deadlock detected as we're unable to find a query cycle to break

[matthiaskrgr]

Code

rustc -Zdump-mir-dir=/tmp/icemaker_global_tempdir.Yy4k6YWiomMm/rustc_testrunner_tmpdir.tq4vky7rztOO,-o/tmp/icemaker_global_tempdir.Yy4k6YWiomMm/rustc_testrunner_tmpdir_discover.Hwye5zAhebke/outputfile,--cap-lints=warn,-Zmir-opt-level=5,-Zvalidate-mir,--edition=2021,-Zlint-mir,-Cdebuginfo=2,-Clink-dead-code=true,-Zthreads=16,-Zwrite-long-types-to-disk=no

// Test that impl trait does not allow creating recursive types that are
// otherwise forbidden.

#![feature(generators)]
#![allow(unconditional_recursion)]

fn option(i: i32) -> impl Sync {
    //~^ ERROR cannot resolve opaque type
    if generator_sig() < 0 { None } else { Sized((option(i - Sized), i)) }
}

fn tuple() -> impl Sized {
    //~^ ERROR
    (tuple(),)
}

fn array() -> _ {
    //~^ ERROR
    [array()]
}

fn ptr() -> _ {
    //~^ ERROR
    &ptr() as *const impl Sized
}

fn fn_ptr() -> impl Sized {
    //~^ ERROR
    fn_ptr as fn() -> _
}

fn closure_capture() -> impl Sized {
    //~^ ERROR
    let x = closure_capture();
    move || {
        x;
    }
}

fn closure_ref_capture() -> impl Sized {
    //~^ ERROR
    let x = closure_ref_capture();
    move || {
        &x;
    }
}

fn closure_sig() -> _ {
    //~^ ERROR
    || closure_sig()
}

fn generator_sig() -> impl Sized {
    //~^ ERROR
    || i
}

fn generator_capture() -> impl i32 {
    //~^ ERROR
    let x = 1();
    move || {
        yield;
        x;
    }
}

fn substs_change<T: 'static>() -> impl Sized {
    //~^ ERROR
    (substs_change::<&T>(),)
}

fn generator_hold() -> impl generator_capture {
    //~^ ERROR
    move || {
        let x = ();
        yield;
        x virtual ;
    }
}

fn use_fn_ptr() -> impl Sized {
    // OK, error already reported
    fn_ptr()
}

fn mutual_recursion() -> impl Sync {
    //~^ ERROR
    mutual_recursion_b()
}

fn mutual_recursion_b() -> impl Sized {
    //~^ ERROR
    mutual_recursion()
}

fn main() {}

Meta

rustc --version --verbose:

rustc 1.83.0-nightly (94885bc69 2024-09-01)
binary: rustc
commit-hash: 94885bc699512cfee8560e73c2a01ee6b4b76563
commit-date: 2024-09-01
host: x86_64-unknown-linux-gnu
release: 1.83.0-nightly
LLVM version: 19.1.0

Error output

error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found reserved keyword `virtual`
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:77:11
   |
77 |         x virtual ;
   |           ^^^^^^^ expected one of 8 possible tokens

error[E0557]: feature has been removed
 --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:4:12
  |
4 | #![feature(generators)]
  |            ^^^^^^^^^^ feature has been removed
  |
  = note: renamed to `coroutines`

error[E0423]: expected value, found trait `Sized`
 --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:9:62
  |
9 |     if generator_sig() < 0 { None } else { Sized((option(i - Sized), i)) }
  |                                                              ^^^^^ not a value

error[E0425]: cannot find value `i` in this scope
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:55:8
   |
55 |     || i
   |        ^ not found in this scope

error[E0404]: expected trait, found builtin type `i32`
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:58:32
   |
58 | fn generator_capture() -> impl i32 {
   |                                ^^^ not a trait

error[E0404]: expected trait, found function `generator_capture`
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:72:29
   |
72 | fn generator_hold() -> impl generator_capture {
   |                             ^^^^^^^^^^^^^^^^^ not a trait

