Closed
Description
auto-reduced (treereduce-rust):
struct Test9;
impl Clone for Y {
fn clone_from(&mut self, other: _) {
*self = Test9;
}
}
struct Struct;
trait Trait<T> {}
type Y = impl Trait<_>;
trait Qux {
type A;
const D: _ = 42;
}
impl Qux for Struct {}
fn map<T>() -> Qux<T> {
None
}
const _: Option<_> = map(value);
original code
original:
// Needed for `type Y = impl Trait<_>` and `type B = _;`
#![feature(associated_type_defaults)]
#![feature(type_alias_impl_trait)]
// This test checks that it is not possible to enable global type
// inference by using the `_` type placeholder.
fn test() -> _ { 5 }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
fn test2() -> (_, _) { (5, 5) }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
static TEST3: _ = "test";
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
static TEST4: _ = 145;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
static TEST5: (_, _) = (1, 2);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
fn test6(_: _) { }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn test6_b<T>(_: _, _: T) { }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn test6_c<T, K, L, A, B>(_: _, _: (T, K, L, A, B)) { }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn test7(x: _) { let _x: usize = x; }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn test8(_f: fn() -> _) { }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
//~^^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
struct Test9;
impl Test9 {
fn test9(&self) -> _ { () }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
fn test10(&self, _x : _) { }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
}
fn test11(x: &usize) -> &_ {
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
&x
}
unsafe fn test12(x: *const usize) -> *const *const _ {
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
&x
}
impl Clone for Y {
fn clone(&self) -> _ { Test9 }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn clone_from(&mut self, other: _) { *self = Test9; }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
}
struct Test10 {
a: _,
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for structs
b: (_, _),
}
pub fn main() {
static A = 42;
//~^ ERROR missing type for `static` item
static B: _ = 42;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
static C: Option<_> = Some(42);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
fn fn_test() -> _ { 5 }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
fn fn_test2() -> (_, _) { (5, 5) }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
static FN_TEST3: _ = "test";
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
static FN_TEST4: _ = 145;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
static FN_TEST5: (_, _) = (1, 2);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for static variables
fn fn_test6(_: _) { }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn fn_test7(x: _) { let _x: usize = x; }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn fn_test8(_f: fn() -> _) { }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
//~^^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
struct FnTest9;
impl FnTest9 {
fn fn_test9(&self) -> _ { () }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
fn fn_test10(&self, _x : _) { }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
}
impl Clone for FnTest9 {
fn clone(&self) -> _ { FnTest9 }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn clone_from(&mut self, other: _) { *self = FnTest9; }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
}
struct FnTest10 {
a: _,
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for structs
b: (_, _),
}
fn D(_: _) -> (_, _) { panic!() }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
//~| ERROR type annotations needed
fn fn_test12(x: i32) -> (_, _) { (x, x) }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
fn fn_test13(x: _) -> (i32, _) { (x, x) }
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
}
trait T {
fn method_test1(&self, x: _);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn method_test2(&self, x: _) -> _;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn method_test3(&self) -> _;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn assoc_fn_test1(x: _);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn assoc_fn_test2(x: _) -> _;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
fn assoc_fn_test3() -> _;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for functions
}
