ICE: Could not resolve Lifetime

[matthiaskrgr]

auto-reduced (treereduce-rust):

impl Struct {
    async fn box_box_ref_Struct(self: Box<Box<Self, impl FnMut(&mut Self)>>) -> &u32 {
        f
    }
}

original:

//@ edition:2018

#![rustc_on_unimplemented(on(x="y"), message="y")]

use std::pin::Pin;

struct Struct { }

impl Struct {
    // Test using `&mut Struct` explicitly:

    async fn ref_Struct(self: &mut Struct, f: &u32) -> &u32 {
        f
        //~^ ERROR lifetime may not live long enough
    }

    async fn box_ref_Struct(self: Box<&mut Struct>, f: &u32) -> &u32 {
        f
        //~^ ERROR lifetime may not live long enough
    }

    async fn pin_ref_Struct(self: Pin<&mut Struct>, bar_inlined_always: &u32) -> &u32 {
        f
        //~^ ERROR lifetime may not live long enough
    }

    async fn box_box_ref_Struct(self: Box<Box<Self, impl FnMut(&mut Self)>>, f: &(1u32 >> 32)) -> &u32 {
        f
        //~^ ERROR lifetime may not live long enough
    }

    async fn box_pin_ref_Struct(self: Box<DemoNoDef<&mut Struct>>, f: &u32) -> &u32 {
        f
        //~^ ERROR lifetime may not live long enough
    }
}

fn main() { }

Version information

rustc 1.78.0-nightly (6dadb6eb2 2024-02-23)
binary: rustc
commit-hash: 6dadb6eb23e7719da4e372d3e13d50282323d022
commit-date: 2024-02-23
host: x86_64-unknown-linux-gnu
release: 1.78.0-nightly
LLVM version: 18.1.0

Command:
/home/matthias/.rustup/toolchains/master/bin/rustc

Program output

error[E0670]: `async fn` is not permitted in Rust 2015
 --> /tmp/icemaker_global_tempdir.YABn6SpLAh6p/rustc_testrunner_tmpdir_reporting.T1oCLmcoChXJ/mvce.rs:2:5
  |
2 |     async fn box_box_ref_Struct(self: Box<Box<Self, impl FnMut(&mut Self)>>) -> &u32 {
  |     ^^^^^ to use `async fn`, switch to Rust 2018 or later
  |
  = help: pass `--edition 2021` to `rustc`
  = note: for more on editions, read https://doc.rust-lang.org/edition-guide

error[E0412]: cannot find type `Struct` in this scope
 --> /tmp/icemaker_global_tempdir.YABn6SpLAh6p/rustc_testrunner_tmpdir_reporting.T1oCLmcoChXJ/mvce.rs:1:6
  |
1 | impl Struct {
  |      ^^^^^^ not found in this scope

error[E0425]: cannot find value `f` in this scope
 --> /tmp/icemaker_global_tempdir.YABn6SpLAh6p/rustc_testrunner_tmpdir_reporting.T1oCLmcoChXJ/mvce.rs:3:9
  |
3 |         f
  |         ^ not found in this scope

error[E0601]: `main` function not found in crate `mvce`
 --> /tmp/icemaker_global_tempdir.YABn6SpLAh6p/rustc_testrunner_tmpdir_reporting.T1oCLmcoChXJ/mvce.rs:5:2
  |
5 | }
  |  ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.YABn6SpLAh6p/rustc_testrunner_tmpdir_reporting.T1oCLmcoChXJ/mvce.rs`

