rust-lang / rust-lang/rust

ICE: `Tried to get mir_promoted of a trivial const`

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@ShoyuVanilla is already working on this.

Since Feb 19, 2026.

C-bug F-type_alias_impl_trait I-ICE requires-debug-assertions T-compiler WG-trait-system-refactor
Dominant language
Rust
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Description

auto-reduced (treereduce-rust):

//@compile-flags: -Znext-solver=globally
use std::fmt::Debug;

pub type Foo = impl Debug;

#[define_opaque(Foo)]
const _FOO: Foo = 5;

original:

//@ check-pass

#![feature(type_alias_impl_trait)]

use std::fmt::Debug;

pub type Foo = impl Debug;

#[define_opaque(Foo)]
const _FOO: Foo = 5;

#[define_opaque(Foo)]
static _BAR: Foo = 22_i32;

fn main() {}

Version information

rustc 1.95.0-nightly (621d76794 2026-01-18)
binary: rustc
commit-hash: 621d76794c76fc21c0a6151fbc090120e0230a91
commit-date: 2026-01-18
host: x86_64-unknown-linux-gnu
release: 1.95.0-nightly
LLVM version: 21.1.8

Possibly related line of code:
https://github.com/rust-lang/rust/blob/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_mir_transform/src/lib.rs#L420-L432

Command:
/home/matthias/.rustup/toolchains/alt-master/bin/rustc -Znext-solver=globally

Program output 

error[E0658]: use of unstable library feature `type_alias_impl_trait`: `type_alias_impl_trait` has open design concerns
 --> /tmp/icemaker_global_tempdir.NabV3jyUZIa5/rustc_testrunner_tmpdir_reporting.BlBhs0gbvaz5/mvce.rs:5:3
  |
5 | #[define_opaque(Foo)]
  |   ^^^^^^^^^^^^^
  |
  = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
  = help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable
  = note: this compiler was built on 2026-01-18; consider upgrading it if it is out of date

error[E0658]: `impl Trait` in type aliases is unstable
 --> /tmp/icemaker_global_tempdir.NabV3jyUZIa5/rustc_testrunner_tmpdir_reporting.BlBhs0gbvaz5/mvce.rs:3:16
  |
3 | pub type Foo = impl Debug;
  |                ^^^^^^^^^^
  |
  = note: see issue #63063 <https://github.com/rust-lang/rust/issues/63063> for more information
  = help: add `#![feature(type_alias_impl_trait)]` to the crate attributes to enable
  = note: this compiler was built on 2026-01-18; consider upgrading it if it is out of date

error[E0601]: `main` function not found in crate `mvce`
 --> /tmp/icemaker_global_tempdir.NabV3jyUZIa5/rustc_testrunner_tmpdir_reporting.BlBhs0gbvaz5/mvce.rs:6:21
  |
6 | const _FOO: Foo = 5;
  |                     ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.NabV3jyUZIa5/rustc_testrunner_tmpdir_reporting.BlBhs0gbvaz5/mvce.rs`


