Closed
Description
auto-reduced (treereduce-rust):
pub trait Foo {
async fn baz() -> i32 {
|| if true { 1 } else { 2 } * 3;
}
}
original:
// edition:2021
#![allow(incomplete_features)]
pub trait Foo {
// @has async_trait_sig/trait.Foo.html '//h4[@class="code-header"]' "async fn bar() -> i32"
async fn bar() -> i32;
// @has async_trait_sig/trait.Foo.html '//h4[@class="code-header"]' "async fn baz() -> i32"
async fn baz() -> i32 {
// Test that lambdas behave as unary expressions with block-like expressions
-if true { 1 } else { 2 } * 3;
|| if true { 1 } else { 2 } * 3;
//~ ERROR use of undeclared lifetime name `'foo`
// if true { 1 } else { 2 } * 3
}
}Version information
rustc 1.76.0-nightly (e223c4102 2023-12-16)
binary: rustc
commit-hash: e223c41028def5123ffd2a4a51a9109b1aae2c2e
commit-date: 2023-12-16
host: x86_64-unknown-linux-gnu
release: 1.76.0-nightly
LLVM version: 17.0.6
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
error[E0670]: `async fn` is not permitted in Rust 2015
--> /tmp/icemaker_global_tempdir.Jm5p9C7j0cjw/rustc_testrunner_tmpdir_reporting.L3z3qI7ds0DB/mvce.rs:2:5
|
2 | async fn baz() -> i32 {
| ^^^^^ to use `async fn`, switch to Rust 2018 or later
|
= help: pass `--edition 2021` to `rustc`
= note: for more on editions, read https://doc.rust-lang.org/edition-guide
error[E0601]: `main` function not found in crate `mvce`
--> /tmp/icemaker_global_tempdir.Jm5p9C7j0cjw/rustc_testrunner_tmpdir_reporting.L3z3qI7ds0DB/mvce.rs:5:2
|
5 | }
| ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.Jm5p9C7j0cjw/rustc_testrunner_tmpdir_reporting.L3z3qI7ds0DB/mvce.rs`
error[E0308]: mismatched types
--> /tmp/icemaker_global_tempdir.Jm5p9C7j0cjw/rustc_testrunner_tmpdir_reporting.L3z3qI7ds0DB/mvce.rs:2:27
|
2 | async fn baz() -> i32 {
| ___________________________^
3 | | || if true { 1 } else { 2 } * 3;
4 | | }
| |_____^ expected `i32`, found `()`
error: internal compiler error: compiler/rustc_mir_build/src/build/mod.rs:654:17: expected type of closure to be a closure
thread 'rustc' panicked at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/compiler/rustc_errors/src/lib.rs:1119:75:
Box<dyn Any>
stack backtrace:
0: 0x7f2c26b8b10c - std::backtrace_rs::backtrace::libunwind::trace::h40c4f9403e9106ce
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
1: 0x7f2c26b8b10c - std::backtrace_rs::backtrace::trace_unsynchronized::h034afacd87380e54
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f2c26b8b10c - std::sys_common::backtrace::_print_fmt::h964653ebee1cb7e4
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/std/src/sys_common/backtrace.rs:68:5
3: 0x7f2c26b8b10c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h74a6e824a409ebfb
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7f2c26bde6c0 - core::fmt::rt::Argument::fmt::hfbfcbe20f1de6b4b
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/core/src/fmt/rt.rs:142:9
5: 0x7f2c26bde6c0 - core::fmt::write::h563ec15019c84174
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/core/src/fmt/mod.rs:1120:17
6: 0x7f2c26b7efff - std::io::Write::write_fmt::ha8bf6bb3a1d25673
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/std/src/io/mod.rs:1810:15
7: 0x7f2c26b8aef4 - std::sys_common::backtrace::_print::h590ad40e00b03203
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7f2c26b8aef4 - std::sys_common::backtrace::print::hbde661fab8b9de44
