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ICE: Can't write value with incompatible type #1330

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matthiaskrgr opened this issue Dec 20, 2022 · 2 comments · Fixed by rust-lang/rust#105977
Closed

ICE: Can't write value with incompatible type #1330

matthiaskrgr opened this issue Dec 20, 2022 · 2 comments · Fixed by rust-lang/rust#105977

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@matthiaskrgr
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#![feature(never_type)]

use std::future::Future;

// See if we can run a basic `async fn`
pub async fn foo(x: &u32, y: u32) -> u32 {
   2
}

fn run_fut<T>(fut: impl Future<Output = T>) -> T {
    use std::sync::Arc;
    use std::task::{Context, Poll, Wake, Waker};

    struct MyWaker;
    impl Wake for MyWaker {
        fn wake(self: Arc<Self>) {
            unimplemented!()
        }
    }

    let waker = Waker::from(Arc::new(MyWaker));
    let mut context = Context::from_waker(&waker);

    let mut pinned = Box::pin(fut);
    loop {
        match pinned.as_mut().poll(&mut context) {
            Poll::Pending => continue,
            Poll::Ready(v) => return v,
        }
    }
}

fn main() {
    let x = 5;
    assert_eq!(run_fut(foo(&x, 7)), 31);
}

rustc -Zcodegen-backend=cranelift 414d5aaf5cc7cfa317e6c363af8adbb1ca8c204c.rs --edition=2021

warning: unused variable: `x`
 --> 414d5aaf5cc7cfa317e6c363af8adbb1ca8c204c.rs:6:18
  |
6 | pub async fn foo(x: &u32, y: u32) -> u32 {
  |                  ^ help: if this is intentional, prefix it with an underscore: `_x`
  |
  = note: `#[warn(unused_variables)]` on by default

warning: unused variable: `y`
 --> 414d5aaf5cc7cfa317e6c363af8adbb1ca8c204c.rs:6:27
  |
6 | pub async fn foo(x: &u32, y: u32) -> u32 {
  |                           ^ help: if this is intentional, prefix it with an underscore: `_y`

thread 'rustc' panicked at 'assertion failed: `(left == right)`
  left: `&mut std::task::Context<'_>`,
 right: `std::future::ResumeTy`: Can't write value with incompatible type Ref(ReErased, std::task::Context<'_>, Mut) to place with type Adt(std::future::ResumeTy, [])

