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. allow_partial_mitigations
   3. 2.3. always_encode_mir
   4. 2.4. annotate_moves
   5. 2.5. assert_incr_state
   6. 2.6. assume_incomplete_release
   7. 2.7. assumptions_on_binders
   8. 2.8. autodiff
   9. 2.9. autodiff_post_passes
   10. 2.10. binary_dep_depinfo
   11. 2.11. box_noalias
   12. 2.12. branch_protection
   13. 2.13. build_sdylib_interface
   14. 2.14. cache_proc_macros
   15. 2.15. cf_protection
   16. 2.16. check_cfg_all_expected
   17. 2.17. checksum_hash_algorithm
   18. 2.18. codegen_backend
   19. 2.19. codegen_emit_retag
   20. 2.20. codegen_options
   21. 2.21. codegen_source_order
   22. 2.22. contract_checks
   23. 2.23. control_flow_guard
   24. 2.24. coverage_options
   25. 2.25. crate_attr
   26. 2.26. cross_crate_inline_threshold
   27. 2.27. debug_info_type_line_numbers
   28. 2.28. debug_info_type_line_numbers
   29. 2.29. debuginfo_compression
   30. 2.30. debuginfo_for_profiling
   31. 2.31. debuginfo_for_profiling
   32. 2.32. deduplicate_diagnostics
   33. 2.33. default_visibility
   34. 2.34. deny_partial_mitigations
   35. 2.35. dep_info_omit_d_target
   36. 2.36. direct_access_external_data
   37. 2.37. disable_fast_paths
   38. 2.38. disable_incr_comp_backend_caching
   39. 2.39. dual_proc_macros
   40. 2.40. dump_dep_graph
   41. 2.41. dump_mir
   42. 2.42. dump_mir_dataflow
   43. 2.43. dump_mir_dir
   44. 2.44. dump_mir_exclude_alloc_bytes
   45. 2.45. dump_mir_exclude_pass_number
   46. 2.46. dump_mir_graphviz
   47. 2.47. dump_mono_stats
   48. 2.48. dump_mono_stats_format
   49. 2.49. dwarf_version
   50. 2.50. dylib_lto
   51. 2.51. eagerly_emit_delayed_bugs
   52. 2.52. ehcont_guard
   53. 2.53. embed_metadata
   54. 2.54. embed_source
   55. 2.55. emit_stack_sizes
   56. 2.56. enforce_type_length_limit
   57. 2.57. env_set
   58. 2.58. experimental_default_bounds
   59. 2.59. export_executable_symbols
   60. 2.60. extern_options
   61. 2.61. external_clangrt
   62. 2.62. extra_const_ub_checks
   63. 2.63. fewer_names
   64. 2.64. fixed_x18
   65. 2.65. flatten_format_args
   66. 2.66. fmt_debug
   67. 2.67. force_intrinsic_fallback
   68. 2.68. force_unstable_if_unmarked
   69. 2.69. function_return
   70. 2.70. function_sections
   71. 2.71. future_incompat_test
   72. 2.72. graphviz_dark_mode
   73. 2.73. graphviz_font
   74. 2.74. has_thread_local
   75. 2.75. help
   76. 2.76. higher_ranked_assumptions
   77. 2.77. hint_mostly_unused
   78. 2.78. hint_msrv
   79. 2.79. human_readable_cgu_names
   80. 2.80. identify_regions
   81. 2.81. ignore_directory_in_diagnostics_source_blocks
   82. 2.82. incremental_ignore_spans
   83. 2.83. incremental_info
   84. 2.84. incremental_verify_ich
   85. 2.85. indirect_branch_cs_prefix
   86. 2.86. inline_llvm
   87. 2.87. inline_mir
   88. 2.88. inline_mir_forwarder_threshold
   89. 2.89. inline_mir_hint_threshold
   90. 2.90. inline_mir_preserve_debug
   91. 2.91. inline_mir_threshold
   92. 2.92. input_stats
   93. 2.93. instrument_mcount
   94. 2.94. instrument_xray
   95. 2.95. internal_testing_features
   96. 2.96. large_data_threshold
   97. 2.97. layout_seed
   98. 2.98. link_directives
   99. 2.99. link_native_libraries
   100. 2.100. link_only
   101. 2.101. lint_llvm_ir
   102. 2.102. lint_mir
   103. 2.103. llvm_module_flag
   104. 2.104. llvm_plugins
   105. 2.105. llvm_time_trace
   106. 2.106. llvm_writable
   107. 2.107. location_detail
   108. 2.108. ls
   109. 2.109. macro_backtrace
   110. 2.110. macro_stats
   111. 2.111. maximal_hir_to_mir_coverage
   112. 2.112. merge_functions
   113. 2.113. meta_stats
   114. 2.114. metrics_dir
   115. 2.115. min_function_alignment
   116. 2.116. min_recursion_limit
   117. 2.117. mir_enable_passes
   118. 2.118. mir_include_spans