thread 'rustc' (1047604) panicked at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_mir_transform/src/lib.rs:426:5:
Tried to get mir_promoted of a trivial const
stack backtrace:
   0:     0x7f17ccb63bf0 - std[85cd0efd8843bbc4]::backtrace_rs::backtrace::libunwind::trace
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
   1:     0x7f17ccb63bf0 - std[85cd0efd8843bbc4]::backtrace_rs::backtrace::trace_unsynchronized::<std[85cd0efd8843bbc4]::sys::backtrace::_print_fmt::{closure#1}>
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
   2:     0x7f17ccb63bf0 - std[85cd0efd8843bbc4]::sys::backtrace::_print_fmt
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/sys/backtrace.rs:74:9
   3:     0x7f17ccb63bf0 - <<std[85cd0efd8843bbc4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[b384759a19688fa6]::fmt::Display>::fmt
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/sys/backtrace.rs:44:26
   4:     0x7f17c81eb58e - <core[b384759a19688fa6]::fmt::rt::Argument>::fmt
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/core/src/fmt/rt.rs:152:76
   5:     0x7f17c81eb58e - core[b384759a19688fa6]::fmt::write
   6:     0x7f17ccb7c44c - std[85cd0efd8843bbc4]::io::default_write_fmt::<std[85cd0efd8843bbc4]::sys::stdio::unix::Stderr>
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/io/mod.rs:639:11
   7:     0x7f17ccb7c44c - <std[85cd0efd8843bbc4]::sys::stdio::unix::Stderr as std[85cd0efd8843bbc4]::io::Write>::write_fmt
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/io/mod.rs:1994:13
   8:     0x7f17ccb29586 - <std[85cd0efd8843bbc4]::sys::backtrace::BacktraceLock>::print
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/sys/backtrace.rs:47:9
   9:     0x7f17ccb29586 - std[85cd0efd8843bbc4]::panicking::default_hook::{closure#0}
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/panicking.rs:292:27
  10:     0x7f17ccb52e11 - std[85cd0efd8843bbc4]::panicking::default_hook
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/panicking.rs:319:9
  11:     0x7f17c95b8778 - <alloc[f567be85ce8074fa]::boxed::Box<dyn for<'a, 'b> core[b384759a19688fa6]::ops::function::Fn<(&'a std[85cd0efd8843bbc4]::panic::PanicHookInfo<'b>,), Output = ()> + core[b384759a19688fa6]::marker::Send + core[b384759a19688fa6]::marker::Sync> as core[b384759a19688fa6]::ops::function::Fn<(&std[85cd0efd8843bbc4]::panic::PanicHookInfo,)>>::call
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/alloc/src/boxed.rs:2220:9
  12:     0x7f17c95b8778 - rustc_driver_impl[44972498707c6af1]::install_ice_hook::{closure#1}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_driver_impl/src/lib.rs:1442:17
  13:     0x7f17c95b8778 - <alloc[f567be85ce8074fa]::boxed::Box<rustc_driver_impl[44972498707c6af1]::install_ice_hook::{closure#1}> as core[b384759a19688fa6]::ops::function::Fn<(&dyn for<'a, 'b> core[b384759a19688fa6]::ops::function::Fn<(&'a std[85cd0efd8843bbc4]::panic::PanicHookInfo<'b>,), Output = ()> + core[b384759a19688fa6]::marker::Send + core[b384759a19688fa6]::marker::Sync, &std[85cd0efd8843bbc4]::panic::PanicHookInfo)>>::call
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/alloc/src/boxed.rs:2220:9
  14:     0x7f17c95b8778 - std[85cd0efd8843bbc4]::panicking::update_hook::<alloc[f567be85ce8074fa]::boxed::Box<rustc_driver_impl[44972498707c6af1]::install_ice_hook::{closure#1}>>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/panicking.rs:235:47
  15:     0x7f17ccb5318a - <alloc[f567be85ce8074fa]::boxed::Box<dyn for<'a, 'b> core[b384759a19688fa6]::ops::function::Fn<(&'a std[85cd0efd8843bbc4]::panic::PanicHookInfo<'b>,), Output = ()> + core[b384759a19688fa6]::marker::Send + core[b384759a19688fa6]::marker::Sync> as core[b384759a19688fa6]::ops::function::Fn<(&std[85cd0efd8843bbc4]::panic::PanicHookInfo,)>>::call
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/alloc/src/boxed.rs:2220:9
  16:     0x7f17ccb5318a - std[85cd0efd8843bbc4]::panicking::panic_with_hook
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/panicking.rs:833:13
  17:     0x7f17ccb2967c - std[85cd0efd8843bbc4]::panicking::panic_handler::{closure#0}
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/panicking.rs:691:13
