From ae455ed8a794bedee3fa25e2c890535368377544 Mon Sep 17 00:00:00 2001
From: Jesse Braham <jessebraham@users.noreply.github.com>
Date: Tue, 15 Aug 2023 06:39:36 -0700
Subject: [PATCH] Switch RISC-V MSRV to `nightly` release channel (#725)

* Use `nightly` release for MSRV check

* Un-pin the `log` package version
---
 .github/workflows/ci.yml  | 3 ++-
 README.md                 | 3 ++-
 esp-hal-common/Cargo.toml | 2 +-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0cbb6eac9..3727be413 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -403,7 +403,8 @@ jobs:
       - uses: dtolnay/rust-toolchain@v1
         with:
           target: riscv32imc-unknown-none-elf, riscv32imac-unknown-none-elf
-          toolchain: "1.65.0"
+          toolchain: "nightly-2022-09-16"
+          components: rust-src
       - uses: Swatinem/rust-cache@v2
 
       # Verify the MSRV for all RISC-V chips.
diff --git a/README.md b/README.md
index a5ffcf9e7..c88d26eac 100644
--- a/README.md
+++ b/README.md
@@ -90,7 +90,8 @@ There are a number of other crates within the [esp-rs organization] which can be
 
 The **M**inimum **S**upported **R**ust **V**ersions are:
 
-- `1.65.0` for RISC-V devices (**ESP32-C2**, **ESP32-C3**, **ESP32-C6**, **ESP32-H2**)
+- `nightly-2022-09-16` for RISC-V devices (**ESP32-C2**, **ESP32-C3**, **ESP32-C6**, **ESP32-H2**)
+  - This corresponds to the date that the `1.65.0` release was branched from `master`
 - `1.65.0` for Xtensa devices (**ESP32**, **ESP32-S2**, **ESP32-S3**)
 - `1.67.0` for all `async` examples (`embassy_hello_world`, `embassy_wait`, etc.)
 
diff --git a/esp-hal-common/Cargo.toml b/esp-hal-common/Cargo.toml
index 0d1d126b3..5a096a880 100644
--- a/esp-hal-common/Cargo.toml
+++ b/esp-hal-common/Cargo.toml
@@ -23,7 +23,7 @@ embedded-hal-1       = { version = "=1.0.0-alpha.11", optional = true, package =
 embedded-hal-nb      = { version = "=1.0.0-alpha.3", optional = true }
 esp-synopsys-usb-otg = { version = "0.3.2", optional = true, features = ["fs", "esp32sx"] }
 fugit                = "0.3.7"
-log                  = "=0.4.18"
+log                  = "0.4.20"
 lock_api             = { version = "0.4.10", optional = true }
 nb                   = "1.1.0"
 paste                = "1.0.14"