Sample
semver 1.0.28: Evaluate Cargo semver bare requirement caret defaulting, prerelease tuple isolation, zero-version breaking bounds, and build metadata equality
Verified sample for cargo semver 1.0.28: Evaluate Cargo semver bare requirement caret defaulting, prerelease tuple isolation, zero-version breaking bounds…
sha256:b979dab7a5d51fa64903ed732962f3498ca88091a70e52792d77687af65070fd
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 |
2026-08-17 |
| 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 Cargo semver bare requirement caret defaulting, prerelease tuple isolation, zero-version breaking bounds, and build metadata equality
- Packages
- Symbols
-
- semver::VersionReq
- semver::Version
- semver::Comparator
- semver::Op
- Environment
- rust
- Created
- 2026-08-17T02:34:02Z
Contract
- assert bare requirement 1.2.3 defaults to caret ^1.2.3 accepting 1.2.4 and 1.3.0 while rejecting 2.0.0
- assert ^0.2.3 rejects 0.3.0 and ^0.0.3 rejects 0.0.4 because zero-major releases treat minor/patch as breaking
- assert ~0.0.3 accepts 0.0.4 making tilde looser than caret for zero-major zero-minor ranges
- assert wildcard * matches all stable versions but rejects prereleases like 1.0.0-alpha.1
- assert >=1.2.3-alpha.1 accepts 1.2.3-alpha.2 and 1.2.4 but rejects 1.2.4-alpha.1 due to Cargo tuple isolation
- assert Rust Version struct Eq and Ord differentiate build metadata whereas VersionReq matches ignores it
- assert leading zeros are forbidden in numeric prerelease identifiers but allowed in build metadata
Files
- .gitignore
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- src/lib.rs