ICE: "Span must not be empty and have no suggestion" -Wunused-lifetimes

[matthiaskrgr]

Code

code from src/test/ui/deriving/issue-89188-gat-hrtb.rs

requires debug assertions

trait Trait2 {
    type As;
}

#[derive(Clone)]
struct ShimMethod4<T: Trait2 + 'static>(pub &'static dyn for<'s> Fn(&'s mut T::As));

pub fn main() {}

Meta

rustc --version --verbose:

commit f90a4ff26c9743abf612f015c4398d7158b646b6 (origin/master, origin/HEAD)
Merge: 338cfd3cce4 fb471de5a91
Author: bors <bors@rust-lang.org>
Date:   Mon Nov 14 03:15:03 2022 +0000

    Auto merge of #104188 - jyn514:download-config-only, r=Mark-Simulacrum

    Make all download functions need only Config, not Builder

    This also adds a new `mod download` instead of scattering the download code across `config.rs` and `native.rs`.

    This is the simplest and also most bit-rotty part of https://github.com/rust-lang/rust/pull/102282. Opening it earlier so it's not mixed in with behavior changes and to avoid rebase hell.

    cc https://github.com/rust-lang/rust/issues/94829 (which nows has the hackmd linked).

    r? `@Mark-Simulacrum`

Error output

rustc issue-89188-gat-hrtb.rs -Wunused-lifetimes

<output>

Backtrace

thread 'rustc' panicked at 'Span must not be empty and have no suggestion', /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_errors/src/diagnostic.rs:705:9
stack backtrace:
   0:     0x7fadb50ed16e - std::backtrace_rs::backtrace::libunwind::trace::h20aef043cdda4287
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7fadb50ed16e - std::backtrace_rs::backtrace::trace_unsynchronized::h8e9d3289ebe01a24
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fadb50ed16e - std::sys_common::backtrace::_print_fmt::h416981a15f7e5658
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7fadb50ed16e - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5652316ee687b536
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fadb516bb08 - core::fmt::write::h1efe05f8990e10dd
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1209:17
   5:     0x7fadb50bcdbf - std::io::Write::write_fmt::h8360f7396a5a5a7f
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/io/mod.rs:1682:15
   6:     0x7fadb50ecf65 - std::sys_common::backtrace::_print::h600af6a870930d97
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7fadb50ecf65 - std::sys_common::backtrace::print::he1c1ef798353f4b1
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7fadb50c4674 - std::panicking::default_hook::{{closure}}::h531c4dd142c604f1
   9:     0x7fadb50c4395 - std::panicking::default_hook::h03e1b2fb6eeff4ff
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:286:9
  10:     0x7fadb5f0c922 - <alloc[b3cef25e8b2bd255]::boxed::Box<dyn for<'a, 'b> core[54e86a843f8c5207]::ops::function::Fn<(&'a core[54e86a843f8c5207]::panic::panic_info::PanicInfo<'b>,), Output = ()> + core[54e86a843f8c5207]::marker::Sync + core[54e86a843f8c5207]::marker::Send> as core[54e86a843f8c5207]::ops::function::Fn<(&core[54e86a843f8c5207]::panic::panic_info::PanicInfo,)>>::call
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2024:9
  11:     0x7fadb5f0c922 - rustc_driver[2263e2b5cfa3b26]::DEFAULT_HOOK::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:1207:13
  12:     0x7fadb50c4d57 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h28b3c3a4d1b38a94
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2024:9
  13:     0x7fadb50c4d57 - std::panicking::rust_panic_with_hook::hdc1e819d4d631134
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:692:13
  14:     0x7fadb50ed4b1 - std::panicking::begin_panic_handler::{{closure}}::hfbca247f089ae3e5
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:577:13
  15:     0x7fadb50ed2be - std::sys_common::backtrace::__rust_end_short_backtrace::h93a982a5fc679421
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:137:18
  16:     0x7fadb50c4872 - rust_begin_unwind
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:575:5
  17:     0x7fadb507aef3 - core::panicking::panic_fmt::h43c239f62329fe2a
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:65:14
  18:     0x7fadb6186504 - <rustc_errors[cd0f51f5e14dc108]::diagnostic::Diagnostic>::span_suggestion_with_style::<&str, &str>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_errors/src/diagnostic.rs:705:9
  19:     0x7fadb614306a - <rustc_errors[cd0f51f5e14dc108]::diagnostic::Diagnostic>::span_suggestion::<&str, &str>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_errors/src/diagnostic.rs:686:9