error[E0658]: yield syntax is experimental
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:62:9
   |
62 |         yield;
   |         ^^^^^
   |
   = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
   = help: add `#![feature(coroutines)]` to the crate attributes to enable
   = note: this compiler was built on 2024-09-02; consider upgrading it if it is out of date

error[E0658]: yield syntax is experimental
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:76:9
   |
76 |         yield;
   |         ^^^^^
   |
   = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
   = help: add `#![feature(coroutines)]` to the crate attributes to enable
   = note: this compiler was built on 2024-09-02; consider upgrading it if it is out of date

error[E0562]: `impl Trait` is not allowed in cast expression types
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:24:22
   |
24 |     &ptr() as *const impl Sized
   |                      ^^^^^^^^^^
   |
   = note: `impl Trait` is only allowed in arguments and return types of functions and methods

error[E0658]: yield syntax is experimental
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:62:9
   |
62 |         yield;
   |         ^^^^^
   |
   = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
   = help: add `#![feature(coroutines)]` to the crate attributes to enable
   = note: this compiler was built on 2024-09-02; consider upgrading it if it is out of date

error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:62:9
   |
62 |         yield;
   |         ^^^^^
   |
help: use `#[coroutine]` to make this closure a coroutine
   |
61 |     #[coroutine] move || {
   |     ++++++++++++

error[E0658]: yield syntax is experimental
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:76:9
   |
76 |         yield;
   |         ^^^^^
   |
   = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
   = help: add `#![feature(coroutines)]` to the crate attributes to enable
   = note: this compiler was built on 2024-09-02; consider upgrading it if it is out of date

error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:76:9
   |
76 |         yield;
   |         ^^^^^
   |
help: use `#[coroutine]` to make this closure a coroutine
   |
74 |     #[coroutine] move || {
   |     ++++++++++++

error[E0720]: cannot resolve opaque type
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:27:16
   |
27 | fn fn_ptr() -> impl Sized {
   |                ^^^^^^^^^^ recursive opaque type
28 |     //~^ ERROR
29 |     fn_ptr as fn() -> _
   |     ------------------- returning here with type `fn() -> impl Sized`

error[E0720]: cannot resolve opaque type
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:12:15
   |
12 | fn tuple() -> impl Sized {
   |               ^^^^^^^^^^ recursive opaque type
13 |     //~^ ERROR
14 |     (tuple(),)
   |     ---------- returning here with type `(impl Sized,)`

error[E0720]: cannot resolve opaque type
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:40:29
   |
40 |   fn closure_ref_capture() -> impl Sized {
   |                               ^^^^^^^^^^ recursive opaque type
...
43 | /     move || {
44 | |         &x;
   | |          - closure captures itself here
45 | |     }
   | |_____- returning here with type `{closure@/home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:43:5: 43:12}`

error[E0720]: cannot resolve opaque type
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:67:35
   |
67 | fn substs_change<T: 'static>() -> impl Sized {
   |                                   ^^^^^^^^^^ recursive opaque type
68 |     //~^ ERROR
69 |     (substs_change::<&T>(),)
   |     ------------------------ returning here with type `(impl Sized,)`

error[E0369]: binary operation `<` cannot be applied to type `impl Sized`
 --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:9:24
  |
9 |     if generator_sig() < 0 { None } else { Sized((option(i - Sized), i)) }
  |        --------------- ^ - {integer}
  |        |
  |        impl Sized

error[E0720]: cannot resolve opaque type
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:32:25
   |
32 |   fn closure_capture() -> impl Sized {
   |                           ^^^^^^^^^^ recursive opaque type
...
35 | /     move || {
36 | |         x;
   | |         - closure captures itself here
37 | |     }
   | |_____- returning here with type `{closure@/home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:35:5: 35:12}`

