[ICE]: predicate.rs:440:9

[alexander-markov-1977]

Code

use std::collections::HashMap;
use std::cell::{OnceCell, RefCell};

///////////////////////////////
// StatInfo - statistics
#[derive(Default, Debug, Clone, Copy)]
pub struct StatInfo  {
    total: usize,       // total size of th series
}

impl StatInfo {
    pub fn calculate<'a, I>(total: usize, iter: I) -> StatInfo where I: Iterator<Item = &'a f64> {
        StatInfo { total }
    }
}

///////////////////////////////
/// StatFrame - data frame
pub struct StatFrame<const N: usize> {
    num: Option<usize>,
    data: Vec<[f64; N]>,
    stat_info_cache: OnceCell<[StatInfo; N]>,
}

impl<const N: usize> StatFrame<N> {
    pub fn get_frame_stat_info(&self) -> [StatInfo; N] {
        let calc_fn = || {
            let mut res = [StatInfo::default(); N];
            for i in 0..N {
                res[i] = StatInfo::calculate(self.data.len(), self.data.iter().map(|f| &f[i]));
            }
            res
        };
        
        if let None = self.num {
            return calc_fn();
        }

        *self.stat_info_cache.get_or_init(calc_fn)
    }

    fn new() -> Self {
        Self{ num: None, data: Vec::new(), stat_info_cache: OnceCell::new() }
    }

    pub fn push(&mut self, value: [f64; N]) {
        self.data.push(value);
    }
}

//////////////////////////////
/// Statistics series - 
pub struct StatSeries<const N: usize> {
    headers: Vec<String>,
    frames: Vec<StatFrame<N>>,
    stat_info_cache: RefCell<HashMap<(usize, usize), [StatInfo; N]>>,
}

impl<const N: usize> StatSeries<N> {
    pub fn new<H>(headers: [H; N]) -> Self where String: for <'a> From<&'a H> {
        let headers: Vec<String> = (&headers[0..N]).iter().map(|s| String::from(s)).collect();
        Self{ headers, frames: Vec::new(), stat_info_cache: RefCell::new(HashMap::new()) }
    }

    pub fn complete_frame(&mut self, mut new_frame: StatFrame<N>) {
        new_frame.num = Some(self.frames.len());
        self.frames.push(new_frame);
    }
}

fn main() {
    let series = StatSeries::<2>::new(["time", "length"]);
    let mut writer = StatFrame::<2>::new();

    println!("Hello, world!");

    writer.push([2.0, 3.0]);
    series.complete_frame(writer);
}

Meta

rustc --version --verbose:

rustc 1.98.1 (48a229cea 2026-09-01)
binary: rustc
commit-hash: 48a229ceaefd4985c50990b14116b6d856af0985
commit-date: 2026-09-01
host: x86_64-pc-windows-msvc
release: 1.98.1
LLVM version: 22.1.8

Error output

   Compiling t v0.1.0 (C:\work\mipt\ann\t)

