vendor/tracing-attributes-0.1.27/CHANGELOG.md - toolchain/rustc - Git at Google

 # 0.1.27 (October 13, 2023)

 ### Changed

 - Bump minimum version of proc-macro2 to 1.0.60 ([#2732])
 - Generate less dead code for async block return type hint ([#2709])

 ### Fixed

 - Fix a compilation error in `#[instrument]` when the `"log"` feature is enabled ([#2599])

 [#2732]: https://github.com/tokio-rs/tracing/pull/2732
 [#2709]: https://github.com/tokio-rs/tracing/pull/2709
 [#2599]: https://github.com/tokio-rs/tracing/pull/2599

 # 0.1.26 (June 21th, 2023)

 This release of `tracing-attributes` fixes warnings due to `allow` attributes in
 generated code that allow lints which may not exist on earlier versions of rustc.

 ### Fixed

 - Allow `unknown_lints` in macro-generated code ([#2626])

 Thanks to @mladedav for contributing to this release!

 # 0.1.25 (June 19th, 2023)

 This release of `tracing-attributes` fixes the Clippy lint
 [`let_with_type_underscore`] in code generated by the `#[instrument]`
 attribute in Rust 1.70+.

 ### Fixed

 - Allow [`clippy::let_with_type_underscore`] in macro-generated code ([#2609])

 Thanks to @coolreader19 for contributing to this release!

 [#2609]: https://github.com/tokio-rs/tracing/pull/2609

 [`let_with_type_underscore`]: http://rust-lang.github.io/rust-clippy/rust-1.70.0/index.html#let_with_type_underscore

 # 0.1.24 (April 24th, 2023)

 This release of `tracing-attributes` adds support for passing an optional
 `level` to the `err` and `ret` arguments to `#[instrument]`, allowing the level
 of the generated return-value event to be overridden. For example,

 ```rust
 #[instrument(err(level = "info"))]
 fn my_great_function() -> Result<(), &'static str> {
     // ...
 }
 ```

 will emit an `INFO`-level event if the function returns an `Err`.

 In addition, this release updates the [`syn`] dependency to v2.x.x.

 ### Added

 - `level` argument to `err` and `ret` to override the level of the generated
   return value event ([#2335])
 - Improved compiler error message when `#[instrument]` is added to a `const fn`
   ([#2418])

 ### Changed

 - Updated `syn` dependency to 2.0 ([#2516])

 ### Fixed

 - Fix `clippy::unreachable` warnings in `#[instrument]`-generated code ([#2356])
 - Removed unused "visit" feature flag from `syn` dependency ([#2530])

 ### Documented

 - Documented default level for `err` ([#2433])
 - Improved documentation for levels in `#[instrument]` ([#2350])

 Thanks to @nitnelave, @jsgf, @Abhicodes-crypto, @LukeMathWalker, @andrewpollack,
 @quad, @klensy, @davidpdrsn, and @dbidwell94 for contributign to this release!

 [`syn`]: https://crates.io/crates/syn
 [#2335]: https://github.com/tokio-rs/tracing/pull/2335
 [#2418]: https://github.com/tokio-rs/tracing/pull/2418
 [#2516]: https://github.com/tokio-rs/tracing/pull/2516
 [#2356]: https://github.com/tokio-rs/tracing/pull/2356
 [#2530]: https://github.com/tokio-rs/tracing/pull/2530
 [#2433]: https://github.com/tokio-rs/tracing/pull/2433
 [#2350]: https://github.com/tokio-rs/tracing/pull/2350

 # 0.1.23 (October 6, 2022)

 This release of `tracing-attributes` fixes a bug where compiler diagnostic spans
 for type errors in `#[instrument]`ed `async fn`s have the location of the
 `#[instrument]` attribute rather than the location of the actual error, and a
 bug where inner attributes in `#[instrument]`ed functions would cause a compiler
 error.

 ### Fixed

 - Fix incorrect handling of inner attributes in `#[instrument]`ed functions ([#2307])
 - Add fake return to improve spans generated for type errors in `async fn`s ([#2270])
 - Updated `syn` dependency to fix compilation with `-Z minimal-versions`
   ([#2246])

 Thanks to new contributors @compiler-errors and @e-nomem, as well as @CAD97, for
 contributing to this release!

