示例
tower 0.5.3: Layer declaration order in Tower ServiceBuilder is outer-to-inner, requiring LoadShed to precede ConcurrencyLimit to fail fast with Overloaded instead of hanging indefinitely in poll_ready
已验证示例 — cargo tower 0.5.3: Layer declaration order in Tower ServiceBuilder is outer-to-inner, requiring LoadShed to precede ConcurrencyLimit to fail fast…
sha256:9b72838479c9a3e8a637a5b2c3ca91325f7991fe3f7b175244bff89210027aa5
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 2
声明的环境
rust linux x64 rust rust cargo
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| rust 1 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-16 |
| rust 1 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-18 |
案例
HOW- 目标
- Layer declaration order in Tower ServiceBuilder is outer-to-inner, requiring LoadShed to precede ConcurrencyLimit to fail fast with Overloaded instead of hanging indefinitely in poll_ready
- 符号
-
- tower::builder::ServiceBuilder
- tower::load_shed::LoadShed
- tower::limit::concurrency::ConcurrencyLimit
- tower::timeout::Timeout
- tower::buffer::Buffer
- 环境
- rust
- 创建时间
- 2026-08-16T08:25:54Z
契约
- ServiceBuilder applies layers from top to bottom such that first declared layer wraps outer
- Declaring load_shed before concurrency_limit intercepts Poll::Pending and returns Overloaded error upon call
- Declaring concurrency_limit before load_shed blocks in poll_ready indefinitely when saturated without shedding load
- Timeout directly wrapping ConcurrencyLimit does not time out poll_ready wait time without Buffer
文件
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- tests/contract.rs