Wasmtime GitHub notifications bot (Aug 24 2026 at 14:54): Wasmtime GitHub notifications bot (Aug 24 2026 at 14:54):alexcrichton opened PR #14193 from alexcrichton:fix-nightly-compile to bytecodealliance:main:
Nightly Rust has a new trait solver enabled which trips up on type inference for some of Wasmtime's
bindgen!-generated code. The minimized failure doesn't look obviously the fault of the new solver, nor the fault of Wasmtime here, so I've opted to just apply the fix here for now. This additionally handles a new recursion limit warning on nightly as well.<!--
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Wasmtime GitHub notifications bot (Aug 24 2026 at 14:54):alexcrichton requested cfallin for a review on PR #14193.
Wasmtime GitHub notifications bot (Aug 24 2026 at 14:54):alexcrichton requested wasmtime-core-reviewers for a review on PR #14193.
Wasmtime GitHub notifications bot (Aug 24 2026 at 14:54):alexcrichton requested fitzgen for a review on PR #14193.
Wasmtime GitHub notifications bot (Aug 24 2026 at 14:54):alexcrichton requested wasmtime-default-reviewers for a review on PR #14193.
Wasmtime GitHub notifications bot (Aug 24 2026 at 15:10):alexcrichton updated PR #14193.
Wasmtime GitHub notifications bot (Aug 24 2026 at 15:12)::thumbs_up: cfallin submitted PR review.
Wasmtime GitHub notifications bot (Aug 24 2026 at 15:12):cfallin has enabled auto merge for PR #14193.
Wasmtime GitHub notifications bot (Aug 24 2026 at 15:19):cfallin added PR #14193 Fix compile on latest Rust nightly to the merge queue.
Wasmtime GitHub notifications bot (Aug 24 2026 at 15:21):bjorn3 commented on PR #14193:
Has a rustc issue been opened for this?
Wasmtime GitHub notifications bot (Aug 24 2026 at 15:47)::check: cfallin merged PR #14193.
Wasmtime GitHub notifications bot (Aug 24 2026 at 15:47):cfallin removed PR #14193 Fix compile on latest Rust nightly from the merge queue.
Wasmtime GitHub notifications bot (Aug 24 2026 at 15:47):alexcrichton commented on PR #14193:
I've not yet opened an issue, no. If you'd like to though the minimal example is:
pub trait HasData { type Data<'a>; } pub fn with_getter<D2: HasData>(_get: fn(&()) -> D2::Data<'_>) {} pub fn caller<D: HasData>(getter: fn(&()) -> D::Data<'_>) { with_getter(getter); // ERROR }to me this seems like an intentional fix for something that should have been ambiguous in the first place
Last updated: Aug 30 2026 at 09:07 UTC