  20:     0x7fadb614306a - <rustc_errors[cd0f51f5e14dc108]::diagnostic_builder::DiagnosticBuilder<()>>::span_suggestion::<&str, &str>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_errors/src/diagnostic_builder.rs:375:13
  21:     0x7fadb614306a - <rustc_lint[d67a0c8371fb2a56]::context::EarlyContext as rustc_lint[d67a0c8371fb2a56]::context::LintContext>::lookup_with_diagnostics::<rustc_error_messages[8272cb8d8bd8ce89]::MultiSpan, rustc_error_messages[8272cb8d8bd8ce89]::DiagnosticMessage, <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::check_id::{closure#0}>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/context.rs:843:21
  22:     0x7fadb614306a - <<rustc_lint[d67a0c8371fb2a56]::context::EarlyContext as rustc_lint[d67a0c8371fb2a56]::context::LintContext>::lookup_with_diagnostics<rustc_error_messages[8272cb8d8bd8ce89]::MultiSpan, rustc_error_messages[8272cb8d8bd8ce89]::DiagnosticMessage, <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::check_id::{closure#0}>::{closure#0} as core[54e86a843f8c5207]::ops::function::FnOnce<(&mut rustc_errors[cd0f51f5e14dc108]::diagnostic_builder::DiagnosticBuilder<()>,)>>::call_once::{shim:vtable#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/ops/function.rs:427:5
  23:     0x7fadb613bb11 - <alloc[b3cef25e8b2bd255]::boxed::Box<dyn for<'a, 'b> core[54e86a843f8c5207]::ops::function::FnOnce<(&'a mut rustc_errors[cd0f51f5e14dc108]::diagnostic_builder::DiagnosticBuilder<'b, ()>,), Output = &'a mut rustc_errors[cd0f51f5e14dc108]::diagnostic_builder::DiagnosticBuilder<'b, ()>>> as core[54e86a843f8c5207]::ops::function::FnOnce<(&mut rustc_errors[cd0f51f5e14dc108]::diagnostic_builder::DiagnosticBuilder<()>,)>>::call_once
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:1990:9
  24:     0x7fadb613bb11 - rustc_middle[17f9f2c02a14932]::lint::struct_lint_level::struct_lint_level_impl::<rustc_error_messages[8272cb8d8bd8ce89]::DiagnosticMessage>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/lint.rs:466:9
  25:     0x7fadb612a0e4 - rustc_middle[17f9f2c02a14932]::lint::struct_lint_level::<rustc_error_messages[8272cb8d8bd8ce89]::DiagnosticMessage, <rustc_lint[d67a0c8371fb2a56]::context::EarlyContext as rustc_lint[d67a0c8371fb2a56]::context::LintContext>::lookup_with_diagnostics<rustc_error_messages[8272cb8d8bd8ce89]::MultiSpan, rustc_error_messages[8272cb8d8bd8ce89]::DiagnosticMessage, <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::check_id::{closure#0}>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/lint.rs:470:5
  26:     0x7fadb608bd12 - <rustc_lint[d67a0c8371fb2a56]::levels::LintLevelsBuilder<rustc_lint[d67a0c8371fb2a56]::levels::TopDown>>::struct_lint::<rustc_error_messages[8272cb8d8bd8ce89]::DiagnosticMessage, <rustc_lint[d67a0c8371fb2a56]::context::EarlyContext as rustc_lint[d67a0c8371fb2a56]::context::LintContext>::lookup_with_diagnostics<rustc_error_messages[8272cb8d8bd8ce89]::MultiSpan, rustc_error_messages[8272cb8d8bd8ce89]::DiagnosticMessage, <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::check_id::{closure#0}>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/levels.rs:1087:9
  27:     0x7fadb6173303 - <rustc_lint[d67a0c8371fb2a56]::context::EarlyContext as rustc_lint[d67a0c8371fb2a56]::context::LintContext>::lookup::<rustc_error_messages[8272cb8d8bd8ce89]::MultiSpan, rustc_error_messages[8272cb8d8bd8ce89]::DiagnosticMessage, <rustc_lint[d67a0c8371fb2a56]::context::EarlyContext as rustc_lint[d67a0c8371fb2a56]::context::LintContext>::lookup_with_diagnostics<rustc_error_messages[8272cb8d8bd8ce89]::MultiSpan, rustc_error_messages[8272cb8d8bd8ce89]::DiagnosticMessage, <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::check_id::{closure#0}>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/context.rs:1050:9
  28:     0x7fadb6173303 - <rustc_lint[d67a0c8371fb2a56]::context::EarlyContext as rustc_lint[d67a0c8371fb2a56]::context::LintContext>::lookup_with_diagnostics::<rustc_error_messages[8272cb8d8bd8ce89]::MultiSpan, rustc_error_messages[8272cb8d8bd8ce89]::DiagnosticMessage, <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::check_id::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/context.rs:594:9
  29:     0x7fadb6173303 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::check_id
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:43:13
  30:     0x7fadb617dd24 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::with_lint_attrs::<<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_generic_param::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:64:9
