Unpin in std::marker - Rust
Description: Types that do not require any pinning guarantees.

## Unpin

# Trait Unpin

1.33.0 · Source

    pub auto trait Unpin { }

Expand description

Types that do not require any pinning guarantees.

For information on what “pinning” is, see the `pin` module documentation.

Implementing the `Unpin` trait for `T` expresses the fact that `T` is pinning-agnostic: it shall not expose nor rely on any pinning guarantees. This, in turn, means that a `Pin`-wrapped pointer to such a type can feature a fully unrestricted API. In other words, if `T: Unpin`, a value of type `T` will not be bound by the invariants which pinning otherwise offers, even when “pinned” by a `Pin<Ptr>` pointing at it. When a value of type `T` is pointed at by a `Pin<Ptr>`, `Pin` will not restrict access to the pointee value like it normally would, thus allowing the user to do anything that they normally could with a non-`Pin`-wrapped `Ptr` to that value.

The idea of this trait is to alleviate the reduced ergonomics of APIs that require the use of `Pin` for soundness for some types, but which also want to be used by other types that don’t care about pinning. The prime example of such an API is `Future::poll`. There are many `Future` types that don’t care about pinning. These futures can implement `Unpin` and therefore get around the pinning related restrictions in the API, while still allowing the subset of `Future`s which do require pinning to be implemented soundly.

For more discussion on the consequences of `Unpin` within the wider scope of the pinning system, see the section about `Unpin` in the `pin` module.

`Unpin` has no consequence at all for non-pinned data. In particular, `mem::replace` happily moves `!Unpin` data, which would be immovable when pinned (`mem::replace` works for any `&mut T`, not just when `T: Unpin`).

However, you cannot use `mem::replace` on `!Unpin` data which is pinned by being wrapped inside a `Pin<Ptr>` pointing at it. This is because you cannot (safely) use a `Pin<Ptr>` to get a `&mut T` to its pointee value, which you would need to call `mem::replace`, and that is what makes this system work.

So this, for example, can only be done on types implementing `Unpin`:

    use std::mem;
    use std::pin::Pin;

    let mut string = "this".to_string();
    let mut pinned_string = Pin::new(&mut string);

    // We need a mutable reference to call `mem::replace`.
    // We can obtain such a reference by (implicitly) invoking `Pin::deref_mut`,
    // but that is only possible because `String` implements `Unpin`.
    mem::replace(&mut *pinned_string, "other".to_string());

This trait is automatically implemented for almost every type. The compiler is free to take the conservative stance of marking types as `Unpin` so long as all of the types that compose its fields are also `Unpin`. This is because if a type implements `Unpin`, then it is unsound for that type’s implementation to rely on pinning-related guarantees for soundness, even when viewed through a “pinning” pointer! It is the responsibility of the implementor of a type that relies upon pinning for soundness to ensure that type is not marked as `Unpin` by adding `PhantomPinned` field. For more details, see the `pin` module docs.

## Implementors§

1.33.0 · Source§

### impl !Unpin for PhantomPinned

Source§

### impl<T> !Unpin for UnsafePinned<T>
where T: ?Sized,

When this type is used, that almost certainly means safe APIs need to use pinning to avoid the aliases from becoming invalidated. Therefore let’s mark this as `!Unpin`. You can always opt back in to `Unpin` with an `impl` block, provided your API is still sound while unpinned.

