Language edition/toolchain drift
Rust 2024 edition prelude Future IntoFuture ambiguity unchanged module name resolution
An unchanged module gets a name-resolution ambiguity only in edition 2024.
Agent Quick Fix
Source may compile under an older edition/toolchain; current edition migration rules and tool metadata are external to the repo's immediate error context.
Product: Rust 2024
Current-contract area: `Future` prelude import creates an ambiguous local name
Likely root cause: An unchanged module gets a name-resolution ambiguity only in edition 2024.
Repair direction: Verifier checks idiomatic migration while preserving cross-version intent where required.Validation Status
Codex searched organically in the validation run. No no-web counterfactual is attached to this page yet.
Symptom
An unchanged module gets a name-resolution ambiguity only in edition 2024.
Why This Happens
Source may compile under an older edition/toolchain; current edition migration rules and tool metadata are external to the repo's immediate error context.
Verification
Verifier checks idiomatic migration while preserving cross-version intent where required.Common Wrong Fixes
- Changing local code without checking the current external contract.
- Retrying the same install, build, or API call with no version/source change.
- Applying a broad unsafe bypass when a narrow compatibility fix is available.
Codex Search Keywords
These are the search terms observed in a neutral Codex validation run for this failure shape.
Rust 2024 edition prelude Future IntoFuture ambiguity unchanged module name resolution
site:doc.rust-lang.org edition 2024 prelude Future
Rust 2024 prelude changes Future IntoFuture
https://doc.rust-lang.org/edition-guide/rust-2024/index.html
'prelude' in https://doc.rust-lang.org/edition-guide/rust-2024/index.html
https://doc.rust-lang.org/edition-guide/rust-2024/prelude.html
"future-prelude-import-creates-an-ambiguous-local-name"