ICE: "Missing value for constant, but no error reported?" with uncomputable layout due to trivial bounds

[lukas-code]

Code

playground

#![feature(trivial_bounds)]

fn return_str()
where
    str: Sized,
{
    [(); { let _a: Option<str> = None; 0 }];
}

Meta

rustc --version --verbose:

Nightly channel

Build using the Nightly version: 1.86.0-nightly

(2025-01-04 1891c28669863bf7ed3e)

Error output

error: internal compiler error: Missing value for constant, but no error reported?
 --> src/lib.rs:7:10
  |
7 |     [(); { let _a: Option<str> = None; 0 }];
  |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Backtrace

note: delayed at compiler/rustc_trait_selection/src/traits/const_evaluatable.rs:132:44
         0: emit_diagnostic
                   at /data/code/rust3/compiler/rustc_errors/src/lib.rs:1506:41
         1: emit_diagnostic
                   at /data/code/rust3/compiler/rustc_errors/src/lib.rs:1080:9
         2: emit_producing_error_guaranteed<rustc_span::ErrorGuaranteed>
                   at /data/code/rust3/compiler/rustc_errors/src/diagnostic.rs:1323:20
         3: span_delayed_bug<rustc_span::span_encoding::Span, &str>
                   at /data/code/rust3/compiler/rustc_errors/src/lib.rs:1310:9
         4: is_const_evaluatable
                   at /data/code/rust3/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs:132:32
         5: process_obligation
                   at /data/code/rust3/compiler/rustc_trait_selection/src/traits/fulfill.rs:595:27
         6: process_obligations<rustc_trait_selection::traits::fulfill::PendingPredicateObligation, rustc_trait_selection::traits::fulfill::FulfillProcessor>
                   at /data/code/rust3/compiler/rustc_data_structures/src/obligation_forest/mod.rs:470:23
         7: select<rustc_trait_selection::traits::FulfillmentError>
                   at /data/code/rust3/compiler/rustc_trait_selection/src/traits/fulfill.rs:110:13
         8: select_where_possible<rustc_trait_selection::traits::FulfillmentError>
                   at /data/code/rust3/compiler/rustc_trait_selection/src/traits/fulfill.rs:163:9
         9: select_obligations_where_possible<rustc_hir_typeck::fn_ctxt::_impl::{impl#0}::resolve_vars_with_obligations::{closure#0}::{closure_env#0}>
                   at /data/code/rust3/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs:676:26
        10: type_inference_fallback
                   at /data/code/rust3/compiler/rustc_hir_typeck/src/fallback.rs:46:9
        11: {closure#0}
                   at /data/code/rust3/compiler/rustc_hir_typeck/src/lib.rs:184:5
        12: typeck_with_fallback
                   at /data/code/rust3/compiler/rustc_hir_typeck/src/lib.rs:105:1
        13: {closure#0}
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:283:9
        14: __rust_begin_short_backtrace<rustc_query_impl::query_impl::typeck::dynamic_query::{closure#2}::{closure_env#0}, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:548:18
        15: {closure#2}
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:622:25
        16: call_once<rustc_query_impl::query_impl::typeck::dynamic_query::{closure_env#2}, (rustc_middle::ty::context::TyCtxt, rustc_span::def_id::LocalDefId)>
                   at /data/code/rust3/library/core/src/ops/function.rs:250:5
        17: {closure#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_query_system/src/dep_graph/graph.rs:364:64
        18: {closure#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:72:9
        19: try_with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/library/std/src/thread/local.rs:308:12
        20: with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/library/std/src/thread/local.rs:272:9
        21: enter_context<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:69:5
        22: {closure#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_middle/src/dep_graph/mod.rs:33:13
        23: {closure#0}<rustc_middle::dep_graph::{impl#0}::with_deps::{closure_env#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:102:36
        24: with_context_opt<rustc_middle::ty::context::tls::with_context::{closure_env#0}<rustc_middle::dep_graph::{impl#0}::with_deps::{closure_env#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:91:18
        25: with_context<rustc_middle::dep_graph::{impl#0}::with_deps::{closure_env#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:102:5
        26: with_deps<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_middle/src/dep_graph/mod.rs:30:9
        27: {closure#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_query_system/src/dep_graph/graph.rs:364:37
        28: with_task<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>), rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>>
                   at /data/code/rust3/compiler/rustc_query_system/src/dep_graph/graph.rs:375:14
        29: {closure#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:534:13
        30: {closure#0}<rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:72:9
        31: try_with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/library/std/src/thread/local.rs:308:12
        32: with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/library/std/src/thread/local.rs:272:9
        33: enter_context<rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:69:5
        34: {closure#0}<(rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:151:13
