potential binary bloat caused by matchers

[mokurin000]

Feature Request

Crates

tracing-subscriber

Motivation

tracing-subscriber depends on matchers,
which depends on old regex-autometa,
results a huge binary bloating when users want to use latest regex.

While there are two PR to bump dependency, may the owner havn't had time to review.

Proposal

Fork matchers and publish a matchers2 if hawhw don't want to transfer that crate.

Alternatives

Still wait until @hawkw merged the bump-dep PR