Trait boolean_enums::lstd::prelude::v1::Sync

#[lang = "sync"]
pub unsafe auto trait Sync { }

Types for which it is safe to share references between threads.

This trait is automatically implemented when the compiler determines it's appropriate.

The precise definition is: a type T is Sync if and only if &T is Send. In other words, if there is no possibility of undefined behavior (including data races) when passing &T references between threads.

As one would expect, primitive types like u8 and f64 are all Sync, and so are simple aggregate types containing them, like tuples, structs and enums. More examples of basic Sync types include "immutable" types like &T, and those with simple inherited mutability, such as Box<T>, Vec<T> and most other collection types. (Generic parameters need to be Sync for their container to be Sync.)

A somewhat surprising consequence of the definition is that &mut T is Sync (if T is Sync) even though it seems like that might provide unsynchronized mutation. The trick is that a mutable reference behind a shared reference (that is, & &mut T) becomes read-only, as if it were a & &T. Hence there is no risk of a data race.

Types that are not Sync are those that have "interior mutability" in a non-thread-safe form, such as cell::Cell and cell::RefCell. These types allow for mutation of their contents even through an immutable, shared reference. For example the set method on Cell<T> takes &self, so it requires only a shared reference &Cell<T>. The method performs no synchronization, thus Cell cannot be Sync.

Another example of a non-Sync type is the reference-counting pointer rc::Rc. Given any reference &Rc<T>, you can clone a new Rc<T>, modifying the reference counts in a non-atomic way.

For cases when one does need thread-safe interior mutability, Rust provides atomic data types, as well as explicit locking via sync::Mutex and sync::RwLock. These types ensure that any mutation cannot cause data races, hence the types are Sync. Likewise, sync::Arc provides a thread-safe analogue of Rc.

Any types with interior mutability must also use the cell::UnsafeCell wrapper around the value(s) which can be mutated through a shared reference. Failing to doing this is undefined behavior. For example, transmute-ing from &T to &mut T is invalid.

See the Nomicon for more details about Sync.

Implementations on Foreign Types

impl Sync for Argument

impl Sync for FormatSpec

impl Sync for Alignment

impl Sync for Count

impl Sync for Position

impl<T> !Sync for *mut T where     T: ?Sized,

impl<T> !Sync for *const T where     T: ?Sized,

impl Sync for isize

impl Sync for i8

impl Sync for i16

impl Sync for i32

impl Sync for i64

impl Sync for i128

impl Sync for usize

impl Sync for u8

impl Sync for u16

impl Sync for u32

impl Sync for u64

impl Sync for u128

impl Sync for f32

impl Sync for f64

impl Sync for f32

impl Sync for f64

impl Sync for char

impl Sync for str

impl Sync for str

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Implementors

impl !Sync for ArgsOs

impl !Sync for Args

impl !Sync for LocalWaker

impl Sync for boolean_enums::lstd::sync::Once

impl Sync for AtomicIsize

impl Sync for Waker

impl Sync for AtomicUsize

impl Sync for AtomicBool

impl Sync for AtomicI16

impl Sync for AtomicI32

impl Sync for AtomicI64

impl Sync for AtomicI8

impl Sync for AtomicU16

impl Sync for AtomicU32

impl Sync for AtomicU64

impl Sync for AtomicU8

impl<'_, T> Sync for boolean_enums::lstd::slice::Iter<'_, T> where     T: Sync,

impl<'_, T> Sync for boolean_enums::lstd::slice::IterMut<'_, T> where     T: Sync,

impl<'a> Sync for boolean_enums::lstd::string::Drain<'a>

impl<'a, T> Sync for boolean_enums::lstd::collections::linked_list::Iter<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::linked_list::IterMut<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::vec_deque::Drain<'a, T> where     T: Sync,

impl<'a, T> Sync for MutexGuard<'a, T> where     T: Sync + ?Sized,

impl<'a, T> Sync for RwLockReadGuard<'a, T> where     T: Sync + ?Sized,

impl<'a, T> Sync for RwLockWriteGuard<'a, T> where     T: Sync + ?Sized,

impl<'a, T> Sync for boolean_enums::lstd::vec::Drain<'a, T> where     T: Sync,

impl<T> !Sync for Sender<T>

impl<T> !Sync for Receiver<T>

impl<T> !Sync for Cell<T> where     T: ?Sized,

impl<T> !Sync for RefCell<T> where     T: ?Sized,

impl<T> !Sync for UnsafeCell<T> where     T: ?Sized,

impl<T> !Sync for NonNull<T> where     T: ?Sized,

NonNull pointers are not Sync because the data they reference may be aliased.

