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fix: box push() future to prevent stack overflow in nested async chains

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The push() function generates a ~13KB async state machine that gets inlined
into every caller's future. In deeply nested async chains (e.g. flow execution),
this causes stack overflows. Boxing the future at the definition site via a thin
wrapper reduces each caller's stack footprint to a single pointer.

This also reverts the RUST_MIN_STACK workaround from CI.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Ruben Fiszel
2026-02-08 15:51:44 +00:00
parent 4cce13f522
commit 67c8aef9fa
2 changed files with 194 additions and 80 deletions
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1
.github/workflows/backend-test.yml vendored
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@@ -214,7 +214,6 @@ jobs:
RUST_LOG_STYLE: never
CARGO_NET_GIT_FETCH_WITH_CLI: true
CARGO_BUILD_JOBS: 4
RUST_MIN_STACK: 8388608
WMDEBUG_FORCE_V0_WORKSPACE_DEPENDENCIES: 1
WMDEBUG_FORCE_RUNNABLE_SETTINGS_V0: 1
WMDEBUG_FORCE_NO_LEGACY_DEBOUNCING_COMPAT: 1