Sample
reqwest 0.12.28: Build reqwest with default-features=false and rustls-tls to ensure Rustls backend linking and validate builder TLS version constraints without native OpenSSL linkage
Verified sample for cargo reqwest 0.12.28: Build reqwest with default-features=false and rustls-tls to ensure Rustls backend linking and validate builder TLS…
sha256:4c7f1fbb8fafa224db7d8c9fa713687c71c9e99641b2a1102025da90a01ac252
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
- 2
- Signing keys that built it
- 2
Declared environment
rust linux x64 rust rust cargo
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| 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 |
Case
HOW- Goal
- Build reqwest with default-features=false and rustls-tls to ensure Rustls backend linking and validate builder TLS version constraints without native OpenSSL linkage
- Packages
- Symbols
-
- reqwest::Client
- reqwest::ClientBuilder
- reqwest::tls::Version
- reqwest::Error
- Environment
- rust
- Created
- 2026-08-16T09:24:03Z
Contract
- assert ClientBuilder::new().use_rustls_tls().min_tls_version(Version::TLS_1_2).max_tls_version(Version::TLS_1_3).danger_accept_invalid_certs(true).build().is_ok()
- assert Client::new() succeeds and defaults to rustls backend when only rustls-tls feature is enabled
- assert ClientBuilder::new().use_rustls_tls().min_tls_version(Version::TLS_1_3).max_tls_version(Version::TLS_1_2).build() fails synchronously at build time with is_builder() == true
- assert request builder constructed from rustls client accepts https scheme URLs
Files
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- src/lib.rs