  18:     0x7f17ccb14c29 - std[85cd0efd8843bbc4]::sys::backtrace::__rust_end_short_backtrace::<std[85cd0efd8843bbc4]::panicking::panic_handler::{closure#0}, !>
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/sys/backtrace.rs:182:18
  19:     0x7f17ccb2b6ad - __rustc[5ec7081ce87b032f]::rust_begin_unwind
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/panicking.rs:689:5
  20:     0x7f17c81ebfbc - core[b384759a19688fa6]::panicking::panic_fmt
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/core/src/panicking.rs:80:14
  21:     0x7f17cb042319 - rustc_mir_transform[c3cb5de967354e5d]::mir_promoted
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_mir_transform/src/lib.rs:426:5
  22:     0x7f17cb89407c - rustc_query_impl[9b48450d2bbb61ea]::query_impl::mir_promoted::dynamic_query::{closure#2}::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:282:9
  23:     0x7f17cb89407c - rustc_query_impl[9b48450d2bbb61ea]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9b48450d2bbb61ea]::query_impl::mir_promoted::dynamic_query::{closure#2}::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:552:18
  24:     0x7f17cbca1c53 - rustc_query_impl[9b48450d2bbb61ea]::query_impl::mir_promoted::dynamic_query::{closure#2}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:629:25
  25:     0x7f17cbca1c53 - <rustc_query_impl[9b48450d2bbb61ea]::query_impl::mir_promoted::dynamic_query::{closure#2} as core[b384759a19688fa6]::ops::function::FnOnce<(rustc_middle[95d44b15229f0c75]::ty::context::TyCtxt, rustc_span[48a97fb2068e7f97]::def_id::LocalDefId)>>::call_once
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/core/src/ops/function.rs:250:5
  26:     0x7f17cb9b5b82 - <rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false> as rustc_query_system[8c93b95bb0d37949]::query::config::QueryConfig<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>>::compute
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/lib.rs:116:9
  27:     0x7f17cb9b5b82 - rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:497:72
  28:     0x7f17cb9b5b82 - rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context::<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:60:9
  29:     0x7f17cb9b5b82 - <std[85cd0efd8843bbc4]::thread::local::LocalKey<core[b384759a19688fa6]::cell::Cell<*const ()>>>::try_with::<rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/thread/local.rs:513:12
  30:     0x7f17cb9b5b82 - <std[85cd0efd8843bbc4]::thread::local::LocalKey<core[b384759a19688fa6]::cell::Cell<*const ()>>>::with::<rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/thread/local.rs:477:20
  31:     0x7f17cb9b5b82 - rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context::<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:57:9
  32:     0x7f17cb9b5b82 - <rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query::<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:156:13
  33:     0x7f17cb9b5b82 - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context::<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:112:9
  34:     0x7f17cb9b5b82 - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_context::<rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:90:36
  35:     0x7f17cb9b5b82 - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_context_opt::<rustc_middle[95d44b15229f0c75]::ty::context::tls::with_context<rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:79:18
  36:     0x7f17cb9b5b82 - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_context::<rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:90:5
  37:     0x7f17cb9b5b82 - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context::<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:103:5
  38:     0x7f17cb9b5b82 - <rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query::<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:142:9
  39:     0x7f17cb9b5b82 - rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:497:22
  40:     0x7f17cb9b5b82 - rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt, false>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:433:9
  41:     0x7f17cb9b5b82 - rustc_query_system[8c93b95bb0d37949]::query::plumbing::try_execute_query::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt, false>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:376:13
