Fix build failures not being presented on build consoles.

Change-Id: Ia036c14a1e7225154e23cd24d3e900e901319823
Bug: https://github.com/flutter/flutter/issues/56616
Reviewed-on: https://flutter-review.googlesource.com/c/recipes/+/2681
Reviewed-by: Christopher Fujino <fujino@google.com>
Reviewed-by: Kaushik Iska <kaushikiska@google.com>
Commit-Queue: Godofredo Contreras <godofredoc@google.com>