 [#2307]: https://github.com/tokio-rs/tracing/pull/2307
 [#2270]: https://github.com/tokio-rs/tracing/pull/2270
 [#2246]: https://github.com/tokio-rs/tracing/pull/2246

 # 0.1.22 (July 1, 2022)

 This release fixes an issue where using the `err` or `ret` arguments to
 `#[instrument]` along with an overridden target, such as

 ```rust
 #[instrument(target = "...", err, ret)]
 ```

 would not propagate the overridden target to the events generated for
 errors/return values.

 ### Fixed

 - Error and return value events generated by `#[instrument(err)]` or
   `#[instrument(ret)]` not inheriting an overridden target ([#2184])
 - Incorrect default level in documentation ([#2119])

 Thanks to new contributor @tbraun96 for contributing to this release!

 [#2184]: https://github.com/tokio-rs/tracing/pull/2184
 [#2119]: https://github.com/tokio-rs/tracing/pull/2119

 # 0.1.21 (April 26, 2022)

 This release adds support for setting explicit parent and follows-from spans
 in the `#[instrument]` attribute.

 ### Added

 - `#[instrument(follows_from = ...)]` argument for setting one or more
   follows-from span ([#2093])
 - `#[instrument(parent = ...)]` argument for overriding the generated span's
   parent ([#2091])

 ### Fixed

 - Extra braces around `async` blocks in expanded code (causes a Clippy warning)
   ([#2090])
 - Broken documentation links ([#2068], [#2077])

 Thanks to @jarrodldavis, @ben0x539, and new contributor @jswrenn for
 contributing to this release!


 [#2093]: https://github.com/tokio-rs/tracing/pull/2093
 [#2091]: https://github.com/tokio-rs/tracing/pull/2091
 [#2090]: https://github.com/tokio-rs/tracing/pull/2090
 [#2077]: https://github.com/tokio-rs/tracing/pull/2077
 [#2068]: https://github.com/tokio-rs/tracing/pull/2068

 # 0.1.20 (March 8, 2022)

 ### Fixed

 - Compilation failure with `--minimal-versions` due to a too-permissive `syn`
   dependency ([#1960])

 ### Changed

 - Bumped minimum supported Rust version (MSRV) to 1.49.0 ([#1913])

 Thanks to new contributor @udoprog for contributing to this release!

 [#1960]: https://github.com/tokio-rs/tracing/pull/1960
 [#1913]: https://github.com/tokio-rs/tracing/pull/1913

 # 0.1.19 (February 3, 2022)

 This release introduces a new `#[instrument(ret)]` argument to emit an event
 with the return value of an instrumented function.

 ### Added

 - `#[instrument(ret)]` to record the return value of a function ([#1716])
 - added `err(Debug)` argument to cause `#[instrument(err)]` to record errors
   with `Debug` rather than `Display ([#1631])

 ### Fixed

 - incorrect code generation for functions returning async blocks ([#1866])
 - incorrect diagnostics when using `rust-analyzer` ([#1634])

 Thanks to @Swatinem, @hkmatsumoto, @cynecx, and @ciuncan for contributing to
 this release!

 [#1716]: https://github.com/tokio-rs/tracing/pull/1716
 [#1631]: https://github.com/tokio-rs/tracing/pull/1631
 [#1634]: https://github.com/tokio-rs/tracing/pull/1634
 [#1866]: https://github.com/tokio-rs/tracing/pull/1866

 # 0.1.18 (October 5, 2021)

 This release fixes issues introduced in v0.1.17.

