tracing-subscriber 0.2.14

0.2.14 (October 22, 2020)

Fixed

• registry: Fixed Registry::new allocating an excessively large amount of
  memory, most of which would never be used (#1064)

Changed

• registry: Improved new_span performance by reusing HashMap allocations
  for Extensions (#1064)
• registry: Significantly improved the performance of Registry::enter and
  Registry::exit (#1058)