Add workflow to check for minimal versions

.github/workflows/rust.yml

@@ -17,6 +17,23 @@ jobs:
     - uses: dtolnay/rust-toolchain@1.52.0
     - run: cargo check
 
+  minimal-versions:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Install tools
+      run: cargo install cargo-hack cargo-minimal-versions
+    - name: Install nightly rust
+      uses: dtolnay/rust-toolchain@nightly
+    - name: Check with minimal versions
+      run: cargo minimal-versions check
+    - name: Check with minimal versions (serialize)
+      run: cargo minimal-versions check --features serialize
+    - name: Check with minimal versions (encoding)
+      run: cargo minimal-versions check --features encoding
+    - name: Check with minimal versions (async-tokio)
+      run: cargo minimal-versions check --features async-tokio
+
   test:
     strategy:
       matrix:

Cargo.toml

@@ -17,14 +17,16 @@ include = ["src/*", "LICENSE-MIT.md", "README.md"]
 document-features = { version = "0.2", optional = true }
 encoding_rs = { version = "0.8", optional = true }
 serde = { version = "1.0.100", optional = true }
-tokio = { version = "1.0", optional = true, default-features = false, features = ["io-util"] }
+tokio = { version = "1.10", optional = true, default-features = false, features = ["io-util"] }
 memchr = "2.1"
 
 [dev-dependencies]
 criterion = "0.4"
 pretty_assertions = "1.3"
 regex = "1"
-serde = { version = "1.0", features = ["derive"] }
+# #[serde(other)] allowed not only inside field_identifier since 1.0.79
+# serde does not follow semver in numbering and their dependencies, so we specifying patch here
+serde_derive = { version = "1.0.79" }
 serde-value = "0.7"
 tokio = { version = "1.21", default-features = false, features = ["macros", "rt"] }
 tokio-test = "0.4"

Changelog.md

@@ -35,6 +35,7 @@
   The same behavior for the `Reader` does not implemented (yet?) and should be
   implemented manually
 - [#562]: Correctly set minimum required version of memchr dependency to 2.1
+- [#565]: Correctly set minimum required version of tokio dependency to 1.10
 - [#565]: Fix compilation error when build with serde <1.0.139
 
 ### Misc Changes