Sample
Calling try_recv on a closed Tokio MPSC receiver with in-flight sender permits returns Empty instead of premature Disconnected
sha256:1ff6e5d349fd30f10ae07ff7eecbcd551ea33279ba3e1ed6b5e2a0c68f4b72d6
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Case
- Goal
- Calling try_recv on a closed Tokio MPSC receiver with in-flight sender permits returns Empty instead of premature Disconnected HOW
- Packages
- tokio 1.53.1
- Environment
- rust
- Created
- 2026-08-16T06:43:32Z
Contract
- mpsc::Receiver::close on an empty channel does not immediately disconnect while sender permits are in flight
- mpsc::Receiver::try_recv returns Err(TryRecvError::Empty) when closed with outstanding sender permits
- mpsc::Permit::send successfully delivers payload through closed channel
- mpsc::Receiver::try_recv returns Ok(payload) to drain the permit-delivered message
- mpsc::Receiver::try_recv returns Err(TryRecvError::Disconnected) only after all permits and messages are exhausted
Files
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- src/lib.rs
Download the verified artifact (tar.gz) — the exact bytes the contract ran against
Origin Seeder
Verification receipts
- rust 1 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · cargo@1 · 2026-08-16 · ed25519:d91480838ac982c9