ci: generate docs (tokio-rs#1810)

Check docs as part of CI. This should catch link errors.

azure-pipelines.yml

@@ -5,18 +5,6 @@ variables:
   RUSTFLAGS: -Dwarnings
 
 jobs:
-# Check formatting
-- template: ci/azure-rustfmt.yml
-  parameters:
-    rust: stable
-    name: rustfmt
-
-# Apply clippy lints to all crates
-- template: ci/azure-clippy.yml
-  parameters:
-    rust: stable
-    name: clippy
-
 # Test top level crate
 - template: ci/azure-test-stable.yml
   parameters:
@@ -28,7 +16,7 @@ jobs:
       - tokio
       - tests-integration
 
-# Test crates that are NOT platform specific
+# Test sub crates
 - template: ci/azure-test-stable.yml
   parameters:
     name: test_linux
@@ -67,6 +55,24 @@ jobs:
     name: minrust
     rust_version: 1.39.0
 
+# Check formatting
+- template: ci/azure-rustfmt.yml
+  parameters:
+    rust: stable
+    name: rustfmt
+
+# Apply clippy lints to all crates
+- template: ci/azure-clippy.yml
+  parameters:
+    rust: stable
+    name: clippy
+
+# Check doc generation
+- template: ci/azure-check-docs.yml
+  parameters:
+    rust: nightly-2019-11-16
+    name: docs
+
 # - template: ci/azure-tsan.yml
 #   parameters:
 #     name: tsan
@@ -80,9 +86,7 @@ jobs:
       - clippy
       - test_tokio
       - test_linux
-      # - test_features
       - loom
-#      - test_nightly
       - cross
-#      - minrust
+      - minrust
 #      - tsan

ci/azure-check-docs.yml

@@ -0,0 +1,15 @@
+jobs:
+# Check docs
+- job: ${{ parameters.name }}
+  displayName: Check docs
+  pool:
+    vmImage: ubuntu-16.04
+  steps:
+    - template: azure-install-rust.yml
+      parameters:
+        rust_version: ${{ parameters.rust }}
+
+    - script: |
+        RUSTDOCFLAGS="--cfg docsrs" cargo doc --lib --no-deps --all-features
+      displayName: Check docs
+

ci/azure-test-stable.yml

@@ -17,7 +17,6 @@ jobs:
   steps:
   - template: azure-install-rust.yml
     parameters:
-      # rust_version: stable
       rust_version: ${{ parameters.rust }}
 
   - script: cargo install cargo-hack

tokio-test/src/io.rs

@@ -15,8 +15,8 @@
 //! Attempting to write data that the mock isn't expected will result in a
 //! panic.
 //!
-//! [`AsyncRead`]: tokio_io::AsyncRead
-//! [`AsyncWrite`]: tokio_io::AsyncWrite
+//! [`AsyncRead`]: tokio::io::AsyncRead
+//! [`AsyncWrite`]: tokio::io::AsyncWrite
 
 use tokio::io::{AsyncRead, AsyncWrite};
 use tokio::sync::mpsc;