error: internal compiler error: Could not resolve Lifetime { hir_id: HirId(DefId(0:8 ~ mvce[fea7]::{impl#0}::box_box_ref_Struct::{opaque#0}).1), ident: '_#0, res: Param(DefId(0:7 ~ mvce[fea7]::{impl#0}::box_box_ref_Struct::'_)) } in scope Supertrait {
                                    bound_vars: [],
                                    s: ObjectLifetimeDefault {
                                        lifetime: Some(
                                            StaticLifetime,
                                        ),
                                        s: Binder {
                                            bound_vars: {},
                                            scope_type: Normal,
                                            hir_id: HirId(DefId(0:8 ~ mvce[fea7]::{impl#0}::box_box_ref_Struct::{opaque#0}).7),
                                            s: TraitRefBoundary {
                                                s: Binder {
                                                    bound_vars: {},
                                                    scope_type: Normal,
                                                    hir_id: HirId(DefId(0:8 ~ mvce[fea7]::{impl#0}::box_box_ref_Struct::{opaque#0}).0),
                                                    s: Root {
                                                        opt_parent_item: Some(
                                                            DefId(0:4 ~ mvce[fea7]::{impl#0}::box_box_ref_Struct),
                                                        ),
                                                    },
                                                    where_bound_origin: None,
                                                },
                                            },
                                            where_bound_origin: None,
                                        },
                                    },
                                }
 --> /tmp/icemaker_global_tempdir.YABn6SpLAh6p/rustc_testrunner_tmpdir_reporting.T1oCLmcoChXJ/mvce.rs:2:82
  |
2 |     async fn box_box_ref_Struct(self: Box<Box<Self, impl FnMut(&mut Self)>>) -> &u32 {
  |                                                                                  ^