impl<T> !Sync for Rc<T> where     T: ?Sized,

impl<T> !Sync for boolean_enums::lstd::rc::Weak<T> where     T: ?Sized,

impl<T> Sync for boolean_enums::lstd::thread::__OsLocalKeyInner<T>

impl<T> Sync for JoinHandle<T>

impl<T> Sync for AtomicPtr<T>

impl<T> Sync for LinkedList<T> where     T: Sync,

impl<T> Sync for Arc<T> where     T: Send + Sync + ?Sized,

impl<T> Sync for Mutex<T> where     T: Send + ?Sized,

impl<T> Sync for RwLock<T> where     T: Send + Sync + ?Sized,

impl<T> Sync for boolean_enums::lstd::sync::Weak<T> where     T: Send + Sync + ?Sized,

impl<T> Sync for boolean_enums::lstd::vec::IntoIter<T> where     T: Sync,

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Auto implementors

impl !Sync for Vars

impl !Sync for VarsOs

impl !Sync for Command

impl !Sync for Select

impl !Sync for Excess

impl !Sync for TraitObject

impl Sync for Builder

impl Sync for ThreadId

impl Sync for Thread

impl Sync for AccessError

impl Sync for boolean_enums::lstd::ascii::EscapeDefault

impl Sync for RandomState

impl Sync for DefaultHasher

impl Sync for CollectionAllocErr

impl Sync for VarError

impl Sync for JoinPathsError

impl Sync for OsString

impl Sync for IntoStringError

impl Sync for CStr

impl Sync for FromBytesWithNulError

impl Sync for OsStr

impl Sync for c_void

impl Sync for NulError

impl Sync for CString

impl Sync for File

impl Sync for Metadata

impl Sync for ReadDir

impl Sync for DirEntry

impl Sync for OpenOptions

impl Sync for Permissions

impl Sync for FileType

impl Sync for DirBuilder

impl Sync for Initializer

impl Sync for SeekFrom

impl Sync for boolean_enums::lstd::io::Repeat

impl Sync for ErrorKind

impl Sync for Stderr

impl Sync for Stdout

impl Sync for boolean_enums::lstd::io::Error

impl Sync for boolean_enums::lstd::io::Empty

impl Sync for Sink

impl Sync for Stdin

impl Sync for Shutdown

impl Sync for IpAddr

impl Sync for TcpListener

impl Sync for TcpStream

impl Sync for UdpSocket

impl Sync for boolean_enums::lstd::net::SocketAddr

impl Sync for AddrParseError

impl Sync for NonZeroUsize

impl Sync for ParseIntError

impl Sync for FpCategory

impl Sync for TryFromIntError

impl Sync for ParseFloatError

impl Sync for stat

impl Sync for boolean_enums::lstd::os::unix::net::SocketAddr

impl Sync for UnixStream

impl Sync for UnixListener

impl Sync for UnixDatagram

impl Sync for PathBuf

impl Sync for Path

impl Sync for StripPrefixError

impl Sync for Child

impl Sync for ChildStdin

impl Sync for ChildStdout

impl Sync for ChildStderr

impl Sync for Output

impl Sync for Stdio

impl Sync for ExitStatus

impl Sync for ExitCode

impl Sync for RecvError

impl Sync for TryRecvError

impl Sync for RecvTimeoutError

impl Sync for Condvar

impl Sync for boolean_enums::lstd::sync::atomic::Ordering

impl Sync for BarrierWaitResult

impl Sync for Barrier

impl Sync for OnceState

impl Sync for WaitTimeoutResult

impl Sync for Instant

impl Sync for SystemTime

impl Sync for SystemTimeError

impl Sync for Duration

impl Sync for System

impl Sync for AllocErr

impl Sync for LayoutErr

impl Sync for CannotReallocInPlace

impl Sync for Layout

impl Sync for Global

impl Sync for NoneError

impl Sync for PhantomPinned

impl Sync for ParseError

impl Sync for BorrowError

impl Sync for BorrowMutError

