message: meta: Re-enable cargo checks
  Brings back `cargo check` as discussed here:
  now that has landed.
diff: stages:
  -# Blocked on https://github.com/crate-ci/azure-pipelines/pull/42
  -# See also https://github.com/tokio-rs/tracing/pull/191#issuecomment-513872071
  -# When we bring these back, add check as a dependency for the other stages
  -# - stage: check
  -# displayName: Compilation check
  -# dependsOn: []
  -# jobs:
  -# - template: azure/cargo-check.yml@templates
  -# parameters:
  -# name: cargo_check
  -# benches: true
  -# # This represents the minimum Rust version supported.
  -# # Tests are not run as tests may require newer versions of rust.
  -# - stage: msrv
  -# displayName: "Minimum supported Rust version"
  -# dependsOn: []
  -# jobs:
  -# - template: azure/cargo-check.yml@templates
  -# parameters:
  -# rust: 1.34.0
  + - stage: check
  + displayName: Compilation check
  + dependsOn: []
  + jobs:
  + - template: azure/cargo-check.yml@templates
  + parameters:
  + name: cargo_check
  + benches: true
  + all_features: false
  + # This represents the minimum Rust version supported.
  + # Tests are not run as tests may require newer versions of rust.
  + - stage: msrv
  + displayName: "Minimum supported Rust version"
  + dependsOn: check
  + jobs:
  + - template: azure/cargo-check.yml@templates
  + parameters:
  + rust: 1.34.0
  + all_features: false
  - stage: custom
  displayName: "Special tests"
  - # dependsOn: check
  - dependsOn: []
  + dependsOn: check
  jobs:
  - job: custom_stable
  pool:
  @@ -51,8 +49,7 @@ stages:
  displayName: "Test std::future support for tracing-futures"
  - stage: style
  displayName: Style linting
  - # dependsOn: check
  - dependsOn: []
  + dependsOn: check
  jobs:
  - template: azure/rustfmt.yml@templates
  parameters:
  @@ -69,8 +66,7 @@ stages:
  allow_fail: true
  - stage: test
  displayName: Test suite
  - # dependsOn: check
  - dependsOn: []
  + dependsOn: check
  jobs:
  - template: azure/tests.yml@templates
  - stage: coverage
  