 ### Fixed

 - fixed mismatched types compiler error that may occur when using
   `#[instrument]` on an `async fn` that returns an `impl Trait` value that
   includes a closure ([#1616])
 - fixed false positives for `clippy::suspicious_else_formatting` warnings due to
   rust-lang/rust-clippy#7760 and rust-lang/rust-clippy#6249 ([#1617])
 - fixed `clippy::let_unit_value` lints when using `#[instrument]` ([#1614])

 [#1617]: https://github.com/tokio-rs/tracing/pull/1617
 [#1616]: https://github.com/tokio-rs/tracing/pull/1616
 [#1614]: https://github.com/tokio-rs/tracing/pull/1614

 # 0.1.17 (YANKED) (October 1, 2021)

 This release significantly improves performance when `#[instrument]`-generated
 spans are below the maximum enabled level.

 ### Added

 - improve performance when skipping `#[instrument]`-generated spans below the
   max level ([#1600], [#1605])

 Thanks to @oli-obk for contributing to this release!

 [#1600]: https://github.com/tokio-rs/tracing/pull/1600
 [#1605]: https://github.com/tokio-rs/tracing/pull/1605

 # 0.1.16 (September 13, 2021)

 This release adds a new `#[instrument(skip_all)]` option to skip recording *all*
 arguments to an instrumented function as fields. Additionally, it adds support
 for recording arguments that are `tracing` primitive types as typed values,
 rather than as `fmt::Debug`.

 ### Added

 - add `skip_all` option to `#[instrument]` ([#1548])
 - record primitive types as primitive values rather than as `fmt::Debug`
   ([#1378])
 - added support for `f64`s as typed values ([#1522])

 Thanks to @Folyd and @jsgf for contributing to this release!

 [#1548]: https://github.com/tokio-rs/tracing/pull/1548
 [#1378]: https://github.com/tokio-rs/tracing/pull/1378
 [#1522]: https://github.com/tokio-rs/tracing/pull/1524

 # 0.1.15 (March 12, 2021)

 ### Fixed

 - `#[instrument]` on functions returning `Box::pin`ned futures incorrectly
   skipping function bodies prior to returning a future ([#1297])

 Thanks to @nightmared for contributing to this release!

 [#1297]: https://github.com/tokio-rs/tracing/pull/1297

 # 0.1.14 (March 10, 2021)

 ### Fixed

 - Compatibility between `#[instrument]` and `async-trait` v0.1.43 and newer
   ([#1228])

 Thanks to @nightmared for lots of hard work on this fix!

 [#1228]: https://github.com/tokio-rs/tracing/pull/1228

 # 0.1.13 (February 17, 2021)

 ### Fixed

 - Compiler error when using `#[instrument(err)]` on functions which return `impl
   Trait` ([#1236])

 [#1236]: https://github.com/tokio-rs/tracing/pull/1236

 # 0.1.12 (February 4, 2021)

 ### Fixed

 - Compiler error when using `#[instrument(err)]` on functions with mutable
   parameters ([#1167])
 - Missing function visibility modifier when using `#[instrument]` with
   `async-trait` ([#977])
 - Multiple documentation fixes and improvements ([#965], [#981], [#1215])

 ### Changed

 - `tracing-futures` dependency is no longer required when using `#[instrument]`
   on async functions ([#808])

 Thanks to @nagisa, @Txuritan, @TaKO8Ki, and @okready for contributing to this
 release!

 [#1167]: https://github.com/tokio-rs/tracing/pull/1167
 [#977]: https://github.com/tokio-rs/tracing/pull/977
 [#965]: https://github.com/tokio-rs/tracing/pull/965
 [#981]: https://github.com/tokio-rs/tracing/pull/981
 [#1215]: https://github.com/tokio-rs/tracing/pull/1215
 [#808]: https://github.com/tokio-rs/tracing/pull/808

 # 0.1.11 (August 18, 2020)

 ### Fixed

 - Corrected wrong minimum supported Rust version note in docs (#941)
 - Removed unused `syn` features (#928)

 Thanks to new contributor @jhpratt for contributing to this release!

 # 0.1.10 (August 10, 2020)

 ### Added

 - Support for using `self` in field expressions when instrumenting `async-trait`
   functions (#875)
 - Several documentation improvements (#832, #897, #911, #913)

 Thanks to @anton-dutov and @nightmared for contributing to this release!

