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_WINDOWS_RC
   13. 1.13. RUST_BACKTRACE
   14. 1.14. RUST_DEP_GRAPH
   15. 1.15. RUST_DEP_GRAPH_FILTER
   16. 1.16. RUST_FORBID_DEP_GRAPH_EDGE
   17. 1.17. RUST_MIN_STACK
   18. 1.18. RUST_TARGET_PATH
   19. 1.19. SDKROOT
   20. 1.20. TERM
   21. 1.21. UNSTABLE_RUSTDOC_TEST_LINE
   22. 1.22. 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. cache_proc_macros
   6. 2.6. cf_protection
   7. 2.7. codegen_backend
   8. 2.8. codegen_options
   9. 2.9. codegen_source_order
   10. 2.10. control_flow_guard
   11. 2.11. coverage_options
   12. 2.12. crate_attr
   13. 2.13. debug_info_for_profiling
   14. 2.14. debug_info_type_line_numbers
   15. 2.15. default_visibility
   16. 2.16. direct_access_external_data
   17. 2.17. dump_mono_stats
   18. 2.18. dump_mono_stats_format
   19. 2.19. dylib_lto
   20. 2.20. eagerly_emit_delayed_bugs
   21. 2.21. embed_metadata
   22. 2.22. embed_source
   23. 2.23. emit_stack_sizes
   24. 2.24. emscripten_wasm_eh
   25. 2.25. env_set
   26. 2.26. export_executable_symbols
   27. 2.27. extern_options
   28. 2.28. external_clangrt
   29. 2.29. fixed_x18
   30. 2.30. fmt_debug
   31. 2.31. function_return
   32. 2.32. hint_mostly_unused
   33. 2.33. indirect_branch_cs_prefix
   34. 2.34. instrument_xray
   35. 2.35. large_data_threshold
   36. 2.36. link_native_libraries
   37. 2.37. lint_llvm_ir
   38. 2.38. llvm_module_flag
   39. 2.39. llvm_writable
   40. 2.40. location_detail
   41. 2.41. macro_stats
   42. 2.42. min_function_alignment
   43. 2.43. min_recursive_limit
   44. 2.44. move_size_limit
   45. 2.45. no_parallel_llvm
   46. 2.46. no_steal_thir
   47. 2.47. no_unique_section_names
   48. 2.48. offload
   49. 2.49. on_broken_pipe
   50. 2.50. patchable_function_entry
   51. 2.51. print_check_cfg
   52. 2.52. print_crate_root_lint_levels
   53. 2.53. print_supported_crate_types
   54. 2.54. profile_sample_use
   55. 2.55. randomize_layout
   56. 2.56. reg_struct_return
   57. 2.57. regparm
   58. 2.58. remap_cwd_prefix
   59. 2.59. report_time
   60. 2.60. sanitizer
   61. 2.61. self_profile
   62. 2.62. self_profile_events
   63. 2.63. shell_argfiles
   64. 2.64. small_data_threshold
   65. 2.65. split_dwarf_out_dir
   66. 2.66. src_hash_algorithm
   67. 2.67. temps_dir
   68. 2.68. terminal_urls
   69. 2.69. tiny_const_eval_limit
   70. 2.70. tls_model
   71. 2.71. track_diagnostics
   72. 2.72. treat_err_as_bug
   73. 2.73. ub_checks
   74. 2.74. unsound_mir_opts
   75. 2.75. verbose_asm
   76. 2.76. virtual_function_elimination
   77. 2.77. 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. avr_target_feature
   35. 3.35. avx10_target_feature
   36. 3.36. box_patterns
   37. 3.37. bpf_target_feature
   38. 3.38. builtin_syntax
   39. 3.39. c_variadic
   40. 3.40. c_variadic_naked_functions
   41. 3.41. cfg_contract_checks
   42. 3.42. cfg_emscripten_wasm_eh
   43. 3.43. cfg_overflow_checks
   44. 3.44. cfg_relocation_model
   45. 3.45. cfg_sanitize
   46. 3.46. cfg_sanitizer_cfi
   47. 3.47. cfg_target_compact
   48. 3.48. cfg_target_has_atomic
   49. 3.49. cfg_target_has_atomic_equal_alignment
   50. 3.50. cfg_target_has_reliable_f16_f128
   51. 3.51. cfg_target_object_format
