Enum StateBackendBuildError 

pub enum StateBackendBuildError {
    NotImplemented(&'static str),
    Io(String),
}

Failure modes for StateBackendConfig::build.

Variants

NotImplemented(&'static str)

The selected backend exists in config but its runtime impl has not been wired up yet.

Io(String)

Backend construction failed at the I/O layer.

Trait Implementations

impl Debug for StateBackendBuildError

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

Formats the value using the given formatter.

impl Display for StateBackendBuildError

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

Formats the value using the given formatter.

impl Error for StateBackendBuildError

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.