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7f2c26b8dbf7 - std::panicking::default_hook::{{closure}}::h276d0740e1e4dd9a
10: 0x7f2c26b8d95f - std::panicking::default_hook::h773a22917e51f7ee
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/std/src/panicking.rs:292:9
11: 0x7f2c2995e5a0 - std[2bf2c5e6f42c1d81]::panicking::update_hook::<alloc[3e1464f82126f796]::boxed::Box<rustc_driver_impl[d5b6de9f3c2a441e]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7f2c26b8e338 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h55116213a5c0c206
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/alloc/src/boxed.rs:2029:9
13: 0x7f2c26b8e338 - std::panicking::rust_panic_with_hook::h67d1cc71ec8072bf
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/std/src/panicking.rs:783:13
14: 0x7f2c29996a84 - std[2bf2c5e6f42c1d81]::panicking::begin_panic::<rustc_errors[5f2b31ed444b107e]::ExplicitBug>::{closure#0}
15: 0x7f2c29992f16 - std[2bf2c5e6f42c1d81]::sys_common::backtrace::__rust_end_short_backtrace::<std[2bf2c5e6f42c1d81]::panicking::begin_panic<rustc_errors[5f2b31ed444b107e]::ExplicitBug>::{closure#0}, !>
16: 0x7f2c2998e2a6 - std[2bf2c5e6f42c1d81]::panicking::begin_panic::<rustc_errors[5f2b31ed444b107e]::ExplicitBug>
17: 0x7f2c299a1d58 - <rustc_errors[5f2b31ed444b107e]::diagnostic_builder::Bug as rustc_errors[5f2b31ed444b107e]::diagnostic_builder::EmissionGuarantee>::diagnostic_builder_emit_producing_guarantee
18: 0x7f2c29d86185 - <rustc_errors[5f2b31ed444b107e]::Handler>::bug::<alloc[3e1464f82126f796]::string::String>
19: 0x7f2c29e205fd - rustc_middle[2c55df33fbcd02e8]::util::bug::opt_span_bug_fmt::<rustc_span[d66e1cc682400b55]::span_encoding::Span>::{closure#0}
20: 0x7f2c29e09bea - rustc_middle[2c55df33fbcd02e8]::ty::context::tls::with_opt::<rustc_middle[2c55df33fbcd02e8]::util::bug::opt_span_bug_fmt<rustc_span[d66e1cc682400b55]::span_encoding::Span>::{closure#0}, !>::{closure#0}
21: 0x7f2c29e09a88 - rustc_middle[2c55df33fbcd02e8]::ty::context::tls::with_context_opt::<rustc_middle[2c55df33fbcd02e8]::ty::context::tls::with_opt<rustc_middle[2c55df33fbcd02e8]::util::bug::opt_span_bug_fmt<rustc_span[d66e1cc682400b55]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
22: 0x7f2c27d638a0 - rustc_middle[2c55df33fbcd02e8]::util::bug::bug_fmt
23: 0x7f2c29e7857e - rustc_mir_build[f2854bfd4333bdb3]::build::construct_error
24: 0x7f2c2aeff52a - rustc_mir_build[f2854bfd4333bdb3]::build::mir_built
25: 0x7f2c2aefde2d - rustc_query_impl[982ae447665c173c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[982ae447665c173c]::query_impl::mir_built::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>
26: 0x7f2c2ae7d503 - rustc_query_system[6cc3be0e52029f3e]::query::plumbing::try_execute_query::<rustc_query_impl[982ae447665c173c]::DynamicConfig<rustc_query_system[6cc3be0e52029f3e]::query::caches::VecCache<rustc_span[d66e1cc682400b55]::def_id::LocalDefId, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[982ae447665c173c]::plumbing::QueryCtxt, false>
27: 0x7f2c2ae7ce90 - rustc_query_impl[982ae447665c173c]::query_impl::mir_built::get_query_non_incr::__rust_end_short_backtrace
28: 0x7f2c280f704e - rustc_mir_transform[216b0e542727acb1]::check_unsafety::unsafety_check_result
29: 0x7f2c2ae7d287 - rustc_query_impl[982ae447665c173c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[982ae447665c173c]::query_impl::unsafety_check_result::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>
