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. disable_param_env_normalization_hack
   40. 2.40. dual_proc_macros
   41. 2.41. dump_dep_graph
   42. 2.42. dump_mir
   43. 2.43. dump_mir_dataflow
   44. 2.44. dump_mir_dir
   45. 2.45. dump_mir_exclude_alloc_bytes
   46. 2.46. dump_mir_exclude_pass_number
   47. 2.47. dump_mir_graphviz
   48. 2.48. dump_mono_stats
   49. 2.49. dump_mono_stats_format
   50. 2.50. dwarf_version
   51. 2.51. dylib_lto
   52. 2.52. eagerly_emit_delayed_bugs
   53. 2.53. ehcont_guard
   54. 2.54. embed_metadata
   55. 2.55. embed_source
   56. 2.56. emit_stack_sizes
   57. 2.57. enforce_type_length_limit
   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. implicit_sysroot_deps
   83. 2.83. incremental_ignore_spans
   84. 2.84. incremental_info
   85. 2.85. incremental_verify_ich
   86. 2.86. indirect_branch_cs_prefix
   87. 2.87. inline_llvm
   88. 2.88. inline_mir
   89. 2.89. inline_mir_forwarder_threshold
   90. 2.90. inline_mir_hint_threshold
   91. 2.91. inline_mir_preserve_debug
   92. 2.92. inline_mir_threshold
   93. 2.93. input_stats
   94. 2.94. instrument_mcount
   95. 2.95. instrument_xray
   96. 2.96. internal_testing_features
   97. 2.97. large_data_threshold
   98. 2.98. layout_seed
   99. 2.99. link_directives
   100. 2.100. link_native_libraries
   101. 2.101. link_only
   102. 2.102. lint_llvm_ir
   103. 2.103. lint_mir
   104. 2.104. llvm_module_flag
   105. 2.105. llvm_plugins
   106. 2.106. llvm_target_feature
   107. 2.107. llvm_time_trace
   108. 2.108. llvm_writable
   109. 2.109. location_detail
   110. 2.110. ls
   111. 2.111. macro_backtrace
   112. 2.112. macro_stats
   113. 2.113. maximal_hir_to_mir_coverage
   114. 2.114. merge_functions
   115. 2.115. meta_stats
   116. 2.116. metadata_crate_hash
   117. 2.117. metrics_dir
   118. 2.118. min_function_alignment
   119. 2.119. min_recursion_limit
   120. 2.120. mir_enable_passes
   121. 2.121. mir_include_spans
   122. 2.122. mir_opt_bisect_limit
   123. 2.123. mir_opt_level
   124. 2.124. mir_preserve_ub
   125. 2.125. mir_strip_debuginfo
   126. 2.126. move_size_limit
   127. 2.127. namespaced_crates
   128. 2.128. next_solver
   129. 2.129. nll_facts
   130. 2.130. nll_facts_dir
   131. 2.131. no_analysis
   132. 2.132. no_codegen
   133. 2.133. no_generate_arange_section
   134. 2.134. no_implied_bounds_compat
   135. 2.135. no_leak_check
   136. 2.136. no_link
   137. 2.137. no_parallel_backend
   138. 2.138. no_parallel_llvm
   139. 2.139. no_profiler_runtime
   140. 2.140. no_steal_thir
   141. 2.141. no_trait_vptr
   142. 2.142. no_unique_section_names
   143. 2.143. normalize_docs
   144. 2.144. offload
   145. 2.145. on_broken_pipe
   146. 2.146. osx_rpath_install_name
   147. 2.147. packed_bundled_libs
   148. 2.148. packed_stack
   149. 2.149. panic_abort_tests
   150. 2.150. panic_in_drop
   151. 2.151. parse_crate_root_only
   152. 2.152. patchable_function_entry
   153. 2.153. plt
   154. 2.154. pointer_authentication
   155. 2.155. polonius
   156. 2.156. pre_link_arg
   157. 2.157. pre_link_args
   158. 2.158. precise_enum_drop_elaboration
   159. 2.159. print_check_cfg
   160. 2.160. print_codegen_stats
   161. 2.161. print_codegen_stats_json
   162. 2.162. print_crate_root_lint_levels
   163. 2.163. print_llvm_passes
   164. 2.164. print_mono_items
   165. 2.165. print_supported_crate_types
   166. 2.166. print_type_sizes
   167. 2.167. print_wasm_proc_macro_tuple
   168. 2.168. proc_macro_backtrace
   169. 2.169. proc_macro_execution_strategy
   170. 2.170. profile_closures
   171. 2.171. profiler_runtime
   172. 2.172. query_dep_graph
   173. 2.173. randomize_layout
   174. 2.174. reg_struct_return
   175. 2.175. regparm
   176. 2.176. relax_elf_relocations
   177. 2.177. remap_cwd_prefix
   178. 2.178. remark_dir