[u32, [async fn body@414d5aaf5cc7cfa317e6c363af8adbb1ca8c204c.rs:6:42: 8:2]]
[CPlace { inner: Var(_0, var0), layout: TyAndLayout { ty: u32, layout: Layout { size: Size(4 bytes), align: AbiAndPrefAlign { abi: Align(4 bytes), pref: Align(4 bytes) }, abi: Scalar(Initialized { value: Int(I32, false), valid_range: 0..=4294967295 }), fields: Primitive, largest_niche: None, variants: Single { index: 0 } } } }, CPlace { inner: Addr(Pointer { base: Addr(v0), offset: Offset32(0) }, None), layout: TyAndLayout { ty: [async fn body@414d5aaf5cc7cfa317e6c363af8adbb1ca8c204c.rs:6:42: 8:2], layout: Layout { size: Size(16 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Aggregate { sized: true }, fields: Arbitrary { offsets: [Size(0 bytes), Size(8 bytes), Size(12 bytes)], memory_index: [0, 1, 2] }, largest_niche: Some(Niche { offset: Size(12 bytes), value: Int(I8, false), valid_range: 0..=2 }), variants: Multiple { tag: Initialized { value: Int(I8, false), valid_range: 0..=2 }, tag_encoding: Direct, tag_field: 2, variants: [Layout { size: Size(16 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Aggregate { sized: true }, fields: Arbitrary { offsets: [], memory_index: [] }, largest_niche: None, variants: Single { index: 0 } }, Layout { size: Size(16 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Aggregate { sized: true }, fields: Arbitrary { offsets: [], memory_index: [] }, largest_niche: None, variants: Single { index: 1 } }, Layout { size: Size(16 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Aggregate { sized: true }, fields: Arbitrary { offsets: [], memory_index: [] }, largest_niche: None, variants: Single { index: 2 } }] } } } }, CPlace { inner: Addr(Pointer { base: Stack(ss0), offset: Offset32(0) }, None), layout: TyAndLayout { ty: std::task::Waker, layout: Layout { size: Size(16 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: ScalarPair(Initialized { value: Pointer, valid_range: 0..=18446744073709551615 }, Initialized { value: Pointer, valid_range: 1..=18446744073709551615 }), fields: Arbitrary { offsets: [Size(0 bytes)], memory_index: [0] }, largest_niche: Some(Niche { offset: Size(8 bytes), value: Pointer, valid_range: 1..=18446744073709551615 }), variants: Single { index: 0 } } } }, CPlace { inner: Addr(Pointer { base: Stack(ss1), offset: Offset32(0) }, None), layout: TyAndLayout { ty: std::sync::Arc<run_fut::MyWaker>, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Scalar(Initialized { value: Pointer, valid_range: 1..=18446744073709551615 }), fields: Arbitrary { offsets: [Size(0 bytes), Size(0 bytes)], memory_index: [1, 0] }, largest_niche: Some(Niche { offset: Size(0 bytes), value: Pointer, valid_range: 1..=18446744073709551615 }), variants: Single { index: 0 } } } }, CPlace { inner: Addr(Pointer { base: Dangling(Align(8 bytes)), offset: Offset32(0) }, None), layout: TyAndLayout { ty: run_fut::MyWaker, layout: Layout { size: Size(0 bytes), align: AbiAndPrefAlign { abi: Align(1 bytes), pref: Align(8 bytes) }, abi: Aggregate { sized: true }, fields: Arbitrary { offsets: [], memory_index: [] }, largest_niche: None, variants: Single { index: 0 } } } }, CPlace { inner: Addr(Pointer { base: Stack(ss2), offset: Offset32(0) }, None), layout: TyAndLayout { ty: std::task::Context<'_>, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Scalar(Initialized { value: Pointer, valid_range: 1..=18446744073709551615 }), fields: Arbitrary { offsets: [Size(0 bytes), Size(0 bytes)], memory_index: [1, 0] }, largest_niche: Some(Niche { offset: Size(0 bytes), value: Pointer, valid_range: 1..=18446744073709551615 }), variants: Single { index: 0 } } } }, CPlace { inner: Var(_6, var1), layout: TyAndLayout { ty: &std::task::Waker, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Scalar(Initialized { value: Pointer, valid_range: 1..=18446744073709551615 }), fields: Primitive, largest_niche: Some(Niche { offset: Size(0 bytes), value: Pointer, valid_range: 1..=18446744073709551615 }), variants: Single { index: 0 } } } }, CPlace { inner: Var(_7, var2), layout: TyAndLayout { ty: &std::task::Waker, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Scalar(Initialized { value: Pointer, valid_range: 1..=18446744073709551615 }), fields: Primitive, largest_niche: Some(Niche { offset: Size(0 bytes), value: Pointer, valid_range: 1..=18446744073709551615 }), variants: Single { index: 0 } } } }, CPlace { inner: Addr(Pointer { base: Stack(ss3), offset: Offset32(0) }, None), layout: TyAndLayout { ty: std::pin::Pin<std::boxed::Box<[async fn body@414d5aaf5cc7cfa317e6c363af8adbb1ca8c204c.rs:6:42: 8:2]>>, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Scalar(Initialized { value: Pointer, valid_range: 1..=18446744073709551615 }), fields: Arbitrary { offsets: [Size(0 bytes)], memory_index: [0] }, largest_niche: Some(Niche { offset: Size(0 bytes), value: Pointer, valid_range: 1..