 # 0.1.9 (July 8, 2020)

 ### Added

 - Support for arbitrary expressions as fields in `#[instrument]` (#672)

 ### Changed

 - `#[instrument]` now emits a compiler warning when ignoring unrecognized
   input (#672, #786)

 # 0.1.8 (May 13, 2020)

 ### Added

 - Support for using `#[instrument]` on methods that are part of [`async-trait`]
   trait implementations (#711)
 - Optional `#[instrument(err)]` argument to automatically emit an event if an
   instrumented function returns `Err` (#637)

 Thanks to @ilana and @nightmared for contributing to this release!

 [`async-trait`]: https://crates.io/crates/async-trait

 # 0.1.7 (February 26, 2020)

 ### Added

 - Support for adding arbitrary literal fields to spans generated by
   `#[instrument]` (#569)
 - `#[instrument]` now emits a helpful compiler error when attempting to skip a
   function parameter (#600)

 Thanks to @Kobzol for contributing to this release!

 # 0.1.6 (December 20, 2019)

 ### Added

 -  Updated documentation (#468)

 # 0.1.5 (October 22, 2019)

 ### Added

 - Support for destructuring in arguments to `#[instrument]`ed functions (#397)
 - Generated field for `self` parameters when `#[instrument]`ing methods (#397)

 # 0.1.4 (September 26, 2019)

 ### Added

 - Optional `skip` argument to `#[instrument]` for excluding function parameters
   from generated spans (#359)

 # 0.1.3 (September 12, 2019)

 ### Fixed

 - Fixed `#[instrument]`ed async functions not compiling on `nightly-2019-09-11`
   or newer (#342)

 # 0.1.2 (August 19, 2019)

 ### Changed

 - Updated `syn` and `quote` dependencies to 1.0 (#292)
 - Removed direct dependency on `proc-macro2` to avoid potential version
   conflicts (#296)

 ### Fixed

 - Outdated idioms in examples (#271, #273)

 # 0.1.1 (August 9, 2019)

 ### Changed

 - Using the `#[instrument]` attribute on `async fn`s no longer requires a
   feature flag (#258)

 ### Fixed

 - The `#[instrument]` macro now works on generic functions (#262)

 # 0.1.0 (August 8, 2019)

 - Initial release
	# 0.1.27 (October 13, 2023)

	### Changed

	- Bump minimum version of proc-macro2 to 1.0.60 ([#2732])
	- Generate less dead code for async block return type hint ([#2709])

	### Fixed

	- Fix a compilation error in `#[instrument]` when the `"log"` feature is enabled ([#2599])

	[#2732]: https://github.com/tokio-rs/tracing/pull/2732
	[#2709]: https://github.com/tokio-rs/tracing/pull/2709
	[#2599]: https://github.com/tokio-rs/tracing/pull/2599

	# 0.1.26 (June 21th, 2023)

	This release of `tracing-attributes` fixes warnings due to `allow` attributes in
	generated code that allow lints which may not exist on earlier versions of rustc.

	### Fixed

	- Allow `unknown_lints` in macro-generated code ([#2626])

	Thanks to @mladedav for contributing to this release!

	# 0.1.25 (June 19th, 2023)

	This release of `tracing-attributes` fixes the Clippy lint
	[`let_with_type_underscore`] in code generated by the `#[instrument]`
	attribute in Rust 1.70+.

	### Fixed

	- Allow [`clippy::let_with_type_underscore`] in macro-generated code ([#2609])

	Thanks to @coolreader19 for contributing to this release!

	[#2609]: https://github.com/tokio-rs/tracing/pull/2609

	[`let_with_type_underscore`]: http://rust-lang.github.io/rust-clippy/rust-1.70.0/index.html#let_with_type_underscore

	# 0.1.24 (April 24th, 2023)

	This release of `tracing-attributes` adds support for passing an optional
	`level` to the `err` and `ret` arguments to `#[instrument]`, allowing the level
	of the generated return-value event to be overridden. For example,

	```rust
	#[instrument(err(level = "info"))]
	fn my_great_function() -> Result<(), &'static str> {
	// ...
	}
	```

	will emit an `INFO`-level event if the function returns an `Err`.