  31:     0x7fadb617dd24 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_generic_param
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:227:9
  32:     0x7fadb612295c - rustc_ast[c5034f9d31190195]::visit::walk_where_predicate::<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_ast/src/visit.rs:633:13
  33:     0x7fadb617b8cc - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_where_predicate
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:239:9
  34:     0x7fadb617b8cc - rustc_ast[c5034f9d31190195]::visit::walk_generics::<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_ast/src/visit.rs:611:5
  35:     0x7fadb617b8cc - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_generics
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:235:9
  36:     0x7fadb6127c24 - rustc_ast[c5034f9d31190195]::visit::walk_item::<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_ast/src/visit.rs:343:13
  37:     0x7fadb61799b9 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_item::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:85:13
  38:     0x7fadb61799b9 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::with_lint_attrs::<<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_item::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:67:9
  39:     0x7fadb61799b9 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_item
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:83:9
  40:     0x7fadb611daec - rustc_ast[c5034f9d31190195]::visit::walk_crate::<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_ast/src/visit.rs:263:5
  41:     0x7fadb616f219 - <&rustc_ast[c5034f9d31190195]::ast::Crate as rustc_lint[d67a0c8371fb2a56]::early::EarlyCheckNode>::check::<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:347:9
  42:     0x7fadb616f219 - rustc_lint[d67a0c8371fb2a56]::early::early_lint_node::<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass, &rustc_ast[c5034f9d31190195]::ast::Crate>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:391:66
  43:     0x7fadb616f219 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::with_lint_attrs::<rustc_lint[d67a0c8371fb2a56]::early::early_lint_node<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass, &rustc_ast[c5034f9d31190195]::ast::Crate>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:67:9
  44:     0x7fadb616f219 - rustc_lint[d67a0c8371fb2a56]::early::early_lint_node::<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass, &rustc_ast[c5034f9d31190195]::ast::Crate>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:391:5
  45:     0x7fadb616f219 - rustc_lint[d67a0c8371fb2a56]::early::check_ast_node::<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass, &rustc_ast[c5034f9d31190195]::ast::Crate>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:425:20
  46:     0x7fadb6089464 - rustc_interface[1024256b6868fde]::passes::configure_and_expand::{closure#8}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:448:9
  47:     0x7fadb6089464 - <rustc_data_structures[4bef16cb639e134e]::profiling::VerboseTimingGuard>::run::<(), rustc_interface[1024256b6868fde]::passes::configure_and_expand::{closure#8}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:727:9
  48:     0x7fadb6089464 - <rustc_session[10fc4a91c04dc8ac]::session::Session>::time::<(), rustc_interface[1024256b6868fde]::passes::configure_and_expand::{closure#8}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  49:     0x7fadb60d1393 - rustc_interface[1024256b6868fde]::passes::configure_and_expand
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:446:5
  50:     0x7fadb614d633 - <rustc_interface[1024256b6868fde]::queries::Queries>::expansion::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:182:17
  51:     0x7fadb614d633 - <rustc_interface[1024256b6868fde]::passes::boxed_resolver::BoxedResolver>::access::<<rustc_interface[1024256b6868fde]::queries::Queries>::expansion::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<rustc_ast[c5034f9d31190195]::ast::Crate, rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:134:13
  52:     0x7fadb609f5be - <rustc_interface[1024256b6868fde]::queries::Queries>::expansion::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:181:25