struct BadStruct<_>(_);
//~^ ERROR expected identifier, found reserved identifier `_`
//~| ERROR the placeholder `_` is not allowed within types on item signatures for structs
trait BadTrait<_> {}
//~^ ERROR expected identifier, found reserved identifier `_`
impl BadTrait<_> for BadStruct<_> {}
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for implementations
fn impl_trait() -> impl BadTrait<_> {
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for opaque types
unimplemented!()
}
struct BadStruct1<_, _>(_);
//~^ ERROR expected identifier, found reserved identifier `_`
//~| ERROR expected identifier, found reserved identifier `_`
//~| ERROR the name `_` is already used
//~| ERROR the placeholder `_` is not allowed within types on item signatures for structs
struct BadStruct2<_, T>(_, T);
//~^ ERROR expected identifier, found reserved identifier `_`
//~| ERROR the placeholder `_` is not allowed within types on item signatures for structs
type X = Box<_>;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for type aliases
struct Struct;
trait Trait<T> {}
impl Trait<usize> for Struct {}
type Y = impl Trait<_>;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for opaque types
fn foo() -> Y {
Struct
}
trait Qux {
type A;
type B = _;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
const C: _;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated constants
const D: _ = 42;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated constants
// type E: _; // FIXME: make the parser propagate the existence of `B`
type F: std::ops::Fn(_);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
}
impl Qux for Struct {
type A = _;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
type B = _;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated types
const C: _;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated constants
//~| ERROR associated constant in `impl` without body
const D: _ = 42;
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for associated constants
}
fn map<T>(_: fn() -> Option<&'static T>) -> Qux<T> {
None
}
fn value() -> Option<&'static _> {
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
Option::<&'static u8>::None
}
const _: Option<_> = map(value);
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for constants
fn evens_squared(n: usize) -> _ {
//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
(1..n).filter(|x| x % 2 == 0).map(|x| x * x)
}
const _: _ = (1..10).filter(|x| x % 2 == 0).map(|x| x * x);
//~^ ERROR the placeholderVersion information
rustc 1.76.0-nightly (e004adb55 2023-12-18)
binary: rustc
commit-hash: e004adb5561b724ac18f5b24584648ca4e42b6ad
commit-date: 2023-12-18
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[E0425]: cannot find value `value` in this scope
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:25:26
|
25 | const _: Option<_> = map(value);
| ^^^^^ not found in this scope
error[E0658]: `impl Trait` in type aliases is unstable
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:12:10
|
12 | type Y = impl Trait<_>;
| ^^^^^^^^^^^^^
|
= 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
error[E0601]: `main` function not found in crate `mvce`
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:25:33
|
25 | const _: Option<_> = map(value);
| ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs`
error[E0121]: the placeholder `_` is not allowed within types on item signatures for opaque types
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:12:21
|
12 | type Y = impl Trait<_>;
| ^ not allowed in type signatures
warning: trait objects without an explicit `dyn` are deprecated
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:21:16
|
21 | fn map<T>() -> Qux<T> {
| ^^^^^^
|
= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
= note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
= note: `#[warn(bare_trait_objects)]` on by default
help: use `dyn`
|
21 | fn map<T>() -> dyn Qux<T> {
| +++
error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:21:16
|
21 | fn map<T>() -> Qux<T> {
| ^^^ expected 0 generic arguments
|
note: trait defined here, with 0 generic parameters
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:14:7
|
14 | trait Qux {
| ^^^
help: replace the generic bound with the associated type
|
21 | fn map<T>() -> Qux<A = T> {
| +++
error[E0191]: the value of the associated type `A` in `Qux` must be specified
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:21:16
|
15 | type A;
| ------ `A` defined here
...