   119. 2.119. mir_opt_bisect_limit
   120. 2.120. mir_opt_level
   121. 2.121. mir_preserve_ub
   122. 2.122. mir_strip_debuginfo
   123. 2.123. move_size_limit
   124. 2.124. mutable_noalias
   125. 2.125. namespaced_crates
   126. 2.126. next_solver
   127. 2.127. nll_facts
   128. 2.128. nll_facts_dir
   129. 2.129. no_analysis
   130. 2.130. no_codegen
   131. 2.131. no_generate_arange_section
   132. 2.132. no_implied_bounds_compat
   133. 2.133. no_leak_check
   134. 2.134. no_link
   135. 2.135. no_parallel_backend
   136. 2.136. no_parallel_llvm
   137. 2.137. no_profiler_runtime
   138. 2.138. no_steal_thir
   139. 2.139. no_trait_vptr
   140. 2.140. no_unique_section_names
   141. 2.141. normalize_docs
   142. 2.142. offload
   143. 2.143. on_broken_pipe
   144. 2.144. osx_rpath_install_name
   145. 2.145. packed_bundled_libs
   146. 2.146. packed_stack
   147. 2.147. panic_abort_tests
   148. 2.148. panic_in_drop
   149. 2.149. parse_crate_root_only
   150. 2.150. patchable_function_entry
   151. 2.151. plt
   152. 2.152. polonius
   153. 2.153. pre_link_arg
   154. 2.154. pre_link_args
   155. 2.155. precise_enum_drop_elaboration
   156. 2.156. print_check_cfg
   157. 2.157. print_codegen_stats
   158. 2.158. print_codegen_stats_json
   159. 2.159. print_crate_root_lint_levels
   160. 2.160. print_llvm_passes
   161. 2.161. print_mono_items
   162. 2.162. print_supported_crate_types
   163. 2.163. print_type_sizes
   164. 2.164. proc_macro_backtrace
   165. 2.165. proc_macro_execution_strategy
   166. 2.166. profile_closures
   167. 2.167. profile_sample_use
   168. 2.168. profile_sample_use
   169. 2.169. profiler_runtime
   170. 2.170. ptrauth_elf_got
   171. 2.171. query_dep_graph
   172. 2.172. randomize_layout
   173. 2.173. reg_struct_return
   174. 2.174. regparm
   175. 2.175. relax_elf_relocations
   176. 2.176. remap_cwd_prefix
   177. 2.177. remark_dir
   178. 2.178. renormalize_rigid_aliases
   179. 2.179. report_time
   180. 2.180. retpoline
   181. 2.181. retpoline_external_thunk
   182. 2.182. sanitizer
   183. 2.183. sanitizer_cfi_canonical_jump_tables
   184. 2.184. sanitizer_cfi_generalize_pointers
   185. 2.185. sanitizer_cfi_normalize_integers
   186. 2.186. sanitizer_dataflow_abilist
   187. 2.187. sanitizer_kcfi_arity
   188. 2.188. sanitizer_memory_track_origins
   189. 2.189. sanitizer_recover
   190. 2.190. saturating_float_casts
   191. 2.191. self_profile
   192. 2.192. self_profile_counter
   193. 2.193. self_profile_events
   194. 2.194. share_generics
   195. 2.195. shell_argfiles
   196. 2.196. simulate_remapped_rust_src_base
   197. 2.197. small_data_threshold
   198. 2.198. span_debug
   199. 2.199. span_free_formats
   200. 2.200. split_dwarf_inlining
   201. 2.201. split_dwarf_kind
   202. 2.202. split_dwarf_out_dir
   203. 2.203. split_lto_unit
   204. 2.204. src_hash_algorithm
   205. 2.205. stack_protector
   206. 2.206. staticlib_allow_rdylib_deps
   207. 2.207. staticlib_hide_internal_symbols
   208. 2.208. staticlib_prefer_dynamic
   209. 2.209. staticlib_rename_internal_symbols
   210. 2.210. strict_init_checks
   211. 2.211. teach
   212. 2.212. temps_dir
   213. 2.213. terminal_urls
   214. 2.214. thinlto
   215. 2.215. threads
   216. 2.216. time_llvm_passes
   217. 2.217. time_passes
   218. 2.218. time_passes_format
   219. 2.219. tiny_const_eval_limit
   220. 2.220. tls_model
   221. 2.221. trace_macros
   222. 2.222. track_diagnostics
   223. 2.223. translate_remapped_path_to_local_path
   224. 2.224. trap_unreachable
   225. 2.225. treat_err_as_bug
   226. 2.226. trim_diagnostic_paths
   227. 2.227. tune_cpu
   228. 2.228. typing_mode_post_typeck_until_borrowck
   229. 2.229. ub_checks
   230. 2.230. ui_testing
   231. 2.231. uninit_const_chunk_threshold
   232. 2.232. unleash_the_miri_inside_of_you