        35: {closure#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<(rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:124:9
        36: {closure#0}<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<(rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:102:36
        37: with_context_opt<rustc_middle::ty::context::tls::with_context::{closure_env#0}<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<(rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:91:18
        38: with_context<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<(rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:102:5
        39: with_related_context<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<(rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, (rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:115:5
        40: start_query<(rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:136:9
        41: execute_job_incr<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:521:9
        42: execute_job<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:400:9
        43: try_execute_query<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:353:13
        44: {closure#0}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:834:9
        45: maybe_grow<(rustc_middle::query::erase::Erased<[u8; 8]>, core::option::Option<rustc_query_system::dep_graph::graph::DepNodeIndex>), rustc_query_system::query::plumbing::get_query_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                   at /home/lukas/.cargo/registry/src/index.crates.io-6f17d22bba15001f/stacker-0.1.17/src/lib.rs:55:9
        46: ensure_sufficient_stack<(rustc_middle::query::erase::Erased<[u8; 8]>, core::option::Option<rustc_query_system::dep_graph::graph::DepNodeIndex>), rustc_query_system::query::plumbing::get_query_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                   at /data/code/rust3/compiler/rustc_data_structures/src/stack.rs:21:5
        47: get_query_incr<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:833:36
        48: __rust_end_short_backtrace
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:578:21
        49: query_ensure<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>>
                   at /data/code/rust3/compiler/rustc_middle/src/query/plumbing.rs:159:9
        50: typeck<rustc_span::def_id::LocalDefId>
                   at /data/code/rust3/compiler/rustc_middle/src/query/plumbing.rs:194:9
        51: {closure#4}
                   at /data/code/rust3/compiler/rustc_hir_analysis/src/lib.rs:184:13
        52: {closure#0}<rustc_hir_analysis::check_crate::{closure_env#4}>
                   at /data/code/rust3/compiler/rustc_middle/src/hir/map/mod.rs:351:82
        53: {closure#0}<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>
                   at /data/code/rust3/compiler/rustc_data_structures/src/sync/parallel.rs:136:30
        54: call_once<(), rustc_data_structures::sync::parallel::par_for_each_in::{closure#0}::{closure#0}::{closure_env#0}<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>>
                   at /data/code/rust3/library/core/src/panic/unwind_safe.rs:272:9
        55: do_call<core::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures::sync::parallel::par_for_each_in::{closure#0}::{closure#0}::{closure_env#0}<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>>, ()>
                   at /data/code/rust3/library/std/src/panicking.rs:584:40
        56: try<(), core::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures::sync::parallel::par_for_each_in::{closure#0}::{closure#0}::{closure_env#0}<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>>>
                   at /data/code/rust3/library/std/src/panicking.rs:547:19
        57: catch_unwind<core::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures::sync::parallel::par_for_each_in::{closure#0}::{closure#0}::{closure_env#0}<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>>, ()>
                   at /data/code/rust3/library/std/src/panic.rs:358:14
        58: run<(), rustc_data_structures::sync::parallel::par_for_each_in::{closure#0}::{closure#1}::{closure_env#0}<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>>
                   at /data/code/rust3/compiler/rustc_data_structures/src/sync/parallel.rs:26:9
        59: {closure#1}<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>
                   at /data/code/rust3/compiler/rustc_data_structures/src/sync/parallel.rs:140:17
        60: for_each<rustc_span::def_id::LocalDefId, rustc_data_structures::sync::parallel::par_for_each_in::{closure#0}::{closure_env#1}<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>>
                   at /data/code/rust3/library/core/src/slice/iter/macros.rs:254:21
        61: {closure#0}<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>
                   at /data/code/rust3/compiler/rustc_data_structures/src/sync/parallel.rs:139:13
        62: parallel_guard<(), rustc_data_structures::sync::parallel::par_for_each_in::{closure_env#0}<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>>
                   at /data/code/rust3/compiler/rustc_data_structures/src/sync/parallel.rs:42:15
        63: par_for_each_in<&rustc_span::def_id::LocalDefId, &[rustc_span::def_id::LocalDefId], rustc_middle::hir::map::{impl#4}::par_body_owners::{closure_env#0}<rustc_hir_analysis::check_crate::{closure_env#4}>>
