Auto merge of rust-lang#76210 - Mark-Simulacrum:tracing-update, r=oli-obk

Tracing update

This does not bring the more significant changes that are coming down the pipeline, but since I've already prepared the PR leaving it up :)

See rust-lang#76210 (comment):
> Unfortunately, tracing 0.1.20 — which contained the change to reduce the amount of code generated by the tracing macros — had to be yanked, as it broke previously-compiling code for some downstream crates. I've not yet had the chance to fix this and release a new patch. So, in order to benefit from the changes to reduce generated code, you'll need to wait until there's a new version of tracing as well as tracing-attributes and tracing-core.

Author: bors

Cargo.lock

@@ -4985,9 +4985,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-attributes"
-version = "0.1.10"
+version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fe233f4227389ab7df5b32649239da7ebe0b281824b4e84b342d04d3fd8c25e"
+checksum = "80e0ccfc3378da0cce270c946b676a376943f5cd16aeba64568e7939806f4ada"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4996,9 +4996,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.14"
+version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db63662723c316b43ca36d833707cc93dff82a02ba3d7e354f342682cc8b3545"
+checksum = "4f0e00789804e99b20f12bc7003ca416309d28a6f495d6af58d1e2c2842461b5"
 dependencies = [
  "lazy_static",
 ]