Enum WorkerError 

#[non_exhaustive]
pub enum WorkerError {
    Transport(String),
    Python(String),
    Env(String),
    Encoding(String),
    Concurrency(String),
    Remote(String),
    Io(Error),
    Core(SomaError),
}

A failure inside a worker.

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.

Transport(String)

The socket or the HTTP endpoint. Usually worth retrying.

Python(String)

The Python subprocess: it would not start, would not answer, or answered something that was not a reply.

Env(String)

Building or updating an isolated environment.

Encoding(String)

A payload that would not encode or decode. Distinct from WorkerError::Transport: the bytes arrived, they were wrong.

Concurrency(String)

A lock was poisoned or a worker thread panicked. Means some other error already happened and took a thread with it.

Remote(String)

The remote worker ran the plan and reported a failure. The message is the worker’s, not ours.

Io(Error)

Filesystem or process I/O, kept as the original io::Error so callers can still match on its kind.

Core(SomaError)

A failure that came from the shared core — a cache miss that mattered, a bad graph — and is passed through unchanged.

Trait Implementations

impl Debug for WorkerError

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

Formats the value using the given formatter.

impl Display for WorkerError

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

Formats the value using the given formatter.

impl Error for WorkerError

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 WorkerError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<SomaError> for WorkerError

fn from(source: SomaError) -> Self

Converts to this type from the input type.

impl From<WorkerError> for SomaError

The seam. A worker error crossing into the runtime keeps its message and its prefix, so transport: WS connect: … still says which layer failed even after the type is gone.

fn from(e: WorkerError) -> Self

Converts to this type from the input type.