thread 'rustc' (40220) panicked at /rustc-dev/48a229ceaefd4985c50990b14116b6d856af0985/compiler\rustc_middle\src\ty\predicate.rs:440:9:
`TraitPredicate(<std::string::String as std::convert::From<&'a str>>, polarity:Positive)` has escaping bound vars, so it cannot be wrapped in a dummy binder.
stack backtrace:
   0:     0x7ff89c3819b9 - std::backtrace_rs::backtrace::win64::trace
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\..\..\backtrace\src\backtrace\win64.rs:85
   1:     0x7ff89c3819b9 - std::backtrace_rs::backtrace::trace_unsynchronized
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\..\..\backtrace\src\backtrace\mod.rs:66
   2:     0x7ff89c3819b9 - std::sys::backtrace::_print_fmt
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\sys\backtrace.rs:74
   3:     0x7ff89c3819b9 - std::sys::backtrace::impl$0::print::impl$0::fmt
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\sys\backtrace.rs:44
   4:     0x7ff89c3aa9f1 - core::fmt::write
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\core\src\fmt\mod.rs:0
   5:     0x7ff89c391874 - std::io::default_write_fmt
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\io\mod.rs:626
   6:     0x7ff89c391874 - std::io::Write::write_fmt<std::sys::stdio::windows::Stderr>
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\io\mod.rs:1730
   7:     0x7ff89c358255 - std::sys::backtrace::BacktraceLock::print
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\sys\backtrace.rs:47
   8:     0x7ff89c358255 - std::panicking::default_hook::closure$0
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\panicking.rs:292
   9:     0x7ff89c373bb8 - std::panicking::default_hook
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\panicking.rs:319
  10:     0x7fffb7b6ca9b - core[6380f46c71b215e4]::slice::sort::unstable::heapsort::heapsort::<((rustc_lint_defs[cc4061f12a820a34]::Level, &str), usize), <((rustc_lint_defs[cc4061f12a820a34]::Level, &str), usize) as core[6380f46c71b215e4]::cmp::PartialOrd>::lt>
  11:     0x7ff89c373fd4 - std::panicking::panic_with_hook
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\panicking.rs:823
  12:     0x7ff89c35832e - std::panicking::panic_handler::closure$0
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\panicking.rs:688
  13:     0x7ff89c3557af - std::sys::backtrace::__rust_end_short_backtrace<std::panicking::panic_handler::closure_env$0,never$>
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\sys\backtrace.rs:182
  14:     0x7ff89c358e7e - std::panicking::panic_handler
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\panicking.rs:679
  15:     0x7ff89c3ce38d - core::panicking::panic_fmt
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\core\src\panicking.rs:80
  16:     0x7fffb61a6583 - <rustc_middle[fafc4954b0cce51f]::ty::predicate::Predicate as rustc_type_ir[b4770ccbd73e2fc1]::upcast::UpcastFrom<rustc_middle[fafc4954b0cce51f]::ty::context::TyCtxt, rustc_type_ir[b4770ccbd73e2fc1]::predicate::TraitPredicate<rustc_middle[fafc4954b0cce51f]::ty::context::TyCtxt>>>::upcast_from
  17:     0x7fffb9b8eb27 - RINvMs0_NtCsinu1ktnSElL_21rustc_data_structures17obligation_forestINtB6_16ObligationForestNtNtNtCs3uc0NMkBLP_21rustc_trait_selection6traits7fulfill26PendingPredicateObligationE8compressNCINvB2_19process_obligationsNtNvXs0_B1s_INtB1s_18FulfillmentContextpEI
  18:     0x7fffb9cff9c9 - <rustc_trait_selection[a7b393a2f6556b]::error_reporting::TypeErrCtxt>::fuzzy_match_tys