=18446744073709551615 }), variants: Single { index: 0 } } } }, CPlace { inner: Addr(Pointer { base: Stack(ss4), offset: Offset32(0) }, None), layout: TyAndLayout { ty: [async fn body@414d5aaf5cc7cfa317e6c363af8adbb1ca8c204c.rs:6:42: 8:2], layout: Layout { size: Size(16 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Aggregate { sized: true }, fields: Arbitrary { offsets: [Size(0 bytes), Size(8 bytes), Size(12 bytes)], memory_index: [0, 1, 2] }, largest_niche: Some(Niche { offset: Size(12 bytes), value: Int(I8, false), valid_range: 0..=2 }), variants: Multiple { tag: Initialized { value: Int(I8, false), valid_range: 0..=2 }, tag_encoding: Direct, tag_field: 2, variants: [Layout { size: Size(16 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Aggregate { sized: true }, fields: Arbitrary { offsets: [], memory_index: [] }, largest_niche: None, variants: Single { index: 0 } }, Layout { size: Size(16 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Aggregate { sized: true }, fields: Arbitrary { offsets: [], memory_index: [] }, largest_niche: None, variants: Single { index: 1 } }, Layout { size: Size(16 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Aggregate { sized: true }, fields: Arbitrary { offsets: [], memory_index: [] }, largest_niche: None, variants: Single { index: 2 } }] } } } }, CPlace { inner: Addr(Pointer { base: Stack(ss5), offset: Offset32(0) }, None), layout: TyAndLayout { ty: std::task::Poll<u32>, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(4 bytes), pref: Align(8 bytes) }, abi: ScalarPair(Initialized { value: Int(I32, false), valid_range: 0..=1 }, Union { value: Int(I32, false) }), fields: Arbitrary { offsets: [Size(0 bytes)], memory_index: [0] }, largest_niche: Some(Niche { offset: Size(0 bytes), value: Int(I32, false), valid_range: 0..=1 }), variants: Multiple { tag: Initialized { value: Int(I32, false), valid_range: 0..=1 }, tag_encoding: Direct, tag_field: 0, variants: [Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(4 bytes), pref: Align(8 bytes) }, abi: ScalarPair(Initialized { value: Int(I32, false), valid_range: 0..=1 }, Union { value: Int(I32, false) }), fields: Arbitrary { offsets: [Size(4 bytes)], memory_index: [0] }, largest_niche: None, variants: Single { index: 0 } }, Layout { size: Size(4 bytes), align: AbiAndPrefAlign { abi: Align(1 bytes), pref: Align(8 bytes) }, abi: Aggregate { sized: true }, fields: Arbitrary { offsets: [], memory_index: [] }, largest_niche: None, variants: Single { index: 1 } }] } } } }, CPlace { inner: Addr(Pointer { base: Stack(ss6), offset: Offset32(0) }, None), layout: TyAndLayout { ty: std::pin::Pin<&mut [async fn body@414d5aaf5cc7cfa317e6c363af8adbb1ca8c204c.rs:6:42: 8:2]>, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Scalar(Initialized { value: Pointer, valid_range: 1..=18446744073709551615 }), fields: Arbitrary { offsets: [Size(0 bytes)], memory_index: [0] }, largest_niche: Some(Niche { offset: Size(0 bytes), value: Pointer, valid_range: 1..=18446744073709551615 }), variants: Single { index: 0 } } } }, CPlace { inner: Var(_12, var3), layout: TyAndLayout { ty: &mut std::pin::Pin<std::boxed::Box<[async fn body@414d5aaf5cc7cfa317e6c363af8adbb1ca8c204c.rs:6:42: 8:2]>>, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Scalar(Initialized { value: Pointer, valid_range: 1..=18446744073709551615 }), fields: Primitive, largest_niche: Some(Niche { offset: Size(0 bytes), value: Pointer, valid_range: 1..=18446744073709551615 }), variants: Single { index: 0 } } } }, CPlace { inner: Var(_13, var4), layout: TyAndLayout { ty: &mut std::task::Context<'_>, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Scalar(Initialized { value: Pointer, valid_range: 1..=18446744073709551615 }), fields: Primitive, largest_niche: Some(Niche { offset: Size(0 bytes), value: Pointer, valid_range: 1..=18446744073709551615 }), variants: Single { index: 0 } } } }, CPlace { inner: Addr(Pointer { base: Stack(ss7), offset: Offset32(0) }, None), layout: TyAndLayout { ty: &mut std::task::Context<'_>, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Scalar(Initialized { value: Pointer, valid_range: 1..=18446744073709551615 }), fields: Primitive, largest_niche: Some(Niche { offset: Size(0 bytes), value: Pointer, valid_range: 1..=18446744073709551615 }), variants: Single { index: 0 } } } }, CPlace { inner: Var(_15, var5), layout: TyAndLayout { ty: isize, layout: Layout { size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(8 bytes), pref: Align(8 bytes) }, abi: Scalar(Initialized { value: Int(I64, true), valid_range: 0..=18446744073709551615 }), fields: Primitive, largest_niche: None, variants: Single { index: 0 } } } }, CPlace { inner: Var(_16, var6), layout: TyAndLayout { ty: bool, layout: Layout { size: Size(1 bytes), align: AbiAndPrefAlign { abi: Align(1 bytes), pref: Align(1 bytes) }, abi: Scalar(Initialized { value: Int(I8, false), valid_range: 0..=1 }), fields: Primitive, largest_niche: Some(Niche { offset: Size(0 bytes), value: Int(I8, false), valid_range: 0..=1 }), variants: Single { index: 0 } } } }]