thread 'rustc' panicked at compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs:1334:24:
Box<dyn Any>
stack backtrace:
   0:     0x7fb33f3b6af6 - std::backtrace_rs::backtrace::libunwind::trace::ha65d3ff76184bc87
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
   1:     0x7fb33f3b6af6 - std::backtrace_rs::backtrace::trace_unsynchronized::hf7ea96d3ce514b82
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fb33f3b6af6 - std::sys_common::backtrace::_print_fmt::hfd298e4a770e9899
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/std/src/sys_common/backtrace.rs:68:5
   3:     0x7fb33f3b6af6 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2323338a86fc81c9
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fb33f407a7c - core::fmt::rt::Argument::fmt::h157eaeeeb24bb72e
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/core/src/fmt/rt.rs:142:9
   5:     0x7fb33f407a7c - core::fmt::write::heaac4748a4770443
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/core/src/fmt/mod.rs:1120:17
   6:     0x7fb33f3ab4bf - std::io::Write::write_fmt::h9259032badca1042
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/std/src/io/mod.rs:1846:15
   7:     0x7fb33f3b68a4 - std::sys_common::backtrace::_print::hc92d5e2a4404e26e
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7fb33f3b68a4 - std::sys_common::backtrace::print::ha2a94ce768edf33a
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7fb33f3b95eb - std::panicking::default_hook::{{closure}}::h76871112b9e556f7
  10:     0x7fb33f3b9339 - std::panicking::default_hook::hf74de90c4b5df7a9
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/std/src/panicking.rs:292:9
  11:     0x7fb33c073c9c - std[dd5750cd74b4d211]::panicking::update_hook::<alloc[3a2d298fa1f4f8a8]::boxed::Box<rustc_driver_impl[c7e2e991238ea07f]::install_ice_hook::{closure#0}>>::{closure#0}
  12:     0x7fb33f3b9d50 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb795ef914b920bc4
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/alloc/src/boxed.rs:2030:9
  13:     0x7fb33f3b9d50 - std::panicking::rust_panic_with_hook::h098a2e3444b7237d
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/std/src/panicking.rs:786:13
  14:     0x7fb33c0a07e4 - std[dd5750cd74b4d211]::panicking::begin_panic::<rustc_errors[fcc6779dd83e2b71]::ExplicitBug>::{closure#0}
  15:     0x7fb33c09d706 - std[dd5750cd74b4d211]::sys_common::backtrace::__rust_end_short_backtrace::<std[dd5750cd74b4d211]::panicking::begin_panic<rustc_errors[fcc6779dd83e2b71]::ExplicitBug>::{closure#0}, !>
  16:     0x7fb33c09d3e6 - std[dd5750cd74b4d211]::panicking::begin_panic::<rustc_errors[fcc6779dd83e2b71]::ExplicitBug>
  17:     0x7fb33aa17a71 - <rustc_errors[fcc6779dd83e2b71]::diagnostic::BugAbort as rustc_errors[fcc6779dd83e2b71]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
  18:     0x7fb33a7b0f54 - <rustc_hir_analysis[79e63f47d465cd1b]::collect::resolve_bound_vars::BoundVarContext as rustc_hir[9f3737e52b7f217]::intravisit::Visitor>::visit_lifetime
  19:     0x7fb33a7a9c6e - <rustc_hir_analysis[79e63f47d465cd1b]::collect::resolve_bound_vars::BoundVarContext as rustc_hir[9f3737e52b7f217]::intravisit::Visitor>::visit_ty
  20:     0x7fb33a7aeb30 - <rustc_hir_analysis[79e63f47d465cd1b]::collect::resolve_bound_vars::BoundVarContext as rustc_hir[9f3737e52b7f217]::intravisit::Visitor>::visit_path
  21:     0x7fb33db924ef - <rustc_hir_analysis[79e63f47d465cd1b]::collect::resolve_bound_vars::BoundVarContext>::visit_poly_trait_ref_inner
  22:     0x7fb33dd100ae - rustc_hir[9f3737e52b7f217]::intravisit::walk_item::<rustc_hir_analysis[79e63f47d465cd1b]::collect::resolve_bound_vars::BoundVarContext>
  23:     0x7fb33dd0f1b8 - <rustc_hir_analysis[79e63f47d465cd1b]::collect::resolve_bound_vars::BoundVarContext as rustc_hir[9f3737e52b7f217]::intravisit::Visitor>::visit_item
  24:     0x7fb33db8f58a - rustc_hir_analysis[79e63f47d465cd1b]::collect::resolve_bound_vars::resolve_bound_vars
  25:     0x7fb33db8f131 - rustc_query_impl[57e36b29e5bd967b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[57e36b29e5bd967b]::query_impl::resolve_bound_vars::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e10bafab6a476256]::query::erase::Erased<[u8; 8usize]>>