21 | fn map<T>() -> Qux<T> {
| ^^^^^^ associated type `A` must be specified
error[E0061]: this function takes 0 arguments but 1 argument was supplied
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:25:22
|
25 | const _: Option<_> = map(value);
| ^^^ -----
| |
| unexpected argument
| help: remove the extra argument
|
note: function defined here
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:21:4
|
21 | fn map<T>() -> Qux<T> {
| ^^^
error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:4:37
|
4 | fn clone_from(&mut self, other: _) {
| ^ not allowed in type signatures
|
help: try replacing `_` with the type in the corresponding trait method signature
|
4 | fn clone_from(&mut self, other: &Y) {
| ~~
warning: unused variable: `other`
--> /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:4:30
|
4 | fn clone_from(&mut self, other: _) {
| ^^^^^ help: if this is intentional, prefix it with an underscore: `_other`
|
= note: `#[warn(unused_variables)]` on by default
error: internal compiler error: compiler/rustc_borrowck/src/universal_regions.rs:823:36: cannot convert `ReLateParam(DefId(0:6 ~ mvce[6f81]::{impl#0}::clone_from), BrNamed(DefId(2:54203 ~ core[1a1d]::clone::Clone::clone_from::'_#1), '_))` to a region vid
thread 'rustc' panicked at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/compiler/rustc_errors/src/lib.rs:1119:75:
Box<dyn Any>
stack backtrace:
0: 0x7fc78658aedc - std::backtrace_rs::backtrace::libunwind::trace::hf8d1e06f2dbfd1f2
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
1: 0x7fc78658aedc - std::backtrace_rs::backtrace::trace_unsynchronized::h944a853e00e0958c
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7fc78658aedc - std::sys_common::backtrace::_print_fmt::h7873b3c31b9b61e3
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/std/src/sys_common/backtrace.rs:68:5
3: 0x7fc78658aedc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h944f887c48f27d50
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/std/src/sys_common/backtrace.rs:44:22
4: 0x7fc7865de040 - core::fmt::rt::Argument::fmt::h5846db7d079aab6c
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/core/src/fmt/rt.rs:142:9
5: 0x7fc7865de040 - core::fmt::write::h0fd1694961f0820b
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/core/src/fmt/mod.rs:1120:17
6: 0x7fc78657edef - std::io::Write::write_fmt::h2e32eec898b113ea
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/std/src/io/mod.rs:1810:15
7: 0x7fc78658acc4 - std::sys_common::backtrace::_print::h0f2767a50ffad96b
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/std/src/sys_common/backtrace.rs:47:5
8: 0x7fc78658acc4 - std::sys_common::backtrace::print::hc25db4529883a26a
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/std/src/sys_common/backtrace.rs:34:9
9: 0x7fc78658d987 - std::panicking::default_hook::{{closure}}::hd0792fb8614ae3f6
10: 0x7fc78658d6ef - std::panicking::default_hook::h3663fb8da827b919
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/std/src/panicking.rs:292:9
11: 0x7fc789356650 - std[c5ba72f1f49ccbe8]::panicking::update_hook::<alloc[1f2919d2069b2ca0]::boxed::Box<rustc_driver_impl[1444d3f693ba8f9f]::install_ice_hook::{closure#0}>>::{closure#0}
12: 0x7fc78658e0a6 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h52be504c6602c2c4
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/alloc/src/boxed.rs:2029:9
13: 0x7fc78658e0a6 - std::panicking::rust_panic_with_hook::h0f9b53de175fb9c2
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/std/src/panicking.rs:783:13
14: 0x7fc78938e374 - std[c5ba72f1f49ccbe8]::panicking::begin_panic::<rustc_errors[85bb5189461774fc]::ExplicitBug>::{closure#0}
