Sample
semver 1.0.28: Evaluate bare VersionReq caret defaulting, strict parser syntax, prerelease isolation, and build metadata total ordering in Cargo semver
Verified sample for cargo semver 1.0.28: Evaluate bare VersionReq caret defaulting, strict parser syntax, prerelease isolation, and build metadata total…
sha256:aad15f75653e5762a15d7950d5230b7fdc092df0414827a20d188bfeaaeef9e2
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
- Evaluate bare VersionReq caret defaulting, strict parser syntax, prerelease isolation, and build metadata total ordering in Cargo semver
- Packages
- Symbols
-
- semver::Version
- semver::Version::parse
- semver::Version::cmp_precedence
- semver::VersionReq
- semver::VersionReq::parse
- semver::VersionReq::matches
- semver::Op
- Environment
- rust
- Created
- 2026-08-16T08:18:26Z
Contract
- assert VersionReq::parse("1.2.3") defaults to Op::Caret matching 1.2.4 and 1.9.0 rather than Op::Exact
- assert Version::parse and VersionReq::parse strictly reject 'v' prefix, incomplete tuples, and leading zeroes
- assert VersionReq without prerelease tag rejects all prereleases while tagged comparator matches only identical tuples
- assert Version Eq and Ord differentiate build metadata for total ordering while cmp_precedence and VersionReq ignore build metadata
- assert 0.x caret ranges enforce breaking changes at minor for ^0.x and patch for ^0.0.x while ~0.0.x permits patch bumps
Files
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- src/lib.rs
- tests/contract.rs