rust_features.md

Name	Area	Stablity	Since version
abi_sysv64	lang	unstable	1.13.0
abi_vectorcall	lang	unstable	1.7.0
addr_parse_error_error	lib	stable	1.4.0
advanced_slice_patterns	lang	unstable	1.0.0
alloc	lib	unstable	None
alloc_jemalloc	lib	unstable	None
alloc_system	lib	unstable	None
allocator	lang	unstable	1.0.0
allow_internal_unstable	lang	unstable	1.0.0
append	lib	stable	1.4.0
arc_counts	lib	unstable	None
arc_unique	lib	stable	1.4.0
arc_weak	lib	stable	1.4.0
array_borrow	lib	stable	1.4.0
array_default	lib	stable	1.4.0
as_unsafe_cell	lib	unstable	None
ascii	lib	stable	1.9.0
asm	lang	unstable	1.0.0
assert_ne	lib	stable	1.12.0
associated_consts	lang	unstable	1.0.0
associated_type_defaults	lang	unstable	1.2.0
associated_types	lang	stable	1.0.0
atomic_access	lib	unstable	None
atomic_debug	lib	stable	1.3.0
attr_literals	lang	unstable	1.13.0
augmented_assignments	lang	stable	1.8.0
binary_heap_append	lib	stable	1.11.0
binary_heap_extras	lib	unstable	None
binary_heap_extras_15	lib	stable	1.5.0
binary_heap_peek_mut	lib	stable	1.12.0
binaryheap_debug	lib	stable	1.4.0
borrow_state	lib	unstable	None
box_error	lib	stable	1.7.0
box_heap	lib	unstable	None
box_patterns	lang	unstable	1.0.0
box_raw	lib	stable	1.4.0
box_slice_clone	lib	stable	1.3.0
box_str	lib	stable	1.4.0
box_syntax	lang	unstable	1.0.0
braced_empty_structs	lang	stable	1.8.0
btree_append	lib	stable	1.11.0
btree_drop	lib	stable	1.7.0
btree_range	lib	unstable	None
btree_split_off	lib	stable	1.11.0
build_hasher	lib	stable	1.7.0
c_void_variant	lib	unstable	None
catch_unwind	lib	stable	1.9.0
cell_as_ptr	lib	stable	1.12.0
cell_eq	lib	stable	1.2.0
cell_extras	lib	unstable	None
cell_from	lib	stable	1.12.0
cell_get_mut	lib	stable	1.11.0
cell_map	lib	stable	1.8.0
cell_ord	lib	stable	1.10.0
cfg_target_feature	lang	unstable	1.4.0
cfg_target_has_atomic	lang	unstable	1.9.0
cfg_target_thread_local	lang	unstable	1.7.0
cfg_target_vendor	lang	unstable	1.5.0
chain_bufread	lib	stable	1.9.0
char_convert	lib	stable	1.13.0
char_escape_debug	lib	unstable	None
char_from_unchecked	lib	stable	1.5.0
clone_from_slice	lib	stable	1.7.0
cmp_os_str	lib	stable	1.8.0
cmp_path	lib	stable	1.8.0
coerce_unsized	lib	unstable	None
collection_placement	lib	unstable	None
collections	lib	unstable	None
collections_bound	lib	unstable	None
collections_range	lib	unstable	None
compiler_builtins	lang	unstable	1.13.0
compiler_builtins_lib	lib	unstable	None
concat_idents	lang	unstable	1.0.0
concat_idents_macro	lib	unstable	None
condvar_default	lib	stable	1.9.0
conservative_impl_trait	lang	unstable	1.12.0
const_fn	lang	unstable	1.2.0
const_indexing	lang	unstable	1.4.0
copy_from_slice	lib	stable	1.9.0
core	lib	stable	1.6.0
core_char	lib	stable	1.2.0
core_char_ext	lib	unstable	None
core_float	lib	unstable	None
core_impl_debug	lib	stable	1.9.0
core_intrinsics	lib	unstable	None
core_panic	lib	unstable	None
core_prelude	lib	stable	1.4.0
core_private_bignum	lib	unstable	None
core_private_diy_float	lib	unstable	None
core_slice_ext	lib	unstable	None
core_str_ext	lib	unstable	None
cow_add	lib	stable	1.13.0
