ICE caused by question mark in parantheses in place of type

[FireFragment]

Code

fn main(){
    let my_var: String(String?);
}

Meta

At the time of writing this, the crash is present in both stable and nightly release channel

rustc --version --verbose:

Stable

rustc 1.65.0 (897e37553 2022-11-02)
binary: rustc
commit-hash: 897e37553bba8b42751c67658967889d11ecd120
commit-date: 2022-11-02
host: x86_64-unknown-linux-gnu
release: 1.65.0
LLVM version: 15.0.0

Nightly

rustc 1.67.0-nightly (83356b78c 2022-11-17)
binary: rustc
commit-hash: 83356b78c4ff3e7d84e977aa6143793545967301
commit-date: 2022-11-17
host: x86_64-unknown-linux-gnu
release: 1.67.0-nightly
LLVM version: 15.0.4

Error & Backtrace

   Compiling test-project v0.1.0 (/media/firefragment/DATA/Users/*****/Programs/rust/compiler-crash)
error: invalid `?` in type
 --> src/main.rs:2:30
  |
2 |     let my_var: String(String?);
  |                              ^ `?` is only allowed on expressions, not types
  |
help: if you meant to express that the type might not contain a value, use the `Option` wrapper type
  |
2 |     let my_var: String(Option<String>);
  |                        +++++++      ~

error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
 --> src/main.rs:2:17
  |
2 |     let my_var: String(String?);
  |                 ^^^^^^^^^^^^^^^ only `Fn` traits may use parentheses
  |
help: use angle brackets instead
  |
2 |     let my_var: String<String?>;
  |                       ~       ~

error: internal compiler error: compiler/rustc_typeck/src/check/fn_ctxt/_impl.rs:541:17: no type for node HirId { owner: DefId(0:3 ~ test_project[01a1]::main), local_id: 3 }: type String? (hir_id=HirId { owner: DefId(0:3 ~ test_project[01a1]::main), local_id: 3 }) in fcx 0x7f87421f0e80

