1. The Unstable Book
  2. 1. Compiler flags
    1. 1.1. emit_stack_sizes
    2. 1.2. linker_flavor
    3. 1.3. profile
  3. 2. Language features
    1. 2.1. aarch64_target_feature
    2. 2.2. abi_amdgpu_kernel
    3. 2.3. abi_msp430_interrupt
    4. 2.4. abi_ptx
    5. 2.5. abi_thiscall
    6. 2.6. abi_unadjusted
    7. 2.7. abi_vectorcall
    8. 2.8. abi_x86_interrupt
    9. 2.9. alloc_error_handler
    10. 2.10. allocator_internals
    11. 2.11. allow_fail
    12. 2.12. allow_internal_unsafe
    13. 2.13. allow_internal_unstable
    14. 2.14. arbitrary_self_types
    15. 2.15. arm_target_feature
    16. 2.16. asm
    17. 2.17. associated_type_defaults
    18. 2.18. async_await
    19. 2.19. avx512_target_feature
    20. 2.20. bind_by_move_pattern_guards
    21. 2.21. box_patterns
    22. 2.22. box_syntax
    23. 2.23. cfg_attr_multi
    24. 2.24. cfg_target_has_atomic
    25. 2.25. cfg_target_thread_local
    26. 2.26. cfg_target_vendor
    27. 2.27. compiler_builtins
    28. 2.28. concat_idents
    29. 2.29. const_compare_raw_pointers
    30. 2.30. const_fn
    31. 2.31. const_fn_union
    32. 2.32. const_let
    33. 2.33. const_panic
    34. 2.34. const_raw_ptr_deref
    35. 2.35. const_raw_ptr_to_usize_cast
    36. 2.36. const_transmute
    37. 2.37. crate_visibility_modifier
    38. 2.38. custom_attribute
    39. 2.39. custom_derive
    40. 2.40. custom_inner_attributes
    41. 2.41. custom_test_frameworks
    42. 2.42. decl_macro
    43. 2.43. default_type_parameter_fallback
    44. 2.44. doc_alias
    45. 2.45. doc_cfg
    46. 2.46. doc_keyword
    47. 2.47. doc_masked
    48. 2.48. doc_spotlight
    49. 2.49. dropck_eyepatch
    50. 2.50. dropck_parametricity
    51. 2.51. exclusive_range_pattern
    52. 2.52. exhaustive_integer_patterns
    53. 2.53. exhaustive_patterns
    54. 2.54. existential_type
    55. 2.55. extern_crate_self
    56. 2.56. extern_in_paths
    57. 2.57. extern_types
    58. 2.58. external_doc
    59. 2.59. format_args_nl
    60. 2.60. fundamental
    61. 2.61. generators
    62. 2.62. generic_associated_types
    63. 2.63. global_asm
    64. 2.64. hexagon_target_feature
    65. 2.65. if_while_or_patterns
    66. 2.66. impl_trait_in_bindings
    67. 2.67. in_band_lifetimes
    68. 2.68. infer_static_outlives_requirements
    69. 2.69. intrinsics
    70. 2.70. irrefutable_let_patterns
    71. 2.71. label_break_value
    72. 2.72. lang_items
    73. 2.73. link_args
    74. 2.74. link_cfg
    75. 2.75. link_llvm_intrinsics
    76. 2.76. linkage
    77. 2.77. lint_reasons
    78. 2.78. log_syntax
    79. 2.79. macros_in_extern
    80. 2.80. main
    81. 2.81. marker_trait_attr
    82. 2.82. mips_target_feature
    83. 2.83. mmx_target_feature
    84. 2.84. naked_functions
    85. 2.85. needs_allocator
    86. 2.86. needs_panic_runtime
    87. 2.87. never_type
    88. 2.88. nll
    89. 2.89. no_core
    90. 2.90. no_debug
    91. 2.91. non_ascii_idents
    92. 2.92. non_exhaustive
    93. 2.93. omit_gdb_pretty_printer_section
    94. 2.94. on_unimplemented
    95. 2.95. optin_builtin_traits
    96. 2.96. overlapping_marker_traits
    97. 2.97. panic_runtime
    98. 2.98. platform_intrinsics