  53:     0x7fadb609f5be - <rustc_interface[1024256b6868fde]::queries::Query<(alloc[b3cef25e8b2bd255]::rc::Rc<rustc_ast[c5034f9d31190195]::ast::Crate>, alloc[b3cef25e8b2bd255]::rc::Rc<core[54e86a843f8c5207]::cell::RefCell<rustc_interface[1024256b6868fde]::passes::boxed_resolver::BoxedResolver>>, alloc[b3cef25e8b2bd255]::rc::Rc<rustc_lint[d67a0c8371fb2a56]::context::LintStore>)>>::compute::<<rustc_interface[1024256b6868fde]::queries::Queries>::expansion::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:38:28
  54:     0x7fadb609f5be - <rustc_interface[1024256b6868fde]::queries::Queries>::expansion
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:170:9
  55:     0x7fadb5fa3da0 - rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}::{closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:357:13
  56:     0x7fadb5fa3da0 - <rustc_interface[1024256b6868fde]::interface::Compiler>::enter::<rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}::{closure#2}, core[54e86a843f8c5207]::result::Result<core[54e86a843f8c5207]::option::Option<rustc_interface[1024256b6868fde]::queries::Linker>, rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:381:19
  57:     0x7fadb5f0e485 - rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:308:22
  58:     0x7fadb5f0e485 - rustc_interface[1024256b6868fde]::interface::run_compiler::<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/interface.rs:327:21
  59:     0x7fadb5f0e485 - rustc_span[5336b5dbd16463d6]::with_source_map::<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}::{closure#1}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_span/src/lib.rs:1009:5
  60:     0x7fadb5f9240c - rustc_interface[1024256b6868fde]::interface::run_compiler::<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/interface.rs:321:13
  61:     0x7fadb5f9240c - <scoped_tls[3f7a8f801319db86]::ScopedKey<rustc_span[5336b5dbd16463d6]::SessionGlobals>>::set::<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/.cargo/registry/src/github.com-1ecc6299db9ec823/scoped-tls-1.0.0/src/lib.rs:137:9
  62:     0x7fadb5f8d9d0 - rustc_span[5336b5dbd16463d6]::create_session_globals_then::<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_span/src/lib.rs:111:5
  63:     0x7fadb5f8d9d0 - rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals::<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/util.rs:148:38
  64:     0x7fadb5f8d9d0 - std[f82b5c5753caed5e]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:121:18
  65:     0x7fadb5f228b9 - <std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_::<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/mod.rs:551:17
  66:     0x7fadb5f228b9 - <core[54e86a843f8c5207]::panic::unwind_safe::AssertUnwindSafe<<std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}::{closure#0}> as core[54e86a843f8c5207]::ops::function::FnOnce<()>>::call_once
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panic/unwind_safe.rs:271:9
  67:     0x7fadb5f228b9 - std[f82b5c5753caed5e]::panicking::try::do_call::<core[54e86a843f8c5207]::panic::unwind_safe::AssertUnwindSafe<<std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}::{closure#0}>, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:483:40
  68:     0x7fadb5f228b9 - std[f82b5c5753caed5e]::panicking::try::<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, core[54e86a843f8c5207]::panic::unwind_safe::AssertUnwindSafe<<std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}::{closure#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:447:19
  69:     0x7fadb5f228b9 - std[f82b5c5753caed5e]::panic::catch_unwind::<core[54e86a843f8c5207]::panic::unwind_safe::AssertUnwindSafe<<std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}::{closure#0}>, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panic.rs:137:14
  70:     0x7fadb5f228b9 - <std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_::<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/mod.rs:550:30
  71:     0x7fadb5f228b9 - <<std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1} as core[54e86a843f8c5207]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/ops/function.rs:427:5
  72:     0x7fadb50a6cc8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0ec36dd54cb911df
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:1990:9
  73:     0x7fadb50a6cc8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h80ef480ea491775d
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:1990:9
  74:     0x7fadb508f505 - std::sys::unix::thread::Thread::new::thread_start::hda4ca633b3ea08e7
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys/unix/thread.rs:108:17
  75:     0x7fadb529f8fd - <unknown>
  76:     0x7fadb5321a60 - <unknown>
  77:                0x0 - <unknown>

