embed_metadata
   21. 2.21. embed_source
   22. 2.22. emit_stack_sizes
   23. 2.23. emscripten_wasm_eh
   24. 2.24. env_set
   25. 2.25. export_executable_symbols
   26. 2.26. extern_options
   27. 2.27. external_clangrt
   28. 2.28. fixed_x18
   29. 2.29. fmt_debug
   30. 2.30. function_return
   31. 2.31. hint_mostly_unused
   32. 2.32. indirect_branch_cs_prefix
   33. 2.33. instrument_xray
   34. 2.34. large_data_threshold
   35. 2.35. link_native_libraries
   36. 2.36. lint_llvm_ir
   37. 2.37. llvm_module_flag
   38. 2.38. location_detail
   39. 2.39. macro_stats
   40. 2.40. min_function_alignment
   41. 2.41. move_size_limit
   42. 2.42. no_parallel_llvm
   43. 2.43. no_steal_thir
   44. 2.44. no_unique_section_names
   45. 2.45. offload
   46. 2.46. on_broken_pipe
   47. 2.47. patchable_function_entry
   48. 2.48. print_check_cfg
   49. 2.49. print_crate_root_lint_levels
   50. 2.50. print_supported_crate_types
   51. 2.51. profile_sample_use
   52. 2.52. randomize_layout
   53. 2.53. reg_struct_return
   54. 2.54. regparm
   55. 2.55. remap_cwd_prefix
   56. 2.56. report_time
   57. 2.57. sanitizer
   58. 2.58. self_profile
   59. 2.59. self_profile_events
   60. 2.60. shell_argfiles
   61. 2.61. small_data_threshold
   62. 2.62. split_dwarf_out_dir
   63. 2.63. src_hash_algorithm
   64. 2.64. temps_dir
   65. 2.65. terminal_urls
   66. 2.66. tiny_const_eval_limit
   67. 2.67. tls_model
   68. 2.68. track_diagnostics
   69. 2.69. treat_err_as_bug
   70. 2.70. ub_checks
   71. 2.71. unsound_mir_opts
   72. 2.72. verbose_asm
   73. 2.73. virtual_function_elimination
   74. 2.74. wasm_c_abi
4. 3. Language features
   1. 3.1. aarch64_unstable_target_feature
   2. 3.2. aarch64_ver_target_feature
   3. 3.3. abi_avr_interrupt
   4. 3.4. abi_cmse_nonsecure_call
   5. 3.5. abi_custom
   6. 3.6. abi_gpu_kernel
   7. 3.7. abi_msp430_interrupt
   8. 3.8. abi_ptx
   9. 3.9. abi_riscv_interrupt
   10. 3.10. abi_unadjusted
   11. 3.11. abi_vectorcall
   12. 3.12. abi_x86_interrupt
   13. 3.13. adt_const_params
   14. 3.14. alloc_error_handler
   15. 3.15. allocator_internals
   16. 3.16. allow_internal_unsafe
   17. 3.17. allow_internal_unstable
   18. 3.18. anonymous_lifetime_in_impl_trait
   19. 3.19. apx_target_feature
   20. 3.20. arbitrary_self_types
   21. 3.21. arbitrary_self_types_pointers
   22. 3.22. arm_target_feature
   23. 3.23. asm_experimental_arch
   24. 3.24. asm_experimental_reg
   25. 3.25. asm_goto_with_outputs
   26. 3.26. asm_unwind
   27. 3.27. associated_type_defaults
   28. 3.28. async_drop
   29. 3.29. async_fn_in_dyn_trait
   30. 3.30. async_fn_track_caller
   31. 3.31. async_for_loop
   32. 3.32. async_trait_bounds
   33. 3.33. auto_traits
   34. 3.34. avx10_target_feature
   35. 3.35. box_patterns
   36. 3.36. bpf_target_feature
   37. 3.37. builtin_syntax
   38. 3.38. c_variadic
   39. 3.39. c_variadic_naked_functions
   40. 3.40. cfg_contract_checks
   41. 3.41. cfg_emscripten_wasm_eh
   42. 3.42. cfg_overflow_checks
   43. 3.43. cfg_relocation_model
   44. 3.44. cfg_sanitize
   45. 3.45. cfg_sanitizer_cfi