  26:     0x7fb33d67fa23 - rustc_query_system[2e43c3a675bb3873]::query::plumbing::try_execute_query::<rustc_query_impl[57e36b29e5bd967b]::DynamicConfig<rustc_query_system[2e43c3a675bb3873]::query::caches::VecCache<rustc_hir[9f3737e52b7f217]::hir_id::OwnerId, rustc_middle[e10bafab6a476256]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[57e36b29e5bd967b]::plumbing::QueryCtxt, false>
  27:     0x7fb33d67f54c - rustc_query_impl[57e36b29e5bd967b]::query_impl::resolve_bound_vars::get_query_non_incr::__rust_end_short_backtrace
  28:     0x7fb33d67f2cd - rustc_query_impl[57e36b29e5bd967b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[57e36b29e5bd967b]::query_impl::late_bound_vars_map::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e10bafab6a476256]::query::erase::Erased<[u8; 8usize]>>
  29:     0x7fb33d67fa23 - rustc_query_system[2e43c3a675bb3873]::query::plumbing::try_execute_query::<rustc_query_impl[57e36b29e5bd967b]::DynamicConfig<rustc_query_system[2e43c3a675bb3873]::query::caches::VecCache<rustc_hir[9f3737e52b7f217]::hir_id::OwnerId, rustc_middle[e10bafab6a476256]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[57e36b29e5bd967b]::plumbing::QueryCtxt, false>
  30:     0x7fb33d75654c - rustc_query_impl[57e36b29e5bd967b]::query_impl::late_bound_vars_map::get_query_non_incr::__rust_end_short_backtrace
  31:     0x7fb33d756731 - <rustc_middle[e10bafab6a476256]::ty::context::TyCtxt>::late_bound_vars
  32:     0x7fb33df8060a - <dyn rustc_hir_analysis[79e63f47d465cd1b]::astconv::AstConv>::instantiate_poly_trait_ref
  33:     0x7fb33df7d57c - <dyn rustc_hir_analysis[79e63f47d465cd1b]::astconv::AstConv>::compute_bounds
  34:     0x7fb33df2ada2 - rustc_hir_analysis[79e63f47d465cd1b]::collect::item_bounds::opaque_type_bounds
  35:     0x7fb33df296f1 - rustc_hir_analysis[79e63f47d465cd1b]::collect::item_bounds::explicit_item_bounds
  36:     0x7fb33df28867 - rustc_query_impl[57e36b29e5bd967b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[57e36b29e5bd967b]::query_impl::explicit_item_bounds::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e10bafab6a476256]::query::erase::Erased<[u8; 16usize]>>
  37:     0x7fb33df28831 - <rustc_query_impl[57e36b29e5bd967b]::query_impl::explicit_item_bounds::dynamic_query::{closure#2} as core[169382930dc0d056]::ops::function::FnOnce<(rustc_middle[e10bafab6a476256]::ty::context::TyCtxt, rustc_span[ba27dc81bf59733]::def_id::DefId)>>::call_once
  38:     0x7fb33d75e480 - rustc_query_system[2e43c3a675bb3873]::query::plumbing::try_execute_query::<rustc_query_impl[57e36b29e5bd967b]::DynamicConfig<rustc_query_system[2e43c3a675bb3873]::query::caches::DefIdCache<rustc_middle[e10bafab6a476256]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[57e36b29e5bd967b]::plumbing::QueryCtxt, false>
  39:     0x7fb33d75cb61 - rustc_query_impl[57e36b29e5bd967b]::query_impl::explicit_item_bounds::get_query_non_incr::__rust_end_short_backtrace
  40:     0x7fb33d7cd6de - <rustc_hir_analysis[79e63f47d465cd1b]::collect::CollectItemTypesVisitor as rustc_hir[9f3737e52b7f217]::intravisit::Visitor>::visit_item
  41:     0x7fb33d7cbbea - rustc_hir_analysis[79e63f47d465cd1b]::collect::collect_mod_item_types
  42:     0x7fb33d7cbb77 - rustc_query_impl[57e36b29e5bd967b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[57e36b29e5bd967b]::query_impl::collect_mod_item_types::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e10bafab6a476256]::query::erase::Erased<[u8; 0usize]>>
  43:     0x7fb33e01036d - rustc_query_system[2e43c3a675bb3873]::query::plumbing::try_execute_query::<rustc_query_impl[57e36b29e5bd967b]::DynamicConfig<rustc_query_system[2e43c3a675bb3873]::query::caches::DefaultCache<rustc_span[ba27dc81bf59733]::def_id::LocalModDefId, rustc_middle[e10bafab6a476256]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[57e36b29e5bd967b]::plumbing::QueryCtxt, false>
  44:     0x7fb33e00fe97 - rustc_query_impl[57e36b29e5bd967b]::query_impl::collect_mod_item_types::get_query_non_incr::__rust_end_short_backtrace
  45:     0x7fb33ddbf828 - rustc_hir_analysis[79e63f47d465cd1b]::check_crate