   52. 3.52. cfg_target_thread_local
   53. 3.53. cfg_ub_checks
   54. 3.54. cfg_version
   55. 3.55. cfi_encoding
   56. 3.56. closure_lifetime_binder
   57. 3.57. closure_track_caller
   58. 3.58. cmse_nonsecure_entry
   59. 3.59. compiler_builtins
   60. 3.60. const_async_blocks
   61. 3.61. const_block_items
   62. 3.62. const_c_variadic
   63. 3.63. const_closures
   64. 3.64. const_destruct
   65. 3.65. const_for
   66. 3.66. const_precise_live_drops
   67. 3.67. const_trait_impl
   68. 3.68. const_try
   69. 3.69. contracts
   70. 3.70. contracts_internals
   71. 3.71. coroutine_clone
   72. 3.72. coroutines
   73. 3.73. coverage_attribute
   74. 3.74. csky_target_feature
   75. 3.75. custom_inner_attributes
   76. 3.76. custom_mir
   77. 3.77. custom_test_frameworks
   78. 3.78. decl_macro
   79. 3.79. default_field_values
   80. 3.80. deprecated_suggestion
   81. 3.81. deref_patterns
   82. 3.82. derive_from
   83. 3.83. diagnostic_on_const
   84. 3.84. diagnostic_on_move
   85. 3.85. diagnostic_on_unknown
   86. 3.86. doc_cfg
   87. 3.87. doc_masked
   88. 3.88. doc_notable_trait
   89. 3.89. dropck_eyepatch
   90. 3.90. effective_target_features
   91. 3.91. eii_internals
   92. 3.92. ergonomic_clones
   93. 3.93. ermsb_target_feature
   94. 3.94. exhaustive_patterns
   95. 3.95. explicit_extern_abis
   96. 3.96. explicit_tail_calls
   97. 3.97. export_stable
   98. 3.98. extern_item_impls
   99. 3.99. extern_types
   100. 3.100. f128
   101. 3.101. f16
   102. 3.102. ffi_const
   103. 3.103. ffi_pure
   104. 3.104. field_projections
   105. 3.105. field_representing_type_raw
   106. 3.106. final_associated_functions
   107. 3.107. fma4_target_feature
   108. 3.108. fmt_debug
   109. 3.109. fn_align
   110. 3.110. fn_delegation
   111. 3.111. freeze_impls
   112. 3.112. frontmatter
   113. 3.113. fundamental
   114. 3.114. gen_blocks
   115. 3.115. generic_assert
   116. 3.116. generic_const_args
   117. 3.117. generic_const_exprs
   118. 3.118. generic_const_items
   119. 3.119. generic_const_parameter_types
   120. 3.120. generic_pattern_types
   121. 3.121. global_registration
   122. 3.122. guard_patterns
   123. 3.123. half_open_range_patterns_in_slices
   124. 3.124. hexagon_target_feature
   125. 3.125. impl_restriction
   126. 3.126. impl_trait_in_assoc_type
   127. 3.127. impl_trait_in_bindings
   128. 3.128. impl_trait_in_fn_trait_return
   129. 3.129. import_trait_associated_functions
   130. 3.130. inherent_associated_types
   131. 3.131. intra_doc_pointers
   132. 3.132. intrinsics
   133. 3.133. lahfsahf_target_feature
   134. 3.134. lang_items
   135. 3.135. large_assignments
   136. 3.136. lazy_type_alias
   137. 3.137. link_arg_attribute
   138. 3.138. link_cfg
   139. 3.139. link_llvm_intrinsics
   140. 3.140. linkage
   141. 3.141. loongarch_target_feature
   142. 3.142. loop_match
   143. 3.143. m68k_target_feature
   144. 3.144. macro_attr
   145. 3.145. macro_derive
   146. 3.146. macro_guard_matcher
   147. 3.147. macro_metavar_expr
   148. 3.148. macro_metavar_expr_concat
   149. 3.149. marker_trait_attr
   150. 3.150. mgca_type_const_syntax
   151. 3.151. min_adt_const_params
   152. 3.152. min_generic_const_args
   153. 3.153. min_specialization
