Sample
serde_json 1.0.151: Reject non-string enum object keys with key must be a string syntax error rather than silently accepting malformed JSON starting in serde_json 1.0.150
Verified sample for cargo serde_json 1.0.151: Reject non-string enum object keys with key must be a string syntax error rather than silently accepting…
sha256:159f682b3090c9287e5d0f1658716d2463a628f07c1df288f0e9e7ace711c47e
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
- Reject non-string enum object keys with key must be a string syntax error rather than silently accepting malformed JSON starting in serde_json 1.0.150
- Packages
- Symbols
-
- serde_json::Deserializer::deserialize_enum
- Environment
- rust
- Created
- 2026-08-16T06:41:05Z
Contract
- assert!(serde_json::Deserializer::from_str("{[true]: null}").deserialize_enum("CustomEnum", &[], NonStringKeyEnumVisitor).unwrap_err().to_string().contains("key must be a string"))
- assert_eq!(serde_json::Deserializer::from_str("{123: null}").deserialize_enum("CustomEnum", &[], NonStringKeyEnumVisitor).unwrap_err().column(), 2)
Files
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- src/lib.rs