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fix: raise RUST_MIN_STACK repo-wide to fix e2e test stack overflows #3455

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fix: raise RUST_MIN_STACK repo-wide to fix e2e test stack overflows #3455

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13 changes: 13 additions & 0 deletions .cargo/config.toml
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Original file line number Diff line number Diff line change
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# Raise the per-thread minimum stack size for all cargo-launched processes
# (test binaries, build scripts, `cargo run`).
#
# Rationale: e2e tests in `walrus-e2e-tests` build deep async call chains through the
# Sui SDK (`Wallet::execute_transaction_may_fail` and friends are ~10 KB stack frames each).
# Composed in test setup these exceed the default thread stack and abort with
# `fatal runtime error: stack overflow`. The libtest harness runs each test on its own
# spawned thread, which honors RUST_MIN_STACK at creation time; cargo-nextest propagates
# this `[env]` table into the test process. 32 MiB is verified sufficient.
#
# Non-`force`: a developer who already exports RUST_MIN_STACK keeps their own value.
[env]
RUST_MIN_STACK = "33554432"
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