BuildStarted.build_tool_version
Version of the build tool that is running.
BuildStarted.command
The name of the command that the user invoked.
BuildStarted.options_description
A human-readable description of all the non-default option settings
BuildStarted.server_pid
The process ID of the Bazel server.
BuildStarted.uuid
BuildStarted.working_directory
The working directory from which the build tool was invoked.
BuildStarted.workspace_directory
The directory of the workspace.