   233. 2.233. unpretty
   234. 2.234. unsound_mir_opts
   235. 2.235. unstable_options
   236. 2.236. use_ctors_section
   237. 2.237. use_sync_unwind
   238. 2.238. validate_mir
   239. 2.239. verbose_asm
   240. 2.240. verbose_internals
   241. 2.241. verify_llvm_ir
   242. 2.242. virtual_function_elimination
   243. 2.243. wasi_exec_model
   244. 2.244. wasm_c_abi
   245. 2.245. write_long_types_to_disk
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_swift
   11. 3.11. abi_unadjusted
   12. 3.12. abi_vectorcall
   13. 3.13. abi_x86_interrupt
   14. 3.14. adt_const_params
   15. 3.15. alloc_error_handler
   16. 3.16. allocator_internals
   17. 3.17. allow_internal_unsafe
   18. 3.18. allow_internal_unstable
   19. 3.19. anonymous_lifetime_in_impl_trait
   20. 3.20. apx_target_feature
   21. 3.21. arbitrary_self_types
   22. 3.22. arbitrary_self_types_pointers
   23. 3.23. arm_target_feature
   24. 3.24. asm_experimental_arch
   25. 3.25. asm_experimental_reg
   26. 3.26. asm_goto_with_outputs
   27. 3.27. asm_unwind
   28. 3.28. associated_type_defaults
   29. 3.29. async_drop
   30. 3.30. async_fn_in_dyn_trait
   31. 3.31. async_fn_track_caller
   32. 3.32. async_for_loop
   33. 3.33. async_trait_bounds
   34. 3.34. auto_traits
   35. 3.35. avr_target_feature
   36. 3.36. avx10_target_feature
   37. 3.37. box_patterns
   38. 3.38. bpf_target_feature
   39. 3.39. builtin_syntax
   40. 3.40. c_variadic
   41. 3.41. c_variadic_experimental_arch
   42. 3.42. c_variadic_naked_functions
   43. 3.43. cfg_contract_checks
   44. 3.44. cfg_overflow_checks
   45. 3.45. cfg_relocation_model
   46. 3.46. cfg_sanitize
   47. 3.47. cfg_sanitizer_cfi
   48. 3.48. cfg_target_compact
   49. 3.49. cfg_target_has_atomic
   50. 3.50. cfg_target_has_reliable_f16_f128
   51. 3.51. cfg_target_has_threads
   52. 3.52. cfg_target_object_format
   53. 3.53. cfg_target_thread_local
   54. 3.54. cfg_ub_checks
   55. 3.55. cfg_version
   56. 3.56. cfi_encoding
   57. 3.57. clflushopt_target_feature
   58. 3.58. closure_lifetime_binder
   59. 3.59. closure_track_caller
   60. 3.60. cmse_nonsecure_entry
   61. 3.61. compiler_builtins
   62. 3.62. const_async_blocks
   63. 3.63. const_block_items
   64. 3.64. const_c_variadic
   65. 3.65. const_closures
   66. 3.66. const_destruct
   67. 3.67. const_for
   68. 3.68. const_param_ty_unchecked
   69. 3.69. const_precise_live_drops
   70. 3.70. const_trait_impl
   71. 3.71. const_try
   72. 3.72. contracts
   73. 3.73. contracts_internals
   74. 3.74. coroutine_clone
   75. 3.75. coroutines
   76. 3.76. coverage_attribute
   77. 3.77. csky_target_feature
   78. 3.78. custom_inner_attributes
   79. 3.79. custom_mir
   80. 3.80. custom_test_frameworks
   81. 3.81. decl_macro
   82. 3.82. default_field_values
   83. 3.83. deprecated_suggestion
   84. 3.84. deref_patterns
   85. 3.85. derive_from
   86. 3.86. diagnostic_on_const
   87. 3.87. diagnostic_on_move
   88. 3.88. diagnostic_on_type_error
   89. 3.89. diagnostic_on_unknown
   90. 3.90. diagnostic_on_unmatched_args
   91. 3.91. doc_cfg
   92. 3.92. doc_masked
   93. 3.93. doc_notable_trait
   94. 3.94. dropck_eyepatch
   95. 3.95. effective_target_features
   96. 3.96. eii_internals
   97. 3.97. ergonomic_clones
   98. 3.98. ermsb_target_feature
   99. 3.99. exhaustive_patterns
   100. 3.100. explicit_extern_abis
   101. 3.101. explicit_tail_calls
   102. 3.102. export_stable
   103. 3.103. extern_item_impls
   104. 3.104. extern_types
   105. 3.105. f128
   106. 3.106. f16
   107. 3.107. ffi_const
   108. 3.108. ffi_pure
   109. 3.109. field_projections
   110. 3.110. field_representing_type_raw
   111. 3.111. final_associated_functions
   112. 3.112. fma4_target_feature
   113. 3.113. fmt_debug
   114. 3.114. fn_align
   115. 3.115. fn_delegation
