Improve error message for AsyncFn trait failure for RPIT by compiler-errors · Pull Request #137910 · rust-lang/rust (original) (raw)

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Use a WellFormedDerived obligation cause to make sure we can turn an AsyncFnKindHelper trait goal into its parent AsyncFn* goal, then fix the logic for reporting AsyncFn* kind mismatches.

Best reviewed without whitespace.

Fixes #137905

r? oli-obk

rustbot added S-waiting-on-review

Status: Awaiting review from the assignee but also interested parties.

T-compiler

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Mar 3, 2025

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Without this, we'll report a misleading "due to this closure" note.

📌 Commit e213f4b has been approved by oli-obk

It is now in the queue for this repository.

bors added S-waiting-on-bors

Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

and removed S-waiting-on-review

Status: Awaiting review from the assignee but also interested parties.

labels

Mar 5, 2025

jieyouxu added a commit to jieyouxu/rust that referenced this pull request

Mar 5, 2025

…r, r=oli-obk

Improve error message for AsyncFn trait failure for RPIT

Use a WellFormedDerived obligation cause to make sure we can turn an AsyncFnKindHelper trait goal into its parent AsyncFn* goal, then fix the logic for reporting AsyncFn* kind mismatches.

Best reviewed without whitespace.

Fixes rust-lang#137905

r? oli-obk

bors added a commit to rust-lang-ci/rust that referenced this pull request

Mar 5, 2025

Rollup of 23 pull requests

Successful merges:

• rust-lang#137303 (Remove MaybeForgetReturn suggestion)
• rust-lang#137327 (Undeprecate env::home_dir)
• rust-lang#137358 (Match Ergonomics 2024: add context and examples to the unstable book)
• rust-lang#137534 ([rustdoc] hide item that is not marked as doc(inline) and whose src is doc(hidden))
• rust-lang#137565 (Try to point of macro expansion from resolver and method errors if it involves macro var)
• rust-lang#137637 (Check dyn flavor before registering upcast goal on wide pointer cast in MIR typeck)
• rust-lang#137643 (Add DWARF test case for non-C-like repr128 enums)
• rust-lang#137744 (Re-add Clone-derive on Thir)
• rust-lang#137758 (fix usage of ty decl macro fragments in attributes)
• rust-lang#137764 (Ensure that negative auto impls are always applicable)
• rust-lang#137772 (Fix char count in Display for ByteStr)
• rust-lang#137798 (ci: use ubuntu 24 on arm large runner)
• rust-lang#137802 (miri native-call support: all previously exposed provenance is accessible to the callee)
• rust-lang#137805 (adjust Layout debug printing to match the internal field name)
• rust-lang#137808 (Do not require that unsafe fields lack drop glue)
• rust-lang#137820 (Clarify why InhabitedPredicate::instantiate_opt exists)
• rust-lang#137825 (Provide more context on resolve error caused from incorrect RTN)
• rust-lang#137910 (Improve error message for AsyncFn trait failure for RPIT)
• rust-lang#137920 (interpret/provenance_map: consistently use range_is_empty)
• rust-lang#138038 (Update compiler-builtins to 0.1.151)
• rust-lang#138041 (bootstrap and compiletest: Use size_of_val from the prelude instead of imported)
• rust-lang#138046 (trim channel value in get_closest_merge_commit)
• rust-lang#138053 (Increase the max. custom try jobs requested to 20)

r? @ghost @rustbot modify labels: rollup

jieyouxu added a commit to jieyouxu/rust that referenced this pull request

Mar 5, 2025

…r, r=oli-obk

Improve error message for AsyncFn trait failure for RPIT

Use a WellFormedDerived obligation cause to make sure we can turn an AsyncFnKindHelper trait goal into its parent AsyncFn* goal, then fix the logic for reporting AsyncFn* kind mismatches.

Best reviewed without whitespace.

Fixes rust-lang#137905

r? oli-obk

bors added a commit to rust-lang-ci/rust that referenced this pull request

Mar 5, 2025

compiler-errors added a commit to compiler-errors/rust that referenced this pull request

Mar 6, 2025

…r, r=oli-obk

Improve error message for AsyncFn trait failure for RPIT

Use a WellFormedDerived obligation cause to make sure we can turn an AsyncFnKindHelper trait goal into its parent AsyncFn* goal, then fix the logic for reporting AsyncFn* kind mismatches.

Best reviewed without whitespace.