   46. 3.46. cfg_target_compact
   47. 3.47. cfg_target_has_atomic
   48. 3.48. cfg_target_has_atomic_equal_alignment
   49. 3.49. cfg_target_has_reliable_f16_f128
   50. 3.50. cfg_target_thread_local
   51. 3.51. cfg_ub_checks
   52. 3.52. cfg_version
   53. 3.53. cfi_encoding
   54. 3.54. closure_lifetime_binder
   55. 3.55. closure_track_caller
   56. 3.56. cmse_nonsecure_entry
   57. 3.57. compiler_builtins
   58. 3.58. const_async_blocks
   59. 3.59. const_block_items
   60. 3.60. const_closures
   61. 3.61. const_destruct
   62. 3.62. const_for
   63. 3.63. const_precise_live_drops
   64. 3.64. const_trait_impl
   65. 3.65. const_try
   66. 3.66. contracts
   67. 3.67. contracts_internals
   68. 3.68. coroutine_clone
   69. 3.69. coroutines
   70. 3.70. coverage_attribute
   71. 3.71. csky_target_feature
   72. 3.72. custom_inner_attributes
   73. 3.73. custom_mir
   74. 3.74. custom_test_frameworks
   75. 3.75. decl_macro
   76. 3.76. default_field_values
   77. 3.77. deprecated_safe
   78. 3.78. deprecated_suggestion
   79. 3.79. deref_patterns
   80. 3.80. derive_from
   81. 3.81. diagnostic_on_const
   82. 3.82. doc_cfg
   83. 3.83. doc_masked
   84. 3.84. doc_notable_trait
   85. 3.85. dropck_eyepatch
   86. 3.86. effective_target_features
   87. 3.87. eii_internals
   88. 3.88. ergonomic_clones
   89. 3.89. ermsb_target_feature
   90. 3.90. exhaustive_patterns
   91. 3.91. explicit_extern_abis
   92. 3.92. explicit_tail_calls
   93. 3.93. export_stable
   94. 3.94. extern_item_impls
   95. 3.95. extern_types
   96. 3.96. f128
   97. 3.97. f16
   98. 3.98. ffi_const
   99. 3.99. ffi_pure
   100. 3.100. fmt_debug
   101. 3.101. fn_align
   102. 3.102. fn_delegation
   103. 3.103. freeze_impls
   104. 3.104. frontmatter
   105. 3.105. fundamental
   106. 3.106. gen_blocks
   107. 3.107. generic_assert
   108. 3.108. generic_const_exprs
   109. 3.109. generic_const_items
   110. 3.110. generic_const_parameter_types
   111. 3.111. generic_pattern_types
   112. 3.112. global_registration
   113. 3.113. guard_patterns
   114. 3.114. half_open_range_patterns_in_slices
   115. 3.115. hexagon_target_feature
   116. 3.116. if_let_guard
   117. 3.117. impl_trait_in_assoc_type
   118. 3.118. impl_trait_in_bindings
   119. 3.119. impl_trait_in_fn_trait_return
   120. 3.120. import_trait_associated_functions
   121. 3.121. inherent_associated_types
   122. 3.122. intra_doc_pointers
   123. 3.123. intrinsics
   124. 3.124. lahfsahf_target_feature
   125. 3.125. lang_items
   126. 3.126. large_assignments
   127. 3.127. lazy_type_alias
   128. 3.128. link_arg_attribute
   129. 3.129. link_cfg
   130. 3.130. link_llvm_intrinsics
   131. 3.131. linkage
   132. 3.132. loongarch_target_feature
   133. 3.133. loop_match
   134. 3.134. m68k_target_feature
   135. 3.135. macro_attr
   136. 3.136. macro_derive
   137. 3.137. macro_metavar_expr
   138. 3.138. macro_metavar_expr_concat
   139. 3.139. marker_trait_attr
   140. 3.140. min_generic_const_args
   141. 3.141. min_specialization
   142. 3.142. mips_target_feature
   143. 3.143. more_maybe_bounds