function u0:5(i64) -> i32 system_v {
    ss0 = explicit_slot 16
    ss1 = explicit_slot 16
    ss2 = explicit_slot 16
    ss3 = explicit_slot 16
    ss4 = explicit_slot 16
    ss5 = explicit_slot 16
    ss6 = explicit_slot 16
    ss7 = explicit_slot 16
    sig0 = () -> i64 system_v
    sig1 = (i64) -> i64, i64 system_v
    sig2 = (i64) -> i64 system_v
    sig3 = (i64) -> i64 system_v
    sig4 = (i64) -> i64 system_v
    sig5 = (i64, i64) -> i32, i32 system_v
    fn0 = u0:14 sig0
    fn1 = u0:15 sig1
    fn2 = u0:16 sig2
    fn3 = colocated u0:2 sig3
    fn4 = colocated u0:0 sig4
    fn5 = colocated u0:4 sig5

block0(v0: i64):
    nop
    jump block1

block1:
    nop
    v1 = iconst.i8 0
    v2 = iconst.i8 1
    v3 = call fn0()
    stack_store v3, ss1
    jump block2

block2:
    nop
    v4 = stack_load.i64 ss1
    v5, v6 = call fn1(v4)
    stack_store v5, ss0
    stack_store v6, ss0+8
    jump block3

block3:
    nop
    v7 = stack_addr.i64 ss0
    v8 = call fn2(v7)
    stack_store v8, ss2
    jump block4

block4:
    nop
    v9 = iconst.i8 0
    v10 = stack_addr.i64 ss4
    v11 = load.i64 notrap aligned v0
    v12 = load.i64 notrap aligned v0+8
    store notrap aligned v11, v10
    store notrap aligned v12, v10+8
    v13 = stack_addr.i64 ss4
    v14 = call fn3(v13)
    stack_store v14, ss3
    jump block18

block5:
    nop
    v15 = stack_addr.i64 ss3
    v16 = call fn4(v15)
    stack_store v16, ss6
    jump block6

block6:
    nop
    v17 = stack_addr.i64 ss2
    stack_store v17, ss7
    v18 = stack_load.i64 ss7
    v19 = stack_load.i64 ss6
}