                   at /data/code/rust3/compiler/rustc_data_structures/src/sync/parallel.rs:132:5
        64: par_body_owners<rustc_hir_analysis::check_crate::{closure_env#4}>
                   at /data/code/rust3/compiler/rustc_middle/src/hir/map/mod.rs:351:9
        65: check_crate
                   at /data/code/rust3/compiler/rustc_hir_analysis/src/lib.rs:181:5
        66: run_required_analyses
                   at /data/code/rust3/compiler/rustc_interface/src/passes.rs:868:5
        67: analysis
                   at /data/code/rust3/compiler/rustc_interface/src/passes.rs:931:5
        68: {closure#0}
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:283:9
        69: __rust_begin_short_backtrace<rustc_query_impl::query_impl::analysis::dynamic_query::{closure#2}::{closure_env#0}, rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:548:18
        70: {closure#2}
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:622:25
        71: call_once<rustc_query_impl::query_impl::analysis::dynamic_query::{closure_env#2}, (rustc_middle::ty::context::TyCtxt, ())>
                   at /data/code/rust3/library/core/src/ops/function.rs:250:5
        72: {closure#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_query_system/src/dep_graph/graph.rs:364:64
        73: {closure#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:72:9
        74: try_with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/library/std/src/thread/local.rs:308:12
        75: with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/library/std/src/thread/local.rs:272:9
        76: enter_context<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:69:5
        77: {closure#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_middle/src/dep_graph/mod.rs:33:13
        78: {closure#0}<rustc_middle::dep_graph::{impl#0}::with_deps::{closure_env#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:102:36
        79: with_context_opt<rustc_middle::ty::context::tls::with_context::{closure_env#0}<rustc_middle::dep_graph::{impl#0}::with_deps::{closure_env#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:91:18
        80: with_context<rustc_middle::dep_graph::{impl#0}::with_deps::{closure_env#0}<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:102:5
        81: with_deps<rustc_query_system::dep_graph::graph::{impl#4}::with_task::{closure#0}::{closure_env#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>, rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_middle/src/dep_graph/mod.rs:30:9
        82: {closure#0}<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_query_system/src/dep_graph/graph.rs:364:37
        83: with_task<rustc_middle::dep_graph::DepsType, (rustc_query_impl::plumbing::QueryCtxt, rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>), (), rustc_middle::query::erase::Erased<[u8; 0]>>
                   at /data/code/rust3/compiler/rustc_query_system/src/dep_graph/graph.rs:366:14
        84: {closure#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:534:13
        85: {closure#0}<rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:72:9
        86: try_with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/library/std/src/thread/local.rs:308:12
        87: with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/library/std/src/thread/local.rs:272:9
        88: enter_context<rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:69:5
        89: {closure#0}<(rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:151:13
        90: {closure#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<(rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:124:9
        91: {closure#0}<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<(rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:102:36
        92: with_context_opt<rustc_middle::ty::context::tls::with_context::{closure_env#0}<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<(rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:91:18
        93: with_context<rustc_middle::ty::context::tls::with_related_context::{closure_env#0}<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<(rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:102:5
        94: with_related_context<rustc_query_impl::plumbing::{impl#3}::start_query::{closure_env#0}<(rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>, (rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex)>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:115:5
        95: start_query<(rustc_middle::query::erase::Erased<[u8; 0]>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job_incr::{closure_env#2}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:136:9
        96: execute_job_incr<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:521:9
        97: execute_job<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:400:9
        98: try_execute_query<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:353:13
        99: {closure#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:834:9
       100: maybe_grow<(rustc_middle::query::erase::Erased<[u8; 0]>, core::option::Option<rustc_query_system::dep_graph::graph::DepNodeIndex>), rustc_query_system::query::plumbing::get_query_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                   at /home/lukas/.cargo/registry/src/index.crates.io-6f17d22bba15001f/stacker-0.1.17/src/lib.rs:55:9