  42:     0x7f17cbac4f2f - rustc_query_system[8c93b95bb0d37949]::query::plumbing::get_query_non_incr::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:818:32
  43:     0x7f17cbac4f2f - stacker[cd2969ced30f4328]::maybe_grow::<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::get_query_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>
                               at /rust/deps/stacker-0.1.21/src/lib.rs:57:9
  44:     0x7f17cbac4f2f - rustc_data_structures[49d24dc8d9283e5f]::stack::ensure_sufficient_stack::<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::get_query_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_data_structures/src/stack.rs:21:5
  45:     0x7f17cbac4f2f - rustc_query_system[8c93b95bb0d37949]::query::plumbing::get_query_non_incr::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:818:5
  46:     0x7f17cbac4f2f - rustc_query_impl[9b48450d2bbb61ea]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:605:26
  47:     0x7f17c8a5a0de - rustc_middle[95d44b15229f0c75]::query::inner::query_get_at::<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/query/inner.rs:33:17
  48:     0x7f17c8a5a0de - <rustc_middle[95d44b15229f0c75]::query::plumbing::TyCtxtAt>::mir_promoted::<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/query/plumbing.rs:415:31
  49:     0x7f17c8a5a0de - <rustc_middle[95d44b15229f0c75]::ty::context::TyCtxt>::mir_promoted::<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/query/plumbing.rs:406:35
  50:     0x7f17c8a5a0de - rustc_borrowck[c71726b702da8474]::mir_borrowck
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_borrowck/src/lib.rs:122:31
  51:     0x7f17cb893d3e - rustc_query_impl[9b48450d2bbb61ea]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:282:9
  52:     0x7f17cb893d3e - rustc_query_impl[9b48450d2bbb61ea]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9b48450d2bbb61ea]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:552:18
  53:     0x7f17cbca101b - rustc_query_impl[9b48450d2bbb61ea]::query_impl::mir_borrowck::dynamic_query::{closure#2}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:629:25
  54:     0x7f17cbca101b - <rustc_query_impl[9b48450d2bbb61ea]::query_impl::mir_borrowck::dynamic_query::{closure#2} as core[b384759a19688fa6]::ops::function::FnOnce<(rustc_middle[95d44b15229f0c75]::ty::context::TyCtxt, rustc_span[48a97fb2068e7f97]::def_id::LocalDefId)>>::call_once
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/core/src/ops/function.rs:250:5
  55:     0x7f17cb9b0fa2 - <rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false> as rustc_query_system[8c93b95bb0d37949]::query::config::QueryConfig<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>>::compute
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/lib.rs:116:9
  56:     0x7f17cb9b0fa2 - rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:497:72
  57:     0x7f17cb9b0fa2 - rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context::<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:60:9
  58:     0x7f17cb9b0fa2 - <std[85cd0efd8843bbc4]::thread::local::LocalKey<core[b384759a19688fa6]::cell::Cell<*const ()>>>::try_with::<rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/thread/local.rs:513:12
  59:     0x7f17cb9b0fa2 - <std[85cd0efd8843bbc4]::thread::local::LocalKey<core[b384759a19688fa6]::cell::Cell<*const ()>>>::with::<rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/thread/local.rs:477:20
  60:     0x7f17cb9b0fa2 - rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context::<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:57:9
  61:     0x7f17cb9b0fa2 - <rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query::<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:156:13
  62:     0x7f17cb9b0fa2 - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context::<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:112:9
  63:     0x7f17cb9b0fa2 - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_context::<rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:90:36