  19:     0x7fffb9d0560f - <rustc_trait_selection[a7b393a2f6556b]::error_reporting::TypeErrCtxt>::note_obligation_cause
  20:     0x7fffb9cec87f - <rustc_trait_selection[a7b393a2f6556b]::error_reporting::TypeErrCtxt>::report_selection_error
  21:     0x7fffb9d187c0 - <rustc_trait_selection[a7b393a2f6556b]::error_reporting::TypeErrCtxt>::report_fulfillment_errors
  22:     0x7fffb64f8dcc - rustc_hir_typeck[93fe51c8ee75a5c7]::used_trait_imports
  23:     0x7fffb64da728 - rustc_hir_typeck[93fe51c8ee75a5c7]::used_trait_imports
  24:     0x7fffb653f43a - rustc_hir_typeck[93fe51c8ee75a5c7]::used_trait_imports
  25:     0x7fffb654453d - rustc_hir_typeck[93fe51c8ee75a5c7]::used_trait_imports
  26:     0x7fffb64dae69 - rustc_hir_typeck[93fe51c8ee75a5c7]::used_trait_imports
  27:     0x7fffb65e3a3d - rustc_hir_typeck[93fe51c8ee75a5c7]::intrinsicck::check_transmutes
  28:     0x7fffb64962cc - <hashbrown[aae0934c93aa5b95]::raw::RawTable<usize>>::reserve_rehash::<indexmap[6c9cd7c48621ec65]::inner::get_hash<(rustc_middle[fafc4954b0cce51f]::ty::predicate::Predicate, rustc_middle[fafc4954b0cce51f]::traits::ObligationCause), ()>::{closure#0}>
  29:     0x7fffb64aaa00 - rustc_hir_typeck[93fe51c8ee75a5c7]::typeck_root
  30:     0x7fffb71eac3b - rustc_query_impl[757a2518e15308ec]::dep_kind_vtables::make_dep_kind_vtables
  31:     0x7fffb70ebf3d - RINvMs6_NtCseFzGwGcGReH_9hashbrown3rawINtB6_8RawTableTTNtNtNtCslxZn9F6ZAXH_12rustc_middle2ty8instance8InstanceNtNtBX_4mono14CollectionModeETINtNtNtBX_5query5erase10ErasedDataAhj20_ENtNtNtBX_9dep_graph5graph12DepNodeIndexEEE14reserve_rehashNCNvMs1_NtCsinu1k
  32:     0x7fffb71eaae5 - rustc_query_impl[757a2518e15308ec]::dep_kind_vtables::make_dep_kind_vtables
  33:     0x7fffb664b7fc - rustc_hir_analysis[10dc7e69540c429d]::check_crate
  34:     0x7fffb634e190 - rustc_interface[d9e19aed855a9319]::passes::analysis
  35:     0x7fffb5e5853a - rustc_query_impl[757a2518e15308ec]::plumbing::verify_query_key_hashes
  36:     0x7fffb5d3be3c - <<rustc_ty_utils[a23332fb4bb35fd4]::opaque_types::OpaqueTypeCollector>::collect_taits_declared_in_body::TaitInBodyFinder as rustc_hir[55250e77a429a444]::intravisit::Visitor>::visit_nested_item
  37:     0x7fffb5e5848a - rustc_query_impl[757a2518e15308ec]::plumbing::verify_query_key_hashes
  38:     0x7fffb36d09e7 - std[2a1f8e54e2930f4]::sys::backtrace::__rust_begin_short_backtrace::<std[2a1f8e54e2930f4]::thread::lifecycle::spawn_unchecked<ctrlc[75dfe702384e6772]::set_handler_inner<rustc_driver_impl[9361cccfbcde1e27]::install_ctrlc_handler::{closure#0}>::{closure#0}, ()>::{closure#1}::{closure#0}::{closure#0}, ()>
  39:     0x7fffb36c8a05 - RINvNtNtCse0R8cuyqEa_3std3sys9backtrace28___rust_begin_short_backtraceNCNCINvNtCsiHMamp5DUIn_15rustc_interface4util26run_in_thread_with_globalsNCINvB1d_31run_in_thread_pool_with_globalsNCINvNtB1f_9interface12run_compileruNCNvCscEvGEeMUPR3_17rustc_driver_im
  40:     0x7fffb36d4a97 - std[2a1f8e54e2930f4]::sys::backtrace::__rust_begin_short_backtrace::<std[2a1f8e54e2930f4]::thread::lifecycle::spawn_unchecked<ctrlc[75dfe702384e6772]::set_handler_inner<rustc_driver_impl[9361cccfbcde1e27]::install_ctrlc_handler::{closure#0}>::{closure#0}, ()>::{closure#1}::{closure#0}::{closure#0}, ()>
  41:     0x7ff89c37e6a3 - std::sys::thread::windows::impl$0::new::thread_start
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\sys\thread\windows.rs:58
  42:     0x7ff8eeb4cd87 - BaseThreadInitThunk
  43:     0x7ff8efcecaec - RtlUserThreadStart

