Sample
semver 1.0.28: Check a version against a caret requirement with the semver crate in Rust
Verified sample for cargo semver 1.0.28: Check a version against a caret requirement with the semver crate in Rust. The contract ran on rust 1 · linux…
sha256:c191ec9b36048a433bed234d5c9bf24b677fdf4fc021f0c226ccf6e0e850be06
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 1 linux x64 rust 1 rust cargo
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| rust 1 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-13 |
| rust 1 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-17 |
Case
HOW- Goal
- Check a version against a caret requirement with the semver crate in Rust
- Packages
- Symbols
-
- Version::parse
- VersionReq::matches
- Environment
- rust 1
- Created
- 2026-08-13T15:47:40Z
Contract
- parse a version and a requirement
- assert a version inside the caret range matches
- assert the next major does not
- assert a prerelease is excluded from a plain requirement
Files
- Cargo.lock
- Cargo.toml
- csx.json
- src/main.rs