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Application level tracing for Rust.

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## Bug Report ### Version tracing v0.1.34 tracing-subscriber v0.3.11 ### Platform ```sh $ uname -r 21.5.0 ``` (MacOS 12.4) ### Crates tracing-subscriber ### Description We have an event that logs...

## Feature Request ### Crates tracing-appender ### Motivation The non-blocking writer implementation currently allocates strings and sends them over the channel, resulting in observed writing speeds of 10-15µs to write...

crate/appender

(With humble apologies to the CODEOWNERS getting pinged for mechanical changes...) ***Best reviewed commit-by-commit***. I've gone to lengths to ensure that each commit is a semantically meaninful chunk on its...

## Bug Report ### Version 0.1.29 ### Description I have recently experimented with various lazy/non-lazy `fn() -> impl Future` code, as there are subtle differences that can break other code....

kind/bug
crate/attributes

Fixes: #2157 ## Motivation My main motivation was to improve the user-experience by returning a *more* concrete error type without a `Box` around it, which makes it more compatible with...

## Feature Request [`tracing_subscriber::fmt::try_init`](https://docs.rs/tracing-subscriber/0.3.11/tracing_subscriber/fmt/fn.try_init.html) currently returns `Result

## Bug Report ### Version ``` │ │ │ │ │ └── tracing v0.1.34 │ │ │ │ │ │ ├── tracing-attributes v0.1.21 (proc-macro) │ │ │ │ │ │...

## Feature Request ### Crates The [tracing-appender](https://github.com/tokio-rs/tracing/tree/master/tracing-appender) ### Motivation In a constraint environment, we should be able to contain the logging size and period. Let's say we want temporary logging...

kind/feature
crate/appender

This is a rough draft of an API for passing timestamps into _any_ formatter, rather than just ones that use `fmt::Format`. I haven't done all of the plumbing for this...

I'm currently on a mission to reduce dependency counts in a project, and `pin-project` is one offender. Most of the ecosystem has switched over to `pin-project-lite` where possible, so it...