Source§

### impl Unpin for LocalWaker

1.36.0 · Source§

### impl Unpin for Waker

Source§

### impl<Dyn> Unpin for DynMetadata<Dyn>
where Dyn: ?Sized,

1.64.0 · Source§

### impl<F> Unpin for PollFn<F>
where F: Unpin,

Source§

### impl<I> Unpin for FromIter<I>

Source§

### impl<T> Unpin for *const T is !null
where T: ?Sized,

1.38.0 · Source§

### impl<T> Unpin for *const T
where T: ?Sized,

1.38.0 · Source§

### impl<T> Unpin for *mut T
where T: ?Sized,

1.33.0 · Source§

### impl<T> Unpin for &T
where T: ?Sized,

1.33.0 · Source§

### impl<T> Unpin for &mut T
where T: ?Sized,

1.48.0 · Source§

### impl<T> Unpin for Ready<T>

1.28.0 · Source§

### impl<T> Unpin for NonZero<T>
where T: ZeroablePrimitive + Unpin,

1.33.0 · Source§

### impl<T, A> Unpin for Box<T, A>
where A: Allocator, T: ?Sized,

1.33.0 · Source§

### impl<T, A> Unpin for Rc<T, A>
where A: Allocator, T: ?Sized,

Source§

### impl<T, A> Unpin for UniqueRc<T, A>
where A: Allocator, T: ?Sized,

1.33.0 · Source§

### impl<T, A> Unpin for Arc<T, A>
where A: Allocator, T: ?Sized,

Source§

### impl<T, A> Unpin for UniqueArc<T, A>
where A: Allocator, T: ?Sized,

## Auto implementors§

§

### impl<'a> !Unpin for Request<'a>

§

### impl Unpin for AsciiChar

§

### impl Unpin for BacktraceStatus

§

### impl Unpin for std::cmp::Ordering

§

### impl Unpin for TryReserveErrorKind

§

### impl Unpin for Infallible

§

### impl Unpin for VarError

§

### impl Unpin for FromBytesWithNulError

§

### impl Unpin for c_void

§

### impl Unpin for std::fmt::Alignment

§

### impl Unpin for DebugAsHex

§

### impl Unpin for Sign

§

### impl Unpin for std::fs::TryLockError

§

### impl Unpin for Locality

§

### impl Unpin for AtomicOrdering

§

### impl Unpin for BasicBlock

§

### impl Unpin for UnwindTerminateReason

§

### impl Unpin for SimdAlign

§

### impl Unpin for ErrorKind

§

### impl Unpin for SeekFrom

§

### impl Unpin for TypeKind

§

### impl Unpin for IpAddr

§

### impl Unpin for Ipv6MulticastScope

§

### impl Unpin for Shutdown

§

### impl Unpin for SocketAddr

§

### impl Unpin for FpCategory

§

### impl Unpin for IntErrorKind

§

### impl Unpin for OneSidedRangeBound

§

### impl Unpin for BacktraceStyle

§

### impl Unpin for GetDisjointMutError

§

### impl Unpin for SearchStep

§

### impl Unpin for std::sync::atomic::Ordering

§

### impl Unpin for std::sync::mpsc::RecvTimeoutError

§

### impl Unpin for std::sync::mpsc::TryRecvError

§

### impl Unpin for bool

§

### impl Unpin for char

§

### impl Unpin for f16

§

### impl Unpin for f32

§

### impl Unpin for f64

§

### impl Unpin for f128

§

### impl Unpin for i8

§

### impl Unpin for i16

§

### impl Unpin for i32

§

### impl Unpin for i64

§

### impl Unpin for i128

§

### impl Unpin for isize

§

### impl Unpin for !

§

### impl Unpin for str

§

### impl Unpin for u8

§

### impl Unpin for u16

§

### impl Unpin for u32

§

### impl Unpin for u64

§

### impl Unpin for u128

§

### impl Unpin for ()

§

### impl Unpin for usize

§

### impl Unpin for AllocError

§

### impl Unpin for Global

§

### impl Unpin for Layout

§

### impl Unpin for LayoutError

§

### impl Unpin for System

§

### impl Unpin for TypeId

§

### impl Unpin for TryFromSliceError

§

### impl Unpin for std::ascii::EscapeDefault

§

### impl Unpin for Backtrace

§

### impl Unpin for BacktraceFrame

§

### impl Unpin for ByteStr

§

### impl Unpin for ByteString

§

### impl Unpin for BorrowError

§

### impl Unpin for BorrowMutError

§

### impl Unpin for CharTryFromError

§

### impl Unpin for DecodeUtf16Error

§

### impl Unpin for std::char::EscapeDebug

§

### impl Unpin for std::char::EscapeDefault

§

### impl Unpin for std::char::EscapeUnicode

§

### impl Unpin for ParseCharError

§

### impl Unpin for ToLowercase

§

### impl Unpin for ToUppercase

§

### impl Unpin for TryFromCharError

§

### impl Unpin for UnorderedKeyError

§

### impl Unpin for TryReserveError

§

### impl Unpin for Args

§

### impl Unpin for ArgsOs

§

### impl Unpin for JoinPathsError

§

### impl Unpin for Vars

§

### impl Unpin for VarsOs

§

### impl Unpin for CStr

§

### impl Unpin for CString

§

### impl Unpin for FromBytesUntilNulError

§

### impl Unpin for FromVecWithNulError

§

### impl Unpin for IntoStringError

§

### impl Unpin for NulError

§

### impl Unpin for OsStr

§

### impl Unpin for OsString

§

### impl Unpin for std::fmt::Error

§

### impl Unpin for FormattingOptions

§

### impl Unpin for Dir

§

### impl Unpin for DirBuilder

§