', src/abi/pass_mode.rs:224:5
stack backtrace:
   0:     0x7ff821766bf4 - std::backtrace_rs::backtrace::libunwind::trace::h4c97bf25d2e51ae8
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7ff821766bf4 - std::backtrace_rs::backtrace::trace_unsynchronized::h37aa0c666953359e
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7ff821766bf4 - std::sys_common::backtrace::_print_fmt::hda9969f991ffe421
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7ff821766bf4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h43dbafa239606d9e
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7ff8217e4d58 - core::fmt::write::hd8b1d49ea978e1a7
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1208:17
   5:     0x7ff821726b8f - std::io::Write::write_fmt::h910d70db5835b5b3
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/io/mod.rs:1682:15
   6:     0x7ff8217669f5 - std::sys_common::backtrace::_print::hba0af3cc8e4f9e16
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7ff8217669f5 - std::sys_common::backtrace::print::hcb425016d7f50579
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7ff82174e194 - std::panicking::default_hook::{{closure}}::h5a92231480ffed71
   9:     0x7ff82174deb6 - std::panicking::default_hook::h6128a4fdcff47458
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:286:9
  10:     0x7ff8242f56e2 - <alloc[8442e47aebcde8b2]::boxed::Box<dyn for<'a, 'b> core[a28e3aee1dd4a69e]::ops::function::Fn<(&'a core[a28e3aee1dd4a69e]::panic::panic_info::PanicInfo<'b>,), Output = ()> + core[a28e3aee1dd4a69e]::marker::Sync + core[a28e3aee1dd4a69e]::marker::Send> as core[a28e3aee1dd4a69e]::ops::function::Fn<(&core[a28e3aee1dd4a69e]::panic::panic_info::PanicInfo,)>>::call
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2032:9
  11:     0x7ff8242f56e2 - rustc_driver[8fc0c60c2a79a876]::DEFAULT_HOOK::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:1202:13
  12:     0x7ff82174e947 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haf9ff6e68c2e05a7
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2032:9
  13:     0x7ff82174e947 - std::panicking::rust_panic_with_hook::h0207dd496e646917
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:692:13
  14:     0x7ff821767e39 - std::panicking::begin_panic_handler::{{closure}}::h4f3167dde486c20a
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:579:13
  15:     0x7ff821766d3e - std::sys_common::backtrace::__rust_end_short_backtrace::h5667162f671b6d90
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:137:18
  16:     0x7ff82174e432 - rust_begin_unwind
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:575:5
  17:     0x7ff8217e93f3 - core::panicking::panic_fmt::h90dee617596c399d
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:64:14
  18:     0x7ff8217e99b3 - core::panicking::assert_failed_inner::hd73710e7d07dae9a
  19:     0x7ff81b0eab89 - core[a28e3aee1dd4a69e]::panicking::assert_failed::<rustc_middle[e9b4372b5e8bc47d]::ty::Ty, rustc_middle[e9b4372b5e8bc47d]::ty::Ty>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:199:5
  20:     0x7ff81b11a0e6 - rustc_codegen_cranelift[e80a840dcfedcc0]::value_and_place::assert_assignable
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/value_and_place.rs:931:13
  21:     0x7ff81b149583 - rustc_codegen_cranelift[e80a840dcfedcc0]::abi::pass_mode::adjust_arg_for_abi
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/abi/pass_mode.rs:224:5
  22:     0x7ff81b0c6ca6 - rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/abi/mod.rs:519:25
  23:     0x7ff81b0c6ca6 - <&mut rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0} as core[a28e3aee1dd4a69e]::ops::function::FnOnce<((usize, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument),)>>::call_once
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/ops/function.rs:629:13
  24:     0x7ff81b0c6ca6 - <core[a28e3aee1dd4a69e]::option::Option<(usize, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument)>>::map::<smallvec[72e9d56594538b7e]::IntoIter<[cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value; 2usize]>, &mut rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/option.rs:969:29
  25:     0x7ff81b0c6ca6 - <core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::next
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/map.rs:103:9
  26:     0x7ff81b0c6ca6 - <core[a28e3aee1dd4a69e]::iter::adapters::fuse::Fuse<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>> as core[a28e3aee1dd4a69e]::iter::adapters::fuse::FuseImpl<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>>>::next
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/fuse.rs:337:9
  27:     0x7ff81b0c6ca6 - <core[a28e3aee1dd4a69e]::iter::adapters::fuse::Fuse<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::next
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/fuse.rs:43:9
  28:     0x7ff81b0c6ca6 - <core[a28e3aee1dd4a69e]::iter::adapters::flatten::FlattenCompat<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>, smallvec[72e9d56594538b7e]::IntoIter<[cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value; 2usize]>> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::next
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/flatten.rs:474:19
  29:     0x7ff81b0c6ca6 - <core[a28e3aee1dd4a69e]::iter::adapters::flatten::Flatten<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::next
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/flatten.rs:212:9
  30:     0x7ff81b0c6ca6 - <core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>, core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>, core[a28e3aee1dd4a69e]::iter::adapters::flatten::Flatten<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>>> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::next::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/chain.rs:50:67
  31:     0x7ff81b0c6ca6 - <core[a28e3aee1dd4a69e]::option::Option<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>::or_else::<<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>, core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>, core[a28e3aee1dd4a69e]::iter::adapters::flatten::Flatten<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>>> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::next::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/option.rs:1417:21
  32:     0x7ff81b0c6ca6 - <core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>, core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>, core[a28e3aee1dd4a69e]::iter::adapters::flatten::Flatten<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>>> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::next
