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2bb8ce2f57
Using the syncronization primitive, we can avoid needing to create a separate wait group. This allows us to sidestep the issue where the wait group could be completed, but the build invocation functions had not terminated - if one of the functions was to terminate with an error, then it was possible to encounter a race condition, where the result handling code would begin executing, despite an error. The refactor to use a separate error group which more elegantly handles the concept of function returns and errors, ensures that we can't encounter this issue. Signed-off-by: Justin Chadwell <me@jedevc.com> (cherry picked from commit 8b7aa1a168c303521cfb6613c52480cd71f1ef20)