### impl Unpin for DirEntry

§

### impl Unpin for File

§

### impl Unpin for FileTimes

§

### impl Unpin for FileType

§

### impl Unpin for Metadata

§

### impl Unpin for OpenOptions

§

### impl Unpin for Permissions

§

### impl Unpin for ReadDir

§

### impl Unpin for DefaultHasher

§

### impl Unpin for RandomState

§

### impl Unpin for SipHasher

§

### impl Unpin for ReturnToArg

§

### impl Unpin for UnwindActionArg

§

### impl Unpin for std::io::Empty

§

### impl Unpin for std::io::Error

§

### impl Unpin for PipeReader

§

### impl Unpin for PipeWriter

§

### impl Unpin for std::io::Repeat

§

### impl Unpin for Sink

§

### impl Unpin for Stderr

§

### impl Unpin for Stdin

§

### impl Unpin for Stdout

§

### impl Unpin for WriterPanicked

§

### impl Unpin for Assume

§

### impl Unpin for Array

§

### impl Unpin for Bool

§

### impl Unpin for Char

§

### impl Unpin for Field

§

### impl Unpin for Float

§

### impl Unpin for Int

§

### impl Unpin for Reference

§

### impl Unpin for Str

§

### impl Unpin for Tuple

§

### impl Unpin for Type

§

### impl Unpin for AddrParseError

§

### impl Unpin for IntoIncoming

§

### impl Unpin for Ipv4Addr

§

### impl Unpin for Ipv6Addr

§

### impl Unpin for SocketAddrV4

§

### impl Unpin for SocketAddrV6

§

### impl Unpin for TcpListener

§

### impl Unpin for TcpStream

§

### impl Unpin for UdpSocket

§

### impl Unpin for ParseFloatError

§

### impl Unpin for ParseIntError

§

### impl Unpin for TryFromIntError

§

### impl Unpin for RangeFull

§

### impl Unpin for OwnedFd

§

### impl Unpin for NormalizeError

§

### impl Unpin for Path

§

### impl Unpin for PathBuf

§

### impl Unpin for StripPrefixError

§

### impl Unpin for Child

§

### impl Unpin for ChildStderr

§

### impl Unpin for ChildStdin

§

### impl Unpin for ChildStdout

§

### impl Unpin for Command

§

### impl Unpin for ExitCode

§

### impl Unpin for ExitStatus

§

### impl Unpin for ExitStatusError

§

### impl Unpin for Output

§

### impl Unpin for Stdio

§

### impl Unpin for std::ptr::Alignment

§

### impl Unpin for DefaultRandomSource

§

### impl Unpin for ParseBoolError

§

### impl Unpin for Utf8Error

§

### impl Unpin for FromUtf8Error

§

### impl Unpin for FromUtf16Error

§

### impl Unpin for IntoChars

§

### impl Unpin for String

§

### impl Unpin for AtomicBool

§

### impl Unpin for AtomicI8

§

### impl Unpin for AtomicI16

§

### impl Unpin for AtomicI32

§

### impl Unpin for AtomicI64

§

### impl Unpin for AtomicIsize

§

### impl Unpin for AtomicU8

§

### impl Unpin for AtomicU16

§

### impl Unpin for AtomicU32

§

### impl Unpin for AtomicU64

§

### impl Unpin for AtomicUsize

§

### impl Unpin for RecvError

§

### impl Unpin for std::sync::nonpoison::Condvar

§

### impl Unpin for WouldBlock

§

### impl Unpin for Barrier

§

### impl Unpin for BarrierWaitResult

§

### impl Unpin for std::sync::Condvar

§

### impl Unpin for std::sync::Once

§

### impl Unpin for OnceState

§

### impl Unpin for WaitTimeoutResult

§

### impl Unpin for RawWaker

§

### impl Unpin for RawWakerVTable

§

### impl Unpin for AccessError

§

### impl Unpin for Builder

§

### impl Unpin for Thread

§

### impl Unpin for ThreadId

§

### impl Unpin for Duration

§

### impl Unpin for Instant

§

### impl Unpin for SystemTime

§

### impl Unpin for SystemTimeError

§

### impl Unpin for TryFromFloatSecsError

§

### impl<'a> Unpin for Component<'a>

§

### impl<'a> Unpin for Prefix<'a>

§

### impl<'a> Unpin for Utf8Pattern<'a>

§

### impl<'a> Unpin for SplitPaths<'a>

§

### impl<'a> Unpin for std::ffi::os_str::Display<'a>

§

### impl<'a> Unpin for VaList<'a>

§

### impl<'a> Unpin for Arguments<'a>

§

### impl<'a> Unpin for Formatter<'a>

§

### impl<'a> Unpin for BorrowedCursor<'a>

§

### impl<'a> Unpin for IoSlice<'a>

§

### impl<'a> Unpin for IoSliceMut<'a>

§

### impl<'a> Unpin for StderrLock<'a>

§

### impl<'a> Unpin for StdinLock<'a>

§

### impl<'a> Unpin for StdoutLock<'a>

§

### impl<'a> Unpin for Incoming<'a>

§

### impl<'a> Unpin for Location<'a>

§

### impl<'a> Unpin for PanicHookInfo<'a>

§

### impl<'a> Unpin for Ancestors<'a>

§

### impl<'a> Unpin for Components<'a>

§

### impl<'a> Unpin for std::path::Display<'a>

§

### impl<'a> Unpin for std::path::Iter<'a>

§

### impl<'a> Unpin for PrefixComponent<'a>

§

### impl<'a> Unpin for CommandArgs<'a>

§

### impl<'a> Unpin for CommandEnvs<'a>

§

### impl<'a> Unpin for EscapeAscii<'a>

§

### impl<'a> Unpin for CharSearcher<'a>

§

### impl<'a> Unpin for std::str::Bytes<'a>

§