   179. 2.179. renormalize_rigid_aliases
   180. 2.180. report_time
   181. 2.181. retpoline
   182. 2.182. retpoline_external_thunk
   183. 2.183. sanitizer
   184. 2.184. sanitizer_cfi_canonical_jump_tables
   185. 2.185. sanitizer_cfi_diag
   186. 2.186. sanitizer_cfi_generalize_pointers
   187. 2.187. sanitizer_cfi_normalize_integers
   188. 2.188. sanitizer_cfi_recover
   189. 2.189. sanitizer_dataflow_abilist
   190. 2.190. sanitizer_ignorelist
   191. 2.191. sanitizer_kcfi_arity
   192. 2.192. sanitizer_memory_track_origins
   193. 2.193. sanitizer_recover
   194. 2.194. self_profile
   195. 2.195. self_profile_counter
   196. 2.196. self_profile_events
   197. 2.197. share_generics
   198. 2.198. shell_argfiles
   199. 2.199. simulate_remapped_rust_src_base
   200. 2.200. small_data_threshold
   201. 2.201. span_debug
   202. 2.202. span_free_formats
   203. 2.203. split_dwarf_inlining
   204. 2.204. split_dwarf_kind
   205. 2.205. split_dwarf_out_dir
   206. 2.206. split_lto_unit
   207. 2.207. src_hash_algorithm
   208. 2.208. stack_protector
   209. 2.209. staticlib_allow_rdylib_deps
   210. 2.210. staticlib_hide_internal_symbols
   211. 2.211. staticlib_prefer_dynamic
   212. 2.212. staticlib_rename_internal_symbols
   213. 2.213. strict_init_checks
   214. 2.214. teach
   215. 2.215. temps_dir
   216. 2.216. terminal_urls
   217. 2.217. thinlto
   218. 2.218. threads
   219. 2.219. time_llvm_passes
   220. 2.220. time_passes
   221. 2.221. time_passes_format
   222. 2.222. tiny_const_eval_limit
   223. 2.223. tls_model
   224. 2.224. trace_macros
   225. 2.225. track_diagnostics
   226. 2.226. translate_remapped_path_to_local_path
   227. 2.227. trap_unreachable
   228. 2.228. treat_err_as_bug
   229. 2.229. trim_diagnostic_paths
   230. 2.230. tune_cpu
   231. 2.231. typing_mode_post_typeck_until_borrowck
   232. 2.232. ub_checks
   233. 2.233. ui_testing
   234. 2.234. uninit_const_chunk_threshold
   235. 2.235. unleash_the_miri_inside_of_you
   236. 2.236. unpretty
   237. 2.237. unsound_mir_opts
   238. 2.238. unstable_options
   239. 2.239. use_ctors_section
   240. 2.240. use_sync_unwind
   241. 2.241. validate_mir
   242. 2.242. verbose_asm
   243. 2.243. verbose_internals
   244. 2.244. verify_llvm_ir
   245. 2.245. virtual_function_elimination
   246. 2.246. wasi_exec_model
   247. 2.247. wasm_c_abi
   248. 2.248. wasm_proc_macros
   249. 2.249. 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_gpu_kernel
   6. 3.6. abi_msp430_interrupt
   7. 3.7. abi_ptx
   8. 3.8. abi_riscv_interrupt
   9. 3.9. abi_swift
   10. 3.10. abi_vectorcall
   11. 3.11. abi_x86_interrupt
   12. 3.12. adt_const_params
   13. 3.13. alloc_error_handler
   14. 3.14. allocator_internals
   15. 3.15. allow_internal_unsafe
   16. 3.16. allow_internal_unstable
   17. 3.17. anonymous_lifetime_in_impl_trait
   18. 3.18. apx_target_feature
   19. 3.19. arbitrary_self_types
   20. 3.20. arbitrary_self_types_pointers
   21. 3.21. arm_target_feature
   22. 3.22. asm_const_ptr
   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. bpf_target_feature
   37. 3.37. builtin_syntax
   38. 3.38. c_variadic_experimental_arch
   39. 3.39. cfg_contract_checks
   40. 3.40. cfg_overflow_checks
   41. 3.41. cfg_relocation_model
   42. 3.42. cfg_sanitize
   43. 3.43. cfg_sanitizer_cfi
   44. 3.44. cfg_target_compact
   45. 3.45. cfg_target_has_atomic
   46. 3.46. cfg_target_has_reliable_f16_f128
   47. 3.47. cfg_target_has_reliable_f16b
   48. 3.48. cfg_target_has_threads
   49. 3.49. cfg_target_object_format
   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. checked_type_aliases
   55. 3.55. clflushopt_target_feature
   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_param_ty_unchecked
   67. 3.67. const_precise_live_drops
   68. 3.68. const_trait_impl
   69. 3.69. const_try
   70. 3.70. contracts
