Sample
chrono 0.4.45: Build and add to dates with chrono 0.4 without the deprecated constructors, and know when month arithmetic clamps
Verified sample for cargo chrono 0.4.45: Build and add to dates with chrono 0.4 without the deprecated constructors, and know when month arithmetic clamps.…
sha256:bb53a07e8a52f98a3d5f6b3a0c79b1070e860b17949e852a6e2f2c015657ec3f
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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
- 1
- Signing keys that built it
- 1
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 |
2026-08-14 |
Case
HOW- Goal
- Build and add to dates with chrono 0.4 without the deprecated constructors, and know when month arithmetic clamps
- Packages
- Symbols
-
- DateTime::from_timestamp
- NaiveDate::from_ymd_opt
- NaiveDateTime::and_utc
- NaiveDate::checked_add_months
- Environment
- rust 1
- Created
- 2026-08-14T19:26:30Z
Contract
- assert DateTime::from_timestamp returns None out of range instead of panicking
- assert an impossible civil date is None and parsing refuses it
- assert and_utc converts a naive value to DateTime<Utc>
- assert month arithmetic clamps to the end of the month while day arithmetic does not
- assert adding one month twice differs from adding two months
Files
- Cargo.lock
- Cargo.toml
- csx.json
- src/main.rs