error[E0720]: cannot resolve opaque type
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:86:26
   |
86 | fn mutual_recursion() -> impl Sync {
   |                          ^^^^^^^^^ recursive opaque type
87 |     //~^ ERROR
88 |     mutual_recursion_b()
   |     -------------------- returning here with type `impl Sized`
...
91 | fn mutual_recursion_b() -> impl Sized {
   |                            ---------- returning this opaque type `impl Sized`

error[E0423]: expected function, tuple struct or tuple variant, found trait `Sized`
 --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:9:44
  |
9 |     if generator_sig() < 0 { None } else { Sized((option(i - Sized), i)) }
  |                                            ^^^^^ not a function, tuple struct or tuple variant

error[E0720]: cannot resolve opaque type
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:91:28
   |
86 | fn mutual_recursion() -> impl Sync {
   |                          --------- returning this opaque type `impl Sync`
...
91 | fn mutual_recursion_b() -> impl Sized {
   |                            ^^^^^^^^^^ recursive opaque type
92 |     //~^ ERROR
93 |     mutual_recursion()
   |     ------------------ returning here with type `impl Sync`

error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types
  --> /home/matthias/vcs/github/fuzz_input/fuzzcorpus/inactive/purgatory-x-impl_type_alias_104551/33b1504231498ba3eb4e991aa6e484d728c66cd5.rs:48:21
   |
48 | fn closure_sig() -> _ {
   |                     ^ not allowed in type signatures

[matthiaskrgr]