   71. 3.71. contracts_internals
   72. 3.72. coroutine_clone
   73. 3.73. coroutines
   74. 3.74. coverage_attribute
   75. 3.75. csky_target_feature
   76. 3.76. custom_inner_attributes
   77. 3.77. custom_mir
   78. 3.78. custom_test_frameworks
   79. 3.79. decl_macro
   80. 3.80. default_field_values
   81. 3.81. deprecated_suggestion
   82. 3.82. deref_patterns
   83. 3.83. derive_from
   84. 3.84. diagnostic_on_const
   85. 3.85. diagnostic_on_move
   86. 3.86. diagnostic_on_type_error
   87. 3.87. diagnostic_on_unknown
   88. 3.88. diagnostic_on_unmatched_args
   89. 3.89. diagnostic_opaque
   90. 3.90. doc_cfg
   91. 3.91. doc_masked
   92. 3.92. doc_notable_trait
   93. 3.93. dropck_eyepatch
   94. 3.94. effective_target_features
   95. 3.95. eii_internals
   96. 3.96. ergonomic_clones
   97. 3.97. ermsb_target_feature
   98. 3.98. exhaustive_patterns
   99. 3.99. explicit_extern_abis
   100. 3.100. explicit_tail_calls
   101. 3.101. export_stable
   102. 3.102. extern_item_impls
   103. 3.103. extern_types
   104. 3.104. f128
   105. 3.105. f16
   106. 3.106. f16b
   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. fn_static
   117. 3.117. freeze_impls
   118. 3.118. frontmatter
   119. 3.119. fundamental
   120. 3.120. gca_const_items
   121. 3.121. gca_macroless_args
   122. 3.122. gca_macroless_items
   123. 3.123. gca_min_const_items
   124. 3.124. gen_blocks
   125. 3.125. generic_assert
   126. 3.126. generic_const_exprs
   127. 3.127. generic_const_items
   128. 3.128. generic_const_parameter_types
   129. 3.129. generic_pattern_types
   130. 3.130. global_registration
   131. 3.131. guard_patterns
   132. 3.132. half_open_range_patterns_in_slices
   133. 3.133. hexagon_target_feature
   134. 3.134. impl_restriction
   135. 3.135. impl_trait_in_assoc_type
   136. 3.136. impl_trait_in_bindings
   137. 3.137. impl_trait_in_fn_trait_return
   138. 3.138. import_trait_associated_functions
   139. 3.139. inherent_associated_types
   140. 3.140. instrument_fn
   141. 3.141. intra_doc_pointers
   142. 3.142. intrinsics
   143. 3.143. lahfsahf_target_feature
   144. 3.144. lang_items
   145. 3.145. large_assignments
   146. 3.146. link_arg_attribute
   147. 3.147. link_cfg
   148. 3.148. link_enzyme_intrinsics
   149. 3.149. link_llvm_intrinsics
   150. 3.150. linkage
   151. 3.151. loongarch_target_feature
   152. 3.152. loop_hints
   153. 3.153. loop_match
   154. 3.154. m68k_target_feature
   155. 3.155. macro_attr
   156. 3.156. macro_derive
   157. 3.157. macro_guard_matcher
   158. 3.158. macro_metavar_expr
   159. 3.159. macro_metavar_expr_concat
   160. 3.160. marker_trait_attr
   161. 3.161. min_adt_const_params
   162. 3.162. min_specialization
   163. 3.163. mips_target_feature
   164. 3.164. more_maybe_bounds
   165. 3.165. more_qualified_paths
   166. 3.166. move_expr
   167. 3.167. movrs_target_feature
   168. 3.168. multiple_supertrait_upcastable
   169. 3.169. must_not_suspend
   170. 3.170. mut_ref
   171. 3.171. mut_restriction
   172. 3.172. naked_functions_rustic_abi
   173. 3.173. naked_functions_target_feature
   174. 3.174. named_fn_trait_parameters
   175. 3.175. native_link_modifiers_as_needed
   176. 3.176. needs_panic_runtime
   177. 3.177. negative_bounds
   178. 3.178. negative_impls
   179. 3.179. never_patterns
   180. 3.180. new_range
   181. 3.181. no_core
   182. 3.182. non_exhaustive_omitted_patterns_lint
   183. 3.183. non_lifetime_binders
   184. 3.184. nvptx_target_feature
   185. 3.185. offset_of_enum
   186. 3.186. offset_of_slice
   187. 3.187. optimize_attribute
   188. 3.188. panic_runtime
   189. 3.189. patchable_function_entry
   190. 3.190. pattern_complexity_limit
   191. 3.191. pattern_types
   192. 3.192. pin_ergonomics
   193. 3.193. postfix_match
   194. 3.194. powerpc_target_feature
   195. 3.195. prelude_import