   144. 3.144. more_qualified_paths
   145. 3.145. movrs_target_feature
   146. 3.146. multiple_supertrait_upcastable
   147. 3.147. must_not_suspend
   148. 3.148. mut_ref
   149. 3.149. naked_functions_rustic_abi
   150. 3.150. naked_functions_target_feature
   151. 3.151. native_link_modifiers_as_needed
   152. 3.152. needs_panic_runtime
   153. 3.153. negative_bounds
   154. 3.154. negative_impls
   155. 3.155. never_patterns
   156. 3.156. never_type
   157. 3.157. new_range
   158. 3.158. no_core
   159. 3.159. non_exhaustive_omitted_patterns_lint
   160. 3.160. non_lifetime_binders
   161. 3.161. nvptx_target_feature
   162. 3.162. offset_of_enum
   163. 3.163. offset_of_slice
   164. 3.164. optimize_attribute
   165. 3.165. panic_runtime
   166. 3.166. patchable_function_entry
   167. 3.167. pattern_complexity_limit
   168. 3.168. pattern_types
   169. 3.169. pin_ergonomics
   170. 3.170. postfix_match
   171. 3.171. powerpc_target_feature
   172. 3.172. prelude_import
   173. 3.173. prfchw_target_feature
   174. 3.174. proc_macro_hygiene
   175. 3.175. profiler_runtime
   176. 3.176. raw_dylib_elf
   177. 3.177. reborrow
   178. 3.178. ref_pat_eat_one_layer_2024
   179. 3.179. ref_pat_eat_one_layer_2024_structural
   180. 3.180. register_tool
   181. 3.181. repr_simd
   182. 3.182. return_type_notation
   183. 3.183. riscv_target_feature
   184. 3.184. rtm_target_feature
   185. 3.185. rust_cold_cc
   186. 3.186. rust_preserve_none_cc
   187. 3.187. rustc_allow_const_fn_unstable
   188. 3.188. rustc_attrs
   189. 3.189. rustc_private
   190. 3.190. rustdoc_internals
   191. 3.191. rustdoc_missing_doc_code_examples
   192. 3.192. s390x_target_feature
   193. 3.193. sanitize
   194. 3.194. simd_ffi
   195. 3.195. sized_hierarchy
   196. 3.196. sparc_target_feature
   197. 3.197. specialization
   198. 3.198. staged_api
   199. 3.199. static_align
   200. 3.200. stmt_expr_attributes
   201. 3.201. strict_provenance_lints
   202. 3.202. structural_match
   203. 3.203. super_let
   204. 3.204. supertrait_item_shadowing
   205. 3.205. target_feature_inline_always
   206. 3.206. test_unstable_lint
   207. 3.207. thread_local
   208. 3.208. trait_alias
   209. 3.209. transmute_generic_consts
   210. 3.210. transparent_unions
   211. 3.211. trivial_bounds
   212. 3.212. try_blocks
   213. 3.213. try_blocks_heterogeneous
   214. 3.214. type_alias_impl_trait
   215. 3.215. type_changing_struct_update
   216. 3.216. unboxed_closures
   217. 3.217. unqualified_local_imports
   218. 3.218. unsafe_binders
   219. 3.219. unsafe_fields
   220. 3.220. unsized_const_params
   221. 3.221. unsized_fn_params
   222. 3.222. used_with_arg
   223. 3.223. wasm_target_feature
   224. 3.224. where_clause_attrs
   225. 3.225. with_negative_coherence
   226. 3.226. x86_amx_intrinsics
   227. 3.227. x87_target_feature
   228. 3.228. xop_target_feature
   229. 3.229. yeet_expr
   230. 3.230. yield_expr
5. 4. Library Features
   1. 4.1. abort_unwind
   2. 4.2. acceptfilter
   3. 4.3. addr_parse_ascii
   4. 4.4. align_to_uninit_mut
   5. 4.5. alloc_error_hook