   154. 3.154. mips_target_feature
   155. 3.155. more_maybe_bounds
   156. 3.156. more_qualified_paths
   157. 3.157. movrs_target_feature
   158. 3.158. multiple_supertrait_upcastable
   159. 3.159. must_not_suspend
   160. 3.160. mut_ref
   161. 3.161. naked_functions_rustic_abi
   162. 3.162. naked_functions_target_feature
   163. 3.163. native_link_modifiers_as_needed
   164. 3.164. needs_panic_runtime
   165. 3.165. negative_bounds
   166. 3.166. negative_impls
   167. 3.167. never_patterns
   168. 3.168. never_type
   169. 3.169. new_range
   170. 3.170. no_core
   171. 3.171. non_exhaustive_omitted_patterns_lint
   172. 3.172. non_lifetime_binders
   173. 3.173. nvptx_target_feature
   174. 3.174. offset_of_enum
   175. 3.175. offset_of_slice
   176. 3.176. optimize_attribute
   177. 3.177. panic_runtime
   178. 3.178. patchable_function_entry
   179. 3.179. pattern_complexity_limit
   180. 3.180. pattern_types
   181. 3.181. pin_ergonomics
   182. 3.182. postfix_match
   183. 3.183. powerpc_target_feature
   184. 3.184. prelude_import
   185. 3.185. prfchw_target_feature
   186. 3.186. proc_macro_hygiene
   187. 3.187. profiler_runtime
   188. 3.188. raw_dylib_elf
   189. 3.189. reborrow
   190. 3.190. ref_pat_eat_one_layer_2024
   191. 3.191. ref_pat_eat_one_layer_2024_structural
   192. 3.192. register_tool
   193. 3.193. repr_simd
   194. 3.194. return_type_notation
   195. 3.195. riscv_target_feature
   196. 3.196. rtm_target_feature
   197. 3.197. rust_cold_cc
   198. 3.198. rust_preserve_none_cc
   199. 3.199. rustc_attrs
   200. 3.200. rustc_private
   201. 3.201. rustdoc_internals
   202. 3.202. rustdoc_missing_doc_code_examples
   203. 3.203. s390x_target_feature
   204. 3.204. sanitize
   205. 3.205. simd_ffi
   206. 3.206. sized_hierarchy
   207. 3.207. sparc_target_feature
   208. 3.208. specialization
   209. 3.209. staged_api
   210. 3.210. static_align
   211. 3.211. stmt_expr_attributes
   212. 3.212. strict_provenance_lints
   213. 3.213. structural_match
   214. 3.214. super_let
   215. 3.215. supertrait_item_shadowing
   216. 3.216. target_feature_inline_always
   217. 3.217. test_incomplete_feature
   218. 3.218. test_unstable_lint
   219. 3.219. thread_local
   220. 3.220. trait_alias
   221. 3.221. transmute_generic_consts
   222. 3.222. transparent_unions
   223. 3.223. trivial_bounds
   224. 3.224. try_blocks
   225. 3.225. try_blocks_heterogeneous
   226. 3.226. type_alias_impl_trait
   227. 3.227. type_changing_struct_update
   228. 3.228. unboxed_closures
   229. 3.229. unqualified_local_imports
   230. 3.230. unsafe_binders
   231. 3.231. unsafe_fields
   232. 3.232. unsized_const_params
   233. 3.233. unsized_fn_params
   234. 3.234. used_with_arg
   235. 3.235. wasm_target_feature
   236. 3.236. where_clause_attrs
   237. 3.237. with_negative_coherence
   238. 3.238. x86_amx_intrinsics
   239. 3.239. x87_target_feature
   240. 3.240. xop_target_feature
   241. 3.241. yeet_expr
   242. 3.242. yield_expr
5. 4. Library Features
   1. 4.1. abort_immediate
   2. 4.2. abort_unwind
   3. 4.3. acceptfilter
   4. 4.4. addr_parse_ascii
   5. 4.5. align_to_uninit_mut
   6. 4.6. alloc_error_hook
   7. 4.7. alloc_internals