   196. 3.196. prfchw_target_feature
   197. 3.197. proc_macro_hygiene
   198. 3.198. profiler_runtime
   199. 3.199. raw_dylib_elf
   200. 3.200. reborrow
   201. 3.201. ref_pat_eat_one_layer_2024
   202. 3.202. ref_pat_eat_one_layer_2024_structural
   203. 3.203. register_tool
   204. 3.204. repr_simd
   205. 3.205. return_type_notation
   206. 3.206. riscv_target_feature
   207. 3.207. rtm_target_feature
   208. 3.208. rust_cold_cc
   209. 3.209. rust_preserve_none_cc
   210. 3.210. rust_tail_cc
   211. 3.211. rustc_attrs
   212. 3.212. rustc_private
   213. 3.213. rustdoc_internals
   214. 3.214. rustdoc_missing_doc_code_examples
   215. 3.215. s390x_target_feature
   216. 3.216. sanitize
   217. 3.217. simd_ffi
   218. 3.218. sized_hierarchy
   219. 3.219. sparc_target_feature
   220. 3.220. specialization
   221. 3.221. splat
   222. 3.222. staged_api
   223. 3.223. static_align
   224. 3.224. stmt_expr_attributes
   225. 3.225. strict_provenance_lints
   226. 3.226. structural_match
   227. 3.227. super_let
   228. 3.228. supertrait_item_shadowing
   229. 3.229. test_binder_constraints
   230. 3.230. test_incomplete_feature
   231. 3.231. test_unstable_lint
   232. 3.232. thread_local
   233. 3.233. trait_alias
   234. 3.234. transmute_generic_consts
   235. 3.235. transparent_unions
   236. 3.236. trivial_bounds
   237. 3.237. try_blocks
   238. 3.238. try_blocks_heterogeneous
   239. 3.239. type_alias_impl_trait
   240. 3.240. type_changing_struct_update
   241. 3.241. unboxed_closures
   242. 3.242. unnamed_enum_variants
   243. 3.243. unqualified_local_imports
   244. 3.244. unsafe_binders
   245. 3.245. unsafe_fields
   246. 3.246. unsized_const_params
   247. 3.247. unsized_fn_params
   248. 3.248. used_with_arg
   249. 3.249. view_types
   250. 3.250. wasm_target_feature
   251. 3.251. where_clause_attrs
   252. 3.252. with_negative_coherence
   253. 3.253. x86_amx_intrinsics
   254. 3.254. x87_target_feature
   255. 3.255. xop_target_feature
   256. 3.256. xtensa_target_feature
   257. 3.257. yeet_expr
   258. 3.258. 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. addr_unspecified_from
   6. 4.6. align_to_uninit_mut
   7. 4.7. alloc_error_hook
   8. 4.8. alloc_internals
   9. 4.9. alloc_io
   10. 4.10. alloc_slice_into_array
   11. 4.11. allocator_ext
   12. 4.12. alloctests
   13. 4.13. arc_is_unique
   14. 4.14. arc_raw_get_strong
   15. 4.15. array_into_iter_constructors
   16. 4.16. array_ptr_get
   17. 4.17. array_try_from_fn
   18. 4.18. array_try_map
   19. 4.19. ascii_char
   20. 4.20. ascii_char_variants
   21. 4.21. async_fn_traits
   22. 4.22. async_gen_internals
   23. 4.23. async_iter_from_iter
   24. 4.24. async_iterator
   25. 4.25. atomic_internals
   26. 4.26. atomic_ptr_null
   27. 4.27. atomic_volatile
   28. 4.28. autodiff
   29. 4.29. backtrace_frames
   30. 4.30. bikeshed_guaranteed_no_drop
   31. 4.31. binary_heap_as_mut_slice
   32. 4.32. binary_heap_drain_sorted
   33. 4.33. binary_heap_from_raw_vec
   34. 4.34. binary_heap_into_iter_sorted
   35. 4.35. binary_heap_peek_mut_refresh
   36. 4.36. binary_heap_pop_if
   37. 4.37. borrowed_buf_init
   38. 4.38. bound_as_ref
   39. 4.39. bound_copied
   40. 4.40. box_as_non_null
   41. 4.41. box_into_boxed_slice
   42. 4.42. box_into_inner
   43. 4.43. breakpoint
   44. 4.44. bstr
   45. 4.45. bstr_internals
   46. 4.46. bstr_to_string
   47. 4.47. btree_cursors
   48. 4.48. btree_merge
   49. 4.49. btree_set_entry
   50. 4.50. btreemap_alloc
   51. 4.51. buf_read_has_data_left
   52. 4.52. bufreader_peek
   53. 4.53. c_size_t
   54. 4.54. c_variadic_int128
   55. 4.55. c_variadic_va_arg_safe
   56. 4.56. c_void_variant
   57. 4.57. can_vector
   58. 4.58. case_ignorable
   59. 4.59. casefold
   60. 4.60. cast_maybe_uninit
   61. 4.61. cell_get_cloned
   62. 4.62. cell_leak