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/chain.rs:50:9
  33:     0x7ff81b0c5b5b - <alloc[8442e47aebcde8b2]::vec::Vec<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>::extend_desugared::<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>, core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>, core[a28e3aee1dd4a69e]::iter::adapters::flatten::Flatten<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>>>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/mod.rs:2848:35
  34:     0x7ff81b0c5b5b - <alloc[8442e47aebcde8b2]::vec::Vec<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value> as alloc[8442e47aebcde8b2]::vec::spec_extend::SpecExtend<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value, core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>, core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>, core[a28e3aee1dd4a69e]::iter::adapters::flatten::Flatten<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>>>>>::spec_extend
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/spec_extend.rs:17:9
  35:     0x7ff81b0c5b5b - <alloc[8442e47aebcde8b2]::vec::Vec<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value> as alloc[8442e47aebcde8b2]::vec::spec_from_iter_nested::SpecFromIterNested<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value, core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>, core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>, core[a28e3aee1dd4a69e]::iter::adapters::flatten::Flatten<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>>>>>::from_iter
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/spec_from_iter_nested.rs:43:9
  36:     0x7ff81b0c5b5b - <alloc[8442e47aebcde8b2]::vec::Vec<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value> as alloc[8442e47aebcde8b2]::vec::spec_from_iter::SpecFromIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value, core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>, core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>, core[a28e3aee1dd4a69e]::iter::adapters::flatten::Flatten<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>>>>>::from_iter
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/spec_from_iter.rs:33:9
  37:     0x7ff81b0d3f57 - <alloc[8442e47aebcde8b2]::vec::Vec<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value> as core[a28e3aee1dd4a69e]::iter::traits::collect::FromIterator<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>::from_iter::<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>, core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>, core[a28e3aee1dd4a69e]::iter::adapters::flatten::Flatten<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>>>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/mod.rs:2748:9
  38:     0x7ff81b0d3f57 - <core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::iter::adapters::chain::Chain<core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>, core[a28e3aee1dd4a69e]::option::IntoIter<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>, core[a28e3aee1dd4a69e]::iter::adapters::flatten::Flatten<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::iter::adapters::skip::Skip<core[a28e3aee1dd4a69e]::iter::adapters::enumerate::Enumerate<alloc[8442e47aebcde8b2]::vec::into_iter::IntoIter<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::CallArgument>>>, rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}::{closure#0}>>> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::collect::<alloc[8442e47aebcde8b2]::vec::Vec<cranelift_codegen[21a3c5039a2890c6]::ir::entities::Value>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:1837:9
  39:     0x7ff81b0d3f57 - rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/abi/mod.rs:511:25
  40:     0x7ff81b0d3f57 - rustc_codegen_cranelift[e80a840dcfedcc0]::abi::returning::codegen_with_call_return_arg::<rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call::{closure#4}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/abi/returning.rs:81:21
  41:     0x7ff81b12b4bf - rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/abi/mod.rs:510:5
  42:     0x7ff81b0995a7 - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body::{closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:433:21
  43:     0x7ff81b0995a7 - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body::{closure#2}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  44:     0x7ff81b0995a7 - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body::{closure#2}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  45:     0x7ff81b17bbb0 - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:432:17
  46:     0x7ff81b17a0ee - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn::{closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:115:41
  47:     0x7ff81b17a0ee - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn::{closure#2}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  48:     0x7ff81b17a0ee - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn::{closure#2}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  49:     0x7ff81b17a0ee - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:115:5
  50:     0x7ff81b098889 - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:294:50
  51:     0x7ff81b098889 - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  52:     0x7ff81b098889 - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  53:     0x7ff81b098889 - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:293:21
  54:     0x7ff81b098889 - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<(alloc[8442e47aebcde8b2]::string::String, rustc_codegen_cranelift[e80a840dcfedcc0]::CodegenCx, cranelift_object[c5896af7f33dfa77]::backend::ObjectModule, alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::base::CodegenedFunction>), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  55:     0x7ff81b098889 - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<(alloc[8442e47aebcde8b2]::string::String, rustc_codegen_cranelift[e80a840dcfedcc0]::CodegenCx, cranelift_object[c5896af7f33dfa77]::backend::ObjectModule, alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::base::CodegenedFunction>), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  56:     0x7ff81b184ae9 - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:275:63
  57:     0x7ff81b0e4b96 - <rustc_query_system[ac6d26d16f7ebea6]::dep_graph::graph::DepGraph<rustc_middle[e9b4372b5e8bc47d]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[e9b4372b5e8bc47d]::ty::context::TyCtxt, (rustc_codegen_cranelift[e80a840dcfedcc0]::config::BackendConfig, alloc[8442e47aebcde8b2]::sync::Arc<rustc_codegen_cranelift[e80a840dcfedcc0]::global_asm::GlobalAsmConfig>, rustc_span[8293014313a13715]::symbol::Symbol, rustc_codegen_cranelift[e80a840dcfedcc0]::concurrency_limiter::ConcurrencyLimiterToken), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/dep_graph/graph.rs:296:14
