Enum StructuredOutputError 

pub enum StructuredOutputError {
    MissingResponseFormat,
    InvalidSchema(String),
    IncompatibleSchema(String),
    NoStructuredOutput,
    ProviderOutcome(String),
    RetriesExhausted {
        attempts: u32,
        errors: String,
        last_value: Option<Value>,
    },
    Transport(Error),
}

Errors from the structured-output runner.

These are typed terminal outcomes — the runner never panics on a model that fails to produce schema-valid output.

Variants

MissingResponseFormat

The request did not carry a response_format.

InvalidSchema(String)

The schema supplied in the response format is not a valid JSON Schema.

IncompatibleSchema(String)

The schema is valid JSON Schema, but OpenAI strict mode cannot preserve its dynamic-property semantics.

NoStructuredOutput

The model produced no extractable structured value (no JSON text / no forced tool call).

ProviderOutcome(String)

The provider returned a non-success outcome (rate limit, server error, invalid request).

RetriesExhausted

The re-prompt budget was exhausted and the latest output still failed schema validation. Carries the final validation errors and the last candidate value for diagnostics.

Fields

attempts: u32

Total number of model calls made (initial + retries).

errors: String

Human-readable concatenation of the final validation errors.

last_value: Option<Value>

The last candidate value the model produced, if any.

Transport(Error)

A transport-level error bubbled up from the provider.

Trait Implementations

impl Debug for StructuredOutputError

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

Formats the value using the given formatter.

impl Display for StructuredOutputError

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

Formats the value using the given formatter.

impl Error for StructuredOutputError

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 From<Error> for StructuredOutputError

fn from(source: Error) -> Self

Converts to this type from the input type.