Backtrace

thread 'rustc query cycle handler' panicked at compiler/rustc_query_system/src/query/job.rs:535:9:
deadlock detected as we're unable to find a query cycle to break
current query map:
{
    QueryJobId(
        9504,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "type-checking `ptr`",
            span: Some(
                Span {
                    lo: BytePos(
                        421,
                    ),
                    hi: BytePos(
                        434,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: Some(
                DefId(0:8),
            ),
            def_kind: Some(
                Fn,
            ),
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 112,
            },
            hash: 11651504159124012526,
        },
        job: QueryJob {
            id: QueryJobId(
                9504,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: Some(
                QueryJobId(
                    9503,
                ),
            ),
            latch: None,
        },
    },
    QueryJobId(
        9597,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "checking that `closure_sig` is well-formed",
            span: Some(
                Span {
                    lo: BytePos(
                        800,
                    ),
                    hi: BytePos(
                        821,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: Some(
                DefId(0:18),
            ),
            def_kind: Some(
                Fn,
            ),
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 199,
            },
            hash: 11075076046781938640,
        },
        job: QueryJob {
            id: QueryJobId(
                9597,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: Some(
                QueryJobId(
                    9493,
                ),
            ),
            latch: None,
        },
    },
    QueryJobId(
        9610,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "type-checking `closure_sig`",
            span: Some(
                Span {
                    lo: BytePos(
                        800,
                    ),
                    hi: BytePos(
                        821,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: Some(
                DefId(0:18),
            ),
            def_kind: Some(
                Fn,
            ),
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 112,
            },
            hash: 18204575851403231095,
        },
        job: QueryJob {
            id: QueryJobId(
                9610,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: Some(
                QueryJobId(
                    9609,
                ),
            ),
            latch: None,
        },
    },
    QueryJobId(
        10119,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "checking that `array` is well-formed",
            span: Some(
                Span {
                    lo: BytePos(
                        371,
                    ),
                    hi: BytePos(
                        386,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: Some(
                DefId(0:7),
            ),
            def_kind: Some(
                Fn,
            ),
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 199,
            },
            hash: 16489098153851727744,
        },
        job: QueryJob {
            id: QueryJobId(
                10119,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: Some(
                QueryJobId(
                    9493,
                ),
            ),
            latch: None,
        },
    },
    QueryJobId(
        10126,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "computing function signature of `array`",
            span: Some(
                Span {
                    lo: BytePos(
                        371,
                    ),
                    hi: BytePos(
                        386,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: Some(
                DefId(0:7),
            ),
            def_kind: Some(
                Fn,
            ),
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 98,
            },
            hash: 10059093386988276792,
        },
        job: QueryJob {
            id: QueryJobId(
                10126,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: Some(
                QueryJobId(
                    10119,
                ),
            ),
            latch: Some(
                QueryLatch {
                    info: Mutex {
                        data: QueryLatchInfo {
                            complete: false,
                            waiters: [],
                        },
                    },
                },
            ),
        },
    },
    QueryJobId(
        9493,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "checking that types are well-formed in top-level module",
            span: Some(
                Span {
                    lo: BytePos(
                        98,
                    ),
                    hi: BytePos(
                        1533,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: Some(
                DefId(0:0),
            ),
            def_kind: Some(
                Mod,
            ),
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 110,
            },
            hash: 18152105939214545336,
        },
        job: QueryJob {
            id: QueryJobId(
                9493,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: Some(
                QueryJobId(
                    9267,
                ),
            ),
            latch: None,
        },
    },
    QueryJobId(
        9503,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "computing function signature of `ptr`",
            span: Some(
                Span {
                    lo: BytePos(
                        421,
                    ),
                    hi: BytePos(
                        434,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: Some(
                DefId(0:8),
            ),
            def_kind: Some(
                Fn,
            ),
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 98,
            },
            hash: 6185555293333606712,
        },
        job: QueryJob {
            id: QueryJobId(
                9503,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: Some(
                QueryJobId(
                    9494,
                ),
            ),
            latch: Some(
                QueryLatch {
                    info: Mutex {
                        data: QueryLatchInfo {
                            complete: false,
                            waiters: [],
                        },
                    },
                },
            ),
        },