  58:     0x7ff81b0fbcbd - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:391:25
  59:     0x7ff81b0fbcbd - core[a28e3aee1dd4a69e]::iter::adapters::map::map_fold::<&rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, (), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator::for_each::call<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::extend_trusted<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>::{closure#0}>::{closure#0}>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/map.rs:84:28
  60:     0x7ff81b0fbcbd - <core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::fold::<(), core[a28e3aee1dd4a69e]::iter::adapters::map::map_fold<&rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, (), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator::for_each::call<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::extend_trusted<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>::{closure#0}>::{closure#0}>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:2415:21
  61:     0x7ff81b0fbcbd - <core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::fold::<(), core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator::for_each::call<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::extend_trusted<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>::{closure#0}>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/map.rs:124:9
  62:     0x7ff81b0c491c - <core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::for_each::<<alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::extend_trusted<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:831:9
  63:     0x7ff81b0c491c - <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::extend_trusted::<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/mod.rs:2880:17
  64:     0x7ff81b0c491c - <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen> as alloc[8442e47aebcde8b2]::vec::spec_extend::SpecExtend<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>>::spec_extend
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/spec_extend.rs:26:9
  65:     0x7ff81b0c491c - <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen> as alloc[8442e47aebcde8b2]::vec::spec_from_iter_nested::SpecFromIterNested<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>>::from_iter
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/spec_from_iter_nested.rs:62:9
  66:     0x7ff81b0c491c - <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen> as alloc[8442e47aebcde8b2]::vec::spec_from_iter::SpecFromIter<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>>::from_iter
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/spec_from_iter.rs:33:9
  67:     0x7ff81b1061fe - <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen> as core[a28e3aee1dd4a69e]::iter::traits::collect::FromIterator<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::from_iter::<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/mod.rs:2748:9
  68:     0x7ff81b1061fe - <core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::collect::<alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:1837:9
  69:     0x7ff81b1061fe - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:379:9
  70:     0x7ff81b1061fe - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  71:     0x7ff81b1061fe - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  72:     0x7ff81b1061fe - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::time::<alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/mod.rs:52:9
  73:     0x7ff81b185209 - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:378:19
  74:     0x7ff81b1a3d4e - <rustc_codegen_cranelift[e80a840dcfedcc0]::CraneliftCodegenBackend as rustc_codegen_ssa[c9ce47c339d57daf]::traits::backend::CodegenBackend>::codegen_crate
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/lib.rs:205:33
  75:     0x7ff824f5c97b - rustc_interface[65631d9f41be80b3]::passes::start_codegen::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:989:9
  76:     0x7ff824f5c97b - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_interface[65631d9f41be80b3]::passes::start_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  77:     0x7ff824f5c97b - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_interface[65631d9f41be80b3]::passes::start_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  78:     0x7ff824f5c97b - rustc_interface[65631d9f41be80b3]::passes::start_codegen
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:988:19
  79:     0x7ff824f5b85e - <rustc_interface[65631d9f41be80b3]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:253:20
  80:     0x7ff824f5b85e - <rustc_interface[65631d9f41be80b3]::passes::QueryContext>::enter::<<rustc_interface[65631d9f41be80b3]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:765:42
  81:     0x7ff824f5b85e - rustc_middle[e9b4372b5e8bc47d]::ty::context::tls::enter_context::<<rustc_interface[65631d9f41be80b3]::passes::QueryContext>::enter<<rustc_interface[65631d9f41be80b3]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context.rs:1311:50
  82:     0x7ff824f5b85e - rustc_middle[e9b4372b5e8bc47d]::ty::context::tls::set_tlv::<rustc_middle[e9b4372b5e8bc47d]::ty::context::tls::enter_context<<rustc_interface[65631d9f41be80b3]::passes::QueryContext>::enter<<rustc_interface[65631d9f41be80b3]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context.rs:1295:9
  83:     0x7ff824f5b85e - rustc_middle[e9b4372b5e8bc47d]::ty::context::tls::enter_context::<<rustc_interface[65631d9f41be80b3]::passes::QueryContext>::enter<<rustc_interface[65631d9f41be80b3]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context.rs:1311:9
  84:     0x7ff824f5b85e - <rustc_interface[65631d9f41be80b3]::passes::QueryContext>::enter::<<rustc_interface[65631d9f41be80b3]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:765:9
  85:     0x7ff824fed71a - <rustc_interface[65631d9f41be80b3]::queries::Queries>::ongoing_codegen::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:240:13
  86:     0x7ff824fed71a - <core[a28e3aee1dd4a69e]::option::Option<core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>>::get_or_insert_with::<<rustc_interface[65631d9f41be80b3]::queries::Queries>::ongoing_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/option.rs:1590:49
<snip>
@bjorn3
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bjorn3 commented Dec 20, 2022

