Enum Error 

pub enum Error {
    KeyAlreadyExists,
    KeyNotFound,
    RequestTimeout,
    ReceiverDropped,
    Canceled,
}

Variants

KeyAlreadyExists

A request with the same key is already pending.

KeyNotFound

No pending request was found for the given key.

RequestTimeout

The request was not answered within its timeout.

ReceiverDropped

The waiter was dropped before a response could be delivered.

Canceled

The pending request was canceled (explicitly or because the owning PendingRequests was dropped) before a response arrived.

Trait Implementations

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.