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Issues list

Error mentions invalid nested HRTB: &mut for<'a> fn(for<'a> fn(&'a ())) A-diagnostics Area: Messages for errors, warnings, and lints A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-pretty Area: Pretty printing (including `-Z unpretty`) D-incorrect Diagnostics: A diagnostic that is giving misleading or incorrect information. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134410 opened Dec 17, 2024 by theemathas
1
Trait resolution fails, and then rustc hangs. A-associated-items Area: Associated items (types, constants & functions) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#134312 opened Dec 14, 2024 by frankmcsherry
compare_method_predicate_entailment is missing implied bounds from higher-ranked GAT A-GATs Area: Generic associated types (GATs) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-implied-bounds Area: Implied bounds / inferred outlives-bounds A-trait-system Area: Trait system C-bug Category: This is a bug. T-types Relevant to the types team, which will review and decide on the PR/issue.
#133805 opened Dec 3, 2024 by compiler-errors
Documentation uses HRTB lifetime before declaring it A-cross-crate-reexports Area: Documentation that has been re-exported from a different crate A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) C-bug Category: This is a bug. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#132879 opened Nov 10, 2024 by Scripter17
@fmease
1
Higher-ranked trait bounds in function signature incorrectly require bounds on the impl A-associated-items Area: Associated items (types, constants & functions) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. T-types Relevant to the types team, which will review and decide on the PR/issue.
#132089 opened Oct 24, 2024 by 8000thCube
1
A out-of-air lifetime that that may not live long vs. the implementation is not general enough A-diagnostics Area: Messages for errors, warnings, and lints A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-NLL Area: Non-lexical lifetimes (NLL) D-confusing Diagnostics: Confusing error or lint that should be reworked. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. NLL-diagnostics Working towards the "diagnostic parity" goal T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#131821 opened Oct 17, 2024 by xmh0511
2
Closure breaks function with higher-ranked trait bound A-closures Area: Closures (`|…| { … }`) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#131677 opened Oct 14, 2024 by drewtato
1
ICE: "error performing operation: fully_perform" on type inference for trait object with HRTB over GAT A-GATs Area: Generic associated types (GATs) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions A-trait-objects Area: trait objects, vtable layout A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130797 opened Sep 24, 2024 by arvidfm
1
ICE: broken MIR: NoSolution on HRTB over GAT in trait object A-GATs Area: Generic associated types (GATs) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions A-trait-objects Area: trait objects, vtable layout A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130524 opened Sep 18, 2024 by arvidfm
3
Higher ranked types in trait bounds result in confusing diagnostics A-diagnostics Area: Messages for errors, warnings, and lints A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions D-confusing Diagnostics: Confusing error or lint that should be reworked. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#124474 opened Apr 28, 2024 by WaffleLapkin
ICE: error performing ParamEnvAnd { ... } possibly related to (lack of) HRTBs in closures A-closures Area: Closures (`|…| { … }`) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#124440 opened Apr 27, 2024 by Carnagion
2
rustdoc: ICE: synthetic auto trait impls: no region_name found involving user-written impl that applies to higher-ranked lifetimes A-auto-traits Area: auto traits (e.g., `auto trait Send {}`) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions A-synthetic-impls Area: Synthetic impls, used by rustdoc to document auto traits and traits with blanket impls C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
#123298 opened Mar 31, 2024 by fmease
@fmease
1
Compiler indefinitely takes resources when HRTB is used in conjunction with lifetime in GAT A-GATs Area: Generic associated types (GATs) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#121821 opened Feb 29, 2024 by dodomorandi
2
HRTB and GAT problem A-GATs Area: Generic associated types (GATs) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) C-bug Category: This is a bug. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#121437 opened Feb 22, 2024 by davidli2010
4
Compiler can't unify arg-position impl Trait into an HRTB A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions A-trait-system Area: Trait system C-discussion Category: Discussion or questions that doesn't represent real issues. T-types Relevant to the types team, which will review and decide on the PR/issue.
#119045 opened Dec 17, 2023 by Patryk27
3
higher-ranked lifetime error A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#117140 opened Oct 24, 2023 by 4r33x
Unclear "higher-ranked lifetime error" error A-diagnostics Area: Messages for errors, warnings, and lints A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#115525 opened Sep 4, 2023 by DCNick3
3
async fn lifetime eliding satisfies HRTB where explicit does not A-async-await Area: Async & Await A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#114947 opened Aug 17, 2023 by Wolvereness
6
Trait bound inference seems to have trouble with implied higher-ranked trait bounds that become redundant when generic parameters are supplied A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-inference Area: Type inference A-lifetimes Area: Lifetimes / regions A-trait-system Area: Trait system C-bug Category: This is a bug. T-types Relevant to the types team, which will review and decide on the PR/issue.
#114101 opened Jul 26, 2023 by Zistack
Higher ranked lifetime error when tryng to see that a future is send. A-async-await Area: Async & Await A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) AsyncAwait-Triaged Async-await issues that have been triaged during a working group meeting. C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#114046 opened Jul 25, 2023 by antialize
1
HRTBs with two lifetimes: implementation is not general enough when impl uses lifetime bound A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#113967 opened Jul 22, 2023 by JanBeh
2
ICE: 'Ok([Binder {..}, ...) is not fully resolved' A-associated-items Area: Associated items (types, constants & functions) A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-trait-system Area: Trait system C-bug Category: This is a bug. fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ P-medium Medium priority regression-from-stable-to-stable Performance or correctness regression from one stable version to another. S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#113846 opened Jul 19, 2023 by gpace1
7
30+ duplicates on E0308 with expected and found being literally identical A-diagnostics Area: Messages for errors, warnings, and lints A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions D-confusing Diagnostics: Confusing error or lint that should be reworked. metabug Issues about issues themselves ("bugs about bugs") T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#112985 opened Jun 23, 2023 by hartwork
@fmease
3
Mismatch reported for fn impl with HRTB lifetime without cast A-diagnostics Area: Messages for errors, warnings, and lints A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) A-lifetimes Area: Lifetimes / regions D-confusing Diagnostics: Confusing error or lint that should be reworked. D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#112046 opened May 28, 2023 by mqudsi
4
Unhelpful higher-ranked lifetime error in non-async context A-borrow-checker Area: The borrow checker A-diagnostics Area: Messages for errors, warnings, and lints A-higher-ranked Area: Higher-ranked things (e.g., lifetimes, types, trait bounds aka HRTBs) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#111465 opened May 11, 2023 by veprolet
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