30: 0x7f2c2ae7d503 - rustc_query_system[6cc3be0e52029f3e]::query::plumbing::try_execute_query::<rustc_query_impl[982ae447665c173c]::DynamicConfig<rustc_query_system[6cc3be0e52029f3e]::query::caches::VecCache<rustc_span[d66e1cc682400b55]::def_id::LocalDefId, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[982ae447665c173c]::plumbing::QueryCtxt, false>
31: 0x7f2c2ae7d010 - rustc_query_impl[982ae447665c173c]::query_impl::unsafety_check_result::get_query_non_incr::__rust_end_short_backtrace
32: 0x7f2c2ae7e4f6 - rustc_mir_transform[216b0e542727acb1]::mir_const
33: 0x7f2c2ae7e421 - rustc_query_impl[982ae447665c173c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[982ae447665c173c]::query_impl::mir_const::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>
34: 0x7f2c2ae7d503 - rustc_query_system[6cc3be0e52029f3e]::query::plumbing::try_execute_query::<rustc_query_impl[982ae447665c173c]::DynamicConfig<rustc_query_system[6cc3be0e52029f3e]::query::caches::VecCache<rustc_span[d66e1cc682400b55]::def_id::LocalDefId, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[982ae447665c173c]::plumbing::QueryCtxt, false>
35: 0x7f2c2ae7cf50 - rustc_query_impl[982ae447665c173c]::query_impl::mir_const::get_query_non_incr::__rust_end_short_backtrace
36: 0x7f2c28ecd4df - rustc_mir_transform[216b0e542727acb1]::mir_promoted
37: 0x7f2c2b11e8d2 - rustc_query_impl[982ae447665c173c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[982ae447665c173c]::query_impl::mir_promoted::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 16usize]>>
38: 0x7f2c2b11eb9c - rustc_query_system[6cc3be0e52029f3e]::query::plumbing::try_execute_query::<rustc_query_impl[982ae447665c173c]::DynamicConfig<rustc_query_system[6cc3be0e52029f3e]::query::caches::VecCache<rustc_span[d66e1cc682400b55]::def_id::LocalDefId, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[982ae447665c173c]::plumbing::QueryCtxt, false>
39: 0x7f2c2b11e7d3 - rustc_query_impl[982ae447665c173c]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace
40: 0x7f2c2ba95a8d - rustc_borrowck[9b01be6d2fbb8954]::mir_borrowck
41: 0x7f2c2ba959d7 - rustc_query_impl[982ae447665c173c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[982ae447665c173c]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>
42: 0x7f2c2ae7d503 - rustc_query_system[6cc3be0e52029f3e]::query::plumbing::try_execute_query::<rustc_query_impl[982ae447665c173c]::DynamicConfig<rustc_query_system[6cc3be0e52029f3e]::query::caches::VecCache<rustc_span[d66e1cc682400b55]::def_id::LocalDefId, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[982ae447665c173c]::plumbing::QueryCtxt, false>
43: 0x7f2c2ae7d0d0 - rustc_query_impl[982ae447665c173c]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
44: 0x7f2c2bbe8c71 - <rustc_hir_analysis[70e50c671a2d212]::collect::type_of::opaque::RpitConstraintChecker>::check
45: 0x7f2c291da565 - <rustc_hir_analysis[70e50c671a2d212]::collect::type_of::opaque::RpitConstraintChecker as rustc_hir[390f8e9e93ef8f24]::intravisit::Visitor>::visit_expr
46: 0x7f2c2b6bdbe2 - <rustc_hir_analysis[70e50c671a2d212]::collect::type_of::opaque::RpitConstraintChecker as rustc_hir[390f8e9e93ef8f24]::intravisit::Visitor>::visit_block
47: 0x7f2c2b6bd398 - rustc_hir_analysis[70e50c671a2d212]::collect::type_of::type_of_opaque
48: 0x7f2c2b6bc973 - rustc_query_impl[982ae447665c173c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[982ae447665c173c]::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>