	In addition, this release updates the [`syn`] dependency to v2.x.x.

	### Added

	- `level` argument to `err` and `ret` to override the level of the generated
	return value event ([#2335])
	- Improved compiler error message when `#[instrument]` is added to a `const fn`
	([#2418])

	### Changed

	- Updated `syn` dependency to 2.0 ([#2516])

	### Fixed

	- Fix `clippy::unreachable` warnings in `#[instrument]`-generated code ([#2356])
	- Removed unused "visit" feature flag from `syn` dependency ([#2530])

	### Documented

	- Documented default level for `err` ([#2433])
	- Improved documentation for levels in `#[instrument]` ([#2350])

	Thanks to @nitnelave, @jsgf, @Abhicodes-crypto, @LukeMathWalker, @andrewpollack,
	@quad, @klensy, @davidpdrsn, and @dbidwell94 for contributign to this release!

	[`syn`]: https://crates.io/crates/syn
	[#2335]: https://github.com/tokio-rs/tracing/pull/2335
	[#2418]: https://github.com/tokio-rs/tracing/pull/2418
	[#2516]: https://github.com/tokio-rs/tracing/pull/2516
	[#2356]: https://github.com/tokio-rs/tracing/pull/2356
	[#2530]: https://github.com/tokio-rs/tracing/pull/2530
	[#2433]: https://github.com/tokio-rs/tracing/pull/2433
	[#2350]: https://github.com/tokio-rs/tracing/pull/2350

	# 0.1.23 (October 6, 2022)

	This release of `tracing-attributes` fixes a bug where compiler diagnostic spans
	for type errors in `#[instrument]`ed `async fn`s have the location of the
	`#[instrument]` attribute rather than the location of the actual error, and a
	bug where inner attributes in `#[instrument]`ed functions would cause a compiler
	error.

	### Fixed

	- Fix incorrect handling of inner attributes in `#[instrument]`ed functions ([#2307])
	- Add fake return to improve spans generated for type errors in `async fn`s ([#2270])
	- Updated `syn` dependency to fix compilation with `-Z minimal-versions`
	([#2246])

	Thanks to new contributors @compiler-errors and @e-nomem, as well as @CAD97, for
	contributing to this release!

	[#2307]: https://github.com/tokio-rs/tracing/pull/2307
	[#2270]: https://github.com/tokio-rs/tracing/pull/2270
	[#2246]: https://github.com/tokio-rs/tracing/pull/2246

	# 0.1.22 (July 1, 2022)

	This release fixes an issue where using the `err` or `ret` arguments to
	`#[instrument]` along with an overridden target, such as

	```rust
	#[instrument(target = "...", err, ret)]
	```

	would not propagate the overridden target to the events generated for
	errors/return values.

	### Fixed

	- Error and return value events generated by `#[instrument(err)]` or
	`#[instrument(ret)]` not inheriting an overridden target ([#2184])
	- Incorrect default level in documentation ([#2119])

	Thanks to new contributor @tbraun96 for contributing to this release!

	[#2184]: https://github.com/tokio-rs/tracing/pull/2184
	[#2119]: https://github.com/tokio-rs/tracing/pull/2119

	# 0.1.21 (April 26, 2022)

	This release adds support for setting explicit parent and follows-from spans
	in the `#[instrument]` attribute.

	### Added

	- `#[instrument(follows_from = ...)]` argument for setting one or more
	follows-from span ([#2093])
	- `#[instrument(parent = ...)]` argument for overriding the generated span's
	parent ([#2091])

	### Fixed

	- Extra braces around `async` blocks in expanded code (causes a Clippy warning)
	([#2090])
	- Broken documentation links ([#2068], [#2077])

	Thanks to @jarrodldavis, @ben0x539, and new contributor @jswrenn for
	contributing to this release!


