Auto merge of #15714 - lnicola:rust-bors, r=lnicola

bors · bors · commit 03c56030350d · 2023-10-05T22:50:31.000Z
minor: Prepare for rust-bors This [only works](https://rust-lang.zulipchat.com/#narrow/stream/242791-t-infra/topic/testing.20new.20bors.20implementation/near/395026488) for try builds at the moment, unfortunately.
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
@@ -8,6 +8,7 @@ on:
     branches:
       - auto
       - try
+      - automation/bors/try
 
 env:
   CARGO_INCREMENTAL: 0
diff --git a/rust-bors.toml b/rust-bors.toml
@@ -0,0 +1 @@
+timeout = 3600