   63. 4.63. cfg_accessible
   64. 4.64. cfg_eval
   65. 4.65. char_internals
   66. 4.66. char_to_u32
   67. 4.67. char_unassigned_private_use
   68. 4.68. clamp_bounds
   69. 4.69. clamp_magnitude
   70. 4.70. clamp_to
   71. 4.71. clone_from_ref
   72. 4.72. clone_to_uninit
   73. 4.73. cmp_minmax
   74. 4.74. cmp_splat
   75. 4.75. cmp_splat_internals
   76. 4.76. coerce_pointee_validated
   77. 4.77. coerce_unsized
   78. 4.78. command_resolved_envs
   79. 4.79. complex_numbers
   80. 4.80. concat_bytes
   81. 4.81. const_alloc_error
   82. 4.82. const_array
   83. 4.83. const_atomic
   84. 4.84. const_binary_search
   85. 4.85. const_bool
   86. 4.86. const_btree_len
   87. 4.87. const_carrying_mul_add
   88. 4.88. const_cell_traits
   89. 4.89. const_clone
   90. 4.90. const_cmp
   91. 4.91. const_control_flow
   92. 4.92. const_convert
   93. 4.93. const_default
   94. 4.94. const_drop_guard
   95. 4.95. const_drop_in_place
   96. 4.96. const_eval_select
   97. 4.97. const_format_args
   98. 4.98. const_heap
   99. 4.99. const_index
   100. 4.100. const_iter
   101. 4.101. const_manually_drop_take
   102. 4.102. const_never_short_circuit
   103. 4.103. const_nonnull_with_exposed_provenance
   104. 4.104. const_ops
   105. 4.105. const_option_ops
   106. 4.106. const_param_ty_trait
   107. 4.107. const_path_separators
   108. 4.108. const_range
   109. 4.109. const_range_bounds
   110. 4.110. const_raw_ptr_comparison
   111. 4.111. const_ref_cell
   112. 4.112. const_result_trait_fn
   113. 4.113. const_result_unwrap_unchecked
   114. 4.114. const_select_unpredictable
   115. 4.115. const_slice_from_mut_ptr_range
   116. 4.116. const_slice_from_ptr_range
   117. 4.117. const_slice_make_iter
   118. 4.118. const_split_off_first_last
   119. 4.119. const_swap_with_slice
   120. 4.120. const_try_residual
   121. 4.121. const_type_name
   122. 4.122. const_unsigned_bigint_helpers
   123. 4.123. const_volatile
   124. 4.124. container_error_extra
   125. 4.125. context_ext
   126. 4.126. control_flow_into_value
   127. 4.127. convert_float_to_int
   128. 4.128. copied_into_inner
   129. 4.129. core_float_math
   130. 4.130. core_intrinsics
   131. 4.131. core_intrinsics_fallbacks
   132. 4.132. core_io
   133. 4.133. core_io_borrowed_buf
   134. 4.134. core_io_internals
   135. 4.135. core_private_bignum
   136. 4.136. core_private_diy_float
   137. 4.137. coroutine_trait
   138. 4.138. covariant_unsafe_cell
   139. 4.139. cow_is_borrowed
   140. 4.140. cstr_bytes
   141. 4.141. cstr_display
   142. 4.142. cstr_internals
   143. 4.143. current_thread_id
   144. 4.144. cursor_split
   145. 4.145. darwin_objc
   146. 4.146. deadline_api
   147. 4.147. debug_closure_helpers
   148. 4.148. dec2flt
   149. 4.149. default_ignorable
   150. 4.150. deque_extend_front
   151. 4.151. deref_pure_trait
   152. 4.152. derive_clone_copy_internals
   153. 4.153. derive_coerce_pointee
   154. 4.154. derive_const
   155. 4.155. derive_eq_internals
   156. 4.156. derive_macro_global_path
   157. 4.157. dir_entry_ext2
   158. 4.158. dirfd
   159. 4.159. discriminant_kind
   160. 4.160. disjoint_bitor
   161. 4.161. dispatch_from_dyn
   162. 4.162. downcast_unchecked
   163. 4.163. drain_keep_rest
   164. 4.164. duration_constants
   165. 4.165. duration_constructors
   166. 4.166. duration_integer_division
   167. 4.167. duration_millis_float
   168. 4.168. duration_units
   169. 4.169. edition_panic
   170. 4.170. error_generic_member_access
   171. 4.171. error_iter
   172. 4.172. error_reporter
   173. 4.173. error_type_id
   174. 4.174. exact_bitshifts
   175. 4.175. exact_div
   176. 4.176. exact_size_is_empty
   177. 4.177. exit_status_error
   178. 4.178. exitcode_exit_method
   179. 4.179. extend_one
   180. 4.180. extend_one_unchecked
   181. 4.181. f32_from_f16