   6. 4.6. alloc_internals
   7. 4.7. alloc_slice_into_array
   8. 4.8. allocator_api
   9. 4.9. alloctests
   10. 4.10. arc_is_unique
   11. 4.11. array_into_iter_constructors
   12. 4.12. array_ptr_get
   13. 4.13. array_try_from_fn
   14. 4.14. array_try_map
   15. 4.15. ascii_char
   16. 4.16. ascii_char_variants
   17. 4.17. assert_matches
   18. 4.18. async_fn_traits
   19. 4.19. async_gen_internals
   20. 4.20. async_iter_from_iter
   21. 4.21. async_iterator
   22. 4.22. atomic_from_mut
   23. 4.23. atomic_internals
   24. 4.24. atomic_ptr_null
   25. 4.25. atomic_try_update
   26. 4.26. autodiff
   27. 4.27. backtrace_frames
   28. 4.28. bigint_helper_methods
   29. 4.29. bikeshed_guaranteed_no_drop
   30. 4.30. binary_heap_drain_sorted
   31. 4.31. binary_heap_into_iter_sorted
   32. 4.32. binary_heap_peek_mut_refresh
   33. 4.33. bool_to_result
   34. 4.34. bound_as_ref
   35. 4.35. bound_copied
   36. 4.36. box_as_ptr
   37. 4.37. box_into_boxed_slice
   38. 4.38. box_into_inner
   39. 4.39. box_take
   40. 4.40. box_vec_non_null
   41. 4.41. breakpoint
   42. 4.42. bstr
   43. 4.43. bstr_internals
   44. 4.44. btree_cursors
   45. 4.45. btree_set_entry
   46. 4.46. btreemap_alloc
   47. 4.47. buf_read_has_data_left
   48. 4.48. bufreader_peek
   49. 4.49. c_size_t
   50. 4.50. c_void_variant
   51. 4.51. can_vector
   52. 4.52. cast_maybe_uninit
   53. 4.53. cell_get_cloned
   54. 4.54. cell_leak
   55. 4.55. cfg_accessible
   56. 4.56. cfg_eval
   57. 4.57. cfg_select
   58. 4.58. char_internals
   59. 4.59. char_max_len
   60. 4.60. clamp_magnitude
   61. 4.61. clone_from_ref
   62. 4.62. clone_to_uninit
   63. 4.63. cmp_minmax
   64. 4.64. coerce_pointee_validated
   65. 4.65. coerce_unsized
   66. 4.66. cold_path
   67. 4.67. command_resolved_envs
   68. 4.68. concat_bytes
   69. 4.69. const_alloc_error
   70. 4.70. const_array
   71. 4.71. const_bool
   72. 4.72. const_btree_len
   73. 4.73. const_carrying_mul_add
   74. 4.74. const_cell_traits
   75. 4.75. const_clone
   76. 4.76. const_cmp
   77. 4.77. const_control_flow
   78. 4.78. const_convert
   79. 4.79. const_default
   80. 4.80. const_drop_guard
   81. 4.81. const_drop_in_place
   82. 4.82. const_eval_select
   83. 4.83. const_format_args
   84. 4.84. const_heap
   85. 4.85. const_index
   86. 4.86. const_manually_drop_take
   87. 4.87. const_never_short_circuit
   88. 4.88. const_ops
   89. 4.89. const_option_ops
   90. 4.90. const_range
   91. 4.91. const_range_bounds
   92. 4.92. const_raw_ptr_comparison
   93. 4.93. const_ref_cell
   94. 4.94. const_result_trait_fn
   95. 4.95. const_result_unwrap_unchecked
   96. 4.96. const_select_unpredictable
   97. 4.97. const_slice_from_mut_ptr_range
   98. 4.98. const_slice_from_ptr_range
   99. 4.99. const_slice_make_iter
   100. 4.100. const_split_off_first_last
   101. 4.101. const_swap_with_slice
   102. 4.102. const_try_residual
   103. 4.103. const_type_name
   104. 4.104. container_error_extra
   105. 4.105. context_ext
   106. 4.106. control_flow_into_value
   107. 4.107. control_flow_ok
   108. 4.108. convert_float_to_int