  64:     0x7f17cb9b0fa2 - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_context_opt::<rustc_middle[95d44b15229f0c75]::ty::context::tls::with_context<rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:79:18
  65:     0x7f17cb9b0fa2 - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_context::<rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:90:5
  66:     0x7f17cb9b0fa2 - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context::<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:103:5
  67:     0x7f17cb9b0fa2 - <rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query::<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:142:9
  68:     0x7f17cb9b0fa2 - rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:497:22
  69:     0x7f17cb9b0fa2 - rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt, false>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:433:9
  70:     0x7f17cb9b0fa2 - rustc_query_system[8c93b95bb0d37949]::query::plumbing::try_execute_query::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_hir_id[71e3564572537a63]::OwnerId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt, false>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:376:13
  71:     0x7f17cbac432c - rustc_query_system[8c93b95bb0d37949]::query::plumbing::get_query_non_incr::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:818:32
  72:     0x7f17cbac432c - stacker[cd2969ced30f4328]::maybe_grow::<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::get_query_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>
                               at /rust/deps/stacker-0.1.21/src/lib.rs:57:9
  73:     0x7f17cbac432c - rustc_data_structures[49d24dc8d9283e5f]::stack::ensure_sufficient_stack::<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::get_query_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_data_structures/src/stack.rs:21:5
  74:     0x7f17cbac432c - rustc_query_system[8c93b95bb0d37949]::query::plumbing::get_query_non_incr::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:818:5
  75:     0x7f17cbac432c - rustc_query_impl[9b48450d2bbb61ea]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:605:26
  76:     0x7f17c9a9d90e - rustc_middle[95d44b15229f0c75]::query::inner::query_get_at::<rustc_data_structures[49d24dc8d9283e5f]::vec_cache::VecCache<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::dep_graph::graph::DepNodeIndex>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/query/inner.rs:33:17
  77:     0x7f17c9a9d90e - <rustc_middle[95d44b15229f0c75]::query::plumbing::TyCtxtAt>::mir_borrowck::<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/query/plumbing.rs:415:31
  78:     0x7f17c9a9d90e - <rustc_middle[95d44b15229f0c75]::ty::context::TyCtxt>::mir_borrowck::<rustc_span[48a97fb2068e7f97]::def_id::LocalDefId>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/query/plumbing.rs:406:35
  79:     0x7f17c9a9d90e - <rustc_hir_analysis[8454de905350d1]::collect::type_of::opaque::TaitConstraintLocator>::check
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs:186:57
  80:     0x7f17c9ce2c59 - <rustc_hir_analysis[8454de905350d1]::collect::type_of::opaque::TaitConstraintLocator as rustc_hir[44808572e84f5864]::intravisit::Visitor>::visit_item
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs:216:14
  81:     0x7f17c9c02ff0 - <rustc_hir_analysis[8454de905350d1]::collect::type_of::opaque::TaitConstraintLocator as rustc_hir[44808572e84f5864]::intravisit::Visitor>::visit_nested_item
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_hir/src/intravisit.rs:249:29
  82:     0x7f17c9c02ff0 - rustc_hir[44808572e84f5864]::intravisit::walk_mod::<rustc_hir_analysis[8454de905350d1]::collect::type_of::opaque::TaitConstraintLocator>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_hir/src/intravisit.rs:656:5
  83:     0x7f17c9c02ff0 - <rustc_hir_analysis[8454de905350d1]::collect::type_of::opaque::TaitConstraintLocator as rustc_hir[44808572e84f5864]::intravisit::Visitor>::visit_mod
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_hir/src/intravisit.rs:324:9
  84:     0x7f17c9c02ff0 - <rustc_middle[95d44b15229f0c75]::ty::context::TyCtxt>::hir_walk_toplevel_module::<rustc_hir_analysis[8454de905350d1]::collect::type_of::opaque::TaitConstraintLocator>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/hir/map.rs:390:17