cow_from_path	lib	stable	1.6.0
cow_from_vec	lib	stable	1.7.0
cow_os_str_as_ref_path	lib	stable	1.8.0
cow_str_from_iter	lib	stable	1.12.0
cstr_borrow	lib	stable	1.3.0
cstr_debug	lib	stable	1.3.0
cstr_default	lib	stable	1.10.0
cstr_from_bytes	lib	stable	1.10.0
cstr_memory	lib	stable	1.4.0
cstr_to_str	lib	stable	1.4.0
cstring_asref	lib	stable	1.7.0
cstring_drop	lib	stable	1.13.0
cstring_into	lib	stable	1.7.0
cursor_box_slice	lib	stable	1.5.0
custom_attribute	lang	unstable	1.0.0
custom_derive	lang	unstable	1.0.0
debug_btree_map	lib	stable	1.12.0
debug_builders	lib	stable	1.2.0
debug_hash_map	lib	stable	1.12.0
dec2flt	lib	unstable	None
decode_utf16	lib	stable	1.9.0
decode_utf8	lib	unstable	None
dedup_by	lib	unstable	None
default	lib	stable	1.11.0
default_type_parameter_fallback	lang	unstable	1.3.0
default_type_params	lang	stable	1.0.0
deg_rad_conversions	lib	stable	1.7.0
deprecated	lang	stable	1.9.0
deque_extras	lib	unstable	None
deque_extras_15	lib	stable	1.5.0
derefmut_for_string	lib	stable	1.2.0
derive_clone_copy	lib	unstable	None
derive_eq	lib	unstable	None
dir_builder	lib	stable	1.6.0
dir_entry_debug	lib	stable	1.13.0
dir_entry_ext	lib	stable	1.1.0
discriminant_value	lib	unstable	None
dotdot_in_tuple_patterns	lang	unstable	1.10.0
double_ended_skip_iterator	lib	stable	1.8.0
downgraded_weak	lib	stable	1.10.0
drain	lib	stable	1.6.0
drop_in_place	lib	stable	1.8.0
drop_types_in_const	lang	unstable	1.9.0
dropck_eyepatch	lang	unstable	1.10.0
dropck_parametricity	lang	unstable	1.3.0
duration	lib	stable	1.3.0
duration_checked_ops	lib	unstable	None
encode_utf16	lib	stable	1.8.0
enumset	lib	unstable	None
env	lib	stable	1.0.0
env_iterators	lib	stable	1.11.0
error_downcast	lib	stable	1.3.0
error_type_id	lib	unstable	None
exact_size_escape	lib	stable	1.11.0
exact_size_is_empty	lib	unstable	None
exit_status_from	lib	stable	1.12.0
expand_open_options2	lib	stable	1.9.0
extend_ref	lib	stable	1.2.0
extend_string	lib	stable	1.4.0
extended_compare_and_swap	lib	stable	1.10.0
f32_deg_rad_conversions	lib	stable	1.7.0
fd	lib	unstable	None
fd_read	lib	unstable	None
field_init_shorthand	lang	unstable	1.14.0
file_offset	lib	unstable	None
file_try_clone	lib	stable	1.9.0
file_type	lib	stable	1.1.0
file_type_ext	lib	stable	1.5.0
fixed_size_array	lib	unstable	None
float_extras	lib	unstable	None
flt2dec	lib	unstable	None
fmt_error	lib	stable	1.11.0
fmt_flags	lib	stable	1.5.0
fmt_flags_align	lib	unstable	None
fmt_internals	lib	unstable	None
fmt_write_blanket_impl	lib	stable	1.4.0
fmt_write_char	lib	stable	1.1.0
fn_once_output	lib	stable	1.12.0
fn_traits	lib	unstable	None
fnbox	lib	unstable	None
fnptr_impls	lib	stable	1.4.0
formatter_write	lib	stable	1.2.0
from_for_ptrs	lib	stable	1.6.0
from_raw_os	lib	stable	1.1.0
from_slice_v4	lib	stable	1.9.0
fs_canonicalize	lib	stable	1.5.0
fs_ext	lib	stable	1.1.0
fs_time	lib	stable	1.10.0
fundamental	lang	unstable	1.0.0
fused	lib	unstable	None
future_atomic_orderings	lib	unstable	None
generic_param_attrs	lang	unstable	1.11.0
get_type_id	lib	unstable	None
globs	lang	stable	1.0.0