       101: ensure_sufficient_stack<(rustc_middle::query::erase::Erased<[u8; 0]>, core::option::Option<rustc_query_system::dep_graph::graph::DepNodeIndex>), rustc_query_system::query::plumbing::get_query_incr::{closure_env#0}<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>>
                   at /data/code/rust3/compiler/rustc_data_structures/src/stack.rs:21:5
       102: get_query_incr<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt>
                   at /data/code/rust3/compiler/rustc_query_system/src/query/plumbing.rs:833:36
       103: __rust_end_short_backtrace
                   at /data/code/rust3/compiler/rustc_query_impl/src/plumbing.rs:578:21
       104: query_ensure<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>>
                   at /data/code/rust3/compiler/rustc_middle/src/query/plumbing.rs:159:9
       105: analysis
                   at /data/code/rust3/compiler/rustc_middle/src/query/plumbing.rs:194:9
       106: {closure#2}
                   at /data/code/rust3/compiler/rustc_driver_impl/src/lib.rs:446:13
       107: {closure#0}<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}>
                   at /data/code/rust3/compiler/rustc_interface/src/passes.rs:813:27
       108: {closure#3}<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt::{closure#2}::{closure_env#0}<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context.rs:1556:37
       109: {closure#0}<rustc_middle::ty::context::{impl#23}::create_global_ctxt::{closure_env#3}<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt::{closure#2}::{closure_env#0}<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}>>, core::option::Option<rustc_interface::queries::Linker>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:72:9
       110: try_with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_middle::ty::context::{impl#23}::create_global_ctxt::{closure_env#3}<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt::{closure#2}::{closure_env#0}<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}>>, core::option::Option<rustc_interface::queries::Linker>>, core::option::Option<rustc_interface::queries::Linker>>
                   at /data/code/rust3/library/std/src/thread/local.rs:308:12
       111: with<core::cell::Cell<*const ()>, rustc_middle::ty::context::tls::enter_context::{closure_env#0}<rustc_middle::ty::context::{impl#23}::create_global_ctxt::{closure_env#3}<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt::{closure#2}::{closure_env#0}<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}>>, core::option::Option<rustc_interface::queries::Linker>>, core::option::Option<rustc_interface::queries::Linker>>
                   at /data/code/rust3/library/std/src/thread/local.rs:272:9
       112: enter_context<rustc_middle::ty::context::{impl#23}::create_global_ctxt::{closure_env#3}<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt::{closure#2}::{closure_env#0}<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}>>, core::option::Option<rustc_interface::queries::Linker>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context/tls.rs:69:5
       113: create_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_interface::passes::create_and_enter_global_ctxt::{closure#2}::{closure_env#0}<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}>>
                   at /data/code/rust3/compiler/rustc_middle/src/ty/context.rs:1556:9
       114: {closure#2}<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}>
                   at /data/code/rust3/compiler/rustc_interface/src/passes.rs:781:9
       115: call_once<rustc_interface::passes::create_and_enter_global_ctxt::{closure_env#2}<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}>, (&rustc_session::session::Session, rustc_middle::ty::context::CurrentGcx, &std::sync::once_lock::OnceLock<rustc_middle::ty::context::GlobalCtxt>, &rustc_data_structures::sync::worker_local::WorkerLocal<rustc_middle::arena::Arena>, &rustc_data_structures::sync::worker_local::WorkerLocal<rustc_hir::Arena>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2})>
                   at /data/code/rust3/library/core/src/ops/function.rs:250:5
       116: call_once<(&rustc_session::session::Session, rustc_middle::ty::context::CurrentGcx, &std::sync::once_lock::OnceLock<rustc_middle::ty::context::GlobalCtxt>, &rustc_data_structures::sync::worker_local::WorkerLocal<rustc_middle::arena::Arena>, &rustc_data_structures::sync::worker_local::WorkerLocal<rustc_hir::Arena>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}), dyn core::ops::function::FnOnce<(&rustc_session::session::Session, rustc_middle::ty::context::CurrentGcx, &std::sync::once_lock::OnceLock<rustc_middle::ty::context::GlobalCtxt>, &rustc_data_structures::sync::worker_local::WorkerLocal<rustc_middle::arena::Arena>, &rustc_data_structures::sync::worker_local::WorkerLocal<rustc_hir::Arena>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}), Output=core::option::Option<rustc_interface::queries::Linker>>, alloc::alloc::Global>
                   at /data/code/rust3/library/alloc/src/boxed.rs:2013:9
       117: create_and_enter_global_ctxt<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure_env#2}>
                   at /data/code/rust3/compiler/rustc_interface/src/passes.rs:821:5
       118: {closure#0}