   116. 3.116. freeze_impls
   117. 3.117. frontmatter
   118. 3.118. fundamental
   119. 3.119. gen_blocks
   120. 3.120. generic_assert
   121. 3.121. generic_const_args
   122. 3.122. generic_const_exprs
   123. 3.123. generic_const_items
   124. 3.124. generic_const_parameter_types
   125. 3.125. generic_pattern_types
   126. 3.126. global_registration
   127. 3.127. guard_patterns
   128. 3.128. half_open_range_patterns_in_slices
   129. 3.129. hexagon_target_feature
   130. 3.130. impl_restriction
   131. 3.131. impl_trait_in_assoc_type
   132. 3.132. impl_trait_in_bindings
   133. 3.133. impl_trait_in_fn_trait_return
   134. 3.134. import_trait_associated_functions
   135. 3.135. inherent_associated_types
   136. 3.136. instrument_fn
   137. 3.137. intra_doc_pointers
   138. 3.138. intrinsics
   139. 3.139. lahfsahf_target_feature
   140. 3.140. lang_items
   141. 3.141. large_assignments
   142. 3.142. lazy_type_alias
   143. 3.143. link_arg_attribute
   144. 3.144. link_cfg
   145. 3.145. link_llvm_intrinsics
   146. 3.146. linkage
   147. 3.147. loongarch_target_feature
   148. 3.148. loop_hints
   149. 3.149. loop_match
   150. 3.150. m68k_target_feature
   151. 3.151. macro_attr
   152. 3.152. macro_derive
   153. 3.153. macro_guard_matcher
   154. 3.154. macro_metavar_expr
   155. 3.155. macro_metavar_expr_concat
   156. 3.156. marker_trait_attr
   157. 3.157. mgca_type_const_syntax
   158. 3.158. min_adt_const_params
   159. 3.159. min_generic_const_args
   160. 3.160. min_specialization
   161. 3.161. mips_target_feature
   162. 3.162. more_maybe_bounds
   163. 3.163. more_qualified_paths
   164. 3.164. move_expr
   165. 3.165. movrs_target_feature
   166. 3.166. multiple_supertrait_upcastable
   167. 3.167. must_not_suspend
   168. 3.168. mut_ref
   169. 3.169. mut_restriction
   170. 3.170. naked_functions_rustic_abi
   171. 3.171. naked_functions_target_feature
   172. 3.172. native_link_modifiers_as_needed
   173. 3.173. needs_panic_runtime
   174. 3.174. negative_bounds
   175. 3.175. negative_impls
   176. 3.176. never_patterns
   177. 3.177. never_type
   178. 3.178. new_range
   179. 3.179. no_core
   180. 3.180. non_exhaustive_omitted_patterns_lint
   181. 3.181. non_lifetime_binders
   182. 3.182. nvptx_target_feature
   183. 3.183. offset_of_enum
   184. 3.184. offset_of_slice
   185. 3.185. optimize_attribute
   186. 3.186. panic_runtime
   187. 3.187. patchable_function_entry
   188. 3.188. pattern_complexity_limit
   189. 3.189. pattern_types
   190. 3.190. pin_ergonomics
   191. 3.191. postfix_match
   192. 3.192. powerpc_target_feature
   193. 3.193. prelude_import
   194. 3.194. prfchw_target_feature
   195. 3.195. proc_macro_hygiene
   196. 3.196. profiler_runtime
   197. 3.197. raw_dylib_elf
   198. 3.198. reborrow
   199. 3.199. ref_pat_eat_one_layer_2024
   200. 3.200. ref_pat_eat_one_layer_2024_structural
   201. 3.201. register_tool
   202. 3.202. repr_simd
   203. 3.203. return_type_notation
   204. 3.204. riscv_target_feature
   205. 3.205. rtm_target_feature
   206. 3.206. rust_cold_cc
   207. 3.207. rust_preserve_none_cc
   208. 3.208. rust_tail_cc
   209. 3.209. rustc_attrs
   210. 3.210. rustc_private
   211. 3.211. rustdoc_internals
   212. 3.212. rustdoc_missing_doc_code_examples
   213. 3.213. s390x_target_feature
   214. 3.214. sanitize
   215. 3.215. simd_ffi
   216. 3.216. sized_hierarchy
   217. 3.217. sparc_target_feature
   218. 3.218. specialization
   219. 3.219. splat
   220. 3.220. staged_api
   221. 3.221. static_align
   222. 3.222. stmt_expr_attributes
   223. 3.223. strict_provenance_lints
   224. 3.224. structural_match
   225. 3.225. super_let
   226. 3.226. supertrait_item_shadowing
   227. 3.227. test_incomplete_feature
   228. 3.228. test_unstable_lint