hash_extend_copy	lib	stable	1.4.0
hash_slice	lib	stable	1.3.0
hasher_write	lib	stable	1.3.0
hashmap_build_hasher	lib	stable	1.7.0
hashmap_default_hasher	lib	stable	1.13.0
hashmap_public_hasher	lib	stable	1.9.0
heap_api	lib	unstable	None
if_let	lang	stable	1.0.0
import_shadowing	lang	unstable	1.0.0
inclusive_range	lib	unstable	None
inclusive_range_syntax	lang	unstable	1.7.0
insert_str	lib	unstable	None
int_error_internals	lib	unstable	None
integer_atomics	lib	unstable	None
into_raw_os	lib	stable	1.4.0
intrinsics	lang	unstable	1.0.0
io	lib	unstable	None
io_error_from_errorkind	lib	stable	1.14.0
io_error_inner	lib	stable	1.3.0
io_error_internals	lib	unstable	None
io_invalid_data	lib	stable	1.2.0
io_take_into_inner	lib	unstable	None
ip	lib	unstable	None
ip_17	lib	stable	1.7.0
ip_addr	lib	stable	1.7.0
ip_shared	lib	stable	1.12.0
ip_u32	lib	stable	1.1.0
ipaddr_checker	lib	unstable	None
ipv6_from_octets	lib	stable	1.9.0
ipv6_to_octets	lib	stable	1.12.0
is_char_boundary	lib	stable	1.9.0
issue_5723_bootstrap	lang	stable	1.0.0
item_like_imports	lang	unstable	1.13.0
iter_arith	lib	stable	1.11.0
iter_arith_traits	lib	stable	1.12.0
iter_cloned	lib	stable	1.1.0
iter_cmp_by_key	lib	stable	1.6.0
iter_empty	lib	stable	1.2.0
iter_max_by	lib	unstable	None
iter_min_by	lib	unstable	None
iter_once	lib	stable	1.2.0
iter_order	lib	stable	1.5.0
iter_to_slice	lib	stable	1.4.0
lang_items	lang	unstable	1.0.0
libstd_io_internals	lib	unstable	None
libstd_sys_internals	lib	unstable	None
libstd_thread_internals	lib	unstable	None
link_args	lang	unstable	1.0.0
link_llvm_intrinsics	lang	unstable	1.0.0
linkage	lang	unstable	1.0.0
linked_from	lang	unstable	1.3.0
linked_list_contains	lib	stable	1.12.0
linked_list_extras	lib	unstable	None
log_syntax	lang	unstable	1.0.0
lookup_host	lib	unstable	None
lossless_prim_conv	lib	stable	1.5.0
macro_reexport	lang	unstable	1.0.0
macro_rules	lang	stable	1.0.0
main	lang	unstable	1.0.0
managed_boxes	lang	unstable	1.0.0
map_entry_keys	lib	stable	1.10.0
map_entry_recover_keys	lib	unstable	None
map_entry_recover_keys2	lib	stable	1.12.0
map_values_mut	lib	stable	1.10.0
metadata_ext	lib	stable	1.1.0
metadata_ext2	lib	stable	1.8.0
mpsc_debug	lib	stable	1.7.0
mpsc_recv_timeout	lib	stable	1.12.0
mpsc_select	lib	unstable	None
mut_slice_default	lib	stable	1.5.0
mutex_default	lib	stable	1.9.0
mutex_get_mut	lib	stable	1.6.0
mutex_into_inner	lib	stable	1.6.0
naked_functions	lang	unstable	1.9.0
needs_allocator	lang	unstable	1.4.0
needs_panic_runtime	lang	unstable	1.10.0
negate_unsigned	lang	unstable	1.0.0
net2_mutators	lib	stable	1.9.0
never_type	lang	unstable	1.13.0
never_type_impls	lib	unstable	None
no_core	lang	unstable	1.3.0
no_debug	lang	unstable	1.5.0
no_panic_abs	lib	stable	1.13.0
no_std	lang	stable	1.6.0
non_ascii_idents	lang	unstable	1.0.0
nonzero	lib	unstable	None
num_wrapping	lib	stable	1.2.0
omit_gdb_pretty_printer_section	lang	unstable	1.5.0
on_unimplemented	lang	unstable	1.0.0
once_new	lib	stable	1.2.0
once_poison	lib	unstable	None
oom	lib	unstable	None
op_assign_traits	lib	stable	1.8.0
open_options_ext	lib	stable	1.10.0
