ci: verify MSRV on CI

.github/workflows/rust.yml

@@ -100,3 +100,27 @@ jobs:
         run: rustup component add rustfmt
       - name: Run
         run: cargo fmt --all -- --check
+
+  msrv:
+    name: Verify MSRV
+    runs-on: ubuntu-latest
+    container:
+      image: amd64/rust
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Rust toolchain
+        uses: ./.github/actions/setup-builder
+      - name: Install cargo-msrv
+        run: cargo install cargo-msrv
+      - name: Check arrow
+        working-directory: arrow
+        run: cargo msrv verify
+      - name: Check parquet
+        working-directory: parquet
+        run: cargo msrv verify
+      - name: Check arrow-flight
+        working-directory: arrow-flight
+        run: cargo msrv verify
+      - name: Check object_store
+        working-directory: object_store
+        run: cargo msrv verify

arrow-flight/Cargo.toml

@@ -26,6 +26,8 @@ homepage = { workspace = true }
 repository = { workspace = true }
 license = { workspace = true }
 
+metadata.msrv = "1.70.0"
+
 [dependencies]
 arrow-arith = { workspace = true, optional = true }
 arrow-array = { workspace = true }

arrow/Cargo.toml

@@ -33,6 +33,8 @@ include = [
 edition = { workspace = true }
 rust-version = { workspace = true }
 
+metadata.msrv = "1.70.0"
+
 [lib]
 name = "arrow"
 path = "src/lib.rs"

object_store/Cargo.toml

@@ -25,6 +25,8 @@ description = "A generic object store interface for uniformly interacting with A
 keywords = ["object", "storage", "cloud"]
 repository = "https://github.com/apache/arrow-rs/tree/master/object_store"
 
+metadata.msrv = "1.62.1"
+
 [package.metadata.docs.rs]
 all-features = true
 

parquet/Cargo.toml

@@ -28,6 +28,8 @@ readme = "README.md"
 edition = { workspace = true }
 rust-version = { workspace = true }
 
+metadata.msrv = "1.70.0"
+
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 ahash = { version = "0.8", default-features = false, features = ["compile-time-rng"] }