15: 0x7fc78938ac06 - std[c5ba72f1f49ccbe8]::sys_common::backtrace::__rust_end_short_backtrace::<std[c5ba72f1f49ccbe8]::panicking::begin_panic<rustc_errors[85bb5189461774fc]::ExplicitBug>::{closure#0}, !>
16: 0x7fc78938a876 - std[c5ba72f1f49ccbe8]::panicking::begin_panic::<rustc_errors[85bb5189461774fc]::ExplicitBug>
17: 0x7fc7893995f8 - <rustc_errors[85bb5189461774fc]::diagnostic_builder::Bug as rustc_errors[85bb5189461774fc]::diagnostic_builder::EmissionGuarantee>::diagnostic_builder_emit_producing_guarantee
18: 0x7fc78977a8f5 - <rustc_errors[85bb5189461774fc]::DiagCtxt>::bug::<alloc[1f2919d2069b2ca0]::string::String>
19: 0x7fc7898147db - rustc_middle[8fed8700d526b8a]::util::bug::opt_span_bug_fmt::<rustc_span[8207f921591536bc]::span_encoding::Span>::{closure#0}
20: 0x7fc7897fe56a - rustc_middle[8fed8700d526b8a]::ty::context::tls::with_opt::<rustc_middle[8fed8700d526b8a]::util::bug::opt_span_bug_fmt<rustc_span[8207f921591536bc]::span_encoding::Span>::{closure#0}, !>::{closure#0}
21: 0x7fc7897fe408 - rustc_middle[8fed8700d526b8a]::ty::context::tls::with_context_opt::<rustc_middle[8fed8700d526b8a]::ty::context::tls::with_opt<rustc_middle[8fed8700d526b8a]::util::bug::opt_span_bug_fmt<rustc_span[8207f921591536bc]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
22: 0x7fc7876f73c0 - rustc_middle[8fed8700d526b8a]::util::bug::bug_fmt
23: 0x7fc78b8888ad - <rustc_borrowck[9e744fb7478f1ce7]::universal_regions::UniversalRegionIndices>::fold_to_region_vids::<rustc_middle[8fed8700d526b8a]::ty::sty::Binder<rustc_middle[8fed8700d526b8a]::ty::sty::FnSig>>::{closure#0}.cold.0
24: 0x7fc78a62a964 - <rustc_middle[8fed8700d526b8a]::ty::Ty as rustc_type_ir[2aac9198a7a08770]::fold::TypeSuperFoldable<rustc_middle[8fed8700d526b8a]::ty::context::TyCtxt>>::try_super_fold_with::<rustc_middle[8fed8700d526b8a]::ty::fold::RegionFolder>
25: 0x7fc78a629aad - <&rustc_middle[8fed8700d526b8a]::ty::list::List<rustc_middle[8fed8700d526b8a]::ty::Ty> as rustc_type_ir[2aac9198a7a08770]::fold::TypeFoldable<rustc_middle[8fed8700d526b8a]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[8fed8700d526b8a]::ty::fold::RegionFolder>
26: 0x7fc78b478bb1 - rustc_borrowck[9e744fb7478f1ce7]::do_mir_borrowck
27: 0x7fc78b477319 - rustc_borrowck[9e744fb7478f1ce7]::mir_borrowck
28: 0x7fc78b476db9 - rustc_query_impl[d8b4c006c93aa769]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d8b4c006c93aa769]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>
29: 0x7fc78a83ccc3 - rustc_query_system[17d0b5ace26db19a]::query::plumbing::try_execute_query::<rustc_query_impl[d8b4c006c93aa769]::DynamicConfig<rustc_query_system[17d0b5ace26db19a]::query::caches::VecCache<rustc_span[8207f921591536bc]::def_id::LocalDefId, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d8b4c006c93aa769]::plumbing::QueryCtxt, false>
30: 0x7fc78a83c890 - rustc_query_impl[d8b4c006c93aa769]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
31: 0x7fc78ba0b7bc - rustc_middle[8fed8700d526b8a]::query::plumbing::query_get_at::<rustc_query_system[17d0b5ace26db19a]::query::caches::VecCache<rustc_span[8207f921591536bc]::def_id::LocalDefId, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>>.llvm.13961986166402614303.cold.0
32: 0x7fc7894a4b15 - <rustc_hir_analysis[48336eb585649c0a]::collect::type_of::opaque::TaitConstraintLocator>::check
33: 0x7fc78948a6f5 - <rustc_hir_analysis[48336eb585649c0a]::collect::type_of::opaque::TaitConstraintLocator as rustc_hir[fc8afc23bda2c8cc]::intravisit::Visitor>::visit_impl_item
34: 0x7fc78948a641 - <rustc_hir_analysis[48336eb585649c0a]::collect::type_of::opaque::TaitConstraintLocator as rustc_hir[fc8afc23bda2c8cc]::intravisit::Visitor>::visit_item
