Set rust-version to 1.70.0. (fix #42)

.github/workflows/ci.yml

@@ -37,3 +37,6 @@ jobs:
         run: cargo +stable test --verbose --no-run
       - name: Run tests (minimal versions)
         run: cargo +stable test --verbose
+      - uses: taiki-e/install-action@cargo-hack
+      - name: Check msrv
+        run: cargo hack check --rust-version --workspace --all-targets --ignore-private

parse-display-derive/Cargo.toml

@@ -10,6 +10,7 @@ keywords = ["derive", "enum", "from_str", "display", "regex"]
 categories = ["parsing"]
 description = "Procedural macro to implement Display and FromStr using common settings."
 edition = "2021"
+rust-version = "1.70.0"
 
 [lib]
 proc-macro = true

parse-display-with/Cargo.toml

@@ -10,6 +10,7 @@ documentation = "https://docs.rs/parse-display-with/"
 keywords = ["parse-display"]
 categories = ["parsing"]
 description = "Custom formatting/parsing utilities for parse-display."
+rust-version = "1.70.0"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

parse-display/Cargo.toml

@@ -11,6 +11,7 @@ keywords = ["derive", "enum", "from_str", "display", "regex"]
 categories = ["parsing"]
 description = "Procedural macro to implement Display and FromStr using common settings."
 include = ["/src/**"]
+rust-version = "1.70.0"
 
 [features]
 default = ["std"]