[ICE clippy]: `'rustc' panicked at compiler/rustc_infer/src/infer/at.rs:453:17`

[StackOverflowExcept1on]

Description

I can't reproduce on my local machine, but our CI doesn't work: https://github.com/gear-tech/gear/actions/runs/7150275036/job/19473393593#step:8:2002

Affected release channels

• Current Nightly

Rust Version

rustc 1.76.0-nightly (f967532a4 2023-12-08)
binary: rustc
commit-hash: f967532a47eb728ada44473a5c4c2eca1a45fe30
commit-date: 2023-12-08
host: x86_64-unknown-linux-gnu
release: 1.76.0-nightly
LLVM version: 17.0.5

Current error output

No response

Backtrace

Checking gear-node-loader v1.0.3 (/home/runner/work/gear/gear/utils/node-loader)
thread 'rustc' panicked at compiler/rustc_infer/src/infer/at.rs:453:17:
`<impl futures::Future<Output = gstd::Result<(gear_core::ids::MessageId, gear_core::ids::ProgramId, primitive_types::H256), gclient::Error>> as std::future::IntoFuture>` has escaping bound vars, so it cannot be wrapped in a dummy binder.
stack backtrace:
   0: rust_begin_unwind
             at /rustc/f967532a47eb728ada44473a5c4c2eca1a45fe30/library/std/src/panicking.rs:645:5
   1: core::panicking::panic_fmt
             at /rustc/f967532a47eb728ada44473a5c4c2eca1a45fe30/library/core/src/panicking.rs:72:14
   2: <rustc_trait_selection::traits::select::SelectionContext>::match_impl
   3: <rustc_trait_selection::traits::select::SelectionContext>::assemble_candidates_from_impls
   4: <rustc_trait_selection::traits::select::SelectionContext>::candidate_from_obligation_no_cache
   5: <rustc_trait_selection::traits::select::SelectionContext>::candidate_from_obligation
   6: <rustc_trait_selection::traits::select::SelectionContext>::evaluate_trait_predicate_recursively
   7: <rustc_trait_selection::traits::select::SelectionContext>::evaluation_probe::<<rustc_trait_selection::traits::select::SelectionContext>::evaluate_root_obligation::{closure#0}>
   8: rustc_traits::evaluate_obligation::evaluate_obligation
      [... omitted 1 frame ...]
   9: <rustc_infer::infer::InferCtxt as rustc_trait_selection::traits::query::evaluate_obligation::InferCtxtExt>::evaluate_obligation_no_overflow
  10: <rustc_infer::infer::InferCtxt as rustc_trait_selection::traits::query::evaluate_obligation::InferCtxtExt>::predicate_must_hold_modulo_regions
  11: clippy_lints::methods::unnecessary_to_owned::can_change_type
  12: <clippy_lints::methods::Methods as rustc_lint::passes::LateLintPass>::check_expr
  13: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr::{closure#0}
  14: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr
  15: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr::{closure#0}
  16: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr
  17: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr::{closure#0}
  18: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr
  19: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr::{closure#0}
  20: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr
  21: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr::{closure#0}
  22: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr
  23: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr::{closure#0}
  24: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr
  25: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_block
  26: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr::{closure#0}
  27: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr
  28: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_nested_body
  29: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_fn
  30: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr::{closure#0}
  31: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr
  32: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_block
  33: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr::{closure#0}
  34: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_expr
  35: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_nested_body
  36: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_fn
  37: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_item
  38: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_mod
  39: rustc_lint::late::check_crate::{closure#0}
  40: rustc_lint::late::check_crate
  41: rustc_interface::passes::analysis
      [... omitted 1 frame ...]
  42: rustc_interface::interface::run_compiler::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#0}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust-clippy/issues/new?template=ice.yml

note: please attach the file at `/home/runner/work/gear/gear/rustc-ice-2023-12-09T09_13_10-22245.txt` to your bug report

note: compiler flags: -C embed-bitcode=no -C debuginfo=2

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [evaluate_obligation] evaluating trait selection obligation `gclient::api::calls::<impl gclient::api::GearApi>::upload_program_bytes::{opaque#0}: core::future::into_future::IntoFuture`
rust-lang/rust#1 [analysis] running analysis passes on this crate
end of query stack
note: Clippy version: clippy 0.1.76 (f967532 2023-12-08)

Anything else?

No response

[StackOverflowExcept1on]

I did minimal example for that:

#[derive(Clone)]
pub struct MyApi;

impl MyApi {
    pub async fn new() -> Result<Self, ()> {
        Ok(Self)
    }

    pub async fn foo(&self, bytes: impl AsRef<[u8]>) -> Result<(), ()> {
        todo!()
    }
}

async fn foo() -> Result<(), ()> {
    let api = MyApi::new().await.unwrap();
    let _ = api.foo([].to_vec()).await; //when using .to_vec() on [] clippy panics

    Ok(())
}

cargo +nightly-2023-12-11 clippy

[matthiaskrgr]

Thanks! Seems to be a problem with the unnecessary_to_owned lint:
30: 0x564350c9a408 - clippy_lints[b764d8081ba1a0ba]::methods::unnecessary_to_owned::can_change_typ

clippy-driver a.rs --edition=2021 --crate-type lib

[matthiaskrgr]

I will move this to the clippy repo