	[#2093]: https://github.com/tokio-rs/tracing/pull/2093
	[#2091]: https://github.com/tokio-rs/tracing/pull/2091
	[#2090]: https://github.com/tokio-rs/tracing/pull/2090
	[#2077]: https://github.com/tokio-rs/tracing/pull/2077
	[#2068]: https://github.com/tokio-rs/tracing/pull/2068

	# 0.1.20 (March 8, 2022)

	### Fixed

	- Compilation failure with `--minimal-versions` due to a too-permissive `syn`
	dependency ([#1960])

	### Changed

	- Bumped minimum supported Rust version (MSRV) to 1.49.0 ([#1913])

	Thanks to new contributor @udoprog for contributing to this release!

	[#1960]: https://github.com/tokio-rs/tracing/pull/1960
	[#1913]: https://github.com/tokio-rs/tracing/pull/1913

	# 0.1.19 (February 3, 2022)

	This release introduces a new `#[instrument(ret)]` argument to emit an event
	with the return value of an instrumented function.

	### Added

	- `#[instrument(ret)]` to record the return value of a function ([#1716])
	- added `err(Debug)` argument to cause `#[instrument(err)]` to record errors
	with `Debug` rather than `Display ([#1631])

	### Fixed

	- incorrect code generation for functions returning async blocks ([#1866])
	- incorrect diagnostics when using `rust-analyzer` ([#1634])

	Thanks to @Swatinem, @hkmatsumoto, @cynecx, and @ciuncan for contributing to
	this release!

	[#1716]: https://github.com/tokio-rs/tracing/pull/1716
	[#1631]: https://github.com/tokio-rs/tracing/pull/1631
	[#1634]: https://github.com/tokio-rs/tracing/pull/1634
	[#1866]: https://github.com/tokio-rs/tracing/pull/1866

	# 0.1.18 (October 5, 2021)

	This release fixes issues introduced in v0.1.17.

	### Fixed

	- fixed mismatched types compiler error that may occur when using
	`#[instrument]` on an `async fn` that returns an `impl Trait` value that
	includes a closure ([#1616])
	- fixed false positives for `clippy::suspicious_else_formatting` warnings due to
	rust-lang/rust-clippy#7760 and rust-lang/rust-clippy#6249 ([#1617])
	- fixed `clippy::let_unit_value` lints when using `#[instrument]` ([#1614])

	[#1617]: https://github.com/tokio-rs/tracing/pull/1617
	[#1616]: https://github.com/tokio-rs/tracing/pull/1616
	[#1614]: https://github.com/tokio-rs/tracing/pull/1614

	# 0.1.17 (YANKED) (October 1, 2021)

	This release significantly improves performance when `#[instrument]`-generated
	spans are below the maximum enabled level.

	### Added

	- improve performance when skipping `#[instrument]`-generated spans below the
	max level ([#1600], [#1605])

	Thanks to @oli-obk for contributing to this release!

	[#1600]: https://github.com/tokio-rs/tracing/pull/1600
	[#1605]: https://github.com/tokio-rs/tracing/pull/1605

	# 0.1.16 (September 13, 2021)

	This release adds a new `#[instrument(skip_all)]` option to skip recording all
	arguments to an instrumented function as fields. Additionally, it adds support
	for recording arguments that are `tracing` primitive types as typed values,
	rather than as `fmt::Debug`.

	### Added

	- add `skip_all` option to `#[instrument]` ([#1548])
	- record primitive types as primitive values rather than as `fmt::Debug`
	([#1378])
	- added support for `f64`s as typed values ([#1522])

	Thanks to @Folyd and @jsgf for contributing to this release!

	[#1548]: https://github.com/tokio-rs/tracing/pull/1548
	[#1378]: https://github.com/tokio-rs/tracing/pull/1378
	[#1522]: https://github.com/tokio-rs/tracing/pull/1524

	# 0.1.15 (March 12, 2021)

	### Fixed

	- `#[instrument]` on functions returning `Box::pin`ned futures incorrectly
	skipping function bodies prior to returning a future ([#1297])

	Thanks to @nightmared for contributing to this release!

	[#1297]: https://github.com/tokio-rs/tracing/pull/1297

	# 0.1.14 (March 10, 2021)

	### Fixed

	- Compatibility between `#[instrument]` and `async-trait` v0.1.43 and newer
	([#1228])

	Thanks to @nightmared for lots of hard work on this fix!