   109. 4.109. copied_into_inner
   110. 4.110. core_float_math
   111. 4.111. core_intrinsics
   112. 4.112. core_intrinsics_fallbacks
   113. 4.113. core_io_borrowed_buf
   114. 4.114. core_private_bignum
   115. 4.115. core_private_diy_float
   116. 4.116. coroutine_trait
   117. 4.117. cow_is_borrowed
   118. 4.118. cstr_bytes
   119. 4.119. cstr_display
   120. 4.120. cstr_internals
   121. 4.121. current_thread_id
   122. 4.122. cursor_split
   123. 4.123. darwin_objc
   124. 4.124. deadline_api
   125. 4.125. debug_closure_helpers
   126. 4.126. dec2flt
   127. 4.127. deque_extend_front
   128. 4.128. deref_pure_trait
   129. 4.129. derive_clone_copy_internals
   130. 4.130. derive_coerce_pointee
   131. 4.131. derive_const
   132. 4.132. derive_eq_internals
   133. 4.133. dir_entry_ext2
   134. 4.134. dirfd
   135. 4.135. dirhandle
   136. 4.136. discriminant_kind
   137. 4.137. disjoint_bitor
   138. 4.138. dispatch_from_dyn
   139. 4.139. downcast_unchecked
   140. 4.140. drain_keep_rest
   141. 4.141. drop_guard
   142. 4.142. duration_constants
   143. 4.143. duration_constructors
   144. 4.144. duration_integer_division
   145. 4.145. duration_millis_float
   146. 4.146. duration_units
   147. 4.147. edition_panic
   148. 4.148. error_generic_member_access
   149. 4.149. error_iter
   150. 4.150. error_reporter
   151. 4.151. error_type_id
   152. 4.152. exact_bitshifts
   153. 4.153. exact_div
   154. 4.154. exact_size_is_empty
   155. 4.155. exclusive_wrapper
   156. 4.156. exit_status_error
   157. 4.157. exitcode_exit_method
   158. 4.158. extend_one
   159. 4.159. extend_one_unchecked
   160. 4.160. fd
   161. 4.161. file_buffered
   162. 4.162. float_algebraic
   163. 4.163. float_erf
   164. 4.164. float_gamma
   165. 4.165. float_minimum_maximum
   166. 4.166. flt2dec
   167. 4.167. fmt_arguments_from_str
   168. 4.168. fmt_helpers_for_derive
   169. 4.169. fmt_internals
   170. 4.170. fn_ptr_trait
   171. 4.171. fn_traits
   172. 4.172. forget_unsized
   173. 4.173. format_args_nl
   174. 4.174. formatting_options
   175. 4.175. freeze
   176. 4.176. fs_set_times
   177. 4.177. funnel_shifts
   178. 4.178. future_join
   179. 4.179. gen_future
   180. 4.180. generic_assert_internals
   181. 4.181. generic_atomic
   182. 4.182. get_disjoint_mut_helpers
   183. 4.183. get_mut_unchecked
   184. 4.184. gethostname
   185. 4.185. gpu_intrinsics
   186. 4.186. hash_set_entry
   187. 4.187. hasher_prefixfree_extras
   188. 4.188. hashmap_internals
   189. 4.189. hint_must_use
   190. 4.190. hint_prefetch
   191. 4.191. inplace_iteration
   192. 4.192. int_format_into
   193. 4.193. int_from_ascii
   194. 4.194. int_lowest_highest_one
   195. 4.195. int_roundings
   196. 4.196. integer_atomics
   197. 4.197. internal_impls_macro
   198. 4.198. internal_output_capture
   199. 4.199. io_const_error
   200. 4.200. io_const_error_internals
   201. 4.201. io_error_inprogress
   202. 4.202. io_error_more
   203. 4.203. io_error_uncategorized
   204. 4.204. io_slice_as_bytes
   205. 4.205. ip
   206. 4.206. ip_as_octets