Fixes rust-lang#137905

r? oli-obk

Noratrieb added a commit to Noratrieb/rust that referenced this pull request

Mar 6, 2025

…r, r=oli-obk

Improve error message for AsyncFn trait failure for RPIT

Use a WellFormedDerived obligation cause to make sure we can turn an AsyncFnKindHelper trait goal into its parent AsyncFn* goal, then fix the logic for reporting AsyncFn* kind mismatches.

Best reviewed without whitespace.

Fixes rust-lang#137905

r? oli-obk

Noratrieb added a commit to Noratrieb/rust that referenced this pull request

Mar 6, 2025

…compiler-errors

Rollup of 20 pull requests

Successful merges:

• rust-lang#137303 (Remove MaybeForgetReturn suggestion)
• rust-lang#137327 (Undeprecate env::home_dir)
• rust-lang#137358 (Match Ergonomics 2024: add context and examples to the unstable book)
• rust-lang#137502 (Don't include global asm in mir_keys, fix error body synthesis)
• rust-lang#137534 ([rustdoc] hide item that is not marked as doc(inline) and whose src is doc(hidden))
• rust-lang#137565 (Try to point of macro expansion from resolver and method errors if it involves macro var)
• rust-lang#137637 (Check dyn flavor before registering upcast goal on wide pointer cast in MIR typeck)
• rust-lang#137643 (Add DWARF test case for non-C-like repr128 enums)
• rust-lang#137744 (Re-add Clone-derive on Thir)
• rust-lang#137758 (fix usage of ty decl macro fragments in attributes)
• rust-lang#137764 (Ensure that negative auto impls are always applicable)
• rust-lang#137772 (Fix char count in Display for ByteStr)
• rust-lang#137798 (ci: use ubuntu 24 on arm large runner)
• rust-lang#137802 (miri native-call support: all previously exposed provenance is accessible to the callee)
• rust-lang#137805 (adjust Layout debug printing to match the internal field name)
• rust-lang#137808 (Do not require that unsafe fields lack drop glue)
• rust-lang#137820 (Clarify why InhabitedPredicate::instantiate_opt exists)
• rust-lang#137825 (Provide more context on resolve error caused from incorrect RTN)
• rust-lang#137868 (Add minimal platform support documentation for powerpc-unknown-linux-gnuspe)
• rust-lang#137910 (Improve error message for AsyncFn trait failure for RPIT)

r? @ghost @rustbot modify labels: rollup

bors added a commit to rust-lang-ci/rust that referenced this pull request

Mar 6, 2025

…mpiler-errors

Rollup of 20 pull requests

Successful merges:

• rust-lang#137303 (Remove MaybeForgetReturn suggestion)
• rust-lang#137327 (Undeprecate env::home_dir)
• rust-lang#137358 (Match Ergonomics 2024: add context and examples to the unstable book)
• rust-lang#137502 (Don't include global asm in mir_keys, fix error body synthesis)
• rust-lang#137534 ([rustdoc] hide item that is not marked as doc(inline) and whose src is doc(hidden))
• rust-lang#137565 (Try to point of macro expansion from resolver and method errors if it involves macro var)
• rust-lang#137637 (Check dyn flavor before registering upcast goal on wide pointer cast in MIR typeck)
• rust-lang#137643 (Add DWARF test case for non-C-like repr128 enums)
• rust-lang#137744 (Re-add Clone-derive on Thir)
• rust-lang#137758 (fix usage of ty decl macro fragments in attributes)
• rust-lang#137764 (Ensure that negative auto impls are always applicable)
• rust-lang#137772 (Fix char count in Display for ByteStr)
• rust-lang#137798 (ci: use ubuntu 24 on arm large runner)
• rust-lang#137802 (miri native-call support: all previously exposed provenance is accessible to the callee)
• rust-lang#137805 (adjust Layout debug printing to match the internal field name)
• rust-lang#137808 (Do not require that unsafe fields lack drop glue)
• rust-lang#137820 (Clarify why InhabitedPredicate::instantiate_opt exists)
• rust-lang#137825 (Provide more context on resolve error caused from incorrect RTN)
• rust-lang#137868 (Add minimal platform support documentation for powerpc-unknown-linux-gnuspe)
• rust-lang#137910 (Improve error message for AsyncFn trait failure for RPIT)

r? @ghost @rustbot modify labels: rollup

bors added a commit to rust-lang-ci/rust that referenced this pull request

Mar 6, 2025

…mpiler-errors

Rollup of 20 pull requests

Successful merges:

• rust-lang#137303 (Remove MaybeForgetReturn suggestion)
• rust-lang#137327 (Undeprecate env::home_dir)
• rust-lang#137358 (Match Ergonomics 2024: add context and examples to the unstable book)
• rust-lang#137502 (Don't include global asm in mir_keys, fix error body synthesis)
• rust-lang#137534 ([rustdoc] hide item that is not marked as doc(inline) and whose src is doc(hidden))
• rust-lang#137565 (Try to point of macro expansion from resolver and method errors if it involves macro var)
• rust-lang#137637 (Check dyn flavor before registering upcast goal on wide pointer cast in MIR typeck)
• rust-lang#137643 (Add DWARF test case for non-C-like repr128 enums)
• rust-lang#137744 (Re-add Clone-derive on Thir)
• rust-lang#137758 (fix usage of ty decl macro fragments in attributes)
• rust-lang#137764 (Ensure that negative auto impls are always applicable)
• rust-lang#137772 (Fix char count in Display for ByteStr)
• rust-lang#137798 (ci: use ubuntu 24 on arm large runner)
• rust-lang#137802 (miri native-call support: all previously exposed provenance is accessible to the callee)
• rust-lang#137805 (adjust Layout debug printing to match the internal field name)
• rust-lang#137808 (Do not require that unsafe fields lack drop glue)
• rust-lang#137820 (Clarify why InhabitedPredicate::instantiate_opt exists)
• rust-lang#137825 (Provide more context on resolve error caused from incorrect RTN)
• rust-lang#137868 (Add minimal platform support documentation for powerpc-unknown-linux-gnuspe)
• rust-lang#137910 (Improve error message for AsyncFn trait failure for RPIT)

r? @ghost @rustbot modify labels: rollup

bors added a commit to rust-lang-ci/rust that referenced this pull request

Mar 6, 2025

…mpiler-errors

Rollup of 25 pull requests

Successful merges:

• rust-lang#135733 (Implement &pin const self and &pin mut self sugars)
• rust-lang#135895 (Document workings of successors more clearly)
• rust-lang#136922 (Pattern types: Avoid having to handle an Option for range ends in the type system or the HIR)
• rust-lang#137303 (Remove MaybeForgetReturn suggestion)
• rust-lang#137327 (Undeprecate env::home_dir)
• rust-lang#137358 (Match Ergonomics 2024: add context and examples to the unstable book)
• rust-lang#137534 ([rustdoc] hide item that is not marked as doc(inline) and whose src is doc(hidden))
• rust-lang#137565 (Try to point of macro expansion from resolver and method errors if it involves macro var)
• rust-lang#137637 (Check dyn flavor before registering upcast goal on wide pointer cast in MIR typeck)
• rust-lang#137643 (Add DWARF test case for non-C-like repr128 enums)
• rust-lang#137744 (Re-add Clone-derive on Thir)
• rust-lang#137758 (fix usage of ty decl macro fragments in attributes)
• rust-lang#137764 (Ensure that negative auto impls are always applicable)
• rust-lang#137772 (Fix char count in Display for ByteStr)
• rust-lang#137798 (ci: use ubuntu 24 on arm large runner)
• rust-lang#137802 (miri native-call support: all previously exposed provenance is accessible to the callee)
• rust-lang#137805 (adjust Layout debug printing to match the internal field name)
• rust-lang#137808 (Do not require that unsafe fields lack drop glue)
• rust-lang#137820 (Clarify why InhabitedPredicate::instantiate_opt exists)
• rust-lang#137825 (Provide more context on resolve error caused from incorrect RTN)
• rust-lang#137834 (rustc_fluent_macro: use CARGO_CRATE_NAME instead of CARGO_PKG_NAME)
• rust-lang#137868 (Add minimal platform support documentation for powerpc-unknown-linux-gnuspe)
• rust-lang#137910 (Improve error message for AsyncFn trait failure for RPIT)
• rust-lang#137920 (interpret/provenance_map: consistently use range_is_empty)
• rust-lang#138038 (Update compiler-builtins to 0.1.151)

r? @ghost @rustbot modify labels: rollup

bors added a commit to rust-lang-ci/rust that referenced this pull request

Mar 6, 2025

…mpiler-errors

Rollup of 25 pull requests

Successful merges:

• rust-lang#135733 (Implement &pin const self and &pin mut self sugars)
• rust-lang#135895 (Document workings of successors more clearly)
• rust-lang#136922 (Pattern types: Avoid having to handle an Option for range ends in the type system or the HIR)
• rust-lang#137303 (Remove MaybeForgetReturn suggestion)
• rust-lang#137327 (Undeprecate env::home_dir)
• rust-lang#137358 (Match Ergonomics 2024: add context and examples to the unstable book)
• rust-lang#137534 ([rustdoc] hide item that is not marked as doc(inline) and whose src is doc(hidden))
• rust-lang#137565 (Try to point of macro expansion from resolver and method errors if it involves macro var)
• rust-lang#137637 (Check dyn flavor before registering upcast goal on wide pointer cast in MIR typeck)
• rust-lang#137643 (Add DWARF test case for non-C-like repr128 enums)
• rust-lang#137744 (Re-add Clone-derive on Thir)
• rust-lang#137758 (fix usage of ty decl macro fragments in attributes)
• rust-lang#137764 (Ensure that negative auto impls are always applicable)
• rust-lang#137772 (Fix char count in Display for ByteStr)
• rust-lang#137798 (ci: use ubuntu 24 on arm large runner)
• rust-lang#137802 (miri native-call support: all previously exposed provenance is accessible to the callee)
• rust-lang#137805 (adjust Layout debug printing to match the internal field name)
• rust-lang#137808 (Do not require that unsafe fields lack drop glue)
• rust-lang#137820 (Clarify why InhabitedPredicate::instantiate_opt exists)
• rust-lang#137825 (Provide more context on resolve error caused from incorrect RTN)
• rust-lang#137834 (rustc_fluent_macro: use CARGO_CRATE_NAME instead of CARGO_PKG_NAME)
• rust-lang#137868 (Add minimal platform support documentation for powerpc-unknown-linux-gnuspe)
• rust-lang#137910 (Improve error message for AsyncFn trait failure for RPIT)
• rust-lang#137920 (interpret/provenance_map: consistently use range_is_empty)
• rust-lang#138038 (Update compiler-builtins to 0.1.151)

r? @ghost @rustbot modify labels: rollup

rust-timer added a commit to rust-lang-ci/rust that referenced this pull request

Mar 7, 2025

Rollup merge of rust-lang#137910 - compiler-errors:async-fn-goal-error, r=oli-obk

Improve error message for AsyncFn trait failure for RPIT

Use a WellFormedDerived obligation cause to make sure we can turn an AsyncFnKindHelper trait goal into its parent AsyncFn* goal, then fix the logic for reporting AsyncFn* kind mismatches.

Best reviewed without whitespace.

Fixes rust-lang#137905

r? oli-obk

github-actions bot pushed a commit to model-checking/verify-rust-std that referenced this pull request

Mar 14, 2025

…mpiler-errors

Rollup of 25 pull requests

Successful merges:

• rust-lang#135733 (Implement &pin const self and &pin mut self sugars)
• rust-lang#135895 (Document workings of successors more clearly)
• rust-lang#136922 (Pattern types: Avoid having to handle an Option for range ends in the type system or the HIR)
• rust-lang#137303 (Remove MaybeForgetReturn suggestion)
• rust-lang#137327 (Undeprecate env::home_dir)
• rust-lang#137358 (Match Ergonomics 2024: add context and examples to the unstable book)
• rust-lang#137534 ([rustdoc] hide item that is not marked as doc(inline) and whose src is doc(hidden))
• rust-lang#137565 (Try to point of macro expansion from resolver and method errors if it involves macro var)
• rust-lang#137637 (Check dyn flavor before registering upcast goal on wide pointer cast in MIR typeck)
• rust-lang#137643 (Add DWARF test case for non-C-like repr128 enums)
• rust-lang#137744 (Re-add Clone-derive on Thir)
• rust-lang#137758 (fix usage of ty decl macro fragments in attributes)
• rust-lang#137764 (Ensure that negative auto impls are always applicable)
• rust-lang#137772 (Fix char count in Display for ByteStr)
• rust-lang#137798 (ci: use ubuntu 24 on arm large runner)
• rust-lang#137802 (miri native-call support: all previously exposed provenance is accessible to the callee)
• rust-lang#137805 (adjust Layout debug printing to match the internal field name)
• rust-lang#137808 (Do not require that unsafe fields lack drop glue)
• rust-lang#137820 (Clarify why InhabitedPredicate::instantiate_opt exists)
• rust-lang#137825 (Provide more context on resolve error caused from incorrect RTN)
• rust-lang#137834 (rustc_fluent_macro: use CARGO_CRATE_NAME instead of CARGO_PKG_NAME)
• rust-lang#137868 (Add minimal platform support documentation for powerpc-unknown-linux-gnuspe)
• rust-lang#137910 (Improve error message for AsyncFn trait failure for RPIT)
• rust-lang#137920 (interpret/provenance_map: consistently use range_is_empty)
• rust-lang#138038 (Update compiler-builtins to 0.1.151)

r? @ghost @rustbot modify labels: rollup

Labels

S-waiting-on-bors

Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

T-compiler

Relevant to the compiler team, which will review and decide on the PR/issue.