Closed
Description
Code
rustc treereduce.out --crate-type lib -Cdebuginfo=2
#![recursion_limit = "10"]
macro_rules! link {
($outer:ident, $inner:ident) => {
struct $outer($inner);
impl $outer {
fn new() -> $outer {
$outer($inner::new())
}
}
impl std::ops::Deref for $outer {
type Target = $inner;
fn deref(&self) -> &$inner {
&self.0
}
}
};
}
struct Bottom;
impl Bottom {
fn new() -> Bottom {
Bottom
}
}
link!(A, B);
link!(B, C);
link!(C, D);
link!(D, E);
link!(E, F);
link!(F, G);
link!(G, H);
link!(H, I);
link!(I, J);
link!(J, K);
link!(K, Bottom);Meta
rustc --version --verbose:
rustc 1.73.0-nightly (8131b9774 2023-08-02)
binary: rustc
commit-hash: 8131b9774ebcb6c162fcac71545a13543ec369e7
commit-date: 2023-08-02
host: x86_64-unknown-linux-gnu
release: 1.73.0-nightly
LLVM version: 16.0.5
Error output
warning: associated function `new` is never used
--> treereduce.out:22:8
|
21 | impl Bottom {
| ----------- associated function in this implementation
22 | fn new() -> Bottom {
| ^^^
|
= note: `#[warn(dead_code)]` on by default
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
28 | link!(A, B);
| ----------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
29 | link!(B, C);
| ----------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
30 | link!(C, D);
| ----------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
31 | link!(D, E);
| ----------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
32 | link!(E, F);
| ----------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
33 | link!(F, G);
| ----------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
34 | link!(G, H);
| ----------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
35 | link!(H, I);
| ----------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
36 | link!(I, J);
| ----------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
37 | link!(J, K);
| ----------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
warning: associated function `new` is never used
--> treereduce.out:6:16
|
5 | impl $outer {
| ----------- associated function in this implementation
6 | fn new() -> $outer {
| ^^^
...
38 | link!(K, Bottom);
| ---------------- in this macro invocation
|
= note: this warning originates in the macro `link` (in Nightly builds, run with -Z macro-backtrace for more info)
error: reached the recursion limit finding the struct tail for `Bottom`
|
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "20"]`
Backtrace
error: reached the recursion limit finding the struct tail for `Bottom`
|
= help: consider increasing the recursion limit by adding a `#![recursion_limit = "20"]`
error: internal compiler error: compiler/rustc_codegen_llvm/src/context.rs:991:13: failed to get layout for `{type error}`: ReferencesError(ErrorGuaranteed(()))
thread 'rustc' panicked at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/compiler/rustc_errors/src/lib.rs:989:33:
Box<dyn Any>
stack backtrace:
0: 0x7faec41bc19c - std::backtrace_rs::backtrace::libunwind::trace::h63bb23e9dd9d0f13
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: 0x7faec41bc19c - std::backtrace_rs::backtrace::trace_unsynchronized::h15eabfca85a40e74
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7faec41bc19c - std::sys_common::backtrace::_print_fmt::hf0c7b8002dbb638c
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/sys_common/backtrace.rs:67:5
3: 0x7faec41bc19c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf11a95c6d431836f
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7faec422289c - core::fmt::rt::Argument::fmt::h15de052cc2ee80f2
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/core/src/fmt/rt.rs:138:9
5: 0x7faec422289c - core::fmt::write::h297aea74590c27b8
