chore: check documentation lint (#454)

.github/workflows/ci.yml

@@ -53,6 +53,8 @@ jobs:
         uses: taiki-e/install-action@cargo-make
       - name: Check formatting
         run: cargo make fmt
+      - name: Check documentation
+        run: cargo make check-doc
 
   clippy:
     runs-on: ubuntu-latest

Makefile.toml

@@ -21,7 +21,7 @@ dependencies = [
 
 [tasks.style-check]
 description = "Check code style"
-dependencies = ["fmt", "typos"]
+dependencies = ["fmt", "typos", "check-doc"]
 
 [tasks.fmt]
 description = "Format source code"
@@ -34,6 +34,19 @@ description = "Run typo checks"
 install_crate = { crate_name = "typos-cli", binary = "typos", test_arg = "--version" }
 command = "typos"
 
+[tasks.check-doc]
+description = "Check documentation for errors and warnings"
+toolchain = "nightly"
+command = "cargo"
+args = [
+  "rustdoc",
+  "--all-features",
+  "--",
+  "-Zunstable-options",
+  "--check",
+  "-Dwarnings"
+]
+
 [tasks.check]
 description = "Check code for errors and warnings"
 command = "cargo"