Here lives an experimental bot that does this: PostgreSQL Commitfest → Github → ( AppVeyor, Cirrus CI ). The results appear in the following order: apply, Windows/amd64 check, FreeBSD/amd64 check-world, Linux/aarch64 check-world + docs, macOS/amd64 check. The plan is eventually to show them on the Commitfest app.
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Please send feedback to thomas.munro-at-gmail.com.