Set MSRV to 1.84 and set resolver = 3

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
           - 'async-tokio,gpio_cdev,gpio_sysfs,i2c,spi'
 
         include:
-          - rust: 1.65.0 # MSRV
+          - rust: 1.84.0 # MSRV
             target: x86_64-unknown-linux-gnu
 
           # Test nightly but don't fail
@@ -37,9 +37,6 @@ jobs:
           toolchain: ${{ matrix.rust }}
           target: ${{ matrix.target }}
 
-      - if: ${{ matrix.rust=='1.65.0' }}
-        run: cargo update --precise 2.0.106 --package syn
-
       - name: Install armv7 libraries
         if: ${{ matrix.target == 'armv7-unknown-linux-gnueabihf' }}
         run: |

.github/workflows/clippy.yml

@@ -13,6 +13,6 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.75.0
+          toolchain: 1.84.0
           components: clippy
       - run: cargo clippy --all-features -- --deny=warnings

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+### Changed
+
+- MSRV is now 1.84.0.
+- Set `resolver = "3"`, which implies `resolver.incompatible-rust-versions = "fallback"`
+
 ### Added
 
 - Added async `DelayNs` implementation for `tokio`.

Cargo.toml

@@ -11,6 +11,8 @@ name = "linux-embedded-hal"
 repository = "https://github.com/rust-embedded/linux-embedded-hal"
 version = "0.5.0-alpha.0"
 edition = "2018"
+rust-version = "1.84"
+resolver = "3"
 
 [features]
 gpio_sysfs = ["sysfs_gpio"]

README.md

@@ -31,7 +31,7 @@ With `default-features = false` you can enable the features `gpio_cdev`, `gpio_s
 
 ## Minimum Supported Rust Version (MSRV)
 
-This crate is guaranteed to compile on stable Rust 1.65.0 and up. It *might*
+This crate is guaranteed to compile on stable Rust 1.84.0 and up. It *might*
 compile with older versions but that may change in any new patch release.
 
 ## License

src/timer.rs

@@ -15,7 +15,7 @@ pub trait Periodic {}
 /// # Contract
 ///
 /// - `self.start(count); block!(self.wait());` MUST block for AT LEAST the time specified by
-/// `count`.
+///   `count`.
 ///
 /// *Note* that the implementer doesn't necessarily have to be a *downcounting* timer; it could also
 /// be an *upcounting* timer as long as the above contract is upheld.
@@ -71,9 +71,9 @@ pub trait CountDown {
     /// # Contract
     ///
     /// - If `Self: Periodic`, the timer will start a new count down right after the last one
-    /// finishes.
+    ///   finishes.
     /// - Otherwise the behavior of calling `wait` after the last call returned `Ok` is UNSPECIFIED.
-    /// Implementers are suggested to panic on this scenario to signal a programmer error.
+    ///   Implementers are suggested to panic on this scenario to signal a programmer error.
     fn wait(&mut self) -> nb::Result<(), Self::Error>;
 }