error: internal compiler error: unexpected panic

note: 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 1.67.0-dev running on x86_64-unknown-linux-gnu

query stack during panic:
end of query stack
thread 'rustc' panicked at 'Found a `push` without a `pop`.', compiler/rustc_lint/src/levels.rs:504:9
stack backtrace:
   0:     0x7fadb50ed16e - std::backtrace_rs::backtrace::libunwind::trace::h20aef043cdda4287
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7fadb50ed16e - std::backtrace_rs::backtrace::trace_unsynchronized::h8e9d3289ebe01a24
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fadb50ed16e - std::sys_common::backtrace::_print_fmt::h416981a15f7e5658
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7fadb50ed16e - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5652316ee687b536
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fadb516bb08 - core::fmt::write::h1efe05f8990e10dd
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1209:17
   5:     0x7fadb50bcdbf - std::io::Write::write_fmt::h8360f7396a5a5a7f
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/io/mod.rs:1682:15
   6:     0x7fadb50ecf65 - std::sys_common::backtrace::_print::h600af6a870930d97
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7fadb50ecf65 - std::sys_common::backtrace::print::he1c1ef798353f4b1
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7fadb50c4674 - std::panicking::default_hook::{{closure}}::h531c4dd142c604f1
   9:     0x7fadb50c4395 - std::panicking::default_hook::h03e1b2fb6eeff4ff
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:286:9
  10:     0x7fadb5f0c922 - <alloc[b3cef25e8b2bd255]::boxed::Box<dyn for<'a, 'b> core[54e86a843f8c5207]::ops::function::Fn<(&'a core[54e86a843f8c5207]::panic::panic_info::PanicInfo<'b>,), Output = ()> + core[54e86a843f8c5207]::marker::Sync + core[54e86a843f8c5207]::marker::Send> as core[54e86a843f8c5207]::ops::function::Fn<(&core[54e86a843f8c5207]::panic::panic_info::PanicInfo,)>>::call
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2024:9
  11:     0x7fadb5f0c922 - rustc_driver[2263e2b5cfa3b26]::DEFAULT_HOOK::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:1207:13
  12:     0x7fadb50c4d57 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h28b3c3a4d1b38a94
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2024:9
  13:     0x7fadb50c4d57 - std::panicking::rust_panic_with_hook::hdc1e819d4d631134
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:692:13
  14:     0x7fadb50ed4b1 - std::panicking::begin_panic_handler::{{closure}}::hfbca247f089ae3e5
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:577:13
  15:     0x7fadb50ed2be - std::sys_common::backtrace::__rust_end_short_backtrace::h93a982a5fc679421
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:137:18
  16:     0x7fadb50c4872 - rust_begin_unwind
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:575:5
  17:     0x7fadb507aef3 - core::panicking::panic_fmt::h43c239f62329fe2a
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:65:14
  18:     0x7fadbae73c79 - <rustc_lint[d67a0c8371fb2a56]::levels::BuilderPush as core[54e86a843f8c5207]::ops::drop::Drop>::drop
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/levels.rs:504:9
  19:     0x7fadb617e1c7 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::with_lint_attrs::<<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_generic_param::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:71:5
  20:     0x7fadb617e1c7 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_generic_param
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:227:9
  21:     0x7fadb612295c - rustc_ast[c5034f9d31190195]::visit::walk_where_predicate::<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_ast/src/visit.rs:633:13
  22:     0x7fadb617b8cc - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_where_predicate
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:239:9
  23:     0x7fadb617b8cc - rustc_ast[c5034f9d31190195]::visit::walk_generics::<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_ast/src/visit.rs:611:5
  24:     0x7fadb617b8cc - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_generics
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:235:9
  25:     0x7fadb6127c24 - rustc_ast[c5034f9d31190195]::visit::walk_item::<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_ast/src/visit.rs:343:13
  26:     0x7fadb61799b9 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_item::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:85:13
  27:     0x7fadb61799b9 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::with_lint_attrs::<<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_item::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:67:9
  28:     0x7fadb61799b9 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass> as rustc_ast[c5034f9d31190195]::visit::Visitor>::visit_item
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:83:9
  29:     0x7fadb611daec - rustc_ast[c5034f9d31190195]::visit::walk_crate::<rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_ast/src/visit.rs:263:5
  30:     0x7fadb616f219 - <&rustc_ast[c5034f9d31190195]::ast::Crate as rustc_lint[d67a0c8371fb2a56]::early::EarlyCheckNode>::check::<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:347:9
  31:     0x7fadb616f219 - rustc_lint[d67a0c8371fb2a56]::early::early_lint_node::<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass, &rustc_ast[c5034f9d31190195]::ast::Crate>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:391:66
  32:     0x7fadb616f219 - <rustc_lint[d67a0c8371fb2a56]::early::EarlyContextAndPass<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass>>::with_lint_attrs::<rustc_lint[d67a0c8371fb2a56]::early::early_lint_node<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass, &rustc_ast[c5034f9d31190195]::ast::Crate>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:67:9
  33:     0x7fadb616f219 - rustc_lint[d67a0c8371fb2a56]::early::early_lint_node::<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass, &rustc_ast[c5034f9d31190195]::ast::Crate>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:391:5
  34:     0x7fadb616f219 - rustc_lint[d67a0c8371fb2a56]::early::check_ast_node::<rustc_lint[d67a0c8371fb2a56]::BuiltinCombinedEarlyLintPass, &rustc_ast[c5034f9d31190195]::ast::Crate>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_lint/src/early.rs:425:20
