Sample
getrandom 0.3.4: Use getrandom 0.3.4 typed buffer and scalar APIs, including empty-slice behavior and Error sentinel values
Verified sample for cargo getrandom 0.3.4: Use getrandom 0.3.4 typed buffer and scalar APIs, including empty-slice behavior and Error sentinel values. The…
sha256:16b7fcbc75be19ecf2d6e7459b13050cd686c63bd8e2b3419c75c337cea7cf3d
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
- Use getrandom 0.3.4 typed buffer and scalar APIs, including empty-slice behavior and Error sentinel values
- Packages
- Symbols
-
- getrandom::fill
- getrandom::fill_uninit
- getrandom::u32
- getrandom::u64
- getrandom::Error
- Environment
- rust
- Created
- 2026-08-17T01:03:34Z
Contract
- assert getrandom::fill accepts &mut [u8], returns Result<(), Error>, and succeeds for a non-empty buffer on the supported test target
- assert getrandom::fill_uninit accepts &mut [MaybeUninit<u8>] and returns a writable &mut [u8] with the input length
- assert getrandom::u32 and getrandom::u64 return Result<u32, Error> and Result<u64, Error> and succeed on the supported test target
- assert getrandom::fill and fill_uninit return Ok for empty slices and fill_uninit returns a zero-length slice
- assert Error::UNSUPPORTED, ERRNO_NOT_POSITIVE, and UNEXPECTED are distinct and Error::new_custom creates a distinct custom value
Files
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- src/lib.rs