Sample
windows-sys 0.61.2: windows_sys::Win32::Foundation::E_FAIL
Verified sample for cargo windows-sys 0.61.2: windows_sys::Win32::Foundation::E_FAIL. The contract ran on rust 1 · linux alpine/x64 · docker and passed.
sha256:0cc1bcb6022f95863334adc3d8e030a020db06ee63d6e9cab884606436011ee8
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 1
- Signing keys that built it
- 1
Declared environment
linux · alpine · musl x64 cargo
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| rust 1 · linux alpine/x64 · docker ed25519:c1973797be207ac4 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1rust:1-alpine@sha256:a10e64dd139b… |
2026-09-19 |
Case
HOW- Goal
- verify windows_sys::Win32::Foundation::E_FAIL in pkg:cargo/windows-sys@0.61.2
- Packages
- Symbols
-
- windows_sys::Win32::Foundation::E_FAIL
- Created
- 2026-09-17T16:52:31Z
Contract
- E_FAIL is defined as an HRESULT constant in windows_sys::Win32::Foundation
- E_FAIL has the standard COM error code value 0x80004005 (-2147467259 as i32)
- E_FAIL has the high bit set indicating COM error severity
- E_FAIL indicates failure because the error bit is set (negative signed value)
Files
- Cargo.lock
- Cargo.toml
- PROMPT.md
- csx.json
- spec.json
- src/lib.rs
- test/contract.rs
Source
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
[[package]]
name = "sample-windows-sys"
version = "1.0.0"
dependencies = [
"windows-sys",
]
[[package]]
name = "windows-link"
version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
[[package]]
name = "windows-sys"
version = "0.61.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
dependencies = [
"windows-link",
]
[package]
name = "sample-windows-sys"
version = "1.0.0"
edition = "2021"
publish = false
[dependencies]
windows-sys = { version = "=0.61.2", features = ["Win32_Foundation"] }
[[bin]]
name = "contract"
path = "test/contract.rs"
Clean-room public code sample — generation instructions
Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.
A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.
Goal: verify windows_sys::Win32::Foundation::E_FAIL in pkg:cargo/windows-sys@0.61.2
Kind: HOW
Use EXACTLY these public packages and versions:
- pkg:cargo/windows-sys@0.61.2
Demonstrate these symbols/APIs:
- windows_sys::Win32::Foundation::E_FAIL
Rules:
- One focused purpose; the smallest project that proves the goal.
- Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
- Pin every dependency with a lockfile so resolution is reproducible.
- No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
- No personal names, emails, company names, or project identifiers of any kind.
- No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
- Keep it under 200 files and 256KB packed.
{"case":{"caseId":"case:sha256:601605e8ed282b697cbd6f90ddaf461280fb04f88f225c56338d2c4a60ec33c7","contract":["E_FAIL is defined as an HRESULT constant in windows_sys::Win32::Foundation","E_FAIL has the standard COM error code value 0x80004005 (-2147467259 as i32)","E_FAIL has the high bit set indicating COM error severity","E_FAIL indicates failure because the error bit is set (negative signed value)"],"goal":"verify windows_sys::Win32::Foundation::E_FAIL in pkg:cargo/windows-sys@0.61.2","kind":"HOW","packages":["pkg:cargo/windows-sys@0.61.2"],"schemaVersion":1,"symbols":["windows_sys::Win32::Foundation::E_FAIL"]},"contractCommand":["cargo","run","--offline"],"environment":{"arch":"x64","distro":"alpine","ecosystem":"cargo","libc":"musl","os":"linux","packageManager":"cargo","schemaVersion":1},"license":"MIT-0","packages":["pkg:cargo/windows-sys@0.61.2"],"schemaVersion":1,"subject":"pkg:cargo/windows-sys@0.61.2","symbols":["windows_sys::Win32::Foundation::E_FAIL"],"verifierAdapter":"cargo@1"}
{
"schemaVersion": 1,
"goal": "verify windows_sys::Win32::Foundation::E_FAIL in pkg:cargo/windows-sys@0.61.2",
"kind": "HOW",
"packages": [
"pkg:cargo/windows-sys@0.61.2"
],
"symbols": [
"windows_sys::Win32::Foundation::E_FAIL"
]
}
//! Clean-room verification sample for windows-sys.
pub use windows_sys::*;
use windows_sys::core::HRESULT;
use windows_sys::Win32::Foundation::E_FAIL;
fn main() {
// 1. E_FAIL is defined as an HRESULT constant in windows_sys::Win32::Foundation
let fail_code: HRESULT = E_FAIL;
// 2. E_FAIL has the standard COM error code value 0x80004005 (-2147467259 as i32)
assert_eq!(fail_code, 0x80004005_u32 as i32);
assert_eq!(fail_code, -2147467259);
// 3. E_FAIL has the high bit set indicating COM error severity
assert_eq!((fail_code as u32) & 0x80000000, 0x80000000);
// 4. E_FAIL indicates failure because the error bit is set (negative signed value)
assert!(fail_code < 0);
println!("All windows_sys::Win32::Foundation::E_FAIL contract assertions passed.");
}
Origin Seeder
anonymous