Fix Vec implementation of tracing_subscriber::layer::Layer #2644
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Motivation
The
Layer
implementation for aVec
was introduced in #2027, and a bug in theLayer::enabled()
trait method was introduced in 28e55d2, then was further transformed in 012da66.Solution
This PR fixes the
Layer::enabled()
andLayer::event_enabled()
methods by usingfold
and inverting the incorrect condition.