  85:     0x7f17c9c02ff0 - rustc_hir_analysis[8454de905350d1]::collect::type_of::opaque::find_opaque_ty_constraints_for_tait
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs:82:9
  86:     0x7f17c9bd9514 - rustc_hir_analysis[8454de905350d1]::collect::type_of::type_of_opaque
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_hir_analysis/src/collect/type_of.rs:259:17
  87:     0x7f17cb897eae - rustc_query_impl[9b48450d2bbb61ea]::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:282:9
  88:     0x7f17cb897eae - rustc_query_impl[9b48450d2bbb61ea]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[9b48450d2bbb61ea]::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:552:18
  89:     0x7f17cbcb0ad1 - rustc_query_impl[9b48450d2bbb61ea]::query_impl::type_of_opaque::dynamic_query::{closure#2}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:629:25
  90:     0x7f17cbcb0ad1 - <rustc_query_impl[9b48450d2bbb61ea]::query_impl::type_of_opaque::dynamic_query::{closure#2} as core[b384759a19688fa6]::ops::function::FnOnce<(rustc_middle[95d44b15229f0c75]::ty::context::TyCtxt, rustc_span[48a97fb2068e7f97]::def_id::DefId)>>::call_once
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/core/src/ops/function.rs:250:5
  91:     0x7f17cb90e98b - <rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_query_system[8c93b95bb0d37949]::query::caches::DefIdCache<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>, false, false, false> as rustc_query_system[8c93b95bb0d37949]::query::config::QueryConfig<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>>::compute
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/lib.rs:116:9
  92:     0x7f17cb90e98b - rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr::<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_query_system[8c93b95bb0d37949]::query::caches::DefIdCache<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_system/src/query/plumbing.rs:497:72
  93:     0x7f17cb90e98b - rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context::<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_query_system[8c93b95bb0d37949]::query::caches::DefIdCache<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:60:9
  94:     0x7f17cb90e98b - <std[85cd0efd8843bbc4]::thread::local::LocalKey<core[b384759a19688fa6]::cell::Cell<*const ()>>>::try_with::<rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_query_system[8c93b95bb0d37949]::query::caches::DefIdCache<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/thread/local.rs:513:12
  95:     0x7f17cb90e98b - <std[85cd0efd8843bbc4]::thread::local::LocalKey<core[b384759a19688fa6]::cell::Cell<*const ()>>>::with::<rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_query_system[8c93b95bb0d37949]::query::caches::DefIdCache<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/thread/local.rs:477:20
  96:     0x7f17cb90e98b - rustc_middle[95d44b15229f0c75]::ty::context::tls::enter_context::<rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_query_system[8c93b95bb0d37949]::query::caches::DefIdCache<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:57:9
  97:     0x7f17cb90e98b - <rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query::<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_query_system[8c93b95bb0d37949]::query::caches::DefIdCache<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_query_impl/src/plumbing.rs:156:13
  98:     0x7f17cb90e98b - rustc_middle[95d44b15229f0c75]::ty::context::tls::with_related_context::<<rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt as rustc_query_system[8c93b95bb0d37949]::query::QueryContext>::start_query<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[8c93b95bb0d37949]::query::plumbing::execute_job_non_incr<rustc_query_impl[9b48450d2bbb61ea]::DynamicConfig<rustc_query_system[8c93b95bb0d37949]::query::caches::DefIdCache<rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[9b48450d2bbb61ea]::plumbing::QueryCtxt>::{closure#0}>::{closure#0}, rustc_middle[95d44b15229f0c75]::query::erase::Erased<[u8; 8usize]>>::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/compiler/rustc_middle/src/ty/context/tls.rs:112:9
 

