diff --git a/ci/azure-install-rust.yml b/ci/azure-install-rust.yml
index 654db4738..43d806e7f 100644
--- a/ci/azure-install-rust.yml
+++ b/ci/azure-install-rust.yml
@@ -2,7 +2,10 @@ steps:
   # Linux and macOS.
   - script: |
       set -e
-      curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain $RUSTUP_TOOLCHAIN
+      curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain none
+      export PATH=$PATH:$HOME/.cargo/bin
+      rustup toolchain install $RUSTUP_TOOLCHAIN
+      rustup default $RUSTUP_TOOLCHAIN
       echo "##vso[task.setvariable variable=PATH;]$PATH:$HOME/.cargo/bin"
     env:
       RUSTUP_TOOLCHAIN: ${{parameters.rust_version}}
@@ -12,8 +15,10 @@ steps:
   # Windows.
   - script: |
       curl -sSf -o rustup-init.exe https://win.rustup.rs
-      rustup-init.exe -y --default-toolchain %RUSTUP_TOOLCHAIN%
+      rustup-init.exe -y --default-toolchain none
       set PATH=%PATH%;%USERPROFILE%\.cargo\bin
+      rustup toolchain install %RUSTUP_TOOLCHAIN%
+      rustup default %RUSTUP_TOOLCHAIN%
       echo "##vso[task.setvariable variable=PATH;]%PATH%;%USERPROFILE%\.cargo\bin"
     env:
       RUSTUP_TOOLCHAIN: ${{parameters.rust_version}}
diff --git a/ci/azure-test-nightly.yml b/ci/azure-test-nightly.yml
index d739a1a96..bbb444426 100644
--- a/ci/azure-test-nightly.yml
+++ b/ci/azure-test-nightly.yml
@@ -12,7 +12,7 @@ jobs:
   - template: azure-patch-crates.yml
 
   - script: cargo check --all
-    displayName: cargo +nightly check --all
+    displayName: cargo check --all
 
   # Check benches
   - script: cargo check --benches --all
diff --git a/tokio-sync/CHANGELOG.md b/tokio-sync/CHANGELOG.md
index 0eaa7ed22..60b500a24 100644
--- a/tokio-sync/CHANGELOG.md
+++ b/tokio-sync/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 0.1.6 (June 4, 2019)
+
+### Added
+- Add Sync impl for Lock (#1117).
+
 # 0.1.5 (April 22, 2019)
 
 ### Added
diff --git a/tokio-sync/README.md b/tokio-sync/README.md
index 74dfa4f56..a35d5bc8e 100644
--- a/tokio-sync/README.md
+++ b/tokio-sync/README.md
@@ -2,7 +2,7 @@
 
 Synchronization utilities
 
-[Documentation](https://docs.rs/tokio-sync/0.1.5/tokio_sync/)
+[Documentation](https://docs.rs/tokio-sync/0.1.6/tokio_sync/)
 
 ## Overview
 
diff --git a/tokio/CHANGELOG.md b/tokio/CHANGELOG.md
index afb0f934a..509d23eae 100644
--- a/tokio/CHANGELOG.md
+++ b/tokio/CHANGELOG.md
@@ -1,6 +1,11 @@
 This changelog only applies to the `tokio` crate proper. Each sub crate
 maintains its own changelog tracking changes made in each respective sub crate.
 
+# 0.1.21 (May 30, 2019)
+
+### Changed
+- Bump `tokio-trace-core` version to 0.2 (#1111).
+
 # 0.1.20 (May 14, 2019)
 
 ### Added
diff --git a/tokio/Cargo.toml b/tokio/Cargo.toml
index 7fb6d4be4..e8757947b 100644
--- a/tokio/Cargo.toml
+++ b/tokio/Cargo.toml
@@ -13,7 +13,7 @@ edition = "2018"
 authors = ["Carl Lerche <me@carllerche.com>"]
 license = "MIT"
 readme = "README.md"
-documentation = "https://docs.rs/tokio/0.1.20/tokio/"
+documentation = "https://docs.rs/tokio/0.1.21/tokio/"
 repository = "https://github.com/tokio-rs/tokio"
 homepage = "https://tokio.rs"
 description = """
@@ -76,7 +76,7 @@ tokio-threadpool = { version = "0.2.0", optional = true, path = "../tokio-thread
 tokio-tcp = { version = "0.2.0", optional = true, path = "../tokio-tcp" }
 tokio-udp = { version = "0.2.0", optional = true, path = "../tokio-udp" }
 tokio-timer = { version = "0.3.0", optional = true, path = "../tokio-timer" }
-tokio-trace-core = { version = "0.1", optional = true }
+tokio-trace-core = { version = "0.2", optional = true }
 
 # Needed until `reactor` is removed from `tokio`.
 mio = { version = "0.6.14", optional = true }
diff --git a/tokio/README.md b/tokio/README.md
index 6ff9f091d..76b53e8f8 100644
--- a/tokio/README.md
+++ b/tokio/README.md
@@ -28,7 +28,7 @@ the Rust programming language. It is:
 
 [Website](https://tokio.rs) |
 [Guides](https://tokio.rs/docs/getting-started/hello-world/) |
-[API Docs](https://docs.rs/tokio/0.1.19/tokio) |
+[API Docs](https://docs.rs/tokio/0.1.21/tokio) |
 [Chat](https://gitter.im/tokio-rs/tokio)
 
 ## Overview
@@ -45,9 +45,9 @@ level, it provides a few major components:
 These components provide the runtime components necessary for building
 an asynchronous application.
 
-[net]: https://docs.rs/tokio/0.1.19/tokio/net/index.html
-[reactor]: https://docs.rs/tokio/0.1.19/tokio/reactor/index.html
-[scheduler]: https://docs.rs/tokio/0.1.19/tokio/runtime/index.html
+[net]: https://docs.rs/tokio/0.1.21/tokio/net/index.html
+[reactor]: https://docs.rs/tokio/0.1.21/tokio/reactor/index.html
+[scheduler]: https://docs.rs/tokio/0.1.21/tokio/runtime/index.html
 
 ## Example