   229. 3.229. thread_local
   230. 3.230. trait_alias
   231. 3.231. transmute_generic_consts
   232. 3.232. transparent_unions
   233. 3.233. trivial_bounds
   234. 3.234. try_blocks
   235. 3.235. try_blocks_heterogeneous
   236. 3.236. type_alias_impl_trait
   237. 3.237. type_changing_struct_update
   238. 3.238. unboxed_closures
   239. 3.239. unnamed_enum_variants
   240. 3.240. unqualified_local_imports
   241. 3.241. unsafe_binders
   242. 3.242. unsafe_fields
   243. 3.243. unsized_const_params
   244. 3.244. unsized_fn_params
   245. 3.245. used_with_arg
   246. 3.246. view_types
   247. 3.247. wasm_target_feature
   248. 3.248. where_clause_attrs
   249. 3.249. with_negative_coherence
   250. 3.250. x86_amx_intrinsics
   251. 3.251. x87_target_feature
   252. 3.252. xop_target_feature
   253. 3.253. xtensa_target_feature
   254. 3.254. yeet_expr
   255. 3.255. 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_io
   9. 4.9. alloc_slice_into_array
   10. 4.10. allocator_api
   11. 4.11. alloctests
   12. 4.12. arc_is_unique
   13. 4.13. array_into_iter_constructors
   14. 4.14. array_ptr_get
   15. 4.15. array_try_from_fn
   16. 4.16. array_try_map
   17. 4.17. ascii_char
   18. 4.18. ascii_char_variants
   19. 4.19. async_fn_traits
   20. 4.20. async_gen_internals
   21. 4.21. async_iter_from_iter
   22. 4.22. async_iterator
   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. borrowed_buf_init
   35. 4.35. bound_as_ref
   36. 4.36. bound_copied
   37. 4.37. box_as_non_null
   38. 4.38. box_into_boxed_slice
   39. 4.39. box_into_inner
   40. 4.40. box_take
   41. 4.41. box_vec_non_null
   42. 4.42. breakpoint
   43. 4.43. bstr
   44. 4.44. bstr_internals
   45. 4.45. btree_cursors
   46. 4.46. btree_merge
   47. 4.47. btree_set_entry
   48. 4.48. btreemap_alloc
   49. 4.49. buf_read_has_data_left
   50. 4.50. bufreader_peek
   51. 4.51. c_size_t
   52. 4.52. c_void_variant
   53. 4.53. can_vector
   54. 4.54. case_ignorable
   55. 4.55. casefold
   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_unassigned_private_use
   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
   120. 4.120. core_io_borrowed_buf
   121. 4.121. core_io_internals
   122. 4.122. core_private_bignum
   123. 4.123. core_private_diy_float
   124. 4.124. coroutine_trait
   125. 4.125. cow_is_borrowed
   126. 4.126. cstr_bytes
   127. 4.127. cstr_display
   128. 4.128. cstr_internals
   129. 4.129. current_thread_id
   130. 4.130. cursor_split
   131. 4.131. darwin_objc
   132. 4.132. deadline_api
   133. 4.133. debug_closure_helpers
   134. 4.134. dec2flt
   135. 4.135. deque_extend_front
   136. 4.136. deref_pure_trait
   137. 4.137. derive_clone_copy_internals
   138. 4.138. derive_coerce_pointee
   139. 4.139. derive_const
   140. 4.140. derive_eq_internals
   141. 4.141. derive_macro_global_path
   142. 4.142. dir_entry_ext2
   143. 4.143. dirfd
   144. 4.144. dirhandle
   145. 4.145. discriminant_kind
   146. 4.146. disjoint_bitor
   147. 4.147. dispatch_from_dyn
   148. 4.148. downcast_unchecked
   149. 4.149. drain_keep_rest
   150. 4.150. drop_guard
   151. 4.151. duration_constants
   152. 4.152. duration_constructors
   153. 4.153. duration_integer_division
   154. 4.154. duration_millis_float
   155. 4.155. duration_units
   156. 4.156. edition_panic
   157. 4.157. error_generic_member_access
   158. 4.158. error_iter
   159. 4.159. error_reporter
   160. 4.160. error_type_id
   161. 4.161. exact_bitshifts
   162. 4.162. exact_div
   163. 4.163. exact_size_is_empty
   164. 4.164. exclusive_wrapper
   165. 4.165. exit_status_error
   166. 4.166. exitcode_exit_method
   167. 4.167. extend_one
   168. 4.168. extend_one_unchecked
   169. 4.169. f32_from_f16
   170. 4.170. fd
   171. 4.171. file_buffered
   172. 4.172. float_bits_const