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/core/src/fmt/mod.rs:1094:21
6: 0x7faec41ae90e - std::io::Write::write_fmt::hdd9207bc895694ae
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/io/mod.rs:1714:15
7: 0x7faec41bbf85 - std::sys_common::backtrace::_print::hf5af2b088c0bb2dc
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7faec41bbf85 - std::sys_common::backtrace::print::ha8ca06c086ae5d11
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7faec41bf0da - std::panicking::panic_hook_with_disk_dump::{{closure}}::h87259dc27362a87b
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/panicking.rs:278:22
10: 0x7faec41bed73 - std::panicking::panic_hook_with_disk_dump::h213c181176413b01
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/panicking.rs:312:9
11: 0x7faec3019669 - <rustc_driver_impl[48833e2cf35ff341]::install_ice_hook::{closure#0} as core[d518b4b6aca24807]::ops::function::FnOnce<(&core[d518b4b6aca24807]::panic::panic_info::PanicInfo,)>>::call_once::{shim:vtable#0}
12: 0x7faec41bf980 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hf02ba24503119f1e
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/alloc/src/boxed.rs:2021:9
13: 0x7faec41bf980 - std::panicking::rust_panic_with_hook::he3f35d9a4da09197
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/panicking.rs:733:13
14: 0x7faec2ed5fc1 - std[bb7e30dda1331a7f]::panicking::begin_panic::<rustc_errors[d2305626044d95ac]::ExplicitBug>::{closure#0}
15: 0x7faec2ed4ce6 - std[bb7e30dda1331a7f]::sys_common::backtrace::__rust_end_short_backtrace::<std[bb7e30dda1331a7f]::panicking::begin_panic<rustc_errors[d2305626044d95ac]::ExplicitBug>::{closure#0}, !>
16: 0x7faec2e88856 - std[bb7e30dda1331a7f]::panicking::begin_panic::<rustc_errors[d2305626044d95ac]::ExplicitBug>
17: 0x7faec2e7ccce - <rustc_errors[d2305626044d95ac]::HandlerInner>::span_bug::<rustc_span[313c88adb0f8cb98]::span_encoding::Span, alloc[aad66170b1e28d8f]::string::String>
18: 0x7faec2e7cadf - <rustc_errors[d2305626044d95ac]::Handler>::span_bug::<rustc_span[313c88adb0f8cb98]::span_encoding::Span, alloc[aad66170b1e28d8f]::string::String>
19: 0x7faec2eb691d - rustc_middle[285106c4fd623be0]::util::bug::opt_span_bug_fmt::<rustc_span[313c88adb0f8cb98]::span_encoding::Span>::{closure#0}
20: 0x7faec2eb694a - rustc_middle[285106c4fd623be0]::ty::context::tls::with_opt::<rustc_middle[285106c4fd623be0]::util::bug::opt_span_bug_fmt<rustc_span[313c88adb0f8cb98]::span_encoding::Span>::{closure#0}, !>::{closure#0}
21: 0x7faec2eb6038 - rustc_middle[285106c4fd623be0]::ty::context::tls::with_context_opt::<rustc_middle[285106c4fd623be0]::ty::context::tls::with_opt<rustc_middle[285106c4fd623be0]::util::bug::opt_span_bug_fmt<rustc_span[313c88adb0f8cb98]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
22: 0x7faec1a6e0c4 - rustc_middle[285106c4fd623be0]::util::bug::span_bug_fmt::<rustc_span[313c88adb0f8cb98]::span_encoding::Span>
23: 0x7faec2eb7f1b - <rustc_codegen_llvm[29ef7bee937c9d23]::context::CodegenCx as rustc_middle[285106c4fd623be0]::ty::layout::LayoutOfHelpers>::handle_layout_err
24: 0x7faec2eb6d3a - <rustc_codegen_llvm[29ef7bee937c9d23]::context::CodegenCx as rustc_middle[285106c4fd623be0]::ty::layout::LayoutOf>::spanned_layout_of::{closure#0}
25: 0x7faec171ab3c - rustc_codegen_llvm[29ef7bee937c9d23]::debuginfo::utils::fat_pointer_kind
26: 0x7faec1709081 - rustc_codegen_llvm[29ef7bee937c9d23]::debuginfo::metadata::type_di_node
27: 0x7faec1700a70 - <rustc_codegen_llvm[29ef7bee937c9d23]::context::CodegenCx as rustc_codegen_ssa[648ad86e70a776a4]::traits::debuginfo::DebugInfoMethods>::dbg_scope_fn
28: 0x7faec1a4c09e - rustc_codegen_ssa[648ad86e70a776a4]::mir::codegen_mir::<rustc_codegen_llvm[29ef7bee937c9d23]::builder::Builder>