                   at /data/code/rust3/compiler/rustc_driver_impl/src/lib.rs:417:22
       119: {closure#0}<(), rustc_driver_impl::run_compiler::{closure_env#0}>
                   at /data/code/rust3/compiler/rustc_interface/src/interface.rs:499:80
       120: call_once<(), rustc_interface::interface::run_compiler::{closure#1}::{closure_env#0}<(), rustc_driver_impl::run_compiler::{closure_env#0}>>
                   at /data/code/rust3/library/core/src/panic/unwind_safe.rs:272:9
       121: do_call<core::panic::unwind_safe::AssertUnwindSafe<rustc_interface::interface::run_compiler::{closure#1}::{closure_env#0}<(), rustc_driver_impl::run_compiler::{closure_env#0}>>, ()>
                   at /data/code/rust3/library/std/src/panicking.rs:584:40
       122: try<(), core::panic::unwind_safe::AssertUnwindSafe<rustc_interface::interface::run_compiler::{closure#1}::{closure_env#0}<(), rustc_driver_impl::run_compiler::{closure_env#0}>>>
                   at /data/code/rust3/library/std/src/panicking.rs:547:19
       123: catch_unwind<core::panic::unwind_safe::AssertUnwindSafe<rustc_interface::interface::run_compiler::{closure#1}::{closure_env#0}<(), rustc_driver_impl::run_compiler::{closure_env#0}>>, ()>
                   at /data/code/rust3/library/std/src/panic.rs:358:14
       124: {closure#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>
                   at /data/code/rust3/compiler/rustc_interface/src/interface.rs:499:23
       125: {closure#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>
                   at /data/code/rust3/compiler/rustc_interface/src/util.rs:143:13
       126: {closure#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>
                   at /data/code/rust3/compiler/rustc_interface/src/util.rs:106:21
       127: set<rustc_span::SessionGlobals, rustc_interface::util::run_in_thread_with_globals::{closure#0}::{closure#0}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>, ()>
                   at /home/lukas/.cargo/registry/src/index.crates.io-6f17d22bba15001f/scoped-tls-1.0.1/src/lib.rs:137:9
       128: create_session_globals_then<(), rustc_interface::util::run_in_thread_with_globals::{closure#0}::{closure#0}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>>
                   at /data/code/rust3/compiler/rustc_span/src/lib.rs:138:5
       129: {closure#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>
                   at /data/code/rust3/compiler/rustc_interface/src/util.rs:105:17
       130: __rust_begin_short_backtrace<rustc_interface::util::run_in_thread_with_globals::{closure#0}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>, ()>
                   at /data/code/rust3/library/std/src/sys/backtrace.rs:152:18
       131: {closure#0}<rustc_interface::util::run_in_thread_with_globals::{closure#0}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>, ()>
                   at /data/code/rust3/library/std/src/thread/mod.rs:564:17
       132: call_once<(), std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rustc_interface::util::run_in_thread_with_globals::{closure#0}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>, ()>>
                   at /data/code/rust3/library/core/src/panic/unwind_safe.rs:272:9
       133: do_call<core::panic::unwind_safe::AssertUnwindSafe<std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rustc_interface::util::run_in_thread_with_globals::{closure#0}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>, ()>>, ()>
                   at /data/code/rust3/library/std/src/panicking.rs:584:40
       134: try<(), core::panic::unwind_safe::AssertUnwindSafe<std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rustc_interface::util::run_in_thread_with_globals::{closure#0}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>, ()>>>
                   at /data/code/rust3/library/std/src/panicking.rs:547:19
       135: catch_unwind<core::panic::unwind_safe::AssertUnwindSafe<std::thread::{impl#0}::spawn_unchecked_::{closure#1}::{closure_env#0}<rustc_interface::util::run_in_thread_with_globals::{closure#0}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>, ()>>, ()>
                   at /data/code/rust3/library/std/src/panic.rs:358:14
       136: {closure#1}<rustc_interface::util::run_in_thread_with_globals::{closure#0}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>, ()>
                   at /data/code/rust3/library/std/src/thread/mod.rs:562:30
       137: call_once<std::thread::{impl#0}::spawn_unchecked_::{closure_env#1}<rustc_interface::util::run_in_thread_with_globals::{closure#0}::{closure_env#0}<rustc_interface::util::run_in_thread_pool_with_globals::{closure_env#0}<rustc_interface::interface::run_compiler::{closure_env#1}<(), rustc_driver_impl::run_compiler::{closure_env#0}>, ()>, ()>, ()>, ()>
                   at /data/code/rust3/library/core/src/ops/function.rs:250:5
       138: call_once<(), dyn core::ops::function::FnOnce<(), Output=()>, alloc::alloc::Global>
                   at /data/code/rust3/library/alloc/src/boxed.rs:2013:9
       139: call_once<(), alloc::boxed::Box<dyn core::ops::function::FnOnce<(), Output=()>, alloc::alloc::Global>, alloc::alloc::Global>
                   at /data/code/rust3/library/alloc/src/boxed.rs:2013:9
       140: thread_start
                   at /data/code/rust3/library/std/src/sys/pal/unix/thread.rs:106:17
       141: <unknown>
       142: <unknown>