This is because of the revert of rust-lang/rust#105250. @Swatinem is working on an alternative fix.

@Swatinem Swatinem mentioned this issue Dec 20, 2022
Merged
matthiaskrgr referenced this issue in matthiaskrgr/rust Jan 18, 2023
@matthiaskrgr
Rollup merge of rust-lang#105977 - Swatinem:async-mir-context, r=oli-obk
e538945 
Transform async `ResumeTy` in generator transform

- Eliminates all the `get_context` calls that async lowering created.
- Replace all `Local` `ResumeTy` types with `&mut Context<'_>`.

The `Local`s that have their types replaced are:
- The `resume` argument itself.
- The argument to `get_context`.
- The yielded value of a `yield`.

The `ResumeTy` hides a `&mut Context<'_>` behind an unsafe raw pointer, and the `get_context` function is being used to convert that back to a `&mut Context<'_>`.

Ideally the async lowering would not use the `ResumeTy`/`get_context` indirection, but rather directly use `&mut Context<'_>`, however that would currently lead to higher-kinded lifetime errors.
See <rust-lang#105501>.

The async lowering step and the type / lifetime inference / checking are still using the `ResumeTy` indirection for the time being, and that indirection is removed here. After this transform, the generator body only knows about `&mut Context<'_>`.

---

Fixes https://github.com/bjorn3/rustc_codegen_cranelift/issues/1330 CC `@bjorn3`

r? `@compiler-errors`
GuillaumeGomez referenced this issue in GuillaumeGomez/rust Jan 19, 2023
@GuillaumeGomez
Rollup merge of rust-lang#105977 - Swatinem:async-mir-context, r=oli-obk
30ddeef 
Transform async `ResumeTy` in generator transform

- Eliminates all the `get_context` calls that async lowering created.
- Replace all `Local` `ResumeTy` types with `&mut Context<'_>`.

The `Local`s that have their types replaced are:
- The `resume` argument itself.
- The argument to `get_context`.
- The yielded value of a `yield`.

The `ResumeTy` hides a `&mut Context<'_>` behind an unsafe raw pointer, and the `get_context` function is being used to convert that back to a `&mut Context<'_>`.

Ideally the async lowering would not use the `ResumeTy`/`get_context` indirection, but rather directly use `&mut Context<'_>`, however that would currently lead to higher-kinded lifetime errors.
See <rust-lang#105501>.

The async lowering step and the type / lifetime inference / checking are still using the `ResumeTy` indirection for the time being, and that indirection is removed here. After this transform, the generator body only knows about `&mut Context<'_>`.

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Fixes https://github.com/bjorn3/rustc_codegen_cranelift/issues/1330 CC `@bjorn3`

r? `@compiler-errors`
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bjorn3 commented Feb 19, 2023

This is now fixed.

@bjorn3 bjorn3 closed this as completed Feb 19, 2023
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Transform async ResumeTy in generator transform Swatinem/rust
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@matthiaskrgr @bjorn3