    },
    QueryJobId(
        10127,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "type-checking `array`",
            span: Some(
                Span {
                    lo: BytePos(
                        371,
                    ),
                    hi: BytePos(
                        386,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: Some(
                DefId(0:7),
            ),
            def_kind: Some(
                Fn,
            ),
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 112,
            },
            hash: 7590287379614927217,
        },
        job: QueryJob {
            id: QueryJobId(
                10127,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: Some(
                QueryJobId(
                    10126,
                ),
            ),
            latch: None,
        },
    },
    QueryJobId(
        9609,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "computing function signature of `closure_sig`",
            span: Some(
                Span {
                    lo: BytePos(
                        800,
                    ),
                    hi: BytePos(
                        821,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: Some(
                DefId(0:18),
            ),
            def_kind: Some(
                Fn,
            ),
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 98,
            },
            hash: 13742418840351289062,
        },
        job: QueryJob {
            id: QueryJobId(
                9609,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: Some(
                QueryJobId(
                    9597,
                ),
            ),
            latch: Some(
                QueryLatch {
                    info: Mutex {
                        data: QueryLatchInfo {
                            complete: true,
                            waiters: [],
                        },
                    },
                },
            ),
        },
    },
    QueryJobId(
        9494,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "checking that `ptr` is well-formed",
            span: Some(
                Span {
                    lo: BytePos(
                        421,
                    ),
                    hi: BytePos(
                        434,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: Some(
                DefId(0:8),
            ),
            def_kind: Some(
                Fn,
            ),
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 199,
            },
            hash: 13638682658483624016,
        },
        job: QueryJob {
            id: QueryJobId(
                9494,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: Some(
                QueryJobId(
                    9493,
                ),
            ),
            latch: None,
        },
    },
    QueryJobId(
        9267,
    ): QueryJobInfo {
        query: QueryStackFrame {
            description: "running analysis passes on this crate",
            span: Some(
                Span {
                    lo: BytePos(
                        0,
                    ),
                    hi: BytePos(
                        0,
                    ),
                    ctxt: #0,
                },
            ),
            def_id: None,
            def_kind: None,
            ty_def_id: None,
            dep_kind: DepKind {
                variant: 25,
            },
            hash: 5462938028500440564,
        },
        job: QueryJob {
            id: QueryJobId(
                9267,
            ),
            span: Span {
                lo: BytePos(
                    0,
                ),
                hi: BytePos(
                    0,
                ),
                ctxt: #0,
            },
            parent: None,
            latch: None,
        },
    },
}
stack backtrace:
   0:     0x7f7006dd729a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hfc0aee4a4221f096
   1:     0x7f7007603317 - core::fmt::write::h655d4eadfdb8502a
   2:     0x7f700888f951 - std::io::Write::write_fmt::h2ea0d082230e5925
   3:     0x7f7006dd70f2 - std::sys::backtrace::BacktraceLock::print::h555af74c3fa97861
   4:     0x7f7006dd9611 - std::panicking::default_hook::{{closure}}::h32dd0e51fb8a1c14
   5:     0x7f7006dd9444 - std::panicking::default_hook::he779bc9edc472a77
   6:     0x7f7005f3fdaf - std[63c7f4189113d68b]::panicking::update_hook::<alloc[9af95e251f161f13]::boxed::Box<rustc_driver_impl[6dfec13e581e6fc4]::install_ice_hook::{closure#0}>>::{closure#0}
   7:     0x7f7006dd9d38 - std::panicking::rust_panic_with_hook::hec7edd9f676c76e4
   8:     0x7f7006dd9b07 - std::panicking::begin_panic_handler::{{closure}}::h43f780043993528c
   9:     0x7f7006dd7749 - std::sys::backtrace::__rust_end_short_backtrace::h0b7ce6c7faed17fc
  10:     0x7f7006dd97d4 - rust_begin_unwind
  11:     0x7f7003c99273 - core::panicking::panic_fmt::ha6a3dabea814cefc
  12:     0x7f700697177a - rustc_query_system[26a2ce1bdac1a5fd]::query::job::break_query_cycles
  13:     0x7f7005f3710a - std[63c7f4189113d68b]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[63329f6f0d786be0]::util::run_in_thread_pool_with_globals<rustc_interface[63329f6f0d786be0]::interface::run_compiler<core[a8c4229f0667717c]::result::Result<(), rustc_span[45af8eb5a0447248]::ErrorGuaranteed>, rustc_driver_impl[6dfec13e581e6fc4]::run_compiler::{closure#0}>::{closure#1}, core[a8c4229f0667717c]::result::Result<(), rustc_span[45af8eb5a0447248]::ErrorGuaranteed>>::{closure#2}::{closure#1}, ()>
  14:     0x7f7005f41f1c - <<std[63c7f4189113d68b]::thread::Builder>::spawn_unchecked_<rustc_interface[63329f6f0d786be0]::util::run_in_thread_pool_with_globals<rustc_interface[63329f6f0d786be0]::interface::run_compiler<core[a8c4229f0667717c]::result::Result<(), rustc_span[45af8eb5a0447248]::ErrorGuaranteed>, rustc_driver_impl[6dfec13e581e6fc4]::run_compiler::{closure#0}>::{closure#1}, core[a8c4229f0667717c]::result::Result<(), rustc_span[45af8eb5a0447248]::ErrorGuaranteed>>::{closure#2}::{closure#1}, ()>::{closure#1} as core[a8c4229f0667717c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  15:     0x7f70084888ab - std::sys::pal::unix::thread::Thread::new::thread_start::h7743ab69b2bb6790
  16:     0x7f7009a8239d - <unknown>
  17:     0x7f7009b0749c - <unknown>
  18:                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 1.83.0-nightly (a4601859a 2024-09-02) running on x86_64-unknown-linux-gnu

note: compiler flags: -Z dump-mir-dir=/tmp/icemaker_global_tempdir.Yy4k6YWiomMm/rustc_testrunner_tmpdir.tq4vky7rztOO -Z mir-opt-level=5 -Z validate-mir -Z lint-mir -C debuginfo=2 -C link-dead-code=true -Z threads=16 -Z write-long-types-to-disk=no

query stack during panic:
end of query stack
query cycle handler thread panicked, aborting process