impl Sync for TypeId

impl Sync for boolean_enums::lstd::cmp::Ordering

impl Sync for RangeFull

impl Sync for ParseBoolError

impl Sync for SearchStep

impl Sync for boolean_enums::lstd::fmt::Alignment

impl Sync for boolean_enums::lstd::fmt::Error

impl Sync for EscapeUnicode

impl Sync for boolean_enums::lstd::char::EscapeDefault

impl Sync for EscapeDebug

impl Sync for ToLowercase

impl Sync for ToUppercase

impl Sync for UnicodeVersion

impl Sync for CharTryFromError

impl Sync for ParseCharError

impl Sync for SipHasher

impl Sync for Ipv6MulticastScope

impl Sync for CpuidResult

impl Sync for __m128

impl Sync for __m128d

impl Sync for __m128i

impl Sync for __m256

impl Sync for __m256d

impl Sync for __m256i

impl Sync for __m512

impl Sync for __m512d

impl Sync for __m512i

impl Sync for __m64

impl Sync for DecodeUtf16Error

impl Sync for Ipv4Addr

impl Sync for Ipv6Addr

impl Sync for SocketAddrV4

impl Sync for SocketAddrV6

impl Sync for NonZeroU128

impl Sync for NonZeroU16

impl Sync for NonZeroU32

impl Sync for NonZeroU64

impl Sync for NonZeroU8

impl Sync for String

impl Sync for Utf8Error

impl Sync for FromUtf16Error

impl Sync for FromUtf8Error

impl<'a> !Sync for VaList<'a>

impl<'a> !Sync for PanicInfo<'a>

impl<'a> !Sync for Arguments<'a>

impl<'a> !Sync for Formatter<'a>

impl<'a> Sync for SplitPaths<'a>

impl<'a> Sync for StdoutLock<'a>

impl<'a> Sync for StdinLock<'a>

impl<'a> Sync for StderrLock<'a>

impl<'a> Sync for boolean_enums::lstd::net::Incoming<'a>

impl<'a> Sync for boolean_enums::lstd::os::unix::net::Incoming<'a>

impl<'a> Sync for Location<'a>

impl<'a> Sync for Prefix<'a>

impl<'a> Sync for PrefixComponent<'a>

impl<'a> Sync for Component<'a>

impl<'a> Sync for Components<'a>

impl<'a> Sync for boolean_enums::lstd::path::Iter<'a>

impl<'a> Sync for Ancestors<'a>

impl<'a> Sync for Display<'a>

impl<'a> Sync for boolean_enums::lstd::str::Lines<'a>

impl<'a> Sync for Chars<'a>

impl<'a> Sync for SplitWhitespace<'a>

impl<'a> Sync for CharIndices<'a>

impl<'a> Sync for CharSearcher<'a>

impl<'a> Sync for LinesAny<'a>

impl<'a> Sync for boolean_enums::lstd::str::Bytes<'a>

impl<'a> Sync for SplitAsciiWhitespace<'a>

impl<'a> Sync for EncodeUtf16<'a>

impl<'a, 'b> !Sync for DebugSet<'a, 'b>

impl<'a, 'b> !Sync for DebugMap<'a, 'b>

impl<'a, 'b> !Sync for DebugList<'a, 'b>

impl<'a, 'b> !Sync for DebugTuple<'a, 'b>

impl<'a, 'b> !Sync for DebugStruct<'a, 'b>

impl<'a, 'b> Sync for CharSliceSearcher<'a, 'b>

impl<'a, 'b> Sync for StrSearcher<'a, 'b>

impl<'a, A> Sync for boolean_enums::lstd::option::Iter<'a, A> where     A: Sync,

impl<'a, A> Sync for boolean_enums::lstd::option::IterMut<'a, A> where     A: Sync,

impl<'a, B: ?Sized> Sync for Cow<'a, B> where     B: Sync,     <B as ToOwned>::Owned: Sync,

impl<'a, F> Sync for CharPredicateSearcher<'a, F> where     F: MultiCharEq + Sync,

impl<'a, I> Sync for Splice<'a, I> where     I: Sync,     <I as Iterator>::Item: Sync,

impl<'a, K> Sync for boolean_enums::lstd::collections::hash_set::Drain<'a, K> where     K: Sync,

impl<'a, K> Sync for boolean_enums::lstd::collections::hash_set::Iter<'a, K> where     K: Sync,

impl<'a, K, V> !Sync for RawOccupiedEntryMut<'a, K, V>

impl<'a, K, V> !Sync for boolean_enums::lstd::collections::hash_map::VacantEntry<'a, K, V>