    99. 2.99. plugin
    100. 2.100. plugin_registrar
    101. 2.101. powerpc_target_feature
    102. 2.102. prelude_import
    103. 2.103. proc_macro_hygiene
    104. 2.104. profiler_runtime
    105. 2.105. quote
    106. 2.106. repr_packed
    107. 2.107. repr_simd
    108. 2.108. repr128
    109. 2.109. rustc_attrs
    110. 2.110. rustc_const_unstable
    111. 2.111. rustc_diagnostic_macros
    112. 2.112. sanitizer_runtime
    113. 2.113. simd_ffi
    114. 2.114. slice_patterns
    115. 2.115. specialization
    116. 2.116. sse4a_target_feature
    117. 2.117. staged_api
    118. 2.118. start
    119. 2.119. static_nobundle
    120. 2.120. stmt_expr_attributes
    121. 2.121. structural_match
    122. 2.122. tbm_target_feature
    123. 2.123. test_2018_feature
    124. 2.124. thread_local
    125. 2.125. trace_macros
    126. 2.126. trait_alias
    127. 2.127. trivial_bounds
    128. 2.128. try_blocks
    129. 2.129. type_ascription
    130. 2.130. unboxed_closures
    131. 2.131. underscore_const_names
    132. 2.132. underscore_imports
    133. 2.133. unrestricted_attribute_tokens
    134. 2.134. unsized_locals
    135. 2.135. unsized_tuple_coercion
    136. 2.136. untagged_unions
    137. 2.137. unwind_attributes
    138. 2.138. wasm_target_feature
  4. 3. Library Features
    1. 3.1. align_offset
    2. 3.2. alloc
    3. 3.3. alloc_error_hook
    4. 3.4. alloc_internals
    5. 3.5. alloc_layout_extra
    6. 3.6. allocator_api
    7. 3.7. array_error_internals
    8. 3.8. as_cell
    9. 3.9. atomic_min_max
    10. 3.10. await_macro
    11. 3.11. box_into_raw_non_null
    12. 3.12. bufreader_buffer
    13. 3.13. bufreader_seek_relative
    14. 3.14. c_variadic
    15. 3.15. c_void_variant
    16. 3.16. cell_update
    17. 3.17. char_error_internals
    18. 3.18. coerce_unsized
    19. 3.19. compiler_builtins_lib
    20. 3.20. concat_idents_macro
    21. 3.21. const_cstr_unchecked
    22. 3.22. const_int_conversion
    23. 3.23. const_int_ops
    24. 3.24. const_int_overflowing
    25. 3.25. const_int_rotate
    26. 3.26. const_int_sign
    27. 3.27. const_int_wrapping
    28. 3.28. const_ip
    29. 3.29. const_needs_drop
    30. 3.30. const_slice_len
    31. 3.31. const_str_as_bytes
    32. 3.32. const_str_len
    33. 3.33. const_string_new
    34. 3.34. const_type_id
    35. 3.35. const_vec_new
    36. 3.36. convert_id
    37. 3.37. copy_within
    38. 3.38. copysign
    39. 3.39. core_intrinsics
    40. 3.40. core_panic
    41. 3.41. core_panic_info
    42. 3.42. core_private_bignum
    43. 3.43. core_private_diy_float
    44. 3.44. deadline_api
    45. 3.45. dec2flt
    46. 3.46. derive_clone_copy
    47. 3.47. derive_eq
    48. 3.48. dispatch_from_dyn
    49. 3.49. drain_filter
    50. 3.50. duration_as_u128
    51. 3.51. duration_float
    52. 3.52. error_type_id
    53. 3.53. euclidean_division
    54. 3.54. exact_size_is_empty
    55. 3.55. extra_log_consts
    56. 3.56. fd
    57. 3.57. fd_read
    58. 3.58. fixed_size_array
    59. 3.59. flt2dec
    60. 3.60. fmt_internals
    61. 3.61. fn_traits
    62. 3.62. fnbox
    63. 3.63. forget_unsized
    64. 3.64. futures_api