error: the compiler unexpectedly panicked. This is a bug

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.98.1 (48a229cea 2026-09-01) running on x86_64-pc-windows-msvc

note: compiler flags: --crate-type bin -C embed-bitcode=no -C debuginfo=2 -C incremental=[REDACTED]

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

query stack during panic:
#0 [typeck_root] type-checking `main`
#1 [analysis] running analysis passes on crate `t`
end of query stack
error: could not compile `t` (bin "t")

Caused by:
  process didn't exit successfully: `C:\Users\Alexander\.rustup\toolchains\stable-x86_64-pc-windows-msvc\bin\rustc.exe --crate-name t --edition=2024 src\main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --check-cfg cfg(docsrs,test) --check-cfg "cfg(feature, values())" -C metadata=35f9c81f52acd07b --out-dir C:\work\mipt\ann\t\target\debug\deps -C incremental=C:\work\mipt\ann\t\target\debug\incremental -L dependency=C:\work\mipt\ann\t\target\debug\deps` (exit code: 101)

Backtrace

   Compiling t v0.1.0 (C:\work\mipt\ann\t)

thread 'rustc' (19064) panicked at /rustc-dev/48a229ceaefd4985c50990b14116b6d856af0985/compiler\rustc_middle\src\ty\predicate.rs:440:9:
`TraitPredicate(<std::string::String as std::convert::From<&'a str>>, polarity:Positive)` has escaping bound vars, so it cannot be wrapped in a dummy binder.
stack backtrace:
   0:     0x7ff89c3819b9 - std::backtrace_rs::backtrace::win64::trace
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\..\..\backtrace\src\backtrace\win64.rs:85
   1:     0x7ff89c3819b9 - std::backtrace_rs::backtrace::trace_unsynchronized
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\..\..\backtrace\src\backtrace\mod.rs:66
   2:     0x7ff89c3819b9 - std::sys::backtrace::_print_fmt
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\sys\backtrace.rs:74
   3:     0x7ff89c3819b9 - std::sys::backtrace::impl$0::print::impl$0::fmt
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\sys\backtrace.rs:44
   4:     0x7ff89c3aa9f1 - core::fmt::write
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\core\src\fmt\mod.rs:0
   5:     0x7ff89c391874 - std::io::default_write_fmt
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\io\mod.rs:626
   6:     0x7ff89c391874 - std::io::Write::write_fmt<std::sys::stdio::windows::Stderr>
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\io\mod.rs:1730
   7:     0x7ff89c358255 - std::sys::backtrace::BacktraceLock::print
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\sys\backtrace.rs:47
   8:     0x7ff89c358255 - std::panicking::default_hook::closure$0
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\panicking.rs:292
   9:     0x7ff89c373bb8 - std::panicking::default_hook
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\panicking.rs:319
  10:     0x7fffb7b6ca9b - core[6380f46c71b215e4]::slice::sort::unstable::heapsort::heapsort::<((rustc_lint_defs[cc4061f12a820a34]::Level, &str), usize), <((rustc_lint_defs[cc4061f12a820a34]::Level, &str), usize) as core[6380f46c71b215e4]::cmp::PartialOrd>::lt>
  11:     0x7ff89c373fd4 - std::panicking::panic_with_hook
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\panicking.rs:823
  12:     0x7ff89c35832e - std::panicking::panic_handler::closure$0
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\panicking.rs:688
  13:     0x7ff89c3557af - std::sys::backtrace::__rust_end_short_backtrace<std::panicking::panic_handler::closure_env$0,never$>
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\sys\backtrace.rs:182
  14:     0x7ff89c358e7e - std::panicking::panic_handler
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\panicking.rs:679
  15:     0x7ff89c3ce38d - core::panicking::panic_fmt
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\core\src\panicking.rs:80
  16:     0x7fffb61a6583 - <rustc_middle[fafc4954b0cce51f]::ty::predicate::Predicate as rustc_type_ir[b4770ccbd73e2fc1]::upcast::UpcastFrom<rustc_middle[fafc4954b0cce51f]::ty::context::TyCtxt, rustc_type_ir[b4770ccbd73e2fc1]::predicate::TraitPredicate<rustc_middle[fafc4954b0cce51f]::ty::context::TyCtxt>>>::upcast_from