impl<'a, K, V> !Sync for boolean_enums::lstd::collections::hash_map::OccupiedEntry<'a, K, V>

impl<'a, K, V> !Sync for boolean_enums::lstd::collections::hash_map::Entry<'a, K, V>

impl<'a, K, V> Sync for boolean_enums::lstd::collections::btree_map::Entry<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::btree_map::Iter<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::btree_map::IterMut<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::btree_map::Keys<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::btree_map::OccupiedEntry<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::btree_map::Range<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for RangeMut<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::btree_map::VacantEntry<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::btree_map::Values<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::btree_map::ValuesMut<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::hash_map::Drain<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::hash_map::Iter<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::hash_map::IterMut<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::hash_map::Keys<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::hash_map::Values<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V> Sync for boolean_enums::lstd::collections::hash_map::ValuesMut<'a, K, V> where     K: Sync,     V: Sync,

impl<'a, K, V, S> !Sync for RawVacantEntryMut<'a, K, V, S>

impl<'a, K, V, S> !Sync for RawEntryMut<'a, K, V, S>

impl<'a, K, V, S> Sync for RawEntryBuilder<'a, K, V, S> where     K: Sync,     S: Sync,     V: Sync,

impl<'a, K, V, S> Sync for RawEntryBuilderMut<'a, K, V, S> where     K: Sync,     S: Sync,     V: Sync,

impl<'a, P> Sync for MatchIndices<'a, P> where     <P as Pattern<'a>>::Searcher: Sync,

impl<'a, P> Sync for Matches<'a, P> where     <P as Pattern<'a>>::Searcher: Sync,

impl<'a, P> Sync for RMatchIndices<'a, P> where     <P as Pattern<'a>>::Searcher: Sync,

impl<'a, P> Sync for RMatches<'a, P> where     <P as Pattern<'a>>::Searcher: Sync,

impl<'a, P> Sync for boolean_enums::lstd::str::RSplit<'a, P> where     <P as Pattern<'a>>::Searcher: Sync,

impl<'a, P> Sync for boolean_enums::lstd::str::RSplitN<'a, P> where     <P as Pattern<'a>>::Searcher: Sync,

impl<'a, P> Sync for RSplitTerminator<'a, P> where     <P as Pattern<'a>>::Searcher: Sync,

impl<'a, P> Sync for boolean_enums::lstd::str::Split<'a, P> where     <P as Pattern<'a>>::Searcher: Sync,

impl<'a, P> Sync for boolean_enums::lstd::str::SplitN<'a, P> where     <P as Pattern<'a>>::Searcher: Sync,

impl<'a, P> Sync for SplitTerminator<'a, P> where     <P as Pattern<'a>>::Searcher: Sync,

impl<'a, T> !Sync for boolean_enums::lstd::sync::mpsc::Iter<'a, T>

impl<'a, T> !Sync for TryIter<'a, T>

impl<'a, T> Sync for boolean_enums::lstd::collections::binary_heap::Drain<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::binary_heap::Iter<'a, T> where     T: Sync,

impl<'a, T> Sync for PeekMut<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::btree_set::Difference<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::btree_set::Intersection<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::btree_set::Iter<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::btree_set::Range<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::btree_set::SymmetricDifference<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::btree_set::Union<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::vec_deque::Iter<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::collections::vec_deque::IterMut<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::result::Iter<'a, T> where     T: Sync,

impl<'a, T> Sync for boolean_enums::lstd::result::IterMut<'a, T> where     T: Sync,

impl<'a, T> Sync for Chunks<'a, T> where     T: Sync,

impl<'a, T> Sync for ChunksExact<'a, T> where     T: Sync,

impl<'a, T> Sync for ChunksExactMut<'a, T> where     T: Sync,

impl<'a, T> Sync for ChunksMut<'a, T> where     T: Sync,

impl<'a, T> Sync for RChunks<'a, T> where     T: Sync,

impl<'a, T> Sync for RChunksExact<'a, T> where     T: Sync,

impl<'a, T> Sync for RChunksExactMut<'a, T> where     T: Sync,

impl<'a, T> Sync for RChunksMut<'a, T> where     T: Sync,

impl<'a, T> Sync for Windows<'a, T> where     T: Sync,

impl<'a, T, F> !Sync for boolean_enums::lstd::collections::linked_list::DrainFilter<'a, T, F>

impl<'a, T, F> Sync for boolean_enums::lstd::vec::DrainFilter<'a, T, F> where     F: Sync,     T: Sync,