<snip>



 278:     0x7f17c95c6c73 - std[85cd0efd8843bbc4]::thread::lifecycle::spawn_unchecked::<rustc_interface[e546d7f872b6e292]::util::run_in_thread_with_globals<rustc_interface[e546d7f872b6e292]::util::run_in_thread_pool_with_globals<rustc_interface[e546d7f872b6e292]::interface::run_compiler<(), rustc_driver_impl[44972498707c6af1]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1}::{closure#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/thread/lifecycle.rs:91:13
 279:     0x7f17c95c6c73 - <core[b384759a19688fa6]::panic::unwind_safe::AssertUnwindSafe<std[85cd0efd8843bbc4]::thread::lifecycle::spawn_unchecked<rustc_interface[e546d7f872b6e292]::util::run_in_thread_with_globals<rustc_interface[e546d7f872b6e292]::util::run_in_thread_pool_with_globals<rustc_interface[e546d7f872b6e292]::interface::run_compiler<(), rustc_driver_impl[44972498707c6af1]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1}::{closure#0}> as core[b384759a19688fa6]::ops::function::FnOnce<()>>::call_once
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/core/src/panic/unwind_safe.rs:274:9
 280:     0x7f17c95c6c73 - std[85cd0efd8843bbc4]::panicking::catch_unwind::do_call::<core[b384759a19688fa6]::panic::unwind_safe::AssertUnwindSafe<std[85cd0efd8843bbc4]::thread::lifecycle::spawn_unchecked<rustc_interface[e546d7f872b6e292]::util::run_in_thread_with_globals<rustc_interface[e546d7f872b6e292]::util::run_in_thread_pool_with_globals<rustc_interface[e546d7f872b6e292]::interface::run_compiler<(), rustc_driver_impl[44972498707c6af1]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1}::{closure#0}>, ()>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/panicking.rs:581:40
 281:     0x7f17c95c6c73 - std[85cd0efd8843bbc4]::panicking::catch_unwind::<(), core[b384759a19688fa6]::panic::unwind_safe::AssertUnwindSafe<std[85cd0efd8843bbc4]::thread::lifecycle::spawn_unchecked<rustc_interface[e546d7f872b6e292]::util::run_in_thread_with_globals<rustc_interface[e546d7f872b6e292]::util::run_in_thread_pool_with_globals<rustc_interface[e546d7f872b6e292]::interface::run_compiler<(), rustc_driver_impl[44972498707c6af1]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1}::{closure#0}>>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/panicking.rs:544:19
 282:     0x7f17c95c6c73 - std[85cd0efd8843bbc4]::panic::catch_unwind::<core[b384759a19688fa6]::panic::unwind_safe::AssertUnwindSafe<std[85cd0efd8843bbc4]::thread::lifecycle::spawn_unchecked<rustc_interface[e546d7f872b6e292]::util::run_in_thread_with_globals<rustc_interface[e546d7f872b6e292]::util::run_in_thread_pool_with_globals<rustc_interface[e546d7f872b6e292]::interface::run_compiler<(), rustc_driver_impl[44972498707c6af1]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1}::{closure#0}>, ()>
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/panic.rs:359:14
 283:     0x7f17c95c6c73 - std[85cd0efd8843bbc4]::thread::lifecycle::spawn_unchecked::<rustc_interface[e546d7f872b6e292]::util::run_in_thread_with_globals<rustc_interface[e546d7f872b6e292]::util::run_in_thread_pool_with_globals<rustc_interface[e546d7f872b6e292]::interface::run_compiler<(), rustc_driver_impl[44972498707c6af1]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/thread/lifecycle.rs:89:26
 284:     0x7f17c95c6c73 - <std[85cd0efd8843bbc4]::thread::lifecycle::spawn_unchecked<rustc_interface[e546d7f872b6e292]::util::run_in_thread_with_globals<rustc_interface[e546d7f872b6e292]::util::run_in_thread_pool_with_globals<rustc_interface[e546d7f872b6e292]::interface::run_compiler<(), rustc_driver_impl[44972498707c6af1]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[b384759a19688fa6]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
                               at /rustc-dev/621d76794c76fc21c0a6151fbc090120e0230a91/library/core/src/ops/function.rs:250:5
 285:     0x7f17ccb60a1f - <alloc[f567be85ce8074fa]::boxed::Box<dyn core[b384759a19688fa6]::ops::function::FnOnce<(), Output = ()> + core[b384759a19688fa6]::marker::Send> as core[b384759a19688fa6]::ops::function::FnOnce<()>>::call_once
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/alloc/src/boxed.rs:2206:9
 286:     0x7f17ccb60a1f - <std[85cd0efd8843bbc4]::sys::thread::unix::Thread>::new::thread_start
                               at /rustc/621d76794c76fc21c0a6151fbc090120e0230a91/library/std/src/sys/thread/unix.rs:127:17
 287:     0x7f17c669698b - <unknown>
 288:     0x7f17c671a9cc - <unknown>
 289:                0x0 - <unknown>

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

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

note: please make sure that you have updated to the latest nightly

note: rustc 1.95.0-nightly (621d76794 2026-01-18) running on x86_64-unknown-linux-gnu

note: compiler flags: -Z next-solver=globally -Z dump-mir-dir=dir

query stack during panic:
#0 [mir_promoted] promoting constants in MIR for `_FOO`
#1 [mir_borrowck] borrow-checking `_FOO`
#2 [type_of_opaque] computing type of opaque `Foo::{opaque#0}`
#3 [type_of] computing type of `Foo::{opaque#0}`
#4 [check_well_formed] checking that `Foo::{opaque#0}` is well-formed
#5 [check_type_wf] checking that types are well-formed
#6 [analysis] running analysis passes on crate `mvce`
end of query stack
error: aborting due to 3 previous errors

Some errors have detailed explanations: E0601, E0658.
For more information about an error, try `rustc --explain E0601`.

@rustbot label +F-type_alias_impl_trait +WG-trait-system-refactor

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