  17:     0x7fffb9b8eb27 - RINvMs0_NtCsinu1ktnSElL_21rustc_data_structures17obligation_forestINtB6_16ObligationForestNtNtNtCs3uc0NMkBLP_21rustc_trait_selection6traits7fulfill26PendingPredicateObligationE8compressNCINvB2_19process_obligationsNtNvXs0_B1s_INtB1s_18FulfillmentContextpEI
  18:     0x7fffb9cff9c9 - <rustc_trait_selection[a7b393a2f6556b]::error_reporting::TypeErrCtxt>::fuzzy_match_tys
  19:     0x7fffb9d0560f - <rustc_trait_selection[a7b393a2f6556b]::error_reporting::TypeErrCtxt>::note_obligation_cause
  20:     0x7fffb9cec87f - <rustc_trait_selection[a7b393a2f6556b]::error_reporting::TypeErrCtxt>::report_selection_error
  21:     0x7fffb9d187c0 - <rustc_trait_selection[a7b393a2f6556b]::error_reporting::TypeErrCtxt>::report_fulfillment_errors
  22:     0x7fffb64f8dcc - rustc_hir_typeck[93fe51c8ee75a5c7]::used_trait_imports
  23:     0x7fffb64da728 - rustc_hir_typeck[93fe51c8ee75a5c7]::used_trait_imports
  24:     0x7fffb653f43a - rustc_hir_typeck[93fe51c8ee75a5c7]::used_trait_imports
  25:     0x7fffb654453d - rustc_hir_typeck[93fe51c8ee75a5c7]::used_trait_imports
  26:     0x7fffb64dae69 - rustc_hir_typeck[93fe51c8ee75a5c7]::used_trait_imports
  27:     0x7fffb65e3a3d - rustc_hir_typeck[93fe51c8ee75a5c7]::intrinsicck::check_transmutes
  28:     0x7fffb64962cc - <hashbrown[aae0934c93aa5b95]::raw::RawTable<usize>>::reserve_rehash::<indexmap[6c9cd7c48621ec65]::inner::get_hash<(rustc_middle[fafc4954b0cce51f]::ty::predicate::Predicate, rustc_middle[fafc4954b0cce51f]::traits::ObligationCause), ()>::{closure#0}>
  29:     0x7fffb64aaa00 - rustc_hir_typeck[93fe51c8ee75a5c7]::typeck_root
  30:     0x7fffb71eac3b - rustc_query_impl[757a2518e15308ec]::dep_kind_vtables::make_dep_kind_vtables
  31:     0x7fffb70ebf3d - RINvMs6_NtCseFzGwGcGReH_9hashbrown3rawINtB6_8RawTableTTNtNtNtCslxZn9F6ZAXH_12rustc_middle2ty8instance8InstanceNtNtBX_4mono14CollectionModeETINtNtNtBX_5query5erase10ErasedDataAhj20_ENtNtNtBX_9dep_graph5graph12DepNodeIndexEEE14reserve_rehashNCNvMs1_NtCsinu1k
  32:     0x7fffb71eaae5 - rustc_query_impl[757a2518e15308ec]::dep_kind_vtables::make_dep_kind_vtables
  33:     0x7fffb664b7fc - rustc_hir_analysis[10dc7e69540c429d]::check_crate
  34:     0x7fffb634e190 - rustc_interface[d9e19aed855a9319]::passes::analysis
  35:     0x7fffb5e5853a - rustc_query_impl[757a2518e15308ec]::plumbing::verify_query_key_hashes
  36:     0x7fffb5d3be3c - <<rustc_ty_utils[a23332fb4bb35fd4]::opaque_types::OpaqueTypeCollector>::collect_taits_declared_in_body::TaitInBodyFinder as rustc_hir[55250e77a429a444]::intravisit::Visitor>::visit_nested_item
  37:     0x7fffb5e5848a - rustc_query_impl[757a2518e15308ec]::plumbing::verify_query_key_hashes
  38:     0x7fffb36d09e7 - std[2a1f8e54e2930f4]::sys::backtrace::__rust_begin_short_backtrace::<std[2a1f8e54e2930f4]::thread::lifecycle::spawn_unchecked<ctrlc[75dfe702384e6772]::set_handler_inner<rustc_driver_impl[9361cccfbcde1e27]::install_ctrlc_handler::{closure#0}>::{closure#0}, ()>::{closure#1}::{closure#0}::{closure#0}, ()>
  39:     0x7fffb36c8a05 - RINvNtNtCse0R8cuyqEa_3std3sys9backtrace28___rust_begin_short_backtraceNCNCINvNtCsiHMamp5DUIn_15rustc_interface4util26run_in_thread_with_globalsNCINvB1d_31run_in_thread_pool_with_globalsNCINvNtB1f_9interface12run_compileruNCNvCscEvGEeMUPR3_17rustc_driver_im
  40:     0x7fffb36d4a97 - std[2a1f8e54e2930f4]::sys::backtrace::__rust_begin_short_backtrace::<std[2a1f8e54e2930f4]::thread::lifecycle::spawn_unchecked<ctrlc[75dfe702384e6772]::set_handler_inner<rustc_driver_impl[9361cccfbcde1e27]::install_ctrlc_handler::{closure#0}>::{closure#0}, ()>::{closure#1}::{closure#0}::{closure#0}, ()>
  41:     0x7ff89c37e6a3 - std::sys::thread::windows::impl$0::new::thread_start
                               at /rustc/48a229ceaefd4985c50990b14116b6d856af0985/library\std\src\sys\thread\windows.rs:58
  42:     0x7ff8eeb4cd87 - BaseThreadInitThunk
  43:     0x7ff8efcecaec - RtlUserThreadStart

