Recordsgolanggolang.org/x/expfailure issue
Failure signature
PROJECT_COMPILE exit 1 ×1
test/contract.go:<n>:<n>: <str> imported and not used
Evidence quality: complete · go/compiler · compiler-diagnostic · outer go run · First recorded: 2026-09-03 · Last seen: 2026-09-03
sha256:d5fae02e8604…
golang.org/x/exp/mmap.Open golang.org/x/exp/mmap.ReaderAt
Where it was measured
PASS means the release recorded a passing observation at PROJECT_COMPILE and no record of this failure. That is the nearest thing to absence this network can report, not a proof of it.
- v0.0.0-20260824195058-e88cd73687aa FAIL
- v0.0.0-20251023183803-a4bb9ffd2546 not measured
- v0.0.0-20240506185415-9bf2ced13842 not measured
- v0.0.0-20230515195305-f3d0a9c9a5cc not measured
Where it reproduced
- os=linux · runtime=go@1.26 ×1 2026-09-03 → 2026-09-03
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.
Dependency versions across releases
What each release of this package resolved its children to. A child whose version moved is listed first: that is where an upgrade changed something underneath you.
| Library | v0.0.0-20260824195058-e88cd73687aa | v0.0.0-20251023183803-a4bb9ffd2546 | v0.0.0-20240506185415-9bf2ced13842 | v0.0.0-20230515195305-f3d0a9c9a5cc |
|---|---|---|---|---|
| github.com/google/go-cmp | v0.6.0 | v0.7.0 | v0.6.0 | v0.6.0 |
| golang.org/x/mod | v0.39.0 | v0.37.0 | v0.17.0 | v0.6.0 |
| golang.org/x/tools | v0.49.0 | v0.46.0 | v0.21.0 | v0.2.0 |
| golang.org/x/tools/go/packages/packagestest | v0.1.1-deprecated | v0.1.1-deprecated | — | — |
Moved: 3 · unchanged at every release: 1
An edge records that a resolver placed one release beside another on a real machine. It is not a claim that the two work together; that question is answered by samples and contracts, not by presence here.
Evidence gaps
- No release in this window recorded a passing observation at PROJECT_COMPILE.
- Releases in this window never measured at PROJECT_COMPILE: 3
- No failure domain was inferred for this failure.
Published answers for the affected releases
- golang.org/x/exp v0.0.0-20260824195058-e88cd73687aa: rand.New 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. HOWgolang.org/x/exp/rand.New MIT-0 · 2026-09-04
- golang.org/x/exp v0.0.0-20260824195058-e88cd73687aa: utf8string.NewString, utf8string.String.At, utf8string.String.Slice 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. HOWgolang.org/x/exp/utf8string.NewStringgolang.org/x/exp/utf8string.String.Atgolang.org/x/exp/utf8string.String.Slice MIT-0 · 2026-09-03
- golang.org/x/exp v0.0.0-20260824195058-e88cd73687aa: ebnf.Parse, ebnf.Verify 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. HOWgolang.org/x/exp/ebnf.Parsegolang.org/x/exp/ebnf.Verify MIT-0 · 2026-09-03