   182. 4.182. fd
   183. 4.183. file_buffered
   184. 4.184. float_bits_const
   185. 4.185. float_conversions
   186. 4.186. float_erf
   187. 4.187. float_exact_integer_constants
   188. 4.188. float_gamma
   189. 4.189. float_masks
   190. 4.190. float_minimum_maximum
   191. 4.191. float_nan_to
   192. 4.192. flt2dec
   193. 4.193. fmt_arguments_from_str
   194. 4.194. fmt_helpers_for_derive
   195. 4.195. fmt_internals
   196. 4.196. fn_traits
   197. 4.197. forget_unsized
   198. 4.198. format_args_nl
   199. 4.199. formatting_options
   200. 4.200. freeze
   201. 4.201. funnel_shifts
   202. 4.202. future_join
   203. 4.203. gen_future
   204. 4.204. generic_assert_internals
   205. 4.205. generic_atomic
   206. 4.206. get_disjoint_mut_helpers
   207. 4.207. get_mut_unchecked
   208. 4.208. gethostname
   209. 4.209. gpu_intrinsics
   210. 4.210. gpu_launch_sized_workgroup_mem
   211. 4.211. gpu_offload
   212. 4.212. hash_map_internals
   213. 4.213. hash_map_macro
   214. 4.214. hash_set_entry
   215. 4.215. hasher_prefixfree_extras
   216. 4.216. hashmap_internals
   217. 4.217. hint_must_use
   218. 4.218. hint_prefetch
   219. 4.219. inplace_iteration
   220. 4.220. int_from_ascii
   221. 4.221. int_roundings
   222. 4.222. integer_atomics
   223. 4.223. integer_cast_extras
   224. 4.224. integer_casts
   225. 4.225. integer_widen_truncate
   226. 4.226. internal_output_capture
   227. 4.227. io_const_error
   228. 4.228. io_const_error_internals
   229. 4.229. io_copy_internals
   230. 4.230. io_error_inprogress
   231. 4.231. io_error_input_output_error
   232. 4.232. io_error_more
   233. 4.233. io_error_too_many_open_files
   234. 4.234. io_error_uncategorized
   235. 4.235. io_slice_as_bytes
   236. 4.236. ip
   237. 4.237. ip_as_octets
   238. 4.238. ip_multicast_reserved
   239. 4.239. is_ascii_octdigit
   240. 4.240. iter_advance_by
   241. 4.241. iter_array_chunks
   242. 4.242. iter_collect_into
   243. 4.243. iter_from_coroutine
   244. 4.244. iter_intersperse
   245. 4.245. iter_is_partitioned
   246. 4.246. iter_macro
   247. 4.247. iter_map_windows
   248. 4.248. iter_next_chunk
   249. 4.249. iter_order_by
   250. 4.250. iter_partition_in_place
   251. 4.251. iterator_try_collect
   252. 4.252. iterator_try_reduce
   253. 4.253. junction_point
   254. 4.254. lazy_cell_into_inner
   255. 4.255. legacy_receiver_trait
   256. 4.256. liballoc_internals
   257. 4.257. libstd_sys_internals
   258. 4.258. likely_unlikely
   259. 4.259. linked_list_cursors
   260. 4.260. linked_list_remove
   261. 4.261. linked_list_retain
   262. 4.262. linux_pidfd
   263. 4.263. local_waker
   264. 4.264. lock_value_accessors
   265. 4.265. log_syntax
   266. 4.266. map_try_insert
   267. 4.267. mapped_lock_guards
   268. 4.268. maybe_dangling
   269. 4.269. maybe_uninit_array_assume_init
   270. 4.270. maybe_uninit_as_bytes
   271. 4.271. maybe_uninit_fill
   272. 4.272. maybe_uninit_uninit_array_transpose
   273. 4.273. mem_copy_fn
   274. 4.274. more_float_constants
   275. 4.275. motor_ext
   276. 4.276. mpmc_channel
   277. 4.277. mpsc_is_disconnected
   278. 4.278. mutex_data_ptr
   279. 4.279. new_range_remainder
   280. 4.280. next_index
   281. 4.281. nonpoison_condvar
   282. 4.282. nonpoison_mutex
   283. 4.283. nonpoison_rwlock
   284. 4.284. nonzero_bitwise
   285. 4.285. nonzero_from_mut
   286. 4.286. nonzero_internals
   287. 4.287. nonzero_ops
   288. 4.288. normalize_lexically
   289. 4.289. num_internals
   290. 4.290. numfmt
   291. 4.291. objc_class_variant
   292. 4.292. objc_selector_variant
   293. 4.293. once_cell_get_mut
   294. 4.294. once_cell_new_init
   295. 4.295. once_cell_try
   296. 4.296. once_cell_try_insert
   297. 4.297. once_lazy_lock_get_unchecked
   298. 4.298. once_lock_new_init
   299. 4.299. one_sided_range
   300. 4.300. oneshot_channel