opt_out_copy	lang	unstable	1.0.0
optin_builtin_traits	lang	unstable	1.0.0
option_from	lib	stable	1.12.0
option_iter	lib	stable	1.4.0
ordering_chaining	lib	unstable	None
os	lib	stable	1.0.0
osstring_default	lib	stable	1.9.0
osstring_simple_functions	lib	stable	1.9.0
panic_abort	lib	unstable	None
panic_hooks	lib	stable	1.10.0
panic_runtime	lang	unstable	1.10.0
panic_unwind	lib	unstable	None
park_timeout	lib	stable	1.4.0
partialeq_path	lib	stable	1.6.0
path_components_debug	lib	stable	1.13.0
path_ext	lib	stable	1.5.0
path_into_iter	lib	stable	1.6.0
path_iter_debug	lib	stable	1.13.0
path_strip_prefix	lib	stable	1.7.0
pattern	lib	unstable	None
placement_in	lib	unstable	None
placement_in_syntax	lang	unstable	1.0.0
placement_new_protocol	lib	unstable	None
platform_intrinsics	lang	unstable	1.4.0
plugin	lang	unstable	1.0.0
plugin_registrar	lang	unstable	1.0.0
prelude_import	lang	unstable	1.2.0
print	lib	unstable	None
proc_macro	lang	unstable	1.13.0
proc_macro_internals	lib	unstable	None
proc_macro_lib	lib	unstable	None
process	lib	stable	1.0.0
process_exec	lib	unstable	None
process_exec2	lib	stable	1.9.0
process_extensions	lib	stable	1.2.0
process_id	lib	stable	1.3.0
process_output_debug	lib	stable	1.7.0
pthread_t	lib	stable	1.8.0
ptr_as_ref	lib	stable	1.9.0
ptr_eq	lib	unstable	None
pub_restricted	lang	unstable	1.9.0
pushpop_unsafe	lang	unstable	1.2.0
quad_precision_float	lang	unstable	1.0.0
question_mark	lang	stable	1.14.0
question_mark_carrier	lib	unstable	None
quote	lang	unstable	1.0.0
rand	lib	unstable	None
range_contains	lib	unstable	None
raw	lib	unstable	None
raw_ext	lib	stable	1.1.0
raw_os	lib	stable	1.1.0
rc_counts	lib	unstable	None
rc_unique	lib	stable	1.4.0
rc_weak	lib	stable	1.4.0
rc_would_unwrap	lib	unstable	None
read_exact	lib	stable	1.6.0
receiver_into_iter	lib	stable	1.1.0
receiver_try_iter	lib	unstable	None
reflect	lang	unstable	1.0.0
reflect_marker	lib	unstable	None
relaxed_adts	lang	unstable	1.12.0
rename_connect_to_join	lib	stable	1.3.0
repeat_str	lib	unstable	None
repr_simd	lang	unstable	1.4.0
result_expect	lib	stable	1.4.0
result_iter	lib	stable	1.4.0
result_unwrap_or_default	lib	unstable	None
resume_unwind	lib	stable	1.9.0
rt	lib	unstable	None
rust1	lib	stable	1.0.0
rustc_attrs	lang	unstable	1.0.0
rustc_diagnostic_macros	lang	unstable	1.0.0
rustc_private	lib	unstable	None
rustdoc	lib	unstable	None
rw_lock_default	lib	stable	1.9.0
rwlock_get_mut	lib	stable	1.6.0
rwlock_into_inner	lib	stable	1.6.0
set_permissions	lib	stable	1.1.0
set_recovery	lib	stable	1.9.0
set_stdio	lib	unstable	None
shared	lib	unstable	None
simd	lang	unstable	1.0.0
simd_ffi	lang	unstable	1.0.0
sip_hash_13	lib	unstable	None
slice_binary_search_by_key	lib	stable	1.10.0
slice_concat_ext	lib	unstable	None
slice_iter_as_ref	lib	stable	1.12.0
slice_patterns	lang	unstable	1.0.0
slice_sort_by_key	lib	stable	1.7.0
slice_splits	lib	stable	1.5.0
slice_to_socket_addrs	lib	stable	1.8.0
slicing_syntax	lang	stable	1.0.0
smart_ptr_as_ref	lib	stable	1.5.0
sockaddr_checker	lib	unstable	None
sockaddr_setters	lib	stable	1.9.0