   8. 4.8. alloc_slice_into_array
   9. 4.9. allocator_api
   10. 4.10. alloctests
   11. 4.11. arc_is_unique
   12. 4.12. array_into_iter_constructors
   13. 4.13. array_ptr_get
   14. 4.14. array_try_from_fn
   15. 4.15. array_try_map
   16. 4.16. ascii_char
   17. 4.17. ascii_char_variants
   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. autodiff
   26. 4.26. backtrace_frames
   27. 4.27. bikeshed_guaranteed_no_drop
   28. 4.28. binary_heap_as_mut_slice
   29. 4.29. binary_heap_drain_sorted
   30. 4.30. binary_heap_from_raw_vec
   31. 4.31. binary_heap_into_iter_sorted
   32. 4.32. binary_heap_peek_mut_refresh
   33. 4.33. binary_heap_pop_if
   34. 4.34. bool_to_result
   35. 4.35. borrowed_buf_init
   36. 4.36. bound_as_ref
   37. 4.37. bound_copied
   38. 4.38. box_as_ptr
   39. 4.39. box_into_boxed_slice
   40. 4.40. box_into_inner
   41. 4.41. box_take
   42. 4.42. box_vec_non_null
   43. 4.43. breakpoint
   44. 4.44. bstr
   45. 4.45. bstr_internals
   46. 4.46. btree_cursors
   47. 4.47. btree_merge
   48. 4.48. btree_set_entry
   49. 4.49. btreemap_alloc
   50. 4.50. buf_read_has_data_left
   51. 4.51. bufreader_peek
   52. 4.52. c_size_t
   53. 4.53. c_void_variant
   54. 4.54. can_vector
   55. 4.55. case_ignorable
   56. 4.56. cast_maybe_uninit
   57. 4.57. cell_get_cloned
   58. 4.58. cell_leak
   59. 4.59. cfg_accessible
   60. 4.60. cfg_eval
   61. 4.61. char_internals
   62. 4.62. char_max_len
   63. 4.63. clamp_magnitude
   64. 4.64. clone_from_ref
   65. 4.65. clone_to_uninit
   66. 4.66. cmp_minmax
   67. 4.67. coerce_pointee_validated
   68. 4.68. coerce_unsized
   69. 4.69. command_resolved_envs
   70. 4.70. concat_bytes
   71. 4.71. const_alloc_error
   72. 4.72. const_array
   73. 4.73. const_bool
   74. 4.74. const_btree_len
   75. 4.75. const_carrying_mul_add
   76. 4.76. const_cell_traits
   77. 4.77. const_clone
   78. 4.78. const_cmp
   79. 4.79. const_control_flow
   80. 4.80. const_convert
   81. 4.81. const_default
   82. 4.82. const_drop_guard
   83. 4.83. const_drop_in_place
   84. 4.84. const_eval_select
   85. 4.85. const_format_args
   86. 4.86. const_heap
   87. 4.87. const_index
   88. 4.88. const_iter
   89. 4.89. const_manually_drop_take
   90. 4.90. const_never_short_circuit
   91. 4.91. const_nonnull_with_exposed_provenance
   92. 4.92. const_ops
   93. 4.93. const_option_ops
   94. 4.94. const_param_ty_trait
   95. 4.95. const_path_separators
   96. 4.96. const_range
   97. 4.97. const_range_bounds
   98. 4.98. const_raw_ptr_comparison
   99. 4.99. const_ref_cell
   100. 4.100. const_result_trait_fn
   101. 4.101. const_result_unwrap_unchecked
   102. 4.102. const_select_unpredictable
   103. 4.103. const_slice_from_mut_ptr_range
   104. 4.104. const_slice_from_ptr_range
   105. 4.105. const_slice_make_iter
   106. 4.106. const_split_off_first_last
   107. 4.107. const_swap_with_slice
   108. 4.108. const_try_residual
   109. 4.109. const_type_name
   110. 4.110. const_unsigned_bigint_helpers
   111. 4.111. container_error_extra
   112. 4.112. context_ext
   113. 4.113. control_flow_into_value
   114. 4.114. convert_float_to_int
   115. 4.115. copied_into_inner
   116. 4.116. core_float_math
   117. 4.117. core_intrinsics