	[#1228]: https://github.com/tokio-rs/tracing/pull/1228

	# 0.1.13 (February 17, 2021)

	### Fixed

	- Compiler error when using `#[instrument(err)]` on functions which return `impl
	Trait` ([#1236])

	[#1236]: https://github.com/tokio-rs/tracing/pull/1236

	# 0.1.12 (February 4, 2021)

	### Fixed

	- Compiler error when using `#[instrument(err)]` on functions with mutable
	parameters ([#1167])
	- Missing function visibility modifier when using `#[instrument]` with
	`async-trait` ([#977])
	- Multiple documentation fixes and improvements ([#965], [#981], [#1215])

	### Changed

	- `tracing-futures` dependency is no longer required when using `#[instrument]`
	on async functions ([#808])

	Thanks to @nagisa, @Txuritan, @TaKO8Ki, and @okready for contributing to this
	release!

	[#1167]: https://github.com/tokio-rs/tracing/pull/1167
	[#977]: https://github.com/tokio-rs/tracing/pull/977
	[#965]: https://github.com/tokio-rs/tracing/pull/965
	[#981]: https://github.com/tokio-rs/tracing/pull/981
	[#1215]: https://github.com/tokio-rs/tracing/pull/1215
	[#808]: https://github.com/tokio-rs/tracing/pull/808

	# 0.1.11 (August 18, 2020)

	### Fixed

	- Corrected wrong minimum supported Rust version note in docs (#941)
	- Removed unused `syn` features (#928)

	Thanks to new contributor @jhpratt for contributing to this release!

	# 0.1.10 (August 10, 2020)

	### Added

	- Support for using `self` in field expressions when instrumenting `async-trait`
	functions (#875)
	- Several documentation improvements (#832, #897, #911, #913)

	Thanks to @anton-dutov and @nightmared for contributing to this release!

	# 0.1.9 (July 8, 2020)

	### Added

	- Support for arbitrary expressions as fields in `#[instrument]` (#672)

	### Changed

	- `#[instrument]` now emits a compiler warning when ignoring unrecognized
	input (#672, #786)

	# 0.1.8 (May 13, 2020)

	### Added

	- Support for using `#[instrument]` on methods that are part of [`async-trait`]
	trait implementations (#711)
	- Optional `#[instrument(err)]` argument to automatically emit an event if an
	instrumented function returns `Err` (#637)

	Thanks to @ilana and @nightmared for contributing to this release!

	[`async-trait`]: https://crates.io/crates/async-trait

	# 0.1.7 (February 26, 2020)

	### Added

	- Support for adding arbitrary literal fields to spans generated by
	`#[instrument]` (#569)
	- `#[instrument]` now emits a helpful compiler error when attempting to skip a
	function parameter (#600)

	Thanks to @Kobzol for contributing to this release!

	# 0.1.6 (December 20, 2019)

	### Added

	- Updated documentation (#468)

	# 0.1.5 (October 22, 2019)

	### Added

	- Support for destructuring in arguments to `#[instrument]`ed functions (#397)
	- Generated field for `self` parameters when `#[instrument]`ing methods (#397)

	# 0.1.4 (September 26, 2019)

	### Added

	- Optional `skip` argument to `#[instrument]` for excluding function parameters
	from generated spans (#359)

	# 0.1.3 (September 12, 2019)

	### Fixed

	- Fixed `#[instrument]`ed async functions not compiling on `nightly-2019-09-11`
	or newer (#342)

	# 0.1.2 (August 19, 2019)

	### Changed

	- Updated `syn` and `quote` dependencies to 1.0 (#292)
	- Removed direct dependency on `proc-macro2` to avoid potential version
	conflicts (#296)

	### Fixed

	- Outdated idioms in examples (#271, #273)

	# 0.1.1 (August 9, 2019)

	### Changed

	- Using the `#[instrument]` attribute on `async fn`s no longer requires a
	feature flag (#258)

	### Fixed

	- The `#[instrument]` macro now works on generic functions (#262)

	# 0.1.0 (August 8, 2019)

	- Initial release