   173. 4.173. float_erf
   174. 4.174. float_exact_integer_constants
   175. 4.175. float_gamma
   176. 4.176. float_masks
   177. 4.177. float_minimum_maximum
   178. 4.178. flt2dec
   179. 4.179. fmt_arguments_from_str
   180. 4.180. fmt_helpers_for_derive
   181. 4.181. fmt_internals
   182. 4.182. fn_ptr_trait
   183. 4.183. fn_traits
   184. 4.184. forget_unsized
   185. 4.185. format_args_nl
   186. 4.186. formatting_options
   187. 4.187. freeze
   188. 4.188. fs_set_times
   189. 4.189. funnel_shifts
   190. 4.190. future_join
   191. 4.191. gen_future
   192. 4.192. generic_assert_internals
   193. 4.193. generic_atomic
   194. 4.194. get_disjoint_mut_helpers
   195. 4.195. get_mut_unchecked
   196. 4.196. gethostname
   197. 4.197. gpu_intrinsics
   198. 4.198. gpu_launch_sized_workgroup_mem
   199. 4.199. gpu_offload
   200. 4.200. hash_map_internals
   201. 4.201. hash_map_macro
   202. 4.202. hash_set_entry
   203. 4.203. hasher_prefixfree_extras
   204. 4.204. hashmap_internals
   205. 4.205. hint_must_use
   206. 4.206. hint_prefetch
   207. 4.207. inplace_iteration
   208. 4.208. int_from_ascii
   209. 4.209. int_roundings
   210. 4.210. integer_atomics
   211. 4.211. integer_cast_extras
   212. 4.212. integer_casts
   213. 4.213. integer_widen_truncate
   214. 4.214. internal_output_capture
   215. 4.215. io_const_error
   216. 4.216. io_const_error_internals
   217. 4.217. io_error_inprogress
   218. 4.218. io_error_more
   219. 4.219. io_error_too_many_open_files
   220. 4.220. io_error_uncategorized
   221. 4.221. io_slice_as_bytes
   222. 4.222. ip
   223. 4.223. ip_as_octets
   224. 4.224. ip_multicast_reserved
   225. 4.225. is_ascii_octdigit
   226. 4.226. is_loongarch_feature_detected
   227. 4.227. is_riscv_feature_detected
   228. 4.228. iter_advance_by
   229. 4.229. iter_array_chunks
   230. 4.230. iter_collect_into
   231. 4.231. iter_from_coroutine
   232. 4.232. iter_intersperse
   233. 4.233. iter_is_partitioned
   234. 4.234. iter_macro
   235. 4.235. iter_map_windows
   236. 4.236. iter_next_chunk
   237. 4.237. iter_order_by
   238. 4.238. iter_partition_in_place
   239. 4.239. iterator_try_collect
   240. 4.240. iterator_try_reduce
   241. 4.241. junction_point
   242. 4.242. layout_for_ptr
   243. 4.243. lazy_cell_into_inner
   244. 4.244. legacy_receiver_trait
   245. 4.245. liballoc_internals
   246. 4.246. libstd_sys_internals
   247. 4.247. likely_unlikely
   248. 4.248. linked_list_cursors
   249. 4.249. linked_list_remove
   250. 4.250. linked_list_retain
   251. 4.251. linux_pidfd
   252. 4.252. local_waker
   253. 4.253. lock_value_accessors
   254. 4.254. log_syntax
   255. 4.255. map_try_insert
   256. 4.256. mapped_lock_guards
   257. 4.257. maybe_dangling
   258. 4.258. maybe_uninit_array_assume_init
   259. 4.259. maybe_uninit_as_bytes
   260. 4.260. maybe_uninit_fill
   261. 4.261. maybe_uninit_uninit_array_transpose
   262. 4.262. mem_conjure_zst
   263. 4.263. mem_copy_fn
   264. 4.264. more_float_constants
   265. 4.265. motor_ext
   266. 4.266. mpmc_channel
   267. 4.267. mpsc_is_disconnected
   268. 4.268. mutex_data_ptr
   269. 4.269. new_range_remainder
   270. 4.270. next_index
   271. 4.271. nonpoison_condvar
   272. 4.272. nonpoison_mutex
   273. 4.273. nonpoison_rwlock
   274. 4.274. nonzero_bitwise
   275. 4.275. nonzero_from_mut
   276. 4.276. nonzero_internals
   277. 4.277. nonzero_ops
   278. 4.278. normalize_lexically
   279. 4.279. num_internals
   280. 4.280. numfmt
   281. 4.281. objc_class_variant
   282. 4.282. objc_selector_variant
   283. 4.283. once_cell_get_mut
   284. 4.284. once_cell_try
   285. 4.285. once_cell_try_insert
   286. 4.286. one_sided_range
   287. 4.287. oneshot_channel
   288. 4.288. option_array_transpose
   289. 4.289. option_get_or_try_insert_with
