Run CI for the msrv and latest rust version

.github/workflows/rust.yml

@@ -5,9 +5,6 @@ on:
     branches: [main, release/**]
   pull_request:
 
-env:
-  RUSTFLAGS: -Dwarnings -Dclippy::all -Dclippy::pedantic
-
 defaults:
   run:
     shell: bash
@@ -42,6 +39,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        rust: [msrv, latest]
         include:
         - os: ubuntu-latest
           target: x86_64-unknown-linux-gnu
@@ -57,7 +55,19 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - uses: stellar/actions/rust-cache@main
+    - name: Use the minimum supported Rust version
+      if: matrix.rust == 'msrv'
+      run: |
+        msrv="$(cargo metadata --format-version 1 --no-deps | jq -r '.packages | map(.rust_version) | map(values) | min')"
+        rustup override set $msrv
+        rustup component add clippy --toolchain $msrv
+    - name: Error on warnings and clippy checks
+      # Only error on warnings and checks for the msrv, because new versions of
+      # Rust will frequently add new warnings and checks.
+      if: matrix.rust == 'msrv'
+      run: echo RUSTFLAGS='-Dwarnings -Dclippy::all -Dclippy::pedantic' >> $GITHUB_ENV
     - run: rustup update
+    - run: cargo version
     - run: rustup target add ${{ matrix.target }}
     - run: rustup target add wasm32-unknown-unknown
     - if: matrix.target == 'aarch64-unknown-linux-gnu'
@@ -70,6 +80,7 @@ jobs:
         for I in cmd/soroban-cli cmd/crates/* cmd/crates/soroban-test/tests/fixtures/test-wasms/hello_world ; do
           cargo test --target ${{ matrix.target }} --manifest-path $I/Cargo.toml
         done
+
   publish-dry-run:
     if: github.event_name == 'push' || startsWith(github.head_ref, 'release/')
     strategy:

Cargo.toml

@@ -12,6 +12,7 @@ exclude = ["cmd/crates/soroban-test/tests/fixtures/hello"]
 
 [workspace.package]
 version = "20.1.1"
+rust-version = "1.70.0"
 
 [workspace.dependencies.soroban-env-host]
 version = "=20.0.2"

cmd/crates/soroban-spec-json/Cargo.toml

@@ -8,7 +8,7 @@ readme = "README.md"
 license = "Apache-2.0"
 version.workspace = true
 edition = "2021"
-rust-version = "1.70"
+rust-version.workspace = true
 
 [dependencies]
 soroban-spec = { workspace = true }

cmd/crates/soroban-spec-tools/Cargo.toml

@@ -8,7 +8,7 @@ license = "Apache-2.0"
 readme = "README.md"
 version.workspace = true
 edition = "2021"
-rust-version = "1.70"
+rust-version.workspace = true
 autobins = false
 
 

cmd/crates/soroban-spec-typescript/Cargo.toml

@@ -8,7 +8,7 @@ readme = "README.md"
 license = "Apache-2.0"
 version.workspace = true
 edition = "2021"
-rust-version = "1.70"
+rust-version.workspace = true
 
 [dependencies]
 soroban-spec = { workspace = true }

cmd/crates/soroban-test/Cargo.toml

@@ -8,7 +8,7 @@ license = "Apache-2.0"
 readme = "README.md"
 version = "20.1.1"
 edition = "2021"
-rust-version = "1.70"
+rust-version.workspace = true
 autobins = false
 
 

cmd/crates/soroban-test/tests/fixtures/test-wasms/custom_type/Cargo.toml

@@ -5,7 +5,7 @@ authors = ["Stellar Development Foundation <[email protected]>"]
 license = "Apache-2.0"
 edition = "2021"
 publish = false
-rust-version = "1.70"
+rust-version.workspace = true
 
 [lib]
 crate-type = ["cdylib", "rlib"]

cmd/crates/soroban-test/tests/fixtures/test-wasms/hello_world/Cargo.toml

@@ -5,7 +5,7 @@ authors = ["Stellar Development Foundation <[email protected]>"]
 license = "Apache-2.0"
 edition = "2021"
 publish = false
-rust-version = "1.70"
+rust-version.workspace = true
 
 [lib]
 crate-type = ["cdylib", "rlib"]

cmd/crates/soroban-test/tests/fixtures/test-wasms/swap/Cargo.toml

@@ -5,7 +5,7 @@ authors = ["Stellar Development Foundation <[email protected]>"]
 license = "Apache-2.0"
 edition = "2021"
 publish = false
-rust-version = "1.70"
+rust-version.workspace = true
 
 [lib]
 crate-type = ["cdylib"]

cmd/crates/soroban-test/tests/fixtures/test-wasms/token/Cargo.toml

@@ -6,7 +6,7 @@ authors = ["Stellar Development Foundation <[email protected]>"]
 license = "Apache-2.0"
 edition = "2021"
 publish = false
-rust-version = "1.70"
+rust-version.workspace = true
 
 [lib]
 crate-type = ["cdylib"]