### impl<'a> Unpin for CharIndices<'a>

§

### impl<'a> Unpin for Chars<'a>

§

### impl<'a> Unpin for EncodeUtf16<'a>

§

### impl<'a> Unpin for std::str::EscapeDebug<'a>

§

### impl<'a> Unpin for std::str::EscapeDefault<'a>

§

### impl<'a> Unpin for std::str::EscapeUnicode<'a>

§

### impl<'a> Unpin for std::str::Lines<'a>

§

### impl<'a> Unpin for LinesAny<'a>

§

### impl<'a> Unpin for SplitAsciiWhitespace<'a>

§

### impl<'a> Unpin for SplitWhitespace<'a>

§

### impl<'a> Unpin for Utf8Chunk<'a>

§

### impl<'a> Unpin for Utf8Chunks<'a>

§

### impl<'a> Unpin for std::string::Drain<'a>

§

### impl<'a> Unpin for Context<'a>

§

### impl<'a> Unpin for ContextBuilder<'a>

§

### impl<'a> Unpin for PhantomContravariantLifetime<'a>

§

### impl<'a> Unpin for PhantomCovariantLifetime<'a>

§

### impl<'a> Unpin for PhantomInvariantLifetime<'a>

§

### impl<'a, 'b> Unpin for DebugList<'a, 'b>

§

### impl<'a, 'b> Unpin for DebugMap<'a, 'b>

§

### impl<'a, 'b> Unpin for DebugSet<'a, 'b>

§

### impl<'a, 'b> Unpin for DebugStruct<'a, 'b>

§

### impl<'a, 'b> Unpin for DebugTuple<'a, 'b>

§

### impl<'a, 'b> Unpin for CharSliceSearcher<'a, 'b>

§

### impl<'a, 'b> Unpin for StrSearcher<'a, 'b>

§

### impl<'a, 'b, const N: usize> Unpin for CharArrayRefSearcher<'a, 'b, N>

§

### impl<'a, A> Unpin for std::option::Iter<'a, A>

§

### impl<'a, A> Unpin for std::option::IterMut<'a, A>

§

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

§

### impl<'a, F> Unpin for CharPredicateSearcher<'a, F>
where F: Unpin,

§

### impl<'a, I> Unpin for ByRefSized<'a, I>

§

### impl<'a, I, A> Unpin for std::collections::vec_deque::Splice<'a, I, A>
where I: Unpin,

§

### impl<'a, I, A> Unpin for std::vec::Splice<'a, I, A>
where I: Unpin,

§

### impl<'a, K> Unpin for std::collections::btree_set::Cursor<'a, K>

§

### impl<'a, K> Unpin for std::collections::hash_set::Iter<'a, K>

§

### impl<'a, K, A> Unpin for std::collections::btree_set::CursorMut<'a, K, A>

§

### impl<'a, K, A> Unpin for std::collections::btree_set::CursorMutKey<'a, K, A>

§

### impl<'a, K, A> Unpin for std::collections::hash_set::Drain<'a, K, A>

§

### impl<'a, K, F, A> Unpin for std::collections::hash_set::ExtractIf<'a, K, F, A>
where F: Unpin,

§

### impl<'a, K, V> Unpin for std::collections::btree_map::Cursor<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::btree_map::Iter<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::btree_map::IterMut<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::btree_map::Keys<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::btree_map::Range<'a, K, V>

§

### impl<'a, K, V> Unpin for RangeMut<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::btree_map::Values<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::btree_map::ValuesMut<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::hash_map::Iter<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::hash_map::IterMut<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::hash_map::Keys<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::hash_map::Values<'a, K, V>

§

### impl<'a, K, V> Unpin for std::collections::hash_map::ValuesMut<'a, K, V>

§

### impl<'a, K, V, A> Unpin for std::collections::btree_map::Entry<'a, K, V, A>
where K: Unpin, A: Unpin,

§

### impl<'a, K, V, A> Unpin for std::collections::hash_map::Entry<'a, K, V, A>
where K: Unpin,

§

### impl<'a, K, V, A> Unpin for std::collections::btree_map::CursorMut<'a, K, V, A>

§

### impl<'a, K, V, A> Unpin for std::collections::btree_map::CursorMutKey<'a, K, V, A>

§

### impl<'a, K, V, A> Unpin for std::collections::btree_map::OccupiedEntry<'a, K, V, A>
where A: Unpin,

§

### impl<'a, K, V, A> Unpin for std::collections::btree_map::OccupiedError<'a, K, V, A>
where V: Unpin, A: Unpin,

§

### impl<'a, K, V, A> Unpin for std::collections::btree_map::VacantEntry<'a, K, V, A>
where K: Unpin, A: Unpin,

§

### impl<'a, K, V, A> Unpin for std::collections::hash_map::Drain<'a, K, V, A>

§

### impl<'a, K, V, A> Unpin for std::collections::hash_map::OccupiedEntry<'a, K, V, A>

§

### impl<'a, K, V, A> Unpin for std::collections::hash_map::OccupiedError<'a, K, V, A>
where V: Unpin,

§

### impl<'a, K, V, A> Unpin for std::collections::hash_map::VacantEntry<'a, K, V, A>
where K: Unpin,

§

### impl<'a, K, V, F, A> Unpin for std::collections::hash_map::ExtractIf<'a, K, V, F, A>
where F: Unpin,

§

### impl<'a, K, V, R, F, A> Unpin for std::collections::btree_map::ExtractIf<'a, K, V, R, F, A>
where F: Unpin, A: Unpin, R: Unpin,