   207. 4.207. is_ascii_octdigit
   208. 4.208. is_loongarch_feature_detected
   209. 4.209. is_riscv_feature_detected
   210. 4.210. isolate_most_least_significant_one
   211. 4.211. iter_advance_by
   212. 4.212. iter_array_chunks
   213. 4.213. iter_collect_into
   214. 4.214. iter_from_coroutine
   215. 4.215. iter_intersperse
   216. 4.216. iter_is_partitioned
   217. 4.217. iter_macro
   218. 4.218. iter_map_windows
   219. 4.219. iter_next_chunk
   220. 4.220. iter_order_by
   221. 4.221. iter_partition_in_place
   222. 4.222. iterator_try_collect
   223. 4.223. iterator_try_reduce
   224. 4.224. junction_point
   225. 4.225. layout_for_ptr
   226. 4.226. lazy_cell_into_inner
   227. 4.227. legacy_receiver_trait
   228. 4.228. liballoc_internals
   229. 4.229. libstd_sys_internals
   230. 4.230. likely_unlikely
   231. 4.231. linked_list_cursors
   232. 4.232. linked_list_remove
   233. 4.233. linked_list_retain
   234. 4.234. linux_pidfd
   235. 4.235. local_key_cell_update
   236. 4.236. local_waker
   237. 4.237. lock_value_accessors
   238. 4.238. log_syntax
   239. 4.239. map_try_insert
   240. 4.240. mapped_lock_guards
   241. 4.241. maybe_dangling
   242. 4.242. maybe_uninit_array_assume_init
   243. 4.243. maybe_uninit_as_bytes
   244. 4.244. maybe_uninit_fill
   245. 4.245. maybe_uninit_uninit_array_transpose
   246. 4.246. mem_conjure_zst
   247. 4.247. mem_copy_fn
   248. 4.248. min_const_control_flow
   249. 4.249. more_float_constants
   250. 4.250. motor_ext
   251. 4.251. mpmc_channel
   252. 4.252. mutex_data_ptr
   253. 4.253. new_range_api
   254. 4.254. next_index
   255. 4.255. nonpoison_condvar
   256. 4.256. nonpoison_mutex
   257. 4.257. nonpoison_rwlock
   258. 4.258. nonzero_bitwise
   259. 4.259. nonzero_from_mut
   260. 4.260. nonzero_internals
   261. 4.261. nonzero_ops
   262. 4.262. normalize_lexically
   263. 4.263. numfmt
   264. 4.264. objc_class_variant
   265. 4.265. objc_selector_variant
   266. 4.266. once_cell_get_mut
   267. 4.267. once_cell_try
   268. 4.268. once_cell_try_insert
   269. 4.269. one_sided_range
   270. 4.270. oneshot_channel
   271. 4.271. option_array_transpose
   272. 4.272. option_into_flat_iter
   273. 4.273. option_reduce
   274. 4.274. option_reference_flattening
   275. 4.275. option_zip
   276. 4.276. os_str_slice
   277. 4.277. os_string_truncate
   278. 4.278. panic_abort
   279. 4.279. panic_always_abort
   280. 4.280. panic_backtrace_config
   281. 4.281. panic_can_unwind
   282. 4.282. panic_internals
   283. 4.283. panic_unwind
   284. 4.284. panic_update_hook
   285. 4.285. partial_ord_chaining_methods
   286. 4.286. path_is_empty
   287. 4.287. path_trailing_sep
   288. 4.288. pattern
   289. 4.289. pattern_type_macro
   290. 4.290. pattern_type_range_trait
   291. 4.291. peer_credentials_unix_socket
   292. 4.292. phantom_variance_markers
   293. 4.293. pin_coerce_unsized_trait
   294. 4.294. pin_derefmut_internals
   295. 4.295. pointer_is_aligned_to
   296. 4.296. pointer_try_cast_aligned
   297. 4.297. portable_simd
   298. 4.298. prelude_future