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/897e37553bba8b42751c67658967889d11ecd120/compiler/rustc_errors/src/lib.rs:1462:9
stack backtrace:
   0:     0x7f8748396d40 - std::backtrace_rs::backtrace::libunwind::trace::h32eb3e08e874dd27
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7f8748396d40 - std::backtrace_rs::backtrace::trace_unsynchronized::haa3f451d27bc11a5
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f8748396d40 - std::sys_common::backtrace::_print_fmt::h5b94a01bb4289bb5
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/sys_common/backtrace.rs:66:5
   3:     0x7f8748396d40 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hb070b7fa7e3175df
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/sys_common/backtrace.rs:45:22
   4:     0x7f87483f1bfe - core::fmt::write::hd5207aebbb9a86e9
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/core/src/fmt/mod.rs:1202:17
   5:     0x7f8748387935 - std::io::Write::write_fmt::h3bd699bbd129ab8a
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/io/mod.rs:1679:15
   6:     0x7f87483999f3 - std::sys_common::backtrace::_print::h7a21be552fdf58da
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/sys_common/backtrace.rs:48:5
   7:     0x7f87483999f3 - std::sys_common::backtrace::print::ha85c41fe4dd80b13
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/sys_common/backtrace.rs:35:9
   8:     0x7f87483999f3 - std::panicking::default_hook::{{closure}}::h04cca40023d0eeca
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/panicking.rs:295:22
   9:     0x7f87483996df - std::panicking::default_hook::haa3ca8c310ed5402
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/panicking.rs:314:9
  10:     0x7f874abc72e1 - rustc_driver[cfb34b1539811fe8]::DEFAULT_HOOK::{closure#0}::{closure#0}
  11:     0x7f874839a22d - std::panicking::rust_panic_with_hook::h7b190ce1a948faac
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/panicking.rs:702:17
  12:     0x7f874bb4de51 - std[71cb4861428b0c25]::panicking::begin_panic::<rustc_errors[f77a66b68db622d5]::ExplicitBug>::{closure#0}
  13:     0x7f874bb4b966 - std[71cb4861428b0c25]::sys_common::backtrace::__rust_end_short_backtrace::<std[71cb4861428b0c25]::panicking::begin_panic<rustc_errors[f77a66b68db622d5]::ExplicitBug>::{closure#0}, !>
  14:     0x7f874bba5316 - std[71cb4861428b0c25]::panicking::begin_panic::<rustc_errors[f77a66b68db622d5]::ExplicitBug>
  15:     0x7f874bb485f6 - std[71cb4861428b0c25]::panic::panic_any::<rustc_errors[f77a66b68db622d5]::ExplicitBug>
  16:     0x7f874bb471dd - <rustc_errors[f77a66b68db622d5]::HandlerInner>::bug::<&alloc[188ed69dc0d14b4b]::string::String>
  17:     0x7f874bb46c10 - <rustc_errors[f77a66b68db622d5]::Handler>::bug::<&alloc[188ed69dc0d14b4b]::string::String>
  18:     0x7f874bc037ed - rustc_middle[a9ca1c3f9fd197cd]::ty::context::tls::with_context_opt::<rustc_middle[a9ca1c3f9fd197cd]::ty::context::tls::with_opt<rustc_middle[a9ca1c3f9fd197cd]::util::bug::opt_span_bug_fmt<rustc_span[8f00505efff112e2]::span_encoding::Span>::{closure#0}, ()>::{closure#0}, ()>
  19:     0x7f874bc06c86 - rustc_middle[a9ca1c3f9fd197cd]::util::bug::opt_span_bug_fmt::<rustc_span[8f00505efff112e2]::span_encoding::Span>
  20:     0x7f87495a4a83 - rustc_middle[a9ca1c3f9fd197cd]::util::bug::bug_fmt
  21:     0x7f87495f0158 - <rustc_typeck[4a3b2f91c49b3c3e]::check::writeback::WritebackCx as rustc_hir[f29014e7b3f8eb6c]::intravisit::Visitor>::visit_ty
  22:     0x7f87495ef6c2 - <rustc_typeck[4a3b2f91c49b3c3e]::check::writeback::WritebackCx as rustc_hir[f29014e7b3f8eb6c]::intravisit::Visitor>::visit_ty
  23:     0x7f87495ef41e - <rustc_typeck[4a3b2f91c49b3c3e]::check::writeback::WritebackCx as rustc_hir[f29014e7b3f8eb6c]::intravisit::Visitor>::visit_local
  24:     0x7f87495e88d8 - <rustc_typeck[4a3b2f91c49b3c3e]::check::writeback::WritebackCx as rustc_hir[f29014e7b3f8eb6c]::intravisit::Visitor>::visit_expr
  25:     0x7f874a1f47ac - <rustc_typeck[4a3b2f91c49b3c3e]::check::fn_ctxt::FnCtxt>::resolve_type_vars_in_body
  26:     0x7f874a1ed73d - <rustc_infer[ed26b14e1208c12f]::infer::InferCtxtBuilder>::enter::<&rustc_middle[a9ca1c3f9fd197cd]::ty::context::TypeckResults, <rustc_typeck[4a3b2f91c49b3c3e]::check::inherited::InheritedBuilder>::enter<rustc_typeck[4a3b2f91c49b3c3e]::check::typeck_with_fallback<rustc_typeck[4a3b2f91c49b3c3e]::check::typeck::{closure#0}>::{closure#1}, &rustc_middle[a9ca1c3f9fd197cd]::ty::context::TypeckResults>::{closure#0}>
  27:     0x7f874a1eac29 - rustc_typeck[4a3b2f91c49b3c3e]::check::typeck
  28:     0x7f874a4968ad - <rustc_query_system[860ed7b39cdfb46b]::dep_graph::graph::DepGraph<rustc_middle[a9ca1c3f9fd197cd]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[a9ca1c3f9fd197cd]::ty::context::TyCtxt, rustc_span[8f00505efff112e2]::def_id::LocalDefId, &rustc_middle[a9ca1c3f9fd197cd]::ty::context::TypeckResults>
  29:     0x7f874a489664 - rustc_query_system[860ed7b39cdfb46b]::query::plumbing::try_execute_query::<rustc_query_impl[d6191eea714bd250]::plumbing::QueryCtxt, rustc_query_system[860ed7b39cdfb46b]::query::caches::DefaultCache<rustc_span[8f00505efff112e2]::def_id::LocalDefId, &rustc_middle[a9ca1c3f9fd197cd]::ty::context::TypeckResults>>
  30:     0x7f874ab03cae - <rustc_query_impl[d6191eea714bd250]::Queries as rustc_middle[a9ca1c3f9fd197cd]::ty::query::QueryEngine>::typeck
  31:     0x7f874a944057 - rustc_data_structures[62ce3989ce8140ee]::sync::par_for_each_in::<&[rustc_span[8f00505efff112e2]::def_id::LocalDefId], <rustc_middle[a9ca1c3f9fd197cd]::hir::map::Map>::par_body_owners<rustc_typeck[4a3b2f91c49b3c3e]::check::typeck_item_bodies::{closure#0}>::{closure#0}>
  32:     0x7f874a943e13 - rustc_typeck[4a3b2f91c49b3c3e]::check::typeck_item_bodies
