Enum HarnessError 

#[non_exhaustive]
pub enum HarnessError {
    Model(CurrentModelError),
    Recorder {
        run: Option<RunId>,
        source: RecorderError,
    },
    Stalled,
}

An error that stopped a run before Harness::run could report an outcome.

Harness::run returns it as its Err value.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Model(CurrentModelError)

The Harness failed to resolve the Host’s current model through the inference broker. The resolution failure is the error’s source. The run failed to begin.

Recorder

The recorder refused a write, so the Harness stops driving the run.

Fields

run: Option<RunId>

The id of the run the recorder issued before it refused. None when the recorder refused to begin the run.

source: RecorderError

The error the recorder returned.

Stalled

The run was still pending, but its set of effects in flight was empty. This means the Harness lost track of an effect.

Trait Implementations

impl Debug for HarnessError

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

Formats the value using the given formatter.

impl Display for HarnessError

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

Formats the value using the given formatter.

impl Error for HarnessError

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.