§

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

§

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

§

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

§

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

§

### impl<'a, P> Unpin for std::str::RSplit<'a, P>
where <P as Pattern>::Searcher<'a>: Unpin,

§

### impl<'a, P> Unpin for std::str::RSplitN<'a, P>
where <P as Pattern>::Searcher<'a>: Unpin,

§

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

§

### impl<'a, P> Unpin for std::str::Split<'a, P>
where <P as Pattern>::Searcher<'a>: Unpin,

§

### impl<'a, P> Unpin for std::str::SplitInclusive<'a, P>
where <P as Pattern>::Searcher<'a>: Unpin,

§

### impl<'a, P> Unpin for std::str::SplitN<'a, P>
where <P as Pattern>::Searcher<'a>: Unpin,

§

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

§

### impl<'a, T> Unpin for std::collections::binary_heap::Iter<'a, T>

§

### impl<'a, T> Unpin for std::collections::btree_set::Iter<'a, T>

§

### impl<'a, T> Unpin for std::collections::btree_set::Range<'a, T>

§

### impl<'a, T> Unpin for std::collections::btree_set::SymmetricDifference<'a, T>

§

### impl<'a, T> Unpin for std::collections::btree_set::Union<'a, T>

§

### impl<'a, T> Unpin for std::collections::linked_list::Iter<'a, T>

§

### impl<'a, T> Unpin for std::collections::linked_list::IterMut<'a, T>

§

### impl<'a, T> Unpin for std::collections::vec_deque::Iter<'a, T>

§

### impl<'a, T> Unpin for std::collections::vec_deque::IterMut<'a, T>

§

### impl<'a, T> Unpin for std::result::Iter<'a, T>

§

### impl<'a, T> Unpin for std::result::IterMut<'a, T>

§

### impl<'a, T> Unpin for Chunks<'a, T>

§

### impl<'a, T> Unpin for ChunksExact<'a, T>

§

### impl<'a, T> Unpin for ChunksExactMut<'a, T>

§

### impl<'a, T> Unpin for ChunksMut<'a, T>

§

### impl<'a, T> Unpin for std::slice::Iter<'a, T>

§

### impl<'a, T> Unpin for std::slice::IterMut<'a, T>

§

### impl<'a, T> Unpin for RChunks<'a, T>

§

### impl<'a, T> Unpin for RChunksExact<'a, T>

§

### impl<'a, T> Unpin for RChunksExactMut<'a, T>

§

### impl<'a, T> Unpin for RChunksMut<'a, T>

§

### impl<'a, T> Unpin for Windows<'a, T>

§

### impl<'a, T> Unpin for std::sync::mpmc::Iter<'a, T>

§

### impl<'a, T> Unpin for std::sync::mpmc::TryIter<'a, T>

§

### impl<'a, T> Unpin for std::sync::mpsc::Iter<'a, T>

§

### impl<'a, T> Unpin for std::sync::mpsc::TryIter<'a, T>

§

### impl<'a, T> Unpin for std::sync::nonpoison::MappedMutexGuard<'a, T>
where T: ?Sized,

§

### impl<'a, T> Unpin for std::sync::nonpoison::MutexGuard<'a, T>
where T: ?Sized,

§

### impl<'a, T> Unpin for std::sync::MappedMutexGuard<'a, T>
where T: ?Sized,

§

### impl<'a, T> Unpin for std::sync::MutexGuard<'a, T>
where T: ?Sized,

§

### impl<'a, T> Unpin for ReentrantLockGuard<'a, T>
where T: ?Sized,

§

### impl<'a, T, A> Unpin for std::collections::btree_set::Entry<'a, T, A>
where A: Unpin, T: Unpin,

§

### impl<'a, T, A> Unpin for std::collections::binary_heap::Drain<'a, T, A>

§

### impl<'a, T, A> Unpin for DrainSorted<'a, T, A>

§

### impl<'a, T, A> Unpin for std::collections::binary_heap::PeekMut<'a, T, A>

§

### impl<'a, T, A> Unpin for std::collections::btree_set::Difference<'a, T, A>

§

### impl<'a, T, A> Unpin for std::collections::btree_set::Intersection<'a, T, A>

§

### impl<'a, T, A> Unpin for std::collections::btree_set::OccupiedEntry<'a, T, A>
where A: Unpin,

§

### impl<'a, T, A> Unpin for std::collections::btree_set::VacantEntry<'a, T, A>
where T: Unpin, A: Unpin,

§

### impl<'a, T, A> Unpin for std::collections::linked_list::Cursor<'a, T, A>

§

### impl<'a, T, A> Unpin for std::collections::linked_list::CursorMut<'a, T, A>

§

### impl<'a, T, A> Unpin for std::collections::vec_deque::Drain<'a, T, A>

§

### impl<'a, T, A> Unpin for std::vec::Drain<'a, T, A>

§

### impl<'a, T, A> Unpin for std::vec::PeekMut<'a, T, A>

§

### impl<'a, T, F, A> Unpin for std::collections::linked_list::ExtractIf<'a, T, F, A>
where F: Unpin,

§

### impl<'a, T, F, A> Unpin for std::collections::vec_deque::ExtractIf<'a, T, F, A>
where F: Unpin,

§

### impl<'a, T, F, A> Unpin for std::vec::ExtractIf<'a, T, F, A>
where F: Unpin,

§

### impl<'a, T, P> Unpin for ChunkBy<'a, T, P>
where P: Unpin,

§

### impl<'a, T, P> Unpin for ChunkByMut<'a, T, P>
where P: Unpin,

§

### impl<'a, T, P> Unpin for std::slice::RSplit<'a, T, P>
where P: Unpin,

§

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

§

### impl<'a, T, P> Unpin for std::slice::RSplitN<'a, T, P>
where P: Unpin,

§

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

§

### impl<'a, T, P> Unpin for std::slice::Split<'a, T, P>
where P: Unpin,

§

### impl<'a, T, P> Unpin for std::slice::SplitInclusive<'a, T, P>
where P: Unpin,

§

### impl<'a, T, P> Unpin for SplitInclusiveMut<'a, T, P>
where P: Unpin,

§

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

§

### impl<'a, T, P> Unpin for std::slice::SplitN<'a, T, P>
where P: Unpin,

§

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

§

### impl<'a, T, R, F, A> Unpin for std::collections::btree_set::ExtractIf<'a, T, R, F, A>
where F: Unpin, A: Unpin, R: Unpin,