   301. 4.301. option_array_transpose
   302. 4.302. option_get_or_try_insert_with
   303. 4.303. option_into_flat_iter
   304. 4.304. option_reduce
   305. 4.305. option_reference_flattening
   306. 4.306. option_zip
   307. 4.307. os_str_slice
   308. 4.308. os_str_split_at
   309. 4.309. os_string_truncate
   310. 4.310. panic_abort
   311. 4.311. panic_always_abort
   312. 4.312. panic_backtrace_config
   313. 4.313. panic_can_unwind
   314. 4.314. panic_internals
   315. 4.315. panic_unwind
   316. 4.316. panic_update_hook
   317. 4.317. partial_ord_chaining_methods
   318. 4.318. path_absolute_method
   319. 4.319. path_trailing_sep
   320. 4.320. pattern
   321. 4.321. pattern_type_macro
   322. 4.322. pattern_type_range_trait
   323. 4.323. peer_credentials_unix_socket
   324. 4.324. phantom_variance_markers
   325. 4.325. pin_coerce_unsized_trait
   326. 4.326. pin_derefmut_internals
   327. 4.327. pin_macro_internals
   328. 4.328. pointer_is_aligned_to
   329. 4.329. pointer_try_cast_aligned
   330. 4.330. portable_simd
   331. 4.331. prelude_future
   332. 4.332. prelude_next
   333. 4.333. print_internals
   334. 4.334. proc_macro_def_site
   335. 4.335. proc_macro_diagnostic
   336. 4.336. proc_macro_expand
   337. 4.337. proc_macro_internals
   338. 4.338. proc_macro_quote
   339. 4.339. proc_macro_span
   340. 4.340. proc_macro_totokens
   341. 4.341. proc_macro_tracked_env
   342. 4.342. proc_macro_tracked_path
   343. 4.343. proc_macro_value
   344. 4.344. process_chroot
   345. 4.345. process_exitcode_internals
   346. 4.346. process_internals
   347. 4.347. process_setsid
   348. 4.348. profiler_runtime_lib
   349. 4.349. profiling_marker_api
   350. 4.350. ptr_alignment_type
   351. 4.351. ptr_as_uninit
   352. 4.352. ptr_cast_array
   353. 4.353. ptr_cast_slice
   354. 4.354. ptr_internals
   355. 4.355. ptr_mask
   356. 4.356. ptr_metadata
   357. 4.357. pub_crate_should_not_need_unstable_attr
   358. 4.358. random
   359. 4.359. range_bounds_is_empty
   360. 4.360. range_into_bounds
   361. 4.361. raw_os_error_ty
   362. 4.362. raw_slice_split
   363. 4.363. raw_vec_internals
   364. 4.364. read_array
   365. 4.365. read_buf
   366. 4.366. read_buf_at
   367. 4.367. read_le
   368. 4.368. read_le_be_internals
   369. 4.369. reentrant_lock
   370. 4.370. reentrant_lock_data_ptr
   371. 4.371. refcell_try_map
   372. 4.372. restricted_std
   373. 4.373. return_address
   374. 4.374. rev_into_inner
   375. 4.375. rt
   376. 4.376. rwlock_data_ptr
   377. 4.377. seek_io_take_position
   378. 4.378. seek_read_exact_seek_write_all
   379. 4.379. seek_stream_len
   380. 4.380. set_permissions_nofollow
   381. 4.381. set_ptr_value
   382. 4.382. setgroups
   383. 4.383. sgx_platform
   384. 4.384. share_trait
   385. 4.385. signed_bigint_helpers
   386. 4.386. sized_type_properties
   387. 4.387. slice_concat_ext
   388. 4.388. slice_concat_trait
   389. 4.389. slice_from_ptr_range
   390. 4.390. slice_index_methods
   391. 4.391. slice_internals
   392. 4.392. slice_iter_mut_as_mut_slice
   393. 4.393. slice_partial_sort_unstable
   394. 4.394. slice_partition_dedup
   395. 4.395. slice_pattern
   396. 4.396. slice_ptr_get
   397. 4.397. slice_range
   398. 4.398. slice_shift
   399. 4.399. slice_split_once
   400. 4.400. slice_swap_unchecked
   401. 4.401. sliceindex_wrappers
   402. 4.402. smart_pointer_try_map
   403. 4.403. solid_ext
   404. 4.404. sort_floats
   405. 4.405. split_array
   406. 4.406. split_as_slice
   407. 4.407. std_internals
   408. 4.408. stdarch_aarch64_feature_detection
   409. 4.409. stdarch_arm_feature_detection
   410. 4.410. stdarch_internal
   411. 4.411. stdarch_loongarch_feature_detection
   412. 4.412. stdarch_mips_feature_detection
   413. 4.413. stdarch_powerpc_feature_detection
   414. 4.414. stdarch_riscv_feature_detection
