PropertyDamage.Progress.MutationUpdate (PropertyDamage v0.2.0)
View SourceIntermediate progress for PropertyDamage.Mutation.run/1 (DR-022): the outcome
of testing a single mutation. Not the authoritative result — see
PropertyDamage.Progress.MutationResult.
One update is emitted per mutation as it is killed, survived, or timed out.
Each update is self-contained: it names the command whose events were mutated,
the operator that produced the mutation, the result, an optional
failure_message (present when the mutation was killed), and the wall-clock
duration_ms of that mutation's test.