    65. 3.65. gen_future
    66. 3.66. generator_trait
    67. 3.67. get_type_id
    68. 3.68. hash_raw_entry
    69. 3.69. hashmap_internals
    70. 3.70. inner_deref
    71. 3.71. int_error_internals
    72. 3.72. int_error_matching
    73. 3.73. integer_atomics
    74. 3.74. ip
    75. 3.75. iter_unfold
    76. 3.76. libstd_io_internals
    77. 3.77. libstd_sys_internals
    78. 3.78. libstd_thread_internals
    79. 3.79. linked_list_extras
    80. 3.80. manually_drop_take
    81. 3.81. map_entry_replace
    82. 3.82. map_get_key_value
    83. 3.83. maybe_uninit
    84. 3.84. mpsc_select
    85. 3.85. n16
    86. 3.86. no_more_cas
    87. 3.87. no_panic_pow
    88. 3.88. once_is_completed
    89. 3.89. once_poison
    90. 3.90. option_xor
    91. 3.91. panic_abort
    92. 3.92. panic_info_message
    93. 3.93. panic_internals
    94. 3.94. panic_unwind
    95. 3.95. pattern
    96. 3.96. pin
    97. 3.97. print_internals
    98. 3.98. proc_macro_def_site
    99. 3.99. proc_macro_diagnostic
    100. 3.100. proc_macro_internals
    101. 3.101. proc_macro_quote
    102. 3.102. proc_macro_raw_ident
    103. 3.103. proc_macro_span
    104. 3.104. process_exitcode_placeholder
    105. 3.105. process_internals
    106. 3.106. profiler_runtime_lib
    107. 3.107. ptr_internals
    108. 3.108. ptr_offset_from
    109. 3.109. ptr_wrapping_offset_from
    110. 3.110. range_contains
    111. 3.111. range_is_empty
    112. 3.112. raw
    113. 3.113. raw_vec_internals
    114. 3.114. read_initializer
    115. 3.115. refcell_map_split
    116. 3.116. refcell_replace_swap
    117. 3.117. repeat_generic_slice
    118. 3.118. result_map_or_else
    119. 3.119. reverse_bits
    120. 3.120. rt
    121. 3.121. rustc_private
    122. 3.122. rustc_stack_internals
    123. 3.123. rw_exact_all_at
    124. 3.124. sanitizer_runtime_lib
    125. 3.125. set_stdio
    126. 3.126. shrink_to
    127. 3.127. slice_concat_ext
    128. 3.128. slice_index_methods
    129. 3.129. slice_internals
    130. 3.130. slice_partition_dedup
    131. 3.131. slice_sort_by_cached_key
    132. 3.132. sort_internals
    133. 3.133. split_ascii_whitespace
    134. 3.134. std_internals
    135. 3.135. stdsimd
    136. 3.136. step_trait
    137. 3.137. str_escape
    138. 3.138. str_internals
    139. 3.139. termination_trait_lib
    140. 3.140. test
    141. 3.141. thread_local_internals
    142. 3.142. thread_spawn_unchecked
    143. 3.143. time_checked_add
    144. 3.144. toowned_clone_into
    145. 3.145. transpose_result
    146. 3.146. trusted_len
    147. 3.147. try_from
    148. 3.148. try_reserve
    149. 3.149. try_trait
    150. 3.150. unicode_internals
    151. 3.151. unicode_version
    152. 3.152. unsize
    153. 3.153. update_panic_count
    154. 3.154. vec_remove_item
    155. 3.155. vec_resize_default
    156. 3.156. vec_resize_with
    157. 3.157. wait_timeout_until
    158. 3.158. wait_until
    159. 3.159. windows_c
    160. 3.160. windows_file_type_ext
    161. 3.161. windows_handle
    162. 3.162. windows_net
    163. 3.163. windows_stdio
    164. 3.164. wrapping_int_impl
    165. 3.165. wrapping_next_power_of_two

Compiler flags