impl<'a, T, P> Sync for boolean_enums::lstd::slice::RSplit<'a, T, P> where     P: Sync,     T: Sync,

impl<'a, T, P> Sync for RSplitMut<'a, T, P> where     P: Sync,     T: Sync,

impl<'a, T, P> Sync for boolean_enums::lstd::slice::RSplitN<'a, T, P> where     P: Sync,     T: Sync,

impl<'a, T, P> Sync for RSplitNMut<'a, T, P> where     P: Sync,     T: Sync,

impl<'a, T, P> Sync for boolean_enums::lstd::slice::Split<'a, T, P> where     P: Sync,     T: Sync,

impl<'a, T, P> Sync for SplitMut<'a, T, P> where     P: Sync,     T: Sync,

impl<'a, T, P> Sync for boolean_enums::lstd::slice::SplitN<'a, T, P> where     P: Sync,     T: Sync,

impl<'a, T, P> Sync for SplitNMut<'a, T, P> where     P: Sync,     T: Sync,

impl<'a, T, S> Sync for boolean_enums::lstd::collections::hash_set::Difference<'a, T, S> where     S: Sync,     T: Sync,

impl<'a, T, S> Sync for boolean_enums::lstd::collections::hash_set::Intersection<'a, T, S> where     S: Sync,     T: Sync,

impl<'a, T, S> Sync for boolean_enums::lstd::collections::hash_set::SymmetricDifference<'a, T, S> where     S: Sync,     T: Sync,

impl<'a, T, S> Sync for boolean_enums::lstd::collections::hash_set::Union<'a, T, S> where     S: Sync,     T: Sync,

impl<'b, T> !Sync for Ref<'b, T>

impl<'b, T> !Sync for RefMut<'b, T>

impl<'rx, T> !Sync for Handle<'rx, T>

impl<A> Sync for boolean_enums::lstd::iter::Repeat<A> where     A: Sync,

impl<A> Sync for boolean_enums::lstd::option::IntoIter<A> where     A: Sync,

impl<A, B> Sync for boolean_enums::lstd::iter::Chain<A, B> where     A: Sync,     B: Sync,

impl<A, B> Sync for Zip<A, B> where     A: Sync,     B: Sync,

impl<B> Sync for boolean_enums::lstd::io::Lines<B> where     B: Sync,

impl<B> Sync for boolean_enums::lstd::io::Split<B> where     B: Sync,

impl<F> Sync for RepeatWith<F> where     F: Sync,

impl<H> Sync for BuildHasherDefault<H> where     H: Sync,

impl<I> Sync for DecodeUtf16<I> where     I: Sync,

impl<I> Sync for Cloned<I> where     I: Sync,

impl<I> Sync for Copied<I> where     I: Sync,

impl<I> Sync for Cycle<I> where     I: Sync,

impl<I> Sync for Enumerate<I> where     I: Sync,

impl<I> Sync for Flatten<I> where     I: Sync,     <<I as Iterator>::Item as IntoIterator>::IntoIter: Sync,

impl<I> Sync for Fuse<I> where     I: Sync,

impl<I> Sync for Peekable<I> where     I: Sync,     <I as Iterator>::Item: Sync,

impl<I> Sync for Skip<I> where     I: Sync,

impl<I> Sync for StepBy<I> where     I: Sync,

impl<I> Sync for boolean_enums::lstd::iter::Take<I> where     I: Sync,

impl<I, F> Sync for FilterMap<I, F> where     F: Sync,     I: Sync,

impl<I, F> Sync for Inspect<I, F> where     F: Sync,     I: Sync,

impl<I, F> Sync for Map<I, F> where     F: Sync,     I: Sync,

impl<I, P> Sync for Filter<I, P> where     I: Sync,     P: Sync,

impl<I, P> Sync for SkipWhile<I, P> where     I: Sync,     P: Sync,

impl<I, P> Sync for TakeWhile<I, P> where     I: Sync,     P: Sync,

impl<I, St, F> Sync for Scan<I, St, F> where     F: Sync,     I: Sync,     St: Sync,

impl<I, U, F> Sync for FlatMap<I, U, F> where     F: Sync,     I: Sync,     <U as IntoIterator>::IntoIter: Sync,

