Enum Crash 

pub enum Crash {
    Failed,
    EnvironmentFailed,
    Panicked,
    Cancelled,
}

Why actor execution terminated abnormally.

The reason value stays with the interpreter: heterogeneous behavior and environment errors, panic payloads, and executor cancellation details are runtime plumbing. Observation carries only the statically known terminal domain. Every variant is abnormal; the distinction is preserved for supervision policy and truthful traces.

This classification is Bombay policy layered over the actor algebra. It does not add an effect to a behavior transition: interpreters mint a Crash only when execution terminates without an Exit.

Variants

Failed

Behavior::init or Behavior::step returned its declared error.

EnvironmentFailed

The interpreter could not execute an emitted effect and terminated the actor.

Panicked

Actor execution unwound through a panic.

Cancelled

The executor cancelled actor execution before normal completion.

Trait Implementations

impl Clone for Crash

fn clone(&self) -> Crash

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Crash

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

Formats the value using the given formatter.

impl PartialEq for Crash

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Crash

impl Eq for Crash

impl StructuralPartialEq for Crash