§

### impl<'a, T, S, A> Unpin for std::collections::hash_set::Entry<'a, T, S, A>
where T: Unpin,

§

### impl<'a, T, S, A> Unpin for std::collections::hash_set::Difference<'a, T, S, A>

§

### impl<'a, T, S, A> Unpin for std::collections::hash_set::Intersection<'a, T, S, A>

§

### impl<'a, T, S, A> Unpin for std::collections::hash_set::OccupiedEntry<'a, T, S, A>

§

### impl<'a, T, S, A> Unpin for std::collections::hash_set::SymmetricDifference<'a, T, S, A>

§

### impl<'a, T, S, A> Unpin for std::collections::hash_set::Union<'a, T, S, A>

§

### impl<'a, T, S, A> Unpin for std::collections::hash_set::VacantEntry<'a, T, S, A>
where T: Unpin,

§

### impl<'a, T, const N: usize> Unpin for ArrayWindows<'a, T, N>

§

### impl<'a, const N: usize> Unpin for CharArraySearcher<'a, N>

§

### impl<'b, T> Unpin for Ref<'b, T>
where T: ?Sized,

§

### impl<'b, T> Unpin for RefMut<'b, T>
where T: ?Sized,

§

### impl<'data> Unpin for BorrowedBuf<'data>

§

### impl<'fd> Unpin for BorrowedFd<'fd>

§

### impl<'rwlock, T> Unpin for std::sync::nonpoison::MappedRwLockReadGuard<'rwlock, T>
where T: ?Sized,

§

### impl<'rwlock, T> Unpin for std::sync::nonpoison::MappedRwLockWriteGuard<'rwlock, T>
where T: ?Sized,

§

### impl<'rwlock, T> Unpin for std::sync::nonpoison::RwLockReadGuard<'rwlock, T>
where T: ?Sized,

§

### impl<'rwlock, T> Unpin for std::sync::nonpoison::RwLockWriteGuard<'rwlock, T>
where T: ?Sized,

§

### impl<'rwlock, T> Unpin for std::sync::MappedRwLockReadGuard<'rwlock, T>
where T: ?Sized,

§

### impl<'rwlock, T> Unpin for std::sync::MappedRwLockWriteGuard<'rwlock, T>
where T: ?Sized,

§

### impl<'rwlock, T> Unpin for std::sync::RwLockReadGuard<'rwlock, T>
where T: ?Sized,

§

### impl<'rwlock, T> Unpin for std::sync::RwLockWriteGuard<'rwlock, T>
where T: ?Sized,

§

### impl<'scope, 'env> Unpin for Scope<'scope, 'env>

§

### impl<'scope, T> Unpin for ScopedJoinHandle<'scope, T>

§

### impl<A> Unpin for std::iter::Repeat<A>
where A: Unpin,

§

### impl<A> Unpin for RepeatN<A>
where A: Unpin,

§

### impl<A> Unpin for std::option::IntoIter<A>
where A: Unpin,

§

### impl<A> Unpin for OptionFlatten<A>
where A: Unpin,

§

### impl<A> Unpin for RangeFromIter<A>
where A: Unpin,

§

### impl<A> Unpin for RangeInclusiveIter<A>
where A: Unpin,

§

### impl<A> Unpin for RangeIter<A>
where A: Unpin,

§

### impl<A, B> Unpin for std::iter::Chain<A, B>
where A: Unpin, B: Unpin,

§

### impl<A, B> Unpin for Zip<A, B>
where A: Unpin, B: Unpin,

§

### impl<B> Unpin for std::io::Lines<B>
where B: Unpin,

§

### impl<B> Unpin for std::io::Split<B>
where B: Unpin,

§

### impl<B, C> Unpin for ControlFlow<B, C>
where C: Unpin, B: Unpin,

§

### impl<E> Unpin for Report<E>
where E: Unpin,

§

### impl<F> Unpin for std::fmt::FromFn<F>
where F: Unpin,

§

### impl<F> Unpin for std::iter::FromFn<F>
where F: Unpin,

§

### impl<F> Unpin for OnceWith<F>
where F: Unpin,

§

### impl<F> Unpin for RepeatWith<F>
where F: Unpin,

§

### impl<G> Unpin for FromCoroutine<G>
where G: Unpin,

§

### impl<H> Unpin for BuildHasherDefault<H>

§

### impl<I> Unpin for DecodeUtf16<I>
where I: Unpin,

§

### impl<I> Unpin for Cloned<I>
where I: Unpin,

§

### impl<I> Unpin for Copied<I>
where I: Unpin,

§

### impl<I> Unpin for Cycle<I>
where I: Unpin,

§

### impl<I> Unpin for Enumerate<I>
where I: Unpin,

§

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

§

### impl<I> Unpin for Fuse<I>
where I: Unpin,

§

### impl<I> Unpin for Intersperse<I>
where <I as Iterator>::Item: Sized + Unpin, I: Unpin,

§

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

§

### impl<I> Unpin for Skip<I>
where I: Unpin,

§

### impl<I> Unpin for StepBy<I>
where I: Unpin,

§

### impl<I> Unpin for std::iter::Take<I>
where I: Unpin,

§

### impl<I, F> Unpin for FilterMap<I, F>
where I: Unpin, F: Unpin,

§

### impl<I, F> Unpin for Inspect<I, F>
where I: Unpin, F: Unpin,

§

### impl<I, F> Unpin for Map<I, F>
where I: Unpin, F: Unpin,

§

### impl<I, F, const N: usize> Unpin for MapWindows<I, F, N>
where F: Unpin, I: Unpin, <I as Iterator>::Item: Unpin,

