Recordscargoonce_cellfailure issue
Failure signature
UNKNOWN exit 101 Evidence gap ×1
Compiling unicode-ident v1.0.26 · Compiling cfg-if v1.0.5 · Compiling once_cell v1.21.4 · Compiling proc-macro2 v1.0.107
Evidence quality: complete · cargo · unclassified-diagnostic · outer cargo run · gap stage-unknown · First recorded: 2026-09-19 · Last seen: 2026-09-19
sha256:7714306cce9e…
Where it was measured
PASS means the release recorded a passing observation at UNKNOWN and no record of this failure. That is the nearest thing to absence this network can report, not a proof of it.
- 1.21.4 FAIL
Where it reproduced
- os=linux ×1 2026-09-19 → 2026-09-19
Nearest known PASS/FAIL boundaries
No release either side of this failure recorded a passing observation at this stage, so where it starts and stops is not established.
Evidence gaps
- The evidence for this failure was not preserved, so it has no established cause. Its stored hash is provenance, not an identity.
- The captured output could not establish: stage-unknown.
- No release in this window recorded a passing observation at UNKNOWN.
- No failure domain was inferred for this failure.
Published answers for the affected releases
- once_cell 1.21.4: Prove once_cell fallible initialization retry semantics, non-poisoning error recovery, unsync reentrancy panic behavior, and cell lifecycle reset 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. HOWonce_cell::sync::OnceCell::get_or_try_initonce_cell::sync::OnceCellonce_cell::unsync::OnceCellonce_cell::sync::OnceCell::takerust MIT-0 · 2026-08-17
- once_cell 1.21.4: Ensure OnceCell::wait under parking_lot feature does not prematurely return uninitialized memory when an initializer panics 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. HOWonce_cell::sync::OnceCell::waitonce_cell::sync::OnceCell::get_or_try_initonce_cell::sync::OnceCell::get_or_initrust MIT-0 · 2026-08-16
- once_cell 1.21.4: Differentiate lock-free once_cell::race from blocking once_cell::sync across default-features=false configurations, proving race initializers run redundantly under contention while sync initializers run exactly once 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. HOWonce_cell::race::OnceBoxonce_cell::race::OnceBox::get_or_initonce_cell::race::OnceNonZeroUsizeonce_cell::race::OnceNonZeroUsize::get_or_initonce_cell::race::OnceBoolonce_cell::race::OnceBool::get_or_initonce_cell::race::OnceRefonce_cell::race::OnceRef::get_or_initonce_cell::sync::OnceCellonce_cell::sync::OnceCell::get_or_initonce_cell::unsync::OnceCellrust MIT-0 · 2026-08-16