Struct UnknownEngineError 

pub struct UnknownEngineError {
    pub key: String,
}

Lookup failure for engine_by_key.

Applications must treat this as an explicit unsupported state (e.g. a project created by a newer Hydra carrying an engine this build lacks) — never as a fallback to a default engine (spec §2.2).

Fields

key: String

The key that failed to resolve.

Trait Implementations

impl Clone for UnknownEngineError

fn clone(&self) -> UnknownEngineError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UnknownEngineError

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

Formats the value using the given formatter.

impl Display for UnknownEngineError

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

Formats the value using the given formatter.

impl Eq for UnknownEngineError

impl Error for UnknownEngineError

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.

impl PartialEq for UnknownEngineError

fn eq(&self, other: &UnknownEngineError) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for UnknownEngineError