35: 0x7fc78b5cf31b - rustc_hir_analysis[48336eb585649c0a]::collect::type_of::type_of_opaque
36: 0x7fc78b5ceaf9 - rustc_query_impl[d8b4c006c93aa769]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d8b4c006c93aa769]::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>
37: 0x7fc78a6849d4 - rustc_query_system[17d0b5ace26db19a]::query::plumbing::try_execute_query::<rustc_query_impl[d8b4c006c93aa769]::DynamicConfig<rustc_query_system[17d0b5ace26db19a]::query::caches::DefaultCache<rustc_span[8207f921591536bc]::def_id::DefId, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d8b4c006c93aa769]::plumbing::QueryCtxt, false>
38: 0x7fc78b645d1e - rustc_query_impl[d8b4c006c93aa769]::query_impl::type_of_opaque::get_query_non_incr::__rust_end_short_backtrace
39: 0x7fc78a7e64c4 - rustc_middle[8fed8700d526b8a]::query::plumbing::query_get_at::<rustc_query_system[17d0b5ace26db19a]::query::caches::DefaultCache<rustc_span[8207f921591536bc]::def_id::DefId, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>>
40: 0x7fc788a08b7b - rustc_hir_analysis[48336eb585649c0a]::collect::type_of::type_of
41: 0x7fc78a685ae6 - rustc_query_impl[d8b4c006c93aa769]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d8b4c006c93aa769]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>
42: 0x7fc78a6849d4 - rustc_query_system[17d0b5ace26db19a]::query::plumbing::try_execute_query::<rustc_query_impl[d8b4c006c93aa769]::DynamicConfig<rustc_query_system[17d0b5ace26db19a]::query::caches::DefaultCache<rustc_span[8207f921591536bc]::def_id::DefId, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d8b4c006c93aa769]::plumbing::QueryCtxt, false>
43: 0x7fc78a68459d - rustc_query_impl[d8b4c006c93aa769]::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
44: 0x7fc78aa70ac9 - rustc_middle[8fed8700d526b8a]::query::plumbing::query_get_at::<rustc_query_system[17d0b5ace26db19a]::query::caches::DefaultCache<rustc_span[8207f921591536bc]::def_id::DefId, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>>
45: 0x7fc78aa6cad9 - <rustc_privacy[db1ef3ffe8dcc2c1]::EmbargoVisitor as rustc_hir[fc8afc23bda2c8cc]::intravisit::Visitor>::visit_item
46: 0x7fc78aa68b8a - <rustc_middle[8fed8700d526b8a]::hir::map::Map>::visit_all_item_likes_in_crate::<rustc_privacy[db1ef3ffe8dcc2c1]::EmbargoVisitor>
47: 0x7fc78a642b50 - rustc_privacy[db1ef3ffe8dcc2c1]::effective_visibilities
48: 0x7fc78a6429b5 - rustc_query_impl[d8b4c006c93aa769]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d8b4c006c93aa769]::query_impl::effective_visibilities::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>
49: 0x7fc78b2bb0f2 - rustc_query_system[17d0b5ace26db19a]::query::plumbing::try_execute_query::<rustc_query_impl[d8b4c006c93aa769]::DynamicConfig<rustc_query_system[17d0b5ace26db19a]::query::caches::SingleCache<rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d8b4c006c93aa769]::plumbing::QueryCtxt, false>
50: 0x7fc78b2bba06 - rustc_query_impl[d8b4c006c93aa769]::query_impl::effective_visibilities::get_query_non_incr::__rust_end_short_backtrace
51: 0x7fc7896424e9 - rustc_infer[2ae1df4046e74a8]::traits::error_reporting::report_object_safety_error
52: 0x7fc789e945d1 - <rustc_infer[2ae1df4046e74a8]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[21155bdcdc3017e2]::traits::error_reporting::type_err_ctxt_ext::TypeErrCtxtExt>::report_selection_error
53: 0x7fc789ebd221 - <rustc_infer[2ae1df4046e74a8]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[21155bdcdc3017e2]::traits::error_reporting::type_err_ctxt_ext::InferCtxtPrivExt>::report_fulfillment_error