error: the compiler unexpectedly panicked. This is a bug

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.98.1 (48a229cea 2026-09-01) running on x86_64-pc-windows-msvc

note: compiler flags: --crate-type bin -C embed-bitcode=no -C debuginfo=2 -C incremental=[REDACTED]

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

query stack during panic:
#0 [typeck_root] type-checking `main`
#1 [analysis] running analysis passes on crate `t`
end of query stack
error: could not compile `t` (bin "t")

Caused by:
  process didn't exit successfully: `C:\Users\Alexander\.rustup\toolchains\stable-x86_64-pc-windows-msvc\bin\rustc.exe --crate-name t --edition=2024 src\main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --check-cfg cfg(docsrs,test) --check-cfg "cfg(feature, values())" -C metadata=35f9c81f52acd07b --out-dir C:\work\mipt\ann\t\target\debug\deps -C incremental=C:\work\mipt\ann\t\target\debug\incremental -L dependency=C:\work\mipt\ann\t\target\debug\deps` (exit code: 101)

[alexander-markov-1977]

The issue repproduces on Linux respectively.

[maxdexh]

Errors correctly in 1.80 and on next-solver

Edit: The fixed-by-next-solver label is still not in the allowed label list :/

@rustbot label T-types regression-from-stable-to-stable E-needs-bisection

[rustbot]

Error: Label fixed-by-next-solver can only be set by Rust team members

Please file an issue on GitHub at triagebot if there's a problem with this bot, or reach out on #triagebot on Zulip.

[lsunsi]

Reduced to:

struct StatSeries {}

impl StatSeries {
    fn new<H>(headers: [H; N]) -> ()
    where
        String: for<'a> From<&'a H>,
    {
    }
}

fn main() {
    let series = StatSeries::new([""]);
}

[lsunsi]

Regression in e7ef136.

searched nightlies: from nightly-2026-04-29 to nightly-2026-09-23
regressed nightly: nightly-2026-07-31
searched commit range: 1a833e1...8ab9fdf
regressed commit: be3d26d

bisected with cargo-bisect-rustc v0.6.11

Host triple: x86_64-unknown-linux-gnu
Reproduce with:

cargo bisect-rustc --start=2026-04-29 --end=2026-09-23 --regress=non-ice --without-cargo