§

### impl<I, G> Unpin for IntersperseWith<I, G>
where G: Unpin, <I as Iterator>::Item: Unpin, I: Unpin,

§

### impl<I, P> Unpin for Filter<I, P>
where I: Unpin, P: Unpin,

§

### impl<I, P> Unpin for MapWhile<I, P>
where I: Unpin, P: Unpin,

§

### impl<I, P> Unpin for SkipWhile<I, P>
where I: Unpin, P: Unpin,

§

### impl<I, P> Unpin for TakeWhile<I, P>
where I: Unpin, P: Unpin,

§

### impl<I, St, F> Unpin for Scan<I, St, F>
where I: Unpin, F: Unpin, St: Unpin,

§

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

§

### impl<I, const N: usize> Unpin for ArrayChunks<I, N>
where I: Unpin, <I as Iterator>::Item: Unpin,

§

### impl<Idx> Unpin for std::ops::Range<Idx>
where Idx: Unpin,

§

### impl<Idx> Unpin for std::ops::RangeFrom<Idx>
where Idx: Unpin,

§

### impl<Idx> Unpin for std::ops::RangeInclusive<Idx>
where Idx: Unpin,

§

### impl<Idx> Unpin for RangeTo<Idx>
where Idx: Unpin,

§

### impl<Idx> Unpin for std::ops::RangeToInclusive<Idx>
where Idx: Unpin,

§

### impl<Idx> Unpin for std::range::Range<Idx>
where Idx: Unpin,

§

### impl<Idx> Unpin for std::range::RangeFrom<Idx>
where Idx: Unpin,

§

### impl<Idx> Unpin for std::range::RangeInclusive<Idx>
where Idx: Unpin,

§

### impl<Idx> Unpin for std::range::RangeToInclusive<Idx>
where Idx: Unpin,

§

### impl<K, A> Unpin for std::collections::hash_set::IntoIter<K, A>
where A: Unpin, K: Unpin,

§

### impl<K, V, A> Unpin for std::collections::btree_map::IntoIter<K, V, A>
where A: Unpin,

§

### impl<K, V, A> Unpin for std::collections::btree_map::IntoKeys<K, V, A>
where A: Unpin,

§

### impl<K, V, A> Unpin for std::collections::btree_map::IntoValues<K, V, A>
where A: Unpin,

§

### impl<K, V, A> Unpin for std::collections::hash_map::IntoIter<K, V, A>
where A: Unpin, K: Unpin, V: Unpin,

§

### impl<K, V, A> Unpin for std::collections::hash_map::IntoKeys<K, V, A>
where A: Unpin, K: Unpin, V: Unpin,

§

### impl<K, V, A> Unpin for std::collections::hash_map::IntoValues<K, V, A>
where A: Unpin, K: Unpin, V: Unpin,

§

### impl<K, V, A> Unpin for BTreeMap<K, V, A>
where A: Unpin,

§

### impl<K, V, S, A> Unpin for HashMap<K, V, S, A>
where S: Unpin, A: Unpin, K: Unpin, V: Unpin,

§

### impl<P> Unpin for MaybeDangling<P>
where P: Unpin + ?Sized,

§

### impl<Ptr> Unpin for Pin<Ptr>
where Ptr: Unpin,

§

### impl<R> Unpin for BufReader<R>
where R: Unpin + ?Sized,

§

### impl<R> Unpin for std::io::Bytes<R>
where R: Unpin,

§

### impl<Ret, T> Unpin for fn(T₁, T₂, …, Tₙ) -> Ret

§

### impl<T> Unpin for Bound<T>
where T: Unpin,

§

### impl<T> Unpin for Option<T>
where T: Unpin,

§

### impl<T> Unpin for std::sync::TryLockError<T>
where T: Unpin,

§

### impl<T> Unpin for SendTimeoutError<T>
where T: Unpin,

§

### impl<T> Unpin for TrySendError<T>
where T: Unpin,

§

### impl<T> Unpin for std::sync::oneshot::RecvTimeoutError<T>

§

### impl<T> Unpin for std::sync::oneshot::TryRecvError<T>

§

### impl<T> Unpin for Poll<T>
where T: Unpin,

§

### impl<T> Unpin for [T]
where T: Unpin,

§

### impl<T> Unpin for (T₁, T₂, …, Tₙ)
where T: Unpin,

§

### impl<T> Unpin for ThinBox<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for Cell<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for OnceCell<T>
where T: Unpin,

§

### impl<T> Unpin for RefCell<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for SyncUnsafeCell<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for UnsafeCell<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for Reverse<T>
where T: Unpin,

§

### impl<T> Unpin for Pending<T>

§

### impl<T> Unpin for std::io::Cursor<T>
where T: Unpin,

§

### impl<T> Unpin for std::io::Take<T>
where T: Unpin,

§

### impl<T> Unpin for std::iter::Empty<T>

§

### impl<T> Unpin for std::iter::Once<T>
where T: Unpin,

§

### impl<T> Unpin for Rev<T>
where T: Unpin,

§

### impl<T> Unpin for Discriminant<T>

§

### impl<T> Unpin for ManuallyDrop<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for Saturating<T>
where T: Unpin,

