Module attempt_runner 

Attempt runner for local executor orchestration.

The runner composes three concerns for a single attempt execution:

• handler invocation with explicit run/attempt identity,
• timeout classification and enforcement with explicit cancellation-poll cadence evidence,
• retry-decision input generation from the terminal attempt outcome.

This module intentionally does not mutate run derivation/accounting state.

Structs

AttemptOutcomeRecord

Terminal record for one completed attempt execution.

AttemptRunner

Runs single-attempt executions by composing handler, timeout, and retry input derivation.

RetryDecisionInput

Retry input payload derived from one completed attempt.

SystemAttemptTimer

System monotonic timer based on Instant.

TimeoutCadencePolicy

Policy surface controlling timeout cancellation-poll cadence enforcement.

TimeoutCooperationMetrics

Concrete timeout-cooperation metric sink for attempt outcomes.

TimeoutCooperationMetricsSnapshot

Snapshot of timeout-cooperation metric counters.

TimeoutEnforcementReport

Inspectable timeout-enforcement report for one attempt.

Enums

AttemptOutcomeKind

Classification of a terminal attempt outcome for retry-decision inputs.

TimeoutCooperation

Cooperative-cancellation status for timeout enforcement.

Traits

AttemptTimer

Monotonic timer abstraction used for timeout enforcement.