0.1.3 (July 11, 2019) Added - Log messages when a subscriber indicates that a span has closed, when the `log` feature flag is enabled (#180). Changed - `tracing-core` minimum dependency version to 0.1.2 (#174). Fixed - Fixed an issue where event macro invocations with a single field, using local variable shorthand, would recur infinitely (#166). - Fixed uses of deprecated `tracing-core` APIs (#174).