54: 0x7fc789e918d7 - <rustc_infer[2ae1df4046e74a8]::infer::error_reporting::TypeErrCtxt as rustc_trait_selection[21155bdcdc3017e2]::traits::error_reporting::type_err_ctxt_ext::TypeErrCtxtExt>::report_fulfillment_errors
55: 0x7fc78b049b05 - <rustc_hir_typeck[efc20ad080163a56]::fn_ctxt::FnCtxt>::type_inference_fallback
56: 0x7fc7895763f5 - rustc_hir_typeck[efc20ad080163a56]::diagnostic_only_typeck
57: 0x7fc789bab127 - rustc_query_impl[d8b4c006c93aa769]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d8b4c006c93aa769]::query_impl::diagnostic_only_typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>
58: 0x7fc78a83ccc3 - rustc_query_system[17d0b5ace26db19a]::query::plumbing::try_execute_query::<rustc_query_impl[d8b4c006c93aa769]::DynamicConfig<rustc_query_system[17d0b5ace26db19a]::query::caches::VecCache<rustc_span[8207f921591536bc]::def_id::LocalDefId, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d8b4c006c93aa769]::plumbing::QueryCtxt, false>
59: 0x7fc789bb7080 - rustc_query_impl[d8b4c006c93aa769]::query_impl::diagnostic_only_typeck::get_query_non_incr::__rust_end_short_backtrace
60: 0x7fc78ba0b7bc - rustc_middle[8fed8700d526b8a]::query::plumbing::query_get_at::<rustc_query_system[17d0b5ace26db19a]::query::caches::VecCache<rustc_span[8207f921591536bc]::def_id::LocalDefId, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>>.llvm.13961986166402614303.cold.0
61: 0x7fc78948a9dc - rustc_hir_analysis[48336eb585649c0a]::collect::type_of::infer_placeholder_type
62: 0x7fc788a090df - rustc_hir_analysis[48336eb585649c0a]::collect::type_of::type_of
63: 0x7fc78a685ae6 - rustc_query_impl[d8b4c006c93aa769]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d8b4c006c93aa769]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>
64: 0x7fc78a6849d4 - rustc_query_system[17d0b5ace26db19a]::query::plumbing::try_execute_query::<rustc_query_impl[d8b4c006c93aa769]::DynamicConfig<rustc_query_system[17d0b5ace26db19a]::query::caches::DefaultCache<rustc_span[8207f921591536bc]::def_id::DefId, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d8b4c006c93aa769]::plumbing::QueryCtxt, false>
65: 0x7fc78a68459d - rustc_query_impl[d8b4c006c93aa769]::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
66: 0x7fc78a8f7fa2 - <rustc_hir_analysis[48336eb585649c0a]::collect::CollectItemTypesVisitor as rustc_hir[fc8afc23bda2c8cc]::intravisit::Visitor>::visit_item
67: 0x7fc78a8f7329 - rustc_hir_analysis[48336eb585649c0a]::collect::collect_mod_item_types
68: 0x7fc78a8f72b7 - rustc_query_impl[d8b4c006c93aa769]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d8b4c006c93aa769]::query_impl::collect_mod_item_types::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 0usize]>>
69: 0x7fc78b1af07b - rustc_query_system[17d0b5ace26db19a]::query::plumbing::try_execute_query::<rustc_query_impl[d8b4c006c93aa769]::DynamicConfig<rustc_query_system[17d0b5ace26db19a]::query::caches::DefaultCache<rustc_span[8207f921591536bc]::def_id::LocalModDefId, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[d8b4c006c93aa769]::plumbing::QueryCtxt, false>
70: 0x7fc78b1aeb97 - rustc_query_impl[d8b4c006c93aa769]::query_impl::collect_mod_item_types::get_query_non_incr::__rust_end_short_backtrace
71: 0x7fc78ae312df - rustc_hir_analysis[48336eb585649c0a]::check_crate
72: 0x7fc78af6cb17 - rustc_interface[b6a357093a72c36b]::passes::analysis
73: 0x7fc78af6c75d - rustc_query_impl[d8b4c006c93aa769]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d8b4c006c93aa769]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 1usize]>>