  33:     0x7f874a84e2e5 - <rustc_query_system[860ed7b39cdfb46b]::dep_graph::graph::DepGraph<rustc_middle[a9ca1c3f9fd197cd]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[a9ca1c3f9fd197cd]::ty::context::TyCtxt, (), ()>
  34:     0x7f874a84d2be - rustc_query_system[860ed7b39cdfb46b]::query::plumbing::try_execute_query::<rustc_query_impl[d6191eea714bd250]::plumbing::QueryCtxt, rustc_query_system[860ed7b39cdfb46b]::query::caches::DefaultCache<(), ()>>
  35:     0x7f874a84ccc7 - rustc_query_system[860ed7b39cdfb46b]::query::plumbing::get_query::<rustc_query_impl[d6191eea714bd250]::queries::typeck_item_bodies, rustc_query_impl[d6191eea714bd250]::plumbing::QueryCtxt>
  36:     0x7f8749f3aa9f - <rustc_session[c5946fac61f8bc34]::session::Session>::time::<(), rustc_typeck[4a3b2f91c49b3c3e]::check_crate::{closure#7}>
  37:     0x7f8749f3a65f - rustc_typeck[4a3b2f91c49b3c3e]::check_crate
  38:     0x7f8749f39c27 - rustc_interface[3182dd864eff9d7d]::passes::analysis
  39:     0x7f874a998382 - <rustc_query_system[860ed7b39cdfb46b]::dep_graph::graph::DepGraph<rustc_middle[a9ca1c3f9fd197cd]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[a9ca1c3f9fd197cd]::ty::context::TyCtxt, (), core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>>
  40:     0x7f874a997a4a - rustc_query_system[860ed7b39cdfb46b]::query::plumbing::try_execute_query::<rustc_query_impl[d6191eea714bd250]::plumbing::QueryCtxt, rustc_query_system[860ed7b39cdfb46b]::query::caches::DefaultCache<(), core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>>>
  41:     0x7f874a997517 - rustc_query_system[860ed7b39cdfb46b]::query::plumbing::get_query::<rustc_query_impl[d6191eea714bd250]::queries::analysis, rustc_query_impl[d6191eea714bd250]::plumbing::QueryCtxt>
  42:     0x7f8749a83897 - <rustc_interface[3182dd864eff9d7d]::passes::QueryContext>::enter::<rustc_driver[cfb34b1539811fe8]::run_compiler::{closure#1}::{closure#2}::{closure#3}, core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>>
  43:     0x7f8749a7728c - rustc_interface[3182dd864eff9d7d]::interface::create_compiler_and_run::<core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>, rustc_driver[cfb34b1539811fe8]::run_compiler::{closure#1}>
  44:     0x7f8749a75ac1 - <scoped_tls[e395fa6e23b19669]::ScopedKey<rustc_span[8f00505efff112e2]::SessionGlobals>>::set::<rustc_interface[3182dd864eff9d7d]::interface::run_compiler<core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>, rustc_driver[cfb34b1539811fe8]::run_compiler::{closure#1}>::{closure#0}, core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>>
  45:     0x7f8749a757af - std[71cb4861428b0c25]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[3182dd864eff9d7d]::util::run_in_thread_pool_with_globals<rustc_interface[3182dd864eff9d7d]::interface::run_compiler<core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>, rustc_driver[cfb34b1539811fe8]::run_compiler::{closure#1}>::{closure#0}, core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>>::{closure#0}, core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>>
  46:     0x7f874aa2ad70 - <<std[71cb4861428b0c25]::thread::Builder>::spawn_unchecked_<rustc_interface[3182dd864eff9d7d]::util::run_in_thread_pool_with_globals<rustc_interface[3182dd864eff9d7d]::interface::run_compiler<core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>, rustc_driver[cfb34b1539811fe8]::run_compiler::{closure#1}>::{closure#0}, core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>>::{closure#0}, core[8c92e53db3fc2eaa]::result::Result<(), rustc_errors[f77a66b68db622d5]::ErrorGuaranteed>>::{closure#1} as core[8c92e53db3fc2eaa]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  47:     0x7f87483a4003 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h49f797984e2121bf
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/alloc/src/boxed.rs:1940:9
  48:     0x7f87483a4003 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfa4f3d0ee6440e0b
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/alloc/src/boxed.rs:1940:9
  49:     0x7f87483a4003 - std::sys::unix::thread::Thread::new::thread_start::h62ca48b42d48a8fc
                               at /rustc/897e37553bba8b42751c67658967889d11ecd120/library/std/src/sys/unix/thread.rs:108:17
  50:     0x7f874824d609 - start_thread
                               at /build/glibc-SzIz7B/glibc-2.31/nptl/pthread_create.c:477:8
  51:     0x7f8748170133 - clone
                               at /build/glibc-SzIz7B/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  52:                0x0 - <unknown>

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

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

note: rustc 1.65.0 (897e37553 2022-11-02) running on x86_64-unknown-linux-gnu

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

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

query stack during panic:
#0 [typeck] type-checking `main`
#1 [typeck_item_bodies] type-checking all item bodies
#2 [analysis] running analysis passes on this crate
end of query stack
For more information about this error, try `rustc --explain E0214`.
error: could not compile `test-project` due to 2 previous errors

[jruderman]

Regression in nightly-2022-01-17 (ec4bcaa...bd3cb52)

[bombless]

it doesn't reproduce on nightly now
(still reproduce on stable and beta FYI

[jruderman]

Fixed in nightly-2022-11-26, somewhere in rollup 65a6e22

bisected with cargo-bisect-rustc v0.6.4

searched nightlies: from nightly-2022-11-17 to nightly-2022-11-28
"regressed" nightly: nightly-2022-11-26
searched commit range: b3bc6bf...8681d4c
"regressed" commit: 65a6e22

Host triple: x86_64-apple-darwin
Reproduce with:

cargo bisect-rustc --start 2022-11-17 --script ./not_outputs.sh

not_outputs.sh:

rustc src/main.rs 2>&1 | grep "internal compiler error"