49: 0x7f2c2ac89d14 - rustc_query_system[6cc3be0e52029f3e]::query::plumbing::try_execute_query::<rustc_query_impl[982ae447665c173c]::DynamicConfig<rustc_query_system[6cc3be0e52029f3e]::query::caches::DefaultCache<rustc_span[d66e1cc682400b55]::def_id::DefId, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[982ae447665c173c]::plumbing::QueryCtxt, false>
50: 0x7f2c2bc3735e - rustc_query_impl[982ae447665c173c]::query_impl::type_of_opaque::get_query_non_incr::__rust_end_short_backtrace
51: 0x7f2c2addaf04 - rustc_middle[2c55df33fbcd02e8]::query::plumbing::query_get_at::<rustc_query_system[6cc3be0e52029f3e]::query::caches::DefaultCache<rustc_span[d66e1cc682400b55]::def_id::DefId, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>>
52: 0x7f2c29009b81 - rustc_hir_analysis[70e50c671a2d212]::collect::type_of::type_of
53: 0x7f2c2ac8aea6 - rustc_query_impl[982ae447665c173c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[982ae447665c173c]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>
54: 0x7f2c2ac89d14 - rustc_query_system[6cc3be0e52029f3e]::query::plumbing::try_execute_query::<rustc_query_impl[982ae447665c173c]::DynamicConfig<rustc_query_system[6cc3be0e52029f3e]::query::caches::DefaultCache<rustc_span[d66e1cc682400b55]::def_id::DefId, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[982ae447665c173c]::plumbing::QueryCtxt, false>
55: 0x7f2c2ac898db - rustc_query_impl[982ae447665c173c]::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
56: 0x7f2c2addaf04 - rustc_middle[2c55df33fbcd02e8]::query::plumbing::query_get_at::<rustc_query_system[6cc3be0e52029f3e]::query::caches::DefaultCache<rustc_span[d66e1cc682400b55]::def_id::DefId, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 8usize]>>>
57: 0x7f2c2b8c09c6 - rustc_hir_analysis[70e50c671a2d212]::check::check::check_mod_item_types
58: 0x7f2c2b8becf3 - rustc_query_impl[982ae447665c173c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[982ae447665c173c]::query_impl::check_mod_item_types::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 0usize]>>
59: 0x7f2c2b7d667b - rustc_query_system[6cc3be0e52029f3e]::query::plumbing::try_execute_query::<rustc_query_impl[982ae447665c173c]::DynamicConfig<rustc_query_system[6cc3be0e52029f3e]::query::caches::DefaultCache<rustc_span[d66e1cc682400b55]::def_id::LocalModDefId, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[982ae447665c173c]::plumbing::QueryCtxt, false>
60: 0x7f2c2b7d6057 - rustc_query_impl[982ae447665c173c]::query_impl::check_mod_item_types::get_query_non_incr::__rust_end_short_backtrace
61: 0x7f2c2b661763 - rustc_hir_analysis[70e50c671a2d212]::check_crate
62: 0x7f2c2b66a697 - rustc_interface[956eab51901a62c2]::passes::analysis
63: 0x7f2c2b66a2dd - rustc_query_impl[982ae447665c173c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[982ae447665c173c]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 1usize]>>
64: 0x7f2c2bb79eb2 - rustc_query_system[6cc3be0e52029f3e]::query::plumbing::try_execute_query::<rustc_query_impl[982ae447665c173c]::DynamicConfig<rustc_query_system[6cc3be0e52029f3e]::query::caches::SingleCache<rustc_middle[2c55df33fbcd02e8]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[982ae447665c173c]::plumbing::QueryCtxt, false>
65: 0x7f2c2bb79cb9 - rustc_query_impl[982ae447665c173c]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