   118. 4.118. core_intrinsics_fallbacks
   119. 4.119. core_io_borrowed_buf
   120. 4.120. core_private_bignum
   121. 4.121. core_private_diy_float
   122. 4.122. coroutine_trait
   123. 4.123. cow_is_borrowed
   124. 4.124. cstr_bytes
   125. 4.125. cstr_display
   126. 4.126. cstr_internals
   127. 4.127. current_thread_id
   128. 4.128. cursor_split
   129. 4.129. darwin_objc
   130. 4.130. deadline_api
   131. 4.131. debug_closure_helpers
   132. 4.132. dec2flt
   133. 4.133. deque_extend_front
   134. 4.134. deref_pure_trait
   135. 4.135. derive_clone_copy_internals
   136. 4.136. derive_coerce_pointee
   137. 4.137. derive_const
   138. 4.138. derive_eq_internals
   139. 4.139. derive_macro_global_path
   140. 4.140. dir_entry_ext2
   141. 4.141. dirfd
   142. 4.142. dirhandle
   143. 4.143. discriminant_kind
   144. 4.144. disjoint_bitor
   145. 4.145. dispatch_from_dyn
   146. 4.146. downcast_unchecked
   147. 4.147. drain_keep_rest
   148. 4.148. drop_guard
   149. 4.149. duration_constants
   150. 4.150. duration_constructors
   151. 4.151. duration_integer_division
   152. 4.152. duration_millis_float
   153. 4.153. duration_units
   154. 4.154. edition_panic
   155. 4.155. error_generic_member_access
   156. 4.156. error_iter
   157. 4.157. error_reporter
   158. 4.158. error_type_id
   159. 4.159. exact_bitshifts
   160. 4.160. exact_div
   161. 4.161. exact_size_is_empty
   162. 4.162. exclusive_wrapper
   163. 4.163. exit_status_error
   164. 4.164. exitcode_exit_method
   165. 4.165. extend_one
   166. 4.166. extend_one_unchecked
   167. 4.167. f32_from_f16
   168. 4.168. fd
   169. 4.169. file_buffered
   170. 4.170. float_algebraic
   171. 4.171. float_bits_const
   172. 4.172. float_erf
   173. 4.173. float_exact_integer_constants
   174. 4.174. float_gamma
   175. 4.175. float_minimum_maximum
   176. 4.176. flt2dec
   177. 4.177. fmt_arguments_from_str
   178. 4.178. fmt_helpers_for_derive
   179. 4.179. fmt_internals
   180. 4.180. fn_ptr_trait
   181. 4.181. fn_traits
   182. 4.182. forget_unsized
   183. 4.183. format_args_nl
   184. 4.184. formatting_options
   185. 4.185. freeze
   186. 4.186. fs_set_times
   187. 4.187. funnel_shifts
   188. 4.188. future_join
   189. 4.189. gen_future
   190. 4.190. generic_assert_internals
   191. 4.191. generic_atomic
   192. 4.192. get_disjoint_mut_helpers
   193. 4.193. get_mut_unchecked
   194. 4.194. gethostname
   195. 4.195. gpu_intrinsics
   196. 4.196. hash_map_internals
   197. 4.197. hash_map_macro
   198. 4.198. hash_set_entry
   199. 4.199. hasher_prefixfree_extras
   200. 4.200. hashmap_internals
   201. 4.201. hint_must_use
   202. 4.202. hint_prefetch
   203. 4.203. inplace_iteration
   204. 4.204. int_format_into
   205. 4.205. int_from_ascii
   206. 4.206. int_roundings
   207. 4.207. integer_atomics
   208. 4.208. integer_extend_truncate
   209. 4.209. internal_output_capture
   210. 4.210. io_const_error
   211. 4.211. io_const_error_internals
   212. 4.212. io_error_inprogress
   213. 4.213. io_error_more
   214. 4.214. io_error_uncategorized
   215. 4.215. io_slice_as_bytes
   216. 4.216. ip
   217. 4.217. ip_as_octets
   218. 4.218. ip_multicast_reserved
   219. 4.219. is_ascii_octdigit