   290. 4.290. option_into_flat_iter
   291. 4.291. option_reduce
   292. 4.292. option_reference_flattening
   293. 4.293. option_zip
   294. 4.294. os_str_slice
   295. 4.295. os_str_split_at
   296. 4.296. os_string_truncate
   297. 4.297. panic_abort
   298. 4.298. panic_always_abort
   299. 4.299. panic_backtrace_config
   300. 4.300. panic_can_unwind
   301. 4.301. panic_internals
   302. 4.302. panic_unwind
   303. 4.303. panic_update_hook
   304. 4.304. partial_ord_chaining_methods
   305. 4.305. path_absolute_method
   306. 4.306. path_trailing_sep
   307. 4.307. pattern
   308. 4.308. pattern_type_macro
   309. 4.309. pattern_type_range_trait
   310. 4.310. peer_credentials_unix_socket
   311. 4.311. phantom_variance_markers
   312. 4.312. pin_coerce_unsized_trait
   313. 4.313. pin_derefmut_internals
   314. 4.314. pin_macro_internals
   315. 4.315. pointer_is_aligned_to
   316. 4.316. pointer_try_cast_aligned
   317. 4.317. portable_simd
   318. 4.318. prelude_future
   319. 4.319. prelude_next
   320. 4.320. print_internals
   321. 4.321. proc_macro_def_site
   322. 4.322. proc_macro_diagnostic
   323. 4.323. proc_macro_expand
   324. 4.324. proc_macro_internals
   325. 4.325. proc_macro_quote
   326. 4.326. proc_macro_span
   327. 4.327. proc_macro_totokens
   328. 4.328. proc_macro_tracked_env
   329. 4.329. proc_macro_tracked_path
   330. 4.330. proc_macro_value
   331. 4.331. process_chroot
   332. 4.332. process_exitcode_internals
   333. 4.333. process_internals
   334. 4.334. process_setsid
   335. 4.335. profiler_runtime_lib
   336. 4.336. profiling_marker_api
   337. 4.337. ptr_alignment_type
   338. 4.338. ptr_as_uninit
   339. 4.339. ptr_cast_array
   340. 4.340. ptr_cast_slice
   341. 4.341. ptr_internals
   342. 4.342. ptr_mask
   343. 4.343. ptr_metadata
   344. 4.344. pub_crate_should_not_need_unstable_attr
   345. 4.345. random
   346. 4.346. range_bounds_is_empty
   347. 4.347. range_into_bounds
   348. 4.348. raw_os_error_ty
   349. 4.349. raw_slice_split
   350. 4.350. raw_vec_internals
   351. 4.351. read_array
   352. 4.352. read_buf
   353. 4.353. read_buf_at
   354. 4.354. read_le
   355. 4.355. read_le_be_internals
   356. 4.356. reentrant_lock
   357. 4.357. reentrant_lock_data_ptr
   358. 4.358. refcell_try_map
   359. 4.359. restricted_std
   360. 4.360. return_address
   361. 4.361. rev_into_inner
   362. 4.362. rt
   363. 4.363. rwlock_data_ptr
   364. 4.364. sealed
   365. 4.365. seek_io_take_position
   366. 4.366. seek_stream_len
   367. 4.367. set_permissions_nofollow
   368. 4.368. set_ptr_value
   369. 4.369. setgroups
   370. 4.370. sgx_platform
   371. 4.371. share_trait
   372. 4.372. signed_bigint_helpers
   373. 4.373. sized_type_properties
   374. 4.374. slice_concat_ext
   375. 4.375. slice_concat_trait
   376. 4.376. slice_from_ptr_range
   377. 4.377. slice_index_methods
   378. 4.378. slice_internals
   379. 4.379. slice_iter_mut_as_mut_slice
   380. 4.380. slice_partial_sort_unstable
   381. 4.381. slice_partition_dedup
   382. 4.382. slice_pattern
   383. 4.383. slice_ptr_get
   384. 4.384. slice_range
   385. 4.385. slice_shift
   386. 4.386. slice_split_once
   387. 4.387. slice_swap_unchecked
   388. 4.388. sliceindex_wrappers
   389. 4.389. smart_pointer_try_map
   390. 4.390. solid_ext
   391. 4.391. sort_floats
   392. 4.392. split_array
   393. 4.393. split_as_slice
   394. 4.394. std_internals
   395. 4.395. stdarch_aarch64_feature_detection
   396. 4.396. stdarch_arm_feature_detection
   397. 4.397. stdarch_internal
   398. 4.398. stdarch_loongarch_feature_detection
   399. 4.399. stdarch_mips_feature_detection
   400. 4.400. stdarch_powerpc_feature_detection
   401. 4.401. stdarch_riscv_feature_detection
   402. 4.402. stdio_fd_consts
   403. 4.403. stdio_makes_pipe