socket_addr_from_str	lib	stable	1.5.0
socket_timeout	lib	stable	1.4.0
specialization	lang	unstable	1.7.0
split_off	lib	stable	1.4.0
split_whitespace	lib	stable	1.1.0
staged_api	lang	unstable	1.0.0
start	lang	unstable	1.0.0
static_in_const	lang	unstable	1.13.0
static_recursion	lang	unstable	1.3.0
std_panic	lib	stable	1.9.0
step_by	lib	unstable	None
step_trait	lib	unstable	None
stmt_expr_attributes	lang	unstable	1.6.0
str_escape	lib	unstable	None
str_internals	lib	unstable	None
str_match_indices	lib	stable	1.5.0
str_matches	lib	stable	1.2.0
str_parse_error	lib	stable	1.5.0
str_parse_error2	lib	stable	1.8.0
str_replacen	lib	unstable	None
str_slice_mut	lib	stable	1.5.0
str_split_at	lib	stable	1.4.0
str_to_string_specialization	lib	stable	1.9.0
string_as_str	lib	stable	1.7.0
string_box_error	lib	stable	1.7.0
string_from_cow_str	lib	stable	1.14.0
stringaddassign	lib	stable	1.12.0
strip_prefix	lib	stable	1.7.0
struct_inherit	lang	unstable	1.0.0
struct_variant	lang	stable	1.0.0
structural_match	lang	unstable	1.8.0
symlink	lib	stable	1.1.0
symlink_metadata	lib	stable	1.1.0
sync_poison	lib	stable	1.2.0
test	lib	unstable	None
test_accepted_feature	lang	stable	1.0.0
test_removed_feature	lang	unstable	1.0.0
thread_extensions	lib	stable	1.9.0
thread_id	lib	unstable	None
thread_local	lang	unstable	1.0.0
thread_local_internals	lib	unstable	None
thread_local_state	lib	unstable	None
thread_sleep	lib	stable	1.4.0
time	lib	stable	1.3.0
time2	lib	stable	1.8.0
time_augmented_assignment	lib	stable	1.9.0
trace_macros	lang	unstable	1.0.0
try_borrow	lib	stable	1.13.0
try_from	lib	unstable	None
tuple_indexing	lang	stable	1.0.0
type_ascription	lang	unstable	1.6.0
type_macros	lang	stable	1.13.0
unboxed_closures	lang	unstable	1.0.0
unicode	lib	unstable	None
unicode_case_mapping	lib	stable	1.2.0
unique	lib	unstable	None
unix_socket	lib	stable	1.10.0
unmarked_api	lang	unstable	1.0.0
unsafe_cell_default	lib	stable	1.9.0
unsafe_no_drop_flag	lang	unstable	1.0.0
unsize	lib	unstable	None
untagged_unions	lang	unstable	1.13.0
unwind_attributes	lang	unstable	1.4.0
unwind_safe_atomic_refs	lib	stable	1.14.0
unwind_safe_lock_refs	lib	stable	1.12.0
update_panic_count	lib	unstable	None
utf8_error	lib	stable	1.5.0
vec_as_mut	lib	stable	1.5.0
vec_as_slice	lib	stable	1.7.0
vec_deque_contains	lib	stable	1.12.0
vec_deque_retain	lib	stable	1.4.0
vec_extend_from_slice	lib	stable	1.6.0
vec_from_cow_slice	lib	stable	1.14.0
vec_into_iter_as_slice	lib	unstable	None
vec_into_iter_clone	lib	stable	1.8.0
vec_intoiter_debug	lib	stable	1.13.0
vec_resize	lib	stable	1.5.0
vecdeque_vec_conversions	lib	stable	1.10.0
visible_private_types	lang	unstable	1.0.0
volatile	lib	stable	1.9.0
wait_timeout	lib	stable	1.5.0
while_let	lang	stable	1.0.0
windows_c	lib	unstable	None
windows_handle	lib	unstable	None
windows_net	lib	unstable	None
windows_stdio	lib	unstable	None
wrapping	lib	stable	1.7.0
wrapping_display	lib	stable	1.10.0
wrapping_div	lib	stable	1.3.0
wrapping_fmt	lib	stable	1.11.0
wrapping_impls	lib	stable	1.7.0
wrapping_neg	lib	stable	1.10.0
zero_one	lib	unstable	None