Enum BlockingError 

pub enum BlockingError {
    Panicked(String),
    WorkerVanished,
}

Why a spawn_blocking future resolved to an error instead of a value.

Variants

Panicked(String)

The closure panicked on the worker thread. The string is the panic message when one could be extracted from the payload.

WorkerVanished

The worker thread ended without sending a result. Should not happen in practice (the panic path is caught above); kept so the future always resolves rather than hanging.

Trait Implementations

impl Debug for BlockingError

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

Formats the value using the given formatter.

impl Display for BlockingError

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

Formats the value using the given formatter.

impl Error for BlockingError

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.