chore: checkpoint before Python removal

vendor/iri-string/.woodpecker/check-doc-docs-rs.yml

@@ -0,0 +1,27 @@
+---
+# Checks if doc comments will have no errors on `docs.rs`.
+
+when:
+  - event: [manual, push, tag]
+
+variables:
+  rust_nightly_image: &rust_nightly_image 'rustlang/rust:nightly-slim'
+
+clone:
+  git:
+    image: woodpeckerci/plugin-git
+    settings:
+      # Custom root CA certificate will be used in some local networks.
+      # The global environment variable WP_GIT_SKIP_VERIFY will be
+      # set to `true` in such environment.
+      skip-verify: ${WP_GIT_SKIP_VERIFY:-false}
+      lfs: false
+
+steps:
+  - name: doc (docs.rs)
+    image: *rust_nightly_image
+    commands:
+      - export RUSTDOCFLAGS="-D warnings"
+      # Workaround to avoid build failure caused by too-old dependencies.
+      - cargo update
+      - cargo rustdoc --all-features -- --cfg docsrs