§

### impl<T> Unpin for Wrapping<T>
where T: Unpin,

§

### impl<T> Unpin for Yeet<T>
where T: Unpin,

§

### impl<T> Unpin for AssertUnwindSafe<T>
where T: Unpin,

§

### impl<T> Unpin for NonNull<T>
where T: ?Sized,

§

### impl<T> Unpin for std::result::IntoIter<T>
where T: Unpin,

§

### impl<T> Unpin for AtomicPtr<T>

§

### impl<T> Unpin for std::sync::mpmc::IntoIter<T>

§

### impl<T> Unpin for std::sync::mpmc::Receiver<T>

§

### impl<T> Unpin for std::sync::mpmc::Sender<T>

§

### impl<T> Unpin for std::sync::mpsc::IntoIter<T>

§

### impl<T> Unpin for std::sync::mpsc::Receiver<T>

§

### impl<T> Unpin for SendError<T>
where T: Unpin,

§

### impl<T> Unpin for std::sync::mpsc::Sender<T>

§

### impl<T> Unpin for SyncSender<T>

§

### impl<T> Unpin for std::sync::nonpoison::Mutex<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for std::sync::nonpoison::RwLock<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for std::sync::oneshot::Receiver<T>

§

### impl<T> Unpin for std::sync::oneshot::Sender<T>

§

### impl<T> Unpin for Exclusive<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for std::sync::Mutex<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for OnceLock<T>
where T: Unpin,

§

### impl<T> Unpin for PoisonError<T>
where T: Unpin,

§

### impl<T> Unpin for ReentrantLock<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for std::sync::RwLock<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for JoinHandle<T>

§

### impl<T> Unpin for LocalKey<T>

§

### impl<T> Unpin for PhantomContravariant<T>
where T: ?Sized,

§

### impl<T> Unpin for PhantomCovariant<T>
where T: ?Sized,

§

### impl<T> Unpin for PhantomData<T>
where T: Unpin + ?Sized,

§

### impl<T> Unpin for PhantomInvariant<T>
where T: ?Sized,

§

### impl<T> Unpin for MaybeUninit<T>
where T: Unpin,

§

### impl<T, A> Unpin for std::collections::binary_heap::IntoIter<T, A>
where T: Unpin, A: Unpin,

§

### impl<T, A> Unpin for IntoIterSorted<T, A>
where A: Unpin, T: Unpin,

§

### impl<T, A> Unpin for std::collections::btree_set::IntoIter<T, A>
where A: Unpin,

§

### impl<T, A> Unpin for std::collections::linked_list::IntoIter<T, A>
where A: Unpin,

§

### impl<T, A> Unpin for BTreeSet<T, A>
where A: Unpin,

§

### impl<T, A> Unpin for BinaryHeap<T, A>
where A: Unpin, T: Unpin,

§

### impl<T, A> Unpin for LinkedList<T, A>
where A: Unpin,

§

### impl<T, A> Unpin for VecDeque<T, A>
where A: Unpin, T: Unpin,

§

### impl<T, A> Unpin for std::collections::vec_deque::IntoIter<T, A>
where A: Unpin, T: Unpin,

§

### impl<T, A> Unpin for std::rc::Weak<T, A>
where A: Unpin, T: ?Sized,

§

### impl<T, A> Unpin for std::sync::Weak<T, A>
where A: Unpin, T: ?Sized,

§

### impl<T, A> Unpin for std::vec::IntoIter<T, A>
where T: Unpin, A: Unpin,

§

### impl<T, A> Unpin for Vec<T, A>
where A: Unpin, T: Unpin,

§

### impl<T, E> Unpin for Result<T, E>
where T: Unpin, E: Unpin,

§

### impl<T, F> Unpin for LazyCell<T, F>
where F: Unpin, T: Unpin,

§

### impl<T, F> Unpin for Successors<T, F>
where F: Unpin, T: Unpin,

§

### impl<T, F> Unpin for DropGuard<T, F>
where T: Unpin, F: Unpin,

§

### impl<T, F> Unpin for LazyLock<T, F>
where T: Unpin, F: Unpin,

§

### impl<T, S, A> Unpin for HashSet<T, S, A>
where S: Unpin, A: Unpin, T: Unpin,

§

### impl<T, U> Unpin for std::io::Chain<T, U>
where T: Unpin, U: Unpin,

§

### impl<T, const N: usize> Unpin for [T; N]
where T: Unpin,

§

### impl<T, const N: usize> Unpin for std::array::IntoIter<T, N>
where T: Unpin,

§

### impl<T, const N: usize> Unpin for Mask<T, N>
where T: Unpin,

§

### impl<T, const N: usize> Unpin for Simd<T, N>
where T: Unpin,

§

### impl<T, const N: usize> Unpin for [Option<T>; N]
where T: Unpin,

§

### impl<T, const N: usize> Unpin for [MaybeUninit<T>; N]
where T: Unpin,

§

### impl<W> Unpin for BufWriter<W>
where W: Unpin + ?Sized,

§

### impl<W> Unpin for IntoInnerError<W>
where W: Unpin,

§

### impl<W> Unpin for LineWriter<W>
where W: Unpin + ?Sized,

§

### impl<Y, R> Unpin for CoroutineState<Y, R>
where Y: Unpin, R: Unpin,

§

### impl<const N: usize> Unpin for LaneCount<N>

§

### impl<const N: usize> Unpin for [u8; N]