Analysis

This happens, because after #129970, computing the layout of Option<str> will return LayoutError::Unknown ...

rust/compiler/rustc_ty_utils/src/layout.rs

Lines 103 to 113 in 3323bbe

	LayoutCalculatorError::UnexpectedUnsized(field) => {
	// This is sometimes not a compile error if there are trivially false where clauses.
	// See `tests/ui/layout/trivial-bounds-sized.rs` for an example.
	assert!(field.layout.is_unsized(), "invalid layout error {err:#?}");
	if !field.ty.is_sized(cx.tcx(), cx.typing_env) {
	cx.tcx().dcx().delayed_bug(format!(
	"encountered unexpected unsized field in layout of {ty:?}: {field:#?}"
	));
	}
	LayoutError::Unknown(ty)
	}

... which is turned into ErrorHandled::TooGeneric ...

rust/compiler/rustc_const_eval/src/const_eval/error.rs

Lines 143 to 145 in 3323bbe

	err_inval!(Layout(LayoutError::Unknown(_))) | err_inval!(TooGeneric) => {
	ErrorHandled::TooGeneric(span)
	}

... which is turned into EvaluateConstErr::HasGenericsOrInfers ...

rust/compiler/rustc_trait_selection/src/traits/mod.rs

Line 640 in 3323bbe

Err(ErrorHandled::TooGeneric(_)) => Err(EvaluateConstErr::HasGenericsOrInfers),

... wich will cause a delayed bug, because the const doesn't actually have generics or infers:

rust/compiler/rustc_trait_selection/src/traits/const_evaluatable.rs

Lines 126 to 140 in 3323bbe

	Err(EvaluateConstErr::HasGenericsOrInfers) => {
	let err = if uv.has_non_region_infer() {
	NotConstEvaluatable::MentionsInfer
	} else if uv.has_non_region_param() {
	NotConstEvaluatable::MentionsParam
	} else {
	let guar = infcx.dcx().span_delayed_bug(
	span,
	"Missing value for constant, but no error reported?",
	);
	NotConstEvaluatable::Error(guar)
	};
	Err(err)
	}

[FedericoBruzzone]

I was investigating this ICE.
What should be the expected behavior when the trivial_bounds feature is active?
Warning and constant evaluation to 0?

[lukas-code]

I was investigating this ICE. What should be the expected behavior when the trivial_bounds feature is active? Warning and constant evaluation to 0?

This should probably just fail to compile, similar to how it fails to compile when the layout of a local variable in a constant cannot be computed for some other reason.

For example this

fn return_str() {
    [(); { let _a: Option<[u8; usize::MAX]> = None; 0 }];
}

fails with

error[E0080]: evaluation of constant value failed
 --> src/lib.rs:4:16
  |
4 |     [(); { let _a: Option<[u8; usize::MAX]> = None; 0 }];
  |                ^^ values of the type `[u8; usize::MAX]` are too big for the target architecture

so the code from the issue could report something like this for example

error[E0080]: evaluation of constant value failed
 --> src/lib.rs:4:16
  |
4 |     [(); { let _a: Option<str> = None; 0 }];
  |                ^^ cannot determine the layout of the type `Option<str>`