66: 0x7f2c2bc2f563 - rustc_interface[956eab51901a62c2]::interface::run_compiler::<core[411d08b4a4626c2f]::result::Result<(), rustc_span[d66e1cc682400b55]::ErrorGuaranteed>, rustc_driver_impl[d5b6de9f3c2a441e]::run_compiler::{closure#0}>::{closure#0}
67: 0x7f2c2bbac20a - std[2bf2c5e6f42c1d81]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[956eab51901a62c2]::util::run_in_thread_with_globals<rustc_interface[956eab51901a62c2]::util::run_in_thread_pool_with_globals<rustc_interface[956eab51901a62c2]::interface::run_compiler<core[411d08b4a4626c2f]::result::Result<(), rustc_span[d66e1cc682400b55]::ErrorGuaranteed>, rustc_driver_impl[d5b6de9f3c2a441e]::run_compiler::{closure#0}>::{closure#0}, core[411d08b4a4626c2f]::result::Result<(), rustc_span[d66e1cc682400b55]::ErrorGuaranteed>>::{closure#0}, core[411d08b4a4626c2f]::result::Result<(), rustc_span[d66e1cc682400b55]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[411d08b4a4626c2f]::result::Result<(), rustc_span[d66e1cc682400b55]::ErrorGuaranteed>>
68: 0x7f2c2bbac033 - <<std[2bf2c5e6f42c1d81]::thread::Builder>::spawn_unchecked_<rustc_interface[956eab51901a62c2]::util::run_in_thread_with_globals<rustc_interface[956eab51901a62c2]::util::run_in_thread_pool_with_globals<rustc_interface[956eab51901a62c2]::interface::run_compiler<core[411d08b4a4626c2f]::result::Result<(), rustc_span[d66e1cc682400b55]::ErrorGuaranteed>, rustc_driver_impl[d5b6de9f3c2a441e]::run_compiler::{closure#0}>::{closure#0}, core[411d08b4a4626c2f]::result::Result<(), rustc_span[d66e1cc682400b55]::ErrorGuaranteed>>::{closure#0}, core[411d08b4a4626c2f]::result::Result<(), rustc_span[d66e1cc682400b55]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[411d08b4a4626c2f]::result::Result<(), rustc_span[d66e1cc682400b55]::ErrorGuaranteed>>::{closure#1} as core[411d08b4a4626c2f]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
69: 0x7f2c26b981c5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hdee8ccc00ea3745f
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/alloc/src/boxed.rs:2015:9
70: 0x7f2c26b981c5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h66e7bd21c6afa306
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/alloc/src/boxed.rs:2015:9
71: 0x7f2c26b981c5 - std::sys::unix::thread::Thread::new::thread_start::he285325b4cca362f
at /rustc/e223c41028def5123ffd2a4a51a9109b1aae2c2e/library/std/src/sys/unix/thread.rs:108:17
72: 0x7f2c269849eb - <unknown>
73: 0x7f2c26a087cc - <unknown>
74: 0x0 - <unknown>
note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: rustc 1.76.0-nightly (e223c4102 2023-12-16) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [mir_built] building MIR for `Foo::baz::{closure#0}::{closure#0}`
#1 [unsafety_check_result] unsafety-checking `Foo::baz::{closure#0}::{closure#0}`
#2 [mir_const] preparing `Foo::baz::{closure#0}::{closure#0}` for borrow checking
#3 [mir_promoted] promoting constants in MIR for `Foo::baz::{closure#0}::{closure#0}`
#4 [mir_borrowck] borrow-checking `Foo::baz::{closure#0}::{closure#0}`
#5 [type_of_opaque] computing type of opaque `Foo::baz::{opaque#0}`
#6 [type_of] computing type of `Foo::baz::{opaque#0}`
#7 [check_mod_item_types] checking item types in top-level module
#8 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0308, E0601, E0670.
For more information about an error, try `rustc --explain E0308`.
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