   220. 4.220. is_loongarch_feature_detected
   221. 4.221. is_riscv_feature_detected
   222. 4.222. iter_advance_by
   223. 4.223. iter_array_chunks
   224. 4.224. iter_collect_into
   225. 4.225. iter_from_coroutine
   226. 4.226. iter_intersperse
   227. 4.227. iter_is_partitioned
   228. 4.228. iter_macro
   229. 4.229. iter_map_windows
   230. 4.230. iter_next_chunk
   231. 4.231. iter_order_by
   232. 4.232. iter_partition_in_place
   233. 4.233. iterator_try_collect
   234. 4.234. iterator_try_reduce
   235. 4.235. junction_point
   236. 4.236. layout_for_ptr
   237. 4.237. lazy_cell_into_inner
   238. 4.238. legacy_receiver_trait
   239. 4.239. liballoc_internals
   240. 4.240. libstd_sys_internals
   241. 4.241. likely_unlikely
   242. 4.242. linked_list_cursors
   243. 4.243. linked_list_remove
   244. 4.244. linked_list_retain
   245. 4.245. linux_pidfd
   246. 4.246. local_key_cell_update
   247. 4.247. local_waker
   248. 4.248. lock_value_accessors
   249. 4.249. log_syntax
   250. 4.250. map_try_insert
   251. 4.251. mapped_lock_guards
   252. 4.252. maybe_dangling
   253. 4.253. maybe_uninit_array_assume_init
   254. 4.254. maybe_uninit_as_bytes
   255. 4.255. maybe_uninit_fill
   256. 4.256. maybe_uninit_uninit_array_transpose
   257. 4.257. mem_conjure_zst
   258. 4.258. mem_copy_fn
   259. 4.259. more_float_constants
   260. 4.260. motor_ext
   261. 4.261. mpmc_channel
   262. 4.262. mpsc_is_disconnected
   263. 4.263. mutex_data_ptr
   264. 4.264. new_range_api_legacy
   265. 4.265. new_range_remainder
   266. 4.266. next_index
   267. 4.267. nonpoison_condvar
   268. 4.268. nonpoison_mutex
   269. 4.269. nonpoison_rwlock
   270. 4.270. nonzero_bitwise
   271. 4.271. nonzero_from_mut
   272. 4.272. nonzero_from_str_radix
   273. 4.273. nonzero_internals
   274. 4.274. nonzero_ops
   275. 4.275. normalize_lexically
   276. 4.276. num_internals
   277. 4.277. numfmt
   278. 4.278. objc_class_variant
   279. 4.279. objc_selector_variant
   280. 4.280. once_cell_get_mut
   281. 4.281. once_cell_try
   282. 4.282. once_cell_try_insert
   283. 4.283. one_sided_range
   284. 4.284. oneshot_channel
   285. 4.285. option_array_transpose
   286. 4.286. option_get_or_try_insert_with
   287. 4.287. option_into_flat_iter
   288. 4.288. option_reduce
   289. 4.289. option_reference_flattening
   290. 4.290. option_zip
   291. 4.291. os_str_slice
   292. 4.292. os_string_truncate
   293. 4.293. panic_abort
   294. 4.294. panic_always_abort
   295. 4.295. panic_backtrace_config
   296. 4.296. panic_can_unwind
   297. 4.297. panic_internals
   298. 4.298. panic_unwind
   299. 4.299. panic_update_hook
   300. 4.300. partial_ord_chaining_methods
   301. 4.301. path_absolute_method
   302. 4.302. path_is_empty
   303. 4.303. path_trailing_sep
   304. 4.304. pattern
   305. 4.305. pattern_type_macro
   306. 4.306. pattern_type_range_trait
   307. 4.307. peer_credentials_unix_socket
   308. 4.308. phantom_variance_markers
   309. 4.309. pin_coerce_unsized_trait
   310. 4.310. pin_derefmut_internals
   311. 4.311. pointer_is_aligned_to
   312. 4.312. pointer_try_cast_aligned
   313. 4.313. portable_simd
   314. 4.314. prelude_future
   315. 4.315. prelude_next
   316. 4.316. print_internals