   299. 4.299. prelude_next
   300. 4.300. print_internals
   301. 4.301. proc_macro_def_site
   302. 4.302. proc_macro_diagnostic
   303. 4.303. proc_macro_expand
   304. 4.304. proc_macro_internals
   305. 4.305. proc_macro_quote
   306. 4.306. proc_macro_span
   307. 4.307. proc_macro_totokens
   308. 4.308. proc_macro_tracked_env
   309. 4.309. proc_macro_tracked_path
   310. 4.310. proc_macro_value
   311. 4.311. process_chroot
   312. 4.312. process_exitcode_internals
   313. 4.313. process_internals
   314. 4.314. process_setsid
   315. 4.315. profiler_runtime_lib
   316. 4.316. profiling_marker_api
   317. 4.317. ptr_alignment_type
   318. 4.318. ptr_as_ref_unchecked
   319. 4.319. ptr_as_uninit
   320. 4.320. ptr_cast_array
   321. 4.321. ptr_internals
   322. 4.322. ptr_mask
   323. 4.323. ptr_metadata
   324. 4.324. pub_crate_should_not_need_unstable_attr
   325. 4.325. push_mut
   326. 4.326. random
   327. 4.327. range_bounds_is_empty
   328. 4.328. range_into_bounds
   329. 4.329. raw_os_error_ty
   330. 4.330. raw_slice_split
   331. 4.331. raw_vec_internals
   332. 4.332. read_array
   333. 4.333. read_buf
   334. 4.334. read_buf_at
   335. 4.335. reentrant_lock
   336. 4.336. reentrant_lock_data_ptr
   337. 4.337. refcell_try_map
   338. 4.338. restricted_std
   339. 4.339. result_option_map_or_default
   340. 4.340. rev_into_inner
   341. 4.341. rt
   342. 4.342. rwlock_data_ptr
   343. 4.343. sealed
   344. 4.344. seek_io_take_position
   345. 4.345. seek_stream_len
   346. 4.346. set_permissions_nofollow
   347. 4.347. set_ptr_value
   348. 4.348. setgroups
   349. 4.349. sgx_platform
   350. 4.350. sized_type_properties
   351. 4.351. slice_concat_ext
   352. 4.352. slice_concat_trait
   353. 4.353. slice_from_ptr_range
   354. 4.354. slice_index_methods
   355. 4.355. slice_internals
   356. 4.356. slice_iter_mut_as_mut_slice
   357. 4.357. slice_partial_sort_unstable
   358. 4.358. slice_partition_dedup
   359. 4.359. slice_pattern
   360. 4.360. slice_ptr_get
   361. 4.361. slice_range
   362. 4.362. slice_split_once
   363. 4.363. slice_swap_unchecked
   364. 4.364. sliceindex_wrappers
   365. 4.365. smart_pointer_try_map
   366. 4.366. solid_ext
   367. 4.367. sort_floats
   368. 4.368. split_array
   369. 4.369. split_as_slice
   370. 4.370. std_internals
   371. 4.371. stdarch_aarch64_feature_detection
   372. 4.372. stdarch_arm_feature_detection
   373. 4.373. stdarch_internal
   374. 4.374. stdarch_loongarch_feature_detection
   375. 4.375. stdarch_mips_feature_detection
   376. 4.376. stdarch_powerpc_feature_detection
   377. 4.377. stdarch_riscv_feature_detection
   378. 4.378. stdio_makes_pipe
   379. 4.379. stdio_swap
   380. 4.380. step_trait
   381. 4.381. str_as_str
   382. 4.382. str_from_raw_parts
   383. 4.383. str_from_utf16_endian
   384. 4.384. str_internals
   385. 4.385. str_lines_remainder
   386. 4.386. str_split_inclusive_remainder
   387. 4.387. str_split_remainder
   388. 4.388. str_split_whitespace_remainder
   389. 4.389. string_from_utf8_lossy_owned
   390. 4.390. string_into_chars
