Bump tracing-subscriber from 0.2.25 to 0.3.0

[dependabot[bot]]

Bumps tracing-subscriber from 0.2.25 to 0.3.0.

Release notes

Sourced from tracing-subscriber's releases.

tracing-subscriber v0.3.0

0.3.0 (Oct 22, 2021)

This is a breaking release of tracing-subscriber. The primary breaking change in this release is the removal of the dependency on the [chrono crate], due to [RUSTSEC-2020-0159]. To replace chrono, support is added for formatting timestamps using the [time crate] instead.

In addition, this release includes a number of other breaking API changes, such as adding (limited) support for #![no_std] targets, removing previously deprecated APIs, and more.

Breaking Changes

• Removed APIs deprecated in the v0.2.x release series.

• Renamed Layer::new_span to Layer::on_new_span (#1674)

• Removed Layer impl for Arc<L: Layer<S>> and Arc<dyn Layer<S> + ...> (#1649)

• Replaced the [chrono crate] with the [time crate] for timestamp formatting, to resolve [RUSTSEC-2020-0159] (#1646)

• Removed json and env-filter from default features. They must now be enabled explicitly (#1647)

• Changed FormatEvent::format_event and FormatFields::format_fields trait methods to take a Writer type, rather than a &mut dyn fmt::Write trait object (#1661)

• Changed the signature of the MakeWriter trait by adding a lifetime parameter (#781)

  Changed

• layer: Renamed Layer::new_span to Layer::on_new_span (#1674)

• fmt: Changed FormatEvent::format_event and FormatFields::format_fields trait methods to take a Writer type, rather than a &mut dyn fmt::Write trait object (#1661)

• json, env-filter: json and env-filter feature flags are no longer enabled by default (#1647)

  Removed

• Removed deprecated CurrentSpan type (#1320)

• registry: Removed deprecated SpanRef::parents iterator, replaced by SpanRef::scope in #1431 ([#1648)])

• layer: Removed deprecated Context::scope iterator, replaced by Context::span_scope and Context::event_scope in #1431 and #1434 (#1648)

• layer: Removed Layer impl for Arc<L: Layer<S>> and Arc<dyn Layer<S> + ...>. These interfere with per-layer filtering. (#1649)

• fmt: Removed deprecated LayerBuilder type (#1673)

• fmt: Removed fmt::Layer::on_event (renamed to fmt::Layer::fmt_event) (#1673)

... (truncated)

Commits

• 4e56741 subscriber: prepare to release v0.3.0 (#1677)
• f461c5b appender: fix compilation 32-bit platforms like PowerPC (#1675)
• 8777d2c subscriber: rename Layer::new_span to on_new_span (#1674)
• c62dac9 appender: replace chrono with time (#1652)
• 60a2644 chore: add CI env variable configurations (#1672)
• ffdce75 docs: add blog posts as external resources (#1667)
• d019e43 core: update parent() documentation (#1665)
• f5aac47 attributes: refactor into separate modules (#1643)
• 8540abc attributes: speculative expand when parsing fails (#1634)
• f515e9d attributes: add err(Debug) meta to use Debug impl (#1631)
• Additional commits viewable in compare view

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