   317. 4.317. proc_macro_def_site
   318. 4.318. proc_macro_diagnostic
   319. 4.319. proc_macro_expand
   320. 4.320. proc_macro_internals
   321. 4.321. proc_macro_quote
   322. 4.322. proc_macro_span
   323. 4.323. proc_macro_totokens
   324. 4.324. proc_macro_tracked_env
   325. 4.325. proc_macro_tracked_path
   326. 4.326. proc_macro_value
   327. 4.327. process_chroot
   328. 4.328. process_exitcode_internals
   329. 4.329. process_internals
   330. 4.330. process_setsid
   331. 4.331. profiler_runtime_lib
   332. 4.332. profiling_marker_api
   333. 4.333. ptr_alignment_type
   334. 4.334. ptr_as_uninit
   335. 4.335. ptr_cast_array
   336. 4.336. ptr_cast_slice
   337. 4.337. ptr_internals
   338. 4.338. ptr_mask
   339. 4.339. ptr_metadata
   340. 4.340. pub_crate_should_not_need_unstable_attr
   341. 4.341. random
   342. 4.342. range_bounds_is_empty
   343. 4.343. range_into_bounds
   344. 4.344. raw_os_error_ty
   345. 4.345. raw_slice_split
   346. 4.346. raw_vec_internals
   347. 4.347. read_array
   348. 4.348. read_buf
   349. 4.349. read_buf_at
   350. 4.350. reentrant_lock
   351. 4.351. reentrant_lock_data_ptr
   352. 4.352. refcell_try_map
   353. 4.353. restricted_std
   354. 4.354. result_option_map_or_default
   355. 4.355. rev_into_inner
   356. 4.356. rt
   357. 4.357. rwlock_data_ptr
   358. 4.358. sealed
   359. 4.359. seek_io_take_position
   360. 4.360. seek_stream_len
   361. 4.361. set_permissions_nofollow
   362. 4.362. set_ptr_value
   363. 4.363. setgroups
   364. 4.364. sgx_platform
   365. 4.365. signed_bigint_helpers
   366. 4.366. sized_type_properties
   367. 4.367. slice_concat_ext
   368. 4.368. slice_concat_trait
   369. 4.369. slice_from_ptr_range
   370. 4.370. slice_index_methods
   371. 4.371. slice_internals
   372. 4.372. slice_iter_mut_as_mut_slice
   373. 4.373. slice_partial_sort_unstable
   374. 4.374. slice_partition_dedup
   375. 4.375. slice_pattern
   376. 4.376. slice_ptr_get
   377. 4.377. slice_range
   378. 4.378. slice_shift
   379. 4.379. slice_split_once
   380. 4.380. slice_swap_unchecked
   381. 4.381. sliceindex_wrappers
   382. 4.382. smart_pointer_try_map
   383. 4.383. solid_ext
   384. 4.384. sort_floats
   385. 4.385. split_array
   386. 4.386. split_as_slice
   387. 4.387. std_internals
   388. 4.388. stdarch_aarch64_feature_detection
   389. 4.389. stdarch_arm_feature_detection
   390. 4.390. stdarch_internal
   391. 4.391. stdarch_loongarch_feature_detection
   392. 4.392. stdarch_mips_feature_detection
   393. 4.393. stdarch_powerpc_feature_detection
   394. 4.394. stdarch_riscv_feature_detection
   395. 4.395. stdio_fd_consts
   396. 4.396. stdio_makes_pipe
   397. 4.397. stdio_swap
   398. 4.398. step_trait
   399. 4.399. str_as_str
   400. 4.400. str_from_raw_parts
   401. 4.401. str_from_utf16_endian
   402. 4.402. str_internals
   403. 4.403. str_lines_remainder
   404. 4.404. str_split_inclusive_remainder
   405. 4.405. str_split_remainder
   406. 4.406. str_split_whitespace_remainder
   407. 4.407. string_from_utf8_lossy_owned
   408. 4.408. string_into_chars
   409. 4.409. string_remove_matches
   410. 4.410. string_replace_in_place
   411. 4.411. strip_circumfix
   412. 4.412. substr_range