  46:     0x7fb33e0071af - rustc_interface[4e9aee6b98c8cda]::passes::analysis
  47:     0x7fb33e006e19 - rustc_query_impl[57e36b29e5bd967b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[57e36b29e5bd967b]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[e10bafab6a476256]::query::erase::Erased<[u8; 1usize]>>
  48:     0x7fb33e1210a5 - rustc_query_system[2e43c3a675bb3873]::query::plumbing::try_execute_query::<rustc_query_impl[57e36b29e5bd967b]::DynamicConfig<rustc_query_system[2e43c3a675bb3873]::query::caches::SingleCache<rustc_middle[e10bafab6a476256]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[57e36b29e5bd967b]::plumbing::QueryCtxt, false>
  49:     0x7fb33e120e09 - rustc_query_impl[57e36b29e5bd967b]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  50:     0x7fb33e1302d6 - rustc_interface[4e9aee6b98c8cda]::interface::run_compiler::<core[169382930dc0d056]::result::Result<(), rustc_span[ba27dc81bf59733]::ErrorGuaranteed>, rustc_driver_impl[c7e2e991238ea07f]::run_compiler::{closure#0}>::{closure#0}
  51:     0x7fb33e3c09cd - std[dd5750cd74b4d211]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[4e9aee6b98c8cda]::util::run_in_thread_with_globals<rustc_interface[4e9aee6b98c8cda]::util::run_in_thread_pool_with_globals<rustc_interface[4e9aee6b98c8cda]::interface::run_compiler<core[169382930dc0d056]::result::Result<(), rustc_span[ba27dc81bf59733]::ErrorGuaranteed>, rustc_driver_impl[c7e2e991238ea07f]::run_compiler::{closure#0}>::{closure#0}, core[169382930dc0d056]::result::Result<(), rustc_span[ba27dc81bf59733]::ErrorGuaranteed>>::{closure#0}, core[169382930dc0d056]::result::Result<(), rustc_span[ba27dc81bf59733]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[169382930dc0d056]::result::Result<(), rustc_span[ba27dc81bf59733]::ErrorGuaranteed>>
  52:     0x7fb33e3c07fa - <<std[dd5750cd74b4d211]::thread::Builder>::spawn_unchecked_<rustc_interface[4e9aee6b98c8cda]::util::run_in_thread_with_globals<rustc_interface[4e9aee6b98c8cda]::util::run_in_thread_pool_with_globals<rustc_interface[4e9aee6b98c8cda]::interface::run_compiler<core[169382930dc0d056]::result::Result<(), rustc_span[ba27dc81bf59733]::ErrorGuaranteed>, rustc_driver_impl[c7e2e991238ea07f]::run_compiler::{closure#0}>::{closure#0}, core[169382930dc0d056]::result::Result<(), rustc_span[ba27dc81bf59733]::ErrorGuaranteed>>::{closure#0}, core[169382930dc0d056]::result::Result<(), rustc_span[ba27dc81bf59733]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[169382930dc0d056]::result::Result<(), rustc_span[ba27dc81bf59733]::ErrorGuaranteed>>::{closure#1} as core[169382930dc0d056]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  53:     0x7fb33f3c3725 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h805908c663ab5fb8
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/alloc/src/boxed.rs:2016:9
  54:     0x7fb33f3c3725 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42041a05506d3149
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/alloc/src/boxed.rs:2016:9
  55:     0x7fb33f3c3725 - std::sys::pal::unix::thread::Thread::new::thread_start::h93419657116bfcaf
                               at /rustc/6dadb6eb23e7719da4e372d3e13d50282323d022/library/std/src/sys/pal/unix/thread.rs:108:17
  56:     0x7fb33906f9eb - <unknown>
  57:     0x7fb3390f37cc - <unknown>
  58:                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 1.78.0-nightly (6dadb6eb2 2024-02-23) running on x86_64-unknown-linux-gnu

query stack during panic:
#0 [resolve_bound_vars] resolving lifetimes
#1 [late_bound_vars_map] looking up late bound vars
#2 [explicit_item_bounds] finding item bounds for `<impl at /tmp/icemaker_global_tempdir.YABn6SpLAh6p/rustc_testrunner_tmpdir_reporting.T1oCLmcoChXJ/mvce.rs:1:1: 1:12>::box_box_ref_Struct::{opaque#0}`
#3 [collect_mod_item_types] collecting item types in top-level module
#4 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 5 previous errors

Some errors have detailed explanations: E0412, E0425, E0601, E0670.
For more information about an error, try `rustc --explain E0412`.

[matthiaskrgr]

#121208 cc @nnethercote