Creates a new asynchronous channel, returning the sender/receiver halves. All data sent on the `Sender` will become available on the `Receiver` in the same order as it was sent, and no `send` will block the calling thread (this channel has an “infinite buffer”, unlike `sync_channel`, which will block after its buffer limit is reached). `recv` will block until a message is available while there is at least one `Sender` alive (including clones).

Creates a pointer with the given address and no provenance.

Performs a volatile write of a memory location with the given value without reading or dropping the old value.

Overwrites a memory location with the given value without reading or dropping the old value.

Converts a reference to T into a slice of length 1 (without copying).

Converts an address back to a mutable pointer, picking up a previously ‘exposed’ provenance.

An integer that is known not to equal zero.

Reads the value from `src` without moving it. This leaves the memory in `src` unchanged.

API documentation for the Rust `dev_t` type in crate `std`.

Overwrites a memory location with the given value without reading or dropping the old value.