update CI: minimal crates and MSRV

.github/workflows/ci.yml

@@ -9,11 +9,12 @@ concurrency:
   cancel-in-progress: true
 
 env:
-   RUST_BACKTRACE: "1"
-   RUSTFLAGS: "-Dwarnings"
-   RUSTDOCFLAGS: "-Dwarnings"
-   RUSTC_WRAPPER: "sccache"
-   SCCACHE_GHA_ENABLED: "true"
+  MSRV: "1.76"
+  RUST_BACKTRACE: "1"
+  RUSTFLAGS: "-Dwarnings"
+  RUSTDOCFLAGS: "-Dwarnings"
+  RUSTC_WRAPPER: "sccache"
+  SCCACHE_GHA_ENABLED: "true"
 
 jobs:
   lints:
@@ -23,7 +24,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt, clippy
-      - uses: mozilla-actions/[email protected].3
+      - uses: mozilla-actions/[email protected].6
       - run: cargo fmt --check
       - run: cargo clippy --no-deps
       - run: cargo doc --no-deps --document-private-items
@@ -37,9 +38,28 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
-      - uses: mozilla-actions/[email protected].3
+      - uses: mozilla-actions/[email protected].6
       - uses: taiki-e/install-action@nextest
       - run: cargo test
       - run: cargo nextest run
-
-
+  minimal-crates:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@nightly
+      - uses: mozilla-actions/[email protected]
+      - name: cargo check
+        run: |
+          rm -f Cargo.lock
+          cargo +nightly check -Z minimal-versions
+  msrv:
+    runs-on: ubuntu-lates
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ env.MSRV }}
+      - uses: mozilla-actions/[email protected]
+      - name: Check MSRV
+        run: |
+          cargo +$MSRV check

Cargo.toml

@@ -10,6 +10,9 @@ license = "MIT OR Apache-2.0"
 keywords = ["test", "temp", "temporary", "directory"]
 categories = ["development-tools::testing", "filesystem"]
 
+# Sadly this also needs to be updated in .github/workflows/ci.yml
+rust-version = "1.76"
+
 [dependencies]
 anyhow = "1"
 backtrace = "0.3.55"