  35:     0x7fadb6089464 - rustc_interface[1024256b6868fde]::passes::configure_and_expand::{closure#8}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:448:9
  36:     0x7fadb6089464 - <rustc_data_structures[4bef16cb639e134e]::profiling::VerboseTimingGuard>::run::<(), rustc_interface[1024256b6868fde]::passes::configure_and_expand::{closure#8}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:727:9
  37:     0x7fadb6089464 - <rustc_session[10fc4a91c04dc8ac]::session::Session>::time::<(), rustc_interface[1024256b6868fde]::passes::configure_and_expand::{closure#8}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  38:     0x7fadb60d1393 - rustc_interface[1024256b6868fde]::passes::configure_and_expand
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:446:5
  39:     0x7fadb614d633 - <rustc_interface[1024256b6868fde]::queries::Queries>::expansion::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:182:17
  40:     0x7fadb614d633 - <rustc_interface[1024256b6868fde]::passes::boxed_resolver::BoxedResolver>::access::<<rustc_interface[1024256b6868fde]::queries::Queries>::expansion::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<rustc_ast[c5034f9d31190195]::ast::Crate, rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:134:13
  41:     0x7fadb609f5be - <rustc_interface[1024256b6868fde]::queries::Queries>::expansion::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:181:25
  42:     0x7fadb609f5be - <rustc_interface[1024256b6868fde]::queries::Query<(alloc[b3cef25e8b2bd255]::rc::Rc<rustc_ast[c5034f9d31190195]::ast::Crate>, alloc[b3cef25e8b2bd255]::rc::Rc<core[54e86a843f8c5207]::cell::RefCell<rustc_interface[1024256b6868fde]::passes::boxed_resolver::BoxedResolver>>, alloc[b3cef25e8b2bd255]::rc::Rc<rustc_lint[d67a0c8371fb2a56]::context::LintStore>)>>::compute::<<rustc_interface[1024256b6868fde]::queries::Queries>::expansion::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:38:28
  43:     0x7fadb609f5be - <rustc_interface[1024256b6868fde]::queries::Queries>::expansion
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:170:9
  44:     0x7fadb5fa3da0 - rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}::{closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:357:13
  45:     0x7fadb5fa3da0 - <rustc_interface[1024256b6868fde]::interface::Compiler>::enter::<rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}::{closure#2}, core[54e86a843f8c5207]::result::Result<core[54e86a843f8c5207]::option::Option<rustc_interface[1024256b6868fde]::queries::Linker>, rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:381:19
  46:     0x7fadb5f0e485 - rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:308:22
  47:     0x7fadb5f0e485 - rustc_interface[1024256b6868fde]::interface::run_compiler::<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/interface.rs:327:21
  48:     0x7fadb5f0e485 - rustc_span[5336b5dbd16463d6]::with_source_map::<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}::{closure#1}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_span/src/lib.rs:1009:5
  49:     0x7fadb5f9240c - rustc_interface[1024256b6868fde]::interface::run_compiler::<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/interface.rs:321:13
  50:     0x7fadb5f9240c - <scoped_tls[3f7a8f801319db86]::ScopedKey<rustc_span[5336b5dbd16463d6]::SessionGlobals>>::set::<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/.cargo/registry/src/github.com-1ecc6299db9ec823/scoped-tls-1.0.0/src/lib.rs:137:9
  51:     0x7fadb5f8d9d0 - rustc_span[5336b5dbd16463d6]::create_session_globals_then::<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_span/src/lib.rs:111:5
  52:     0x7fadb5f8d9d0 - rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals::<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/util.rs:148:38
  53:     0x7fadb5f8d9d0 - std[f82b5c5753caed5e]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:121:18
  54:     0x7fadb5f228b9 - <std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_::<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/mod.rs:551:17
  55:     0x7fadb5f228b9 - <core[54e86a843f8c5207]::panic::unwind_safe::AssertUnwindSafe<<std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}::{closure#0}> as core[54e86a843f8c5207]::ops::function::FnOnce<()>>::call_once
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panic/unwind_safe.rs:271:9
  56:     0x7fadb5f228b9 - std[f82b5c5753caed5e]::panicking::try::do_call::<core[54e86a843f8c5207]::panic::unwind_safe::AssertUnwindSafe<<std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}::{closure#0}>, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:483:40
  57:     0x7fadb5f228b9 - std[f82b5c5753caed5e]::panicking::try::<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, core[54e86a843f8c5207]::panic::unwind_safe::AssertUnwindSafe<<std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}::{closure#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:447:19
  58:     0x7fadb5f228b9 - std[f82b5c5753caed5e]::panic::catch_unwind::<core[54e86a843f8c5207]::panic::unwind_safe::AssertUnwindSafe<<std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}::{closure#0}>, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panic.rs:137:14
  59:     0x7fadb5f228b9 - <std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_::<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/mod.rs:550:30
  60:     0x7fadb5f228b9 - <<std[f82b5c5753caed5e]::thread::Builder>::spawn_unchecked_<rustc_interface[1024256b6868fde]::util::run_in_thread_pool_with_globals<rustc_interface[1024256b6868fde]::interface::run_compiler<core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>, rustc_driver[2263e2b5cfa3b26]::run_compiler::{closure#1}>::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[54e86a843f8c5207]::result::Result<(), rustc_errors[cd0f51f5e14dc108]::ErrorGuaranteed>>::{closure#1} as core[54e86a843f8c5207]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/ops/function.rs:427:5
  61:     0x7fadb50a6cc8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h0ec36dd54cb911df
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:1990:9
  62:     0x7fadb50a6cc8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h80ef480ea491775d
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:1990:9
  63:     0x7fadb508f505 - std::sys::unix::thread::Thread::new::thread_start::hda4ca633b3ea08e7
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys/unix/thread.rs:108:17
  64:     0x7fadb529f8fd - <unknown>
  65:     0x7fadb5321a60 - <unknown>
  66:                0x0 - <unknown>

