roll: third_party/pigweed b15aa11..79c3430 (2 commits)

79c3430:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/246552 pw_build: Support specify rust macro toolchain
98aec6f:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/247353 pw_channel: Add guidance about when to implement Channel

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: b15aa110270be4..79c3430719bc8e
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8732052104230782577
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Id2d3c1e6d59d2451ca03e24737ef82a1c2255ef9
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/247103
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index b15aa11..79c3430 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit b15aa110270be4e28d5945a80bbc0a2fc34ba38e
+Subproject commit 79c3430719bc8e3320eb2612303e7040baae2001