Update and test MSRV

Author: bugadani

.github/workflows/ci.yml

@@ -9,25 +9,29 @@ on:
     - cron: '50 4 * * *'
   workflow_dispatch:
 
-env:
-  rust_toolchain: nightly
-
 jobs:
   compile:
     name: Compile
     runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        rust_toolchain:
+          - nightly
+          - 1.83 # MSRV
+
     steps:
       - name: Setup | Checkout
         uses: actions/checkout@v2
       - name: Setup | Rust
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: ${{ env.rust_toolchain }}
+          toolchain: ${{ matrix.rust_toolchain }}
           components: rustfmt, clippy
       - name: Setup | Std
-        run: rustup component add rust-src --toolchain ${{ env.rust_toolchain }}-x86_64-unknown-linux-gnu
+        run: rustup component add rust-src --toolchain ${{ matrix.rust_toolchain }}-x86_64-unknown-linux-gnu
       - name: Setup | Set default toolchain
-        run: rustup default ${{ env.rust_toolchain }}
+        run: rustup default ${{ matrix.rust_toolchain }}
       - name: Build | Fmt Check
         run: cargo fmt -- --check
       - name: Build | Clippy

Cargo.toml

@@ -3,7 +3,7 @@ name = "async-io-mini"
 version = "0.3.0"
 authors = ["Stjepan Glavina <[email protected]>", "Ivan Markov"]
 edition = "2021"
-rust-version = "1.77"
+rust-version = "1.83"
 description = "Async I/O fork for embedded systems"
 license = "Apache-2.0 OR MIT"
 repository = "https://github.com/ivmarkov/async-io-mini"