fixup! Document MSRV and check it in CI

Author: robin-nitrokey

.github/workflows/ci.yml

@@ -90,8 +90,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - name: Install Rust toolchain
-        run: rustup override set 1.73
-      - name: Build
-        run: cargo build --workspace --all-features
-
+      - name: Install Rust toolchain for littlefs2-core
+        run: rustup override set 1.74
+      - name: Build littlefs2-core
+        # do not build heapless09 as it requires a newer Rust version
+        run: cargo build --package littlefs2-core --features heapless-bytes03,heapless-bytes04,heapless07,heapless08,serde,debug-error
+      - name: Install Rust toolchain for littlefs2
+        run: rustup override set 1.87
+      - name: Build littlefs2
+        run: cargo build --package littlefs2 --all-features

Cargo.toml

@@ -5,7 +5,6 @@ members = ["core"]
 edition = "2021"
 license = "Apache-2.0 OR MIT"
 repository = "https://github.com/trussed-dev/littlefs2"
-rust-version = "1.73"
 
 [package]
 name = "littlefs2"
@@ -15,11 +14,11 @@ authors = ["Nicolas Stalder <n@stalder.io>", "Brandon Edens <brandonedens@gmail.
 readme = "README.md"
 categories = ["embedded", "filesystem", "no-std"]
 documentation = "https://docs.rs/littlefs2"
+rust-version = "1.87"
 
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [package.metadata.docs.rs]
 all-features = true

core/Cargo.toml

@@ -3,11 +3,11 @@ name = "littlefs2-core"
 version = "0.1.2"
 authors = ["The Trussed developers"]
 description = "Core types for the littlefs2 crate"
+rust-version = "1.74"
 
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
-rust-version.workspace = true
 
 [dependencies]
 bitflags = "2.6.0"