message: ci: pass --locked to the build and test commands
  This will prevent Cargo.toml changes from landing without the Cargo.lock
  being up to date.
diff: @@ -28,7 +28,7 @@ jobs:
  echo "::set-env name=CRATESFYI_DATABASE_URL::postgresql://$(whoami)@%2Fvar%2Frun%2Fpostgresql/$(whoami)"
  - name: Build docs.rs
  - run: cargo build
  + run: cargo build --locked
  - name: Prepare the test environment
  run: |
  @@ -37,7 +37,7 @@ jobs:
  echo "::set-env name=CRATESFYI_PREFIX::${prefix}"
  - name: Test docs.rs
  - run: cargo test -- --test-threads=1
  + run: cargo test --locked -- --test-threads=1
  docker:
  name: Docker
  