Container element for the environment used by the build, submake, or job. Note that only the environment for the build itself is provided in full. For submakes and jobs, the contents of the environment tag describe deltas relative to the parent of that submake or job. The complete environment for a given entity may be constructed by starting with the build environment and applying the deltas for each child, in order, until the desired entity is reached.
The environment tag is always included for the build, regardless of annotation detail level, but it is only included for make and job tags if the annotation detail level includes env.