refactor(deps): migrate from discontinued async-std to smol#84
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async-std was officially discontinued on 2025-03-01 and upstream points all users at smol, the executor it was already built on. Two smol behaviours that async-std papered over and that the diff depends on: 1. A smol Task cancels when its handle drops, so the statsd listener and the timeout task are `.detach()`ed to stay fire-and-forget. 2. async-process drives its reaper thread from Child creation, so child `.status()` is awaited under a plain `block_on` with no executor wired up. Net ~19 fewer transitive crates in the dependency tree. Refs: https://github.com/async-rs/async-std
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Summary
async-stdwas officially discontinued on 2025-03-01; upstream points all users atsmol, the executor async-std was already built on. This swaps the runtime tosmolwith no behaviour change.Two
smolsemantics differ fromasync-stdand shape the diff:smolTaskcancels when its handle drops, so the statsd listener and the timeout task are.detach()ed to stay fire-and-forget.async-processdrives its reaper thread fromChildcreation, sochild.status()is awaited under a plainblock_onwith no executor wired up.Net ~19 fewer transitive crates in the dependency tree.
Note
Stacked on #79 — base is
BridgeAR/2026-06-03-dep-updates; merge after #79 lands.Test plan
cargo teston macOS and Ubuntu — 24 example tests, includingservice/assigned_port/timeout/ready_signal_*/summarize, which exercise the spawned listener, timer task, pipe read, and stdin path under the new runtimecargo clippy --all-targetsRefs: https://github.com/async-rs/async-std