   404. 4.404. stdio_swap
   405. 4.405. step_trait
   406. 4.406. str_as_str
   407. 4.407. str_from_raw_parts
   408. 4.408. str_internals
   409. 4.409. str_lines_remainder
   410. 4.410. str_split_inclusive_remainder
   411. 4.411. str_split_remainder
   412. 4.412. str_split_whitespace_remainder
   413. 4.413. string_from_utf8_lossy_owned
   414. 4.414. string_into_chars
   415. 4.415. string_remove_matches
   416. 4.416. string_replace_in_place
   417. 4.417. sync_nonpoison
   418. 4.418. sync_poison_mod
   419. 4.419. sync_unsafe_cell
   420. 4.420. tcp_deferaccept
   421. 4.421. tcp_keepalive
   422. 4.422. tcp_linger
   423. 4.423. tcplistener_into_incoming
   424. 4.424. temporary_niche_types
   425. 4.425. test
   426. 4.426. thin_box
   427. 4.427. thread_id_value
   428. 4.428. thread_local_internals
   429. 4.429. thread_raw
   430. 4.430. thread_sleep_until
   431. 4.431. thread_spawn_hook
   432. 4.432. time_saturating_systemtime
   433. 4.433. time_systemtime_limits
   434. 4.434. titlecase
   435. 4.435. trace_macros
   436. 4.436. transmutability
   437. 4.437. transmute_neo
   438. 4.438. transmute_prefix
   439. 4.439. trim_prefix_suffix
   440. 4.440. trivial_clone
   441. 4.441. trusted_fused
   442. 4.442. trusted_len
   443. 4.443. trusted_random_access
   444. 4.444. trusted_step
   445. 4.445. try_as_dyn
   446. 4.446. try_entry
   447. 4.447. try_find
   448. 4.448. try_from_int_error_kind
   449. 4.449. try_reserve_kind
   450. 4.450. try_trait_v2
   451. 4.451. try_trait_v2_residual
   452. 4.452. try_trait_v2_yeet
   453. 4.453. try_with_capacity
   454. 4.454. tuple_trait
   455. 4.455. type_ascription
   456. 4.456. type_info
   457. 4.457. ub_checks
   458. 4.458. uefi_std
   459. 4.459. uint_carryless_mul
   460. 4.460. uint_gather_scatter_bits
   461. 4.461. unicode_internals
   462. 4.462. unique_rc_arc
   463. 4.463. unix_file_vectored_at
   464. 4.464. unix_kill_process_group
   465. 4.465. unix_mkfifo
   466. 4.466. unix_send_signal
   467. 4.467. unix_set_mark
   468. 4.468. unix_socket_ancillary_data
   469. 4.469. unix_socket_exclbind
   470. 4.470. unix_socket_peek
   471. 4.471. unsafe_cell_access
   472. 4.472. unsafe_pinned
   473. 4.473. unsafe_unpin
   474. 4.474. unsize
   475. 4.475. unwrap_infallible
   476. 4.476. update_panic_count
   477. 4.477. utf16_extra
   478. 4.478. variant_count
   479. 4.479. vec_deque_extract_if
   480. 4.480. vec_deque_iter_as_slices
   481. 4.481. vec_deque_truncate_front
   482. 4.482. vec_fallible_shrink
   483. 4.483. vec_from_fn
   484. 4.484. vec_into_chunks
   485. 4.485. vec_peek_mut
   486. 4.486. vec_push_within_capacity
   487. 4.487. vec_recycle
   488. 4.488. vec_split_at_spare
   489. 4.489. vec_try_remove
   490. 4.490. waker_fn
   491. 4.491. waker_from_fn_ptr
   492. 4.492. wasi_ext
   493. 4.493. widening_mul
   494. 4.494. windows_by_handle
   495. 4.495. windows_c
   496. 4.496. windows_change_time
   497. 4.497. windows_freeze_file_times
   498. 4.498. windows_handle
   499. 4.499. windows_net
   500. 4.500. windows_permissions_ext
   501. 4.501. windows_process_exit_code_from
   502. 4.502. windows_process_extensions_async_pipes
   503. 4.503. windows_process_extensions_force_quotes
   504. 4.504. windows_process_extensions_inherit_handles
   505. 4.505. windows_process_extensions_main_thread_handle
   506. 4.506. windows_process_extensions_raw_attribute
   507. 4.507. windows_process_extensions_show_window
   508. 4.508. windows_process_extensions_startupinfo
   509. 4.509. windows_stdio
   510. 4.510. windows_unix_domain_sockets
   511. 4.511. wrapping_int_impl
   512. 4.512. wrapping_next_power_of_two
   513. 4.513. write_all_vectored
   514. 4.514. wtf8_internals
   515. 4.515. xdg_basedir
   516. 4.516. yeet_desugar_details