Update tracing-subscriber requirement from 0.2.18 to 0.3.16

[dependabot]

Updates the requirements on tracing-subscriber to permit the latest version.

Release notes

Sourced from tracing-subscriber's releases.

tracing-subscriber 0.3.16

This release of tracing-subscriber fixes a regression introduced in [v0.3.15][subscriber-0.3.15] where Option::None's Layer implementation would set the max level hint to OFF. In addition, it adds several new APIs, including the Filter::event_enabled method for filtering events based on fields values, and the ability to log internal errors that occur when writing a log line.

This release also replaces the dependency on the unmaintained [ansi-term] crate with the [nu-ansi-term] crate, resolving an informational security advisory ([RUSTSEC-2021-0139]) for [ansi-term]'s maintainance status. This increases the minimum supported Rust version (MSRV) to Rust 1.50+, although the crate should still compile for the previous MSRV of Rust 1.49+ when the ansi feature is not enabled.

Fixed

• layer: Option::None's Layer impl always setting the max_level_hint to LevelFilter::OFF (#2321)
• Compilation with -Z minimal versions (#2246)
• env-filter: Clarify that disabled level warnings are emitted by tracing-subscriber (#2285)

Added

• fmt: Log internal errors to stderr if writing a log line fails (#2102)
• fmt: FmtLayer::log_internal_errors and FmtSubscriber::log_internal_errors methods for configuring whether internal writer errors are printed to stderr (#2102)
• fmt: #[must_use] attributes on builders to warn if a Subscriber is configured but not set as the default subscriber (#2239)
• filter: Filter::event_enabled method for filtering an event based on its fields (#2245, #2251)
• filter: Targets::default_level accessor (#2242)

Changed

• ansi: Replaced dependency on unmaintained ansi-term crate with nu-ansi-term ((#2287, fixes informational advisory [RUSTSEC-2021-0139])
• tracing-core: updated to [0.1.30][core-0.1.30]
• Minimum Supported Rust Version (MSRV) increased to Rust 1.50+ (when the ansi) feature flag is enabled (#2287)

Documented

• fmt: Correct inaccuracies in fmt::init documentation (#2224)
• filter: Fix incorrect doc link in filter::Not combinator (#2249)

Thanks to new contributors @​cgbur, @​DesmondWillowbrook, @​RalfJung, and @​poliorcetics, as well as returning contributors @​CAD97, @​connec, @​jswrenn,

... (truncated)

Commits

• b28c935 subscriber: prepare to release v0.3.16 (#2342)
• ecd7e06 chore(ci): remove requirement for removed job
• a42e963 subscriber: replace unmaintained ansi_term with nu-ansi-term (#2287)
• a4fc92c subscriber: revert "impl LookupSpan for Box\<LS> and Arc\<LS> (#2247)"
• 8e35927 tracing: prepare to release v0.1.37 (#2341)
• 64b221d attributes: prepare to release v0.1.23 (#2340)
• 92cb2f0 attributes: fix handling of inner attributes (#2307)
• 8b01ea9 core: prepare to release v0.1.30 (#2339)
• d7372d7 tracing: add reqwest-tracing to related crates in README (#2331)
• 257f86f opentelemetry: fix metrics docs using value. instead of histogram. (#2326)
• Additional commits viewable in compare view

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