29: 0x7faec26636c0 - rustc_codegen_llvm[29ef7bee937c9d23]::base::compile_codegen_unit::module_codegen
30: 0x7faec26618c8 - rustc_codegen_llvm[29ef7bee937c9d23]::base::compile_codegen_unit
31: 0x7faec1f05602 - rustc_codegen_ssa[648ad86e70a776a4]::base::codegen_crate::<rustc_codegen_llvm[29ef7bee937c9d23]::LlvmCodegenBackend>
32: 0x7faec1f05016 - <rustc_codegen_llvm[29ef7bee937c9d23]::LlvmCodegenBackend as rustc_codegen_ssa[648ad86e70a776a4]::traits::backend::CodegenBackend>::codegen_crate
33: 0x7faec226c652 - <rustc_session[da4329df406289b6]::session::Session>::time::<alloc[aad66170b1e28d8f]::boxed::Box<dyn core[d518b4b6aca24807]::any::Any>, rustc_interface[f068b61f52e6f5de]::passes::start_codegen::{closure#0}>
34: 0x7faec226c19b - rustc_interface[f068b61f52e6f5de]::passes::start_codegen
35: 0x7faec22667aa - <rustc_middle[285106c4fd623be0]::ty::context::GlobalCtxt>::enter::<<rustc_interface[f068b61f52e6f5de]::queries::Queries>::ongoing_codegen::{closure#0}, core[d518b4b6aca24807]::result::Result<alloc[aad66170b1e28d8f]::boxed::Box<dyn core[d518b4b6aca24807]::any::Any>, rustc_span[313c88adb0f8cb98]::ErrorGuaranteed>>
36: 0x7faec22657e3 - <rustc_interface[f068b61f52e6f5de]::interface::Compiler>::enter::<rustc_driver_impl[48833e2cf35ff341]::run_compiler::{closure#1}::{closure#2}, core[d518b4b6aca24807]::result::Result<core[d518b4b6aca24807]::option::Option<rustc_interface[f068b61f52e6f5de]::queries::Linker>, rustc_span[313c88adb0f8cb98]::ErrorGuaranteed>>
37: 0x7faec225e858 - std[bb7e30dda1331a7f]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[f068b61f52e6f5de]::util::run_in_thread_pool_with_globals<rustc_interface[f068b61f52e6f5de]::interface::run_compiler<core[d518b4b6aca24807]::result::Result<(), rustc_span[313c88adb0f8cb98]::ErrorGuaranteed>, rustc_driver_impl[48833e2cf35ff341]::run_compiler::{closure#1}>::{closure#0}, core[d518b4b6aca24807]::result::Result<(), rustc_span[313c88adb0f8cb98]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[d518b4b6aca24807]::result::Result<(), rustc_span[313c88adb0f8cb98]::ErrorGuaranteed>>
38: 0x7faec225dfde - <<std[bb7e30dda1331a7f]::thread::Builder>::spawn_unchecked_<rustc_interface[f068b61f52e6f5de]::util::run_in_thread_pool_with_globals<rustc_interface[f068b61f52e6f5de]::interface::run_compiler<core[d518b4b6aca24807]::result::Result<(), rustc_span[313c88adb0f8cb98]::ErrorGuaranteed>, rustc_driver_impl[48833e2cf35ff341]::run_compiler::{closure#1}>::{closure#0}, core[d518b4b6aca24807]::result::Result<(), rustc_span[313c88adb0f8cb98]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[d518b4b6aca24807]::result::Result<(), rustc_span[313c88adb0f8cb98]::ErrorGuaranteed>>::{closure#1} as core[d518b4b6aca24807]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
39: 0x7faec41ca125 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h4bfeeb62bde7cabd
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/alloc/src/boxed.rs:2007:9
40: 0x7faec41ca125 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2e1d2bae8df88d22
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/alloc/src/boxed.rs:2007:9
41: 0x7faec41ca125 - std::sys::unix::thread::Thread::new::thread_start::h11377e8ae9be0f28
at /rustc/8131b9774ebcb6c162fcac71545a13543ec369e7/library/std/src/sys/unix/thread.rs:108:17
42: 0x7faebfc5544b - <unknown>
43: 0x7faebfcd8e40 - <unknown>
44: 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: please attach the file at `/tmp/im/rustc-ice-2023-08-03T21:07:26.289831244Z-1107975.txt` to your bug report
note: compiler flags: --crate-type lib -C debuginfo=2
query stack during panic:
end of query stack
error: aborting due to 2 previous errors; 12 warnings emitted