error: internal compiler error: unexpected panic

note: 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 1.67.0-dev running on x86_64-unknown-linux-gnu

query stack during panic:
end of query stack
thread panicked while panicking. aborting.
[2]    1139586 IOT instruction (core dumped)   src/test/ui/deriving/issue-89188-gat-hrtb.rs -Wunused-lifetimes

[matthiaskrgr]

lol, nightly emits this:D :

warning: lifetime parameter `'s` never used
 --> src/test/ui/deriving/issue-89188-gat-hrtb.rs:6:62
  |
5 | #[derive(Clone)]
  |          - help: elide the unused lifetime
6 | struct ShimMethod4<T: Trait2 + 'static>(pub &'static dyn for<'s> Fn(&'s mut T::As));
  |                                                              ^^
  |
  = note: requested on the command line with `-W unused-lifetimes`

warning: 1 warning emitted

[matthiaskrgr]

another one from duplicate_lifetimes.rs

// Ensure that lifetime parameter names are modernized before we check for
// duplicates.

#![feature(decl_macro, rustc_attrs)]

#[rustc_macro_transparency = "semitransparent"]
macro m($a:lifetime) {
    fn g<$a, 'a>() {} //~ ERROR the name `'a` is already used for a generic parameter
}

#[rustc_macro_transparency = "transparent"]
macro n($a:lifetime) {
    fn h<$a, 'a>() {} //~ ERROR the name `'a` is already used for a generic parameter
}

m!('a);
n!('a);

fn main() {}

[matthiaskrgr]

@TaKO8Ki any updates? 🙃

[matthiaskrgr]

@rustbot claim I think I got a fix 🙂

[rustbot]

Error: Parsing assign command in comment failed: ...' claim' | error: expected end of command at >| ' I think I'...

Please file an issue on GitHub at triagebot if there's a problem with this bot, or reach out on #t-infra on Zulip.

[matthiaskrgr]

@rustbot claim