impl<Idx> Sync for boolean_enums::lstd::ops::Range<Idx> where     Idx: Sync,

impl<Idx> Sync for RangeFrom<Idx> where     Idx: Sync,

impl<Idx> Sync for RangeInclusive<Idx> where     Idx: Sync,

impl<Idx> Sync for RangeTo<Idx> where     Idx: Sync,

impl<Idx> Sync for RangeToInclusive<Idx> where     Idx: Sync,

impl<K> Sync for boolean_enums::lstd::collections::hash_set::IntoIter<K> where     K: Sync,

impl<K, V> Sync for boolean_enums::lstd::collections::btree_map::IntoIter<K, V> where     K: Sync,     V: Sync,

impl<K, V> Sync for boolean_enums::lstd::collections::hash_map::IntoIter<K, V> where     K: Sync,     V: Sync,

impl<K, V> Sync for BTreeMap<K, V> where     K: Sync,     V: Sync,

impl<K, V, S> Sync for HashMap<K, V, S> where     K: Sync,     S: Sync,     V: Sync,

impl<P> Sync for Pin<P> where     P: Sync,

impl<R> Sync for BufReader<R> where     R: Sync,

impl<R> Sync for boolean_enums::lstd::io::Bytes<R> where     R: Sync,

impl<St, F> Sync for Unfold<St, F> where     F: Sync,     St: Sync,

impl<T> !Sync for boolean_enums::lstd::thread::__FastLocalKeyInner<T>

impl<T> !Sync for boolean_enums::lstd::sync::mpsc::IntoIter<T>

impl<T> Sync for LocalKey<T>

impl<T> Sync for Discriminant<T>

impl<T> Sync for Bound<T> where     T: Sync,

impl<T> Sync for Option<T> where     T: Sync,

impl<T> Sync for TryLockError<T> where     T: Sync,

impl<T> Sync for TrySendError<T> where     T: Sync,

impl<T> Sync for Poll<T> where     T: Sync,

impl<T> Sync for Reverse<T> where     T: Sync,

impl<T> Sync for BinaryHeap<T> where     T: Sync,

impl<T> Sync for boolean_enums::lstd::collections::binary_heap::IntoIter<T> where     T: Sync,

impl<T> Sync for BTreeSet<T> where     T: Sync,

impl<T> Sync for boolean_enums::lstd::collections::btree_set::IntoIter<T> where     T: Sync,

impl<T> Sync for boolean_enums::lstd::collections::linked_list::IntoIter<T> where     T: Sync,

impl<T> Sync for boolean_enums::lstd::collections::vec_deque::IntoIter<T> where     T: Sync,

impl<T> Sync for VecDeque<T> where     T: Sync,

impl<T> Sync for Cursor<T> where     T: Sync,

impl<T> Sync for boolean_enums::lstd::io::Take<T> where     T: Sync,

impl<T> Sync for boolean_enums::lstd::iter::Empty<T> where     T: Sync,

impl<T> Sync for boolean_enums::lstd::iter::Once<T> where     T: Sync,

impl<T> Sync for Rev<T> where     T: Sync,

impl<T> Sync for Wrapping<T> where     T: Sync,

impl<T> Sync for AssertUnwindSafe<T> where     T: Sync,

impl<T> Sync for Vec<T> where     T: Sync,

impl<T> Sync for boolean_enums::lstd::result::IntoIter<T> where     T: Sync,

impl<T> Sync for SendError<T> where     T: Sync,

impl<T> Sync for SyncSender<T> where     T: Send,

impl<T> Sync for PoisonError<T> where     T: Sync,

impl<T> Sync for MaybeUninit<T> where     T: Sync,

impl<T, E> Sync for Result<T, E> where     E: Sync,     T: Sync,

impl<T, F> Sync for Successors<T, F> where     F: Sync,     T: Sync,

impl<T, S> Sync for HashSet<T, S> where     S: Sync,     T: Sync,

impl<T, U> Sync for boolean_enums::lstd::io::Chain<T, U> where     T: Sync,     U: Sync,

impl<T: ?Sized> Sync for PhantomData<T> where     T: Sync,

impl<T: ?Sized> Sync for ManuallyDrop<T> where     T: Sync,

impl<T: ?Sized> Sync for Box<T> where     T: Sync,

impl<W> Sync for BufWriter<W> where     W: Sync,

impl<W> Sync for IntoInnerError<W> where     W: Sync,

impl<W> Sync for LineWriter<W> where     W: Sync,

impl<Y, R> Sync for GeneratorState<Y, R> where     R: Sync,     Y: Sync,

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