   413. 4.413. sync_nonpoison
   414. 4.414. sync_poison_mod
   415. 4.415. sync_unsafe_cell
   416. 4.416. tcp_deferaccept
   417. 4.417. tcp_linger
   418. 4.418. tcplistener_into_incoming
   419. 4.419. temporary_niche_types
   420. 4.420. test
   421. 4.421. thin_box
   422. 4.422. thread_id_value
   423. 4.423. thread_local_internals
   424. 4.424. thread_raw
   425. 4.425. thread_sleep_until
   426. 4.426. thread_spawn_hook
   427. 4.427. time_saturating_systemtime
   428. 4.428. time_systemtime_limits
   429. 4.429. titlecase
   430. 4.430. trace_macros
   431. 4.431. transmutability
   432. 4.432. transmute_neo
   433. 4.433. transmute_prefix
   434. 4.434. trim_prefix_suffix
   435. 4.435. trivial_clone
   436. 4.436. trusted_fused
   437. 4.437. trusted_len
   438. 4.438. trusted_len_next_unchecked
   439. 4.439. trusted_random_access
   440. 4.440. trusted_step
   441. 4.441. try_as_dyn
   442. 4.442. try_find
   443. 4.443. try_from_int_error_kind
   444. 4.444. try_reserve_kind
   445. 4.445. try_trait_v2
   446. 4.446. try_trait_v2_residual
   447. 4.447. try_trait_v2_yeet
   448. 4.448. try_with_capacity
   449. 4.449. tuple_trait
   450. 4.450. type_ascription
   451. 4.451. type_info
   452. 4.452. ub_checks
   453. 4.453. uefi_std
   454. 4.454. uint_carryless_mul
   455. 4.455. uint_gather_scatter_bits
   456. 4.456. unicode_internals
   457. 4.457. unique_rc_arc
   458. 4.458. unix_file_vectored_at
   459. 4.459. unix_mkfifo
   460. 4.460. unix_send_signal
   461. 4.461. unix_set_mark
   462. 4.462. unix_socket_ancillary_data
   463. 4.463. unix_socket_exclbind
   464. 4.464. unix_socket_peek
   465. 4.465. unsafe_cell_access
   466. 4.466. unsafe_pinned
   467. 4.467. unsafe_unpin
   468. 4.468. unsize
   469. 4.469. unwrap_infallible
   470. 4.470. update_panic_count
   471. 4.471. utf16_extra
   472. 4.472. variant_count
   473. 4.473. vec_deque_extract_if
   474. 4.474. vec_deque_iter_as_slices
   475. 4.475. vec_deque_truncate_front
   476. 4.476. vec_fallible_shrink
   477. 4.477. vec_from_fn
   478. 4.478. vec_into_chunks
   479. 4.479. vec_peek_mut
   480. 4.480. vec_push_within_capacity
   481. 4.481. vec_recycle
   482. 4.482. vec_split_at_spare
   483. 4.483. vec_try_remove
   484. 4.484. waker_fn
   485. 4.485. waker_from_fn_ptr
   486. 4.486. wasi_ext
   487. 4.487. widening_mul
   488. 4.488. windows_by_handle
   489. 4.489. windows_c
   490. 4.490. windows_change_time
   491. 4.491. windows_freeze_file_times
   492. 4.492. windows_handle
   493. 4.493. windows_net
   494. 4.494. windows_process_exit_code_from
   495. 4.495. windows_process_extensions_async_pipes
   496. 4.496. windows_process_extensions_force_quotes
   497. 4.497. windows_process_extensions_inherit_handles
   498. 4.498. windows_process_extensions_main_thread_handle
   499. 4.499. windows_process_extensions_raw_attribute
   500. 4.500. windows_process_extensions_show_window
   501. 4.501. windows_process_extensions_startupinfo
   502. 4.502. windows_stdio
   503. 4.503. windows_unix_domain_sockets
   504. 4.504. wrapping_int_impl
   505. 4.505. wrapping_next_power_of_two
   506. 4.506. write_all_vectored
   507. 4.507. wtf8_internals
   508. 4.508. yeet_desugar_details