74: 0x7fc78b5a8db2 - rustc_query_system[17d0b5ace26db19a]::query::plumbing::try_execute_query::<rustc_query_impl[d8b4c006c93aa769]::DynamicConfig<rustc_query_system[17d0b5ace26db19a]::query::caches::SingleCache<rustc_middle[8fed8700d526b8a]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[d8b4c006c93aa769]::plumbing::QueryCtxt, false>
75: 0x7fc78b5a8bb9 - rustc_query_impl[d8b4c006c93aa769]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
76: 0x7fc78b63ddf1 - rustc_interface[b6a357093a72c36b]::interface::run_compiler::<core[1a1dce668ca699c0]::result::Result<(), rustc_span[8207f921591536bc]::ErrorGuaranteed>, rustc_driver_impl[1444d3f693ba8f9f]::run_compiler::{closure#0}>::{closure#0}
77: 0x7fc78b5b5020 - std[c5ba72f1f49ccbe8]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[b6a357093a72c36b]::util::run_in_thread_with_globals<rustc_interface[b6a357093a72c36b]::util::run_in_thread_pool_with_globals<rustc_interface[b6a357093a72c36b]::interface::run_compiler<core[1a1dce668ca699c0]::result::Result<(), rustc_span[8207f921591536bc]::ErrorGuaranteed>, rustc_driver_impl[1444d3f693ba8f9f]::run_compiler::{closure#0}>::{closure#0}, core[1a1dce668ca699c0]::result::Result<(), rustc_span[8207f921591536bc]::ErrorGuaranteed>>::{closure#0}, core[1a1dce668ca699c0]::result::Result<(), rustc_span[8207f921591536bc]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[1a1dce668ca699c0]::result::Result<(), rustc_span[8207f921591536bc]::ErrorGuaranteed>>
78: 0x7fc78b5b4e4f - <<std[c5ba72f1f49ccbe8]::thread::Builder>::spawn_unchecked_<rustc_interface[b6a357093a72c36b]::util::run_in_thread_with_globals<rustc_interface[b6a357093a72c36b]::util::run_in_thread_pool_with_globals<rustc_interface[b6a357093a72c36b]::interface::run_compiler<core[1a1dce668ca699c0]::result::Result<(), rustc_span[8207f921591536bc]::ErrorGuaranteed>, rustc_driver_impl[1444d3f693ba8f9f]::run_compiler::{closure#0}>::{closure#0}, core[1a1dce668ca699c0]::result::Result<(), rustc_span[8207f921591536bc]::ErrorGuaranteed>>::{closure#0}, core[1a1dce668ca699c0]::result::Result<(), rustc_span[8207f921591536bc]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[1a1dce668ca699c0]::result::Result<(), rustc_span[8207f921591536bc]::ErrorGuaranteed>>::{closure#1} as core[1a1dce668ca699c0]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
79: 0x7fc786597ef5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h605802586f69a65d
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/alloc/src/boxed.rs:2015:9
80: 0x7fc786597ef5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hde1bcd609c096275
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/alloc/src/boxed.rs:2015:9
81: 0x7fc786597ef5 - std::sys::unix::thread::Thread::new::thread_start::h972b401527bc30fd
at /rustc/e004adb5561b724ac18f5b24584648ca4e42b6ad/library/std/src/sys/unix/thread.rs:108:17
82: 0x7fc7863849eb - <unknown>
83: 0x7fc7864087cc - <unknown>
84: 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 (e004adb55 2023-12-18) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [mir_borrowck] borrow-checking `<impl at /tmp/icemaker_global_tempdir.fSNNtQJdclF8/rustc_testrunner_tmpdir_reporting.O3o2lOsZKdS6/mvce.rs:3:1: 3:17>::clone_from`
#1 [type_of_opaque] computing type of opaque `Y::{opaque#0}`
#2 [type_of] computing type of `Y::{opaque#0}`
#3 [effective_visibilities] checking effective visibilities
#4 [diagnostic_only_typeck] type-checking `_`
#5 [type_of] computing type of `_`
#6 [collect_mod_item_types] collecting item types in top-level module
#7 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 9 previous errors; 2 warnings emitted
Some errors have detailed explanations: E0061, E0107, E0121, E0191, E0425, E0601, E0658.
For more information about an error, try `rustc --explain E0061`.