   415. 4.415. stdio_fd_consts
   416. 4.416. stdio_makes_pipe
   417. 4.417. stdio_swap
   418. 4.418. step_trait
   419. 4.419. str_as_str
   420. 4.420. str_copy_from_str
   421. 4.421. str_from_raw_parts
   422. 4.422. str_internals
   423. 4.423. str_lines_remainder
   424. 4.424. str_split_inclusive_remainder
   425. 4.425. str_split_remainder
   426. 4.426. str_split_whitespace_remainder
   427. 4.427. string_into_chars
   428. 4.428. string_remove_matches
   429. 4.429. string_replace_in_place
   430. 4.430. sync_nonpoison
   431. 4.431. sync_poison_mod
   432. 4.432. sync_unsafe_cell
   433. 4.433. tcp_deferaccept
   434. 4.434. tcp_keepalive
   435. 4.435. tcp_linger
   436. 4.436. tcplistener_into_incoming
   437. 4.437. temporary_niche_types
   438. 4.438. test
   439. 4.439. thin_box
   440. 4.440. thread_id_value
   441. 4.441. thread_local_internals
   442. 4.442. thread_os_id
   443. 4.443. thread_raw
   444. 4.444. thread_sleep_until
   445. 4.445. thread_spawn_hook
   446. 4.446. time_saturating_systemtime
   447. 4.447. time_systemtime_limits
   448. 4.448. titlecase
   449. 4.449. trace_macros
   450. 4.450. transmutability
   451. 4.451. transmute_neo
   452. 4.452. transmute_prefix
   453. 4.453. trivial_clone
   454. 4.454. trusted_fused
   455. 4.455. trusted_len
   456. 4.456. trusted_random_access
   457. 4.457. trusted_step
   458. 4.458. try_as_dyn
   459. 4.459. try_entry
   460. 4.460. try_find
   461. 4.461. try_from_int_error_kind
   462. 4.462. try_reserve_kind
   463. 4.463. try_trait_v2
   464. 4.464. try_trait_v2_residual
   465. 4.465. try_trait_v2_yeet
   466. 4.466. try_with_capacity
   467. 4.467. tuple_trait
   468. 4.468. type_ascription
   469. 4.469. type_info
   470. 4.470. u8_split_ascii_whitespace
   471. 4.471. ub_checks
   472. 4.472. uefi_std
   473. 4.473. uint_carryless_mul
   474. 4.474. uint_gather_scatter_bits
   475. 4.475. unicode_internals
   476. 4.476. unique_rc_arc
   477. 4.477. unix_file_vectored_at
   478. 4.478. unix_kill_process_group
   479. 4.479. unix_mkfifo
   480. 4.480. unix_send_signal
   481. 4.481. unix_set_mark
   482. 4.482. unix_socket_ancillary_data
   483. 4.483. unix_socket_exclbind
   484. 4.484. unix_socket_peek
   485. 4.485. unsafe_pinned
   486. 4.486. unsafe_unpin
   487. 4.487. unsize
   488. 4.488. unwrap_infallible
   489. 4.489. update_panic_count
   490. 4.490. utf16_extra
   491. 4.491. variant_count
   492. 4.492. vec_as_non_null
   493. 4.493. vec_deque_extract_if
   494. 4.494. vec_deque_iter_as_slices
   495. 4.495. vec_deque_retain_range
   496. 4.496. vec_fallible_shrink
   497. 4.497. vec_into_chunks
   498. 4.498. vec_peek_mut
   499. 4.499. vec_push_within_capacity
   500. 4.500. vec_recycle
   501. 4.501. vec_split_at_spare
   502. 4.502. vec_try_remove
   503. 4.503. view_type_macro
   504. 4.504. waker_fn
   505. 4.505. waker_from_fn_ptr
   506. 4.506. wasi_ext
   507. 4.507. wasip2
   508. 4.508. widening_mul
   509. 4.509. windows_by_handle
   510. 4.510. windows_c
   511. 4.511. windows_change_time
   512. 4.512. windows_freeze_file_times
   513. 4.513. windows_handle
   514. 4.514. windows_net
   515. 4.515. windows_permissions_ext
   516. 4.516. windows_process_exit_code_from
   517. 4.517. windows_process_extensions_async_pipes
   518. 4.518. windows_process_extensions_desktop
   519. 4.519. windows_process_extensions_force_quotes
   520. 4.520. windows_process_extensions_inherit_handles
   521. 4.521. windows_process_extensions_raw_attribute
   522. 4.522. windows_process_extensions_startupinfo
   523. 4.523. windows_stdio
   524. 4.524. windows_unix_domain_sockets
   525. 4.525. wrapping_int_impl
   526. 4.526. wrapping_next_power_of_two
   527. 4.527. write_all_vectored
   528. 4.528. wtf8_internals
   529. 4.529. yeet_desugar_details