   391. 4.391. string_remove_matches
   392. 4.392. string_replace_in_place
   393. 4.393. strip_circumfix
   394. 4.394. substr_range
   395. 4.395. sync_nonpoison
   396. 4.396. sync_poison_mod
   397. 4.397. sync_unsafe_cell
   398. 4.398. tcp_deferaccept
   399. 4.399. tcp_linger
   400. 4.400. tcplistener_into_incoming
   401. 4.401. temporary_niche_types
   402. 4.402. test
   403. 4.403. thin_box
   404. 4.404. thread_id_value
   405. 4.405. thread_local_internals
   406. 4.406. thread_raw
   407. 4.407. thread_sleep_until
   408. 4.408. thread_spawn_hook
   409. 4.409. time_saturating_systemtime
   410. 4.410. time_systemtime_limits
   411. 4.411. trace_macros
   412. 4.412. transmutability
   413. 4.413. trim_prefix_suffix
   414. 4.414. trivial_clone
   415. 4.415. trusted_fused
   416. 4.416. trusted_len
   417. 4.417. trusted_len_next_unchecked
   418. 4.418. trusted_random_access
   419. 4.419. trusted_step
   420. 4.420. try_as_dyn
   421. 4.421. try_find
   422. 4.422. try_reserve_kind
   423. 4.423. try_trait_v2
   424. 4.424. try_trait_v2_residual
   425. 4.425. try_trait_v2_yeet
   426. 4.426. try_with_capacity
   427. 4.427. tuple_trait
   428. 4.428. type_ascription
   429. 4.429. type_info
   430. 4.430. ub_checks
   431. 4.431. uefi_std
   432. 4.432. uint_bit_width
   433. 4.433. uint_gather_scatter_bits
   434. 4.434. unicode_internals
   435. 4.435. unique_rc_arc
   436. 4.436. unix_file_vectored_at
   437. 4.437. unix_mkfifo
   438. 4.438. unix_send_signal
   439. 4.439. unix_set_mark
   440. 4.440. unix_socket_ancillary_data
   441. 4.441. unix_socket_exclbind
   442. 4.442. unix_socket_peek
   443. 4.443. unsafe_cell_access
   444. 4.444. unsafe_pinned
   445. 4.445. unsize
   446. 4.446. unwrap_infallible
   447. 4.447. update_panic_count
   448. 4.448. utf16_extra
   449. 4.449. variant_count
   450. 4.450. vec_deque_extract_if
   451. 4.451. vec_deque_iter_as_slices
   452. 4.452. vec_deque_truncate_front
   453. 4.453. vec_from_fn
   454. 4.454. vec_into_chunks
   455. 4.455. vec_peek_mut
   456. 4.456. vec_push_within_capacity
   457. 4.457. vec_recycle
   458. 4.458. vec_split_at_spare
   459. 4.459. vec_try_remove
   460. 4.460. waker_fn
   461. 4.461. waker_from_fn_ptr
   462. 4.462. wasi_ext
   463. 4.463. windows_by_handle
   464. 4.464. windows_c
   465. 4.465. windows_change_time
   466. 4.466. windows_freeze_file_times
   467. 4.467. windows_handle
   468. 4.468. windows_net
   469. 4.469. windows_process_exit_code_from
   470. 4.470. windows_process_extensions_async_pipes
   471. 4.471. windows_process_extensions_force_quotes
   472. 4.472. windows_process_extensions_inherit_handles
   473. 4.473. windows_process_extensions_main_thread_handle
   474. 4.474. windows_process_extensions_raw_attribute
   475. 4.475. windows_process_extensions_show_window
   476. 4.476. windows_process_extensions_startupinfo
   477. 4.477. windows_stdio
   478. 4.478. wrapping_int_impl
   479. 4.479. wrapping_next_power_of_two
   480. 4.480. write_all_vectored
   481. 4.481. wtf8_internals
   482. 4.482. yeet_desugar_details