code: func NewBuildError(name string, err error) error {
  	return Error{
  		Message:    fmt.Sprintf("building %s failed", name),
  		Details:    err,
  		ErrorCode:  BuildError,
  		Suggestion: "check the build output for errors",
  	}
  }
docs: // NewBuildError returns a new error which indicates there was a problem
  // building the image