thread 'rustc' panicked at 'DefId(146:722 ~ libp2p_swarm[d5e9]::behaviour::NetworkBehaviour::ToSwarm) does not have a "type_of"'

[thomaseizinger]

Summary

The error is reproducible on rust-libp2p. A link to the error is here: https://github.com/libp2p/rust-libp2p/actions/runs/5600000763/jobs/10241748470?pr=4217#step:6:989

• git clone git@github.com:libp2p/rust-libp2p.git
• git checkout 1acf4a5e17fe2c5c172cdd91d1ccd15b9b1004e3 (I verified on this commit last)
• cargo +beta custom-clippy

Version

rustc 1.72.0-beta.1 (7ba605cd9 2023-07-11)
binary: rustc
commit-hash: 7ba605cd90d6467bda469d1cd2148ac32ea562bf
commit-date: 2023-07-11
host: x86_64-unknown-linux-gnu
release: 1.72.0-beta.1
LLVM version: 16.0.5

Error output

Backtrace

thread 'rustc' panicked at 'DefId(146:722 ~ libp2p_swarm[3e56]::behaviour::NetworkBehaviour::ToSwarm) does not have a "type_of"', compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs:205:1
stack backtrace:
 0:     0x7fa9efb63a71 - std::backtrace_rs::backtrace::libunwind::trace::h94777a5a344c8170
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
 1:     0x7fa9efb63a71 - std::backtrace_rs::backtrace::trace_unsynchronized::he095887f858ff498
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
 2:     0x7fa9efb63a71 - std::sys_common::backtrace::_print_fmt::heb80af79c3e3532a
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/sys_common/backtrace.rs:65:5
 3:     0x7fa9efb63a71 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h9a19c935d592dfb2
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/sys_common/backtrace.rs:44:22
 4:     0x7fa9efbc9d7f - core::fmt::rt::Argument::fmt::hddb6050609fa06fe
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/core/src/fmt/rt.rs:138:9
 5:     0x7fa9efbc9d7f - core::fmt::write::ha8844a5a3cd50a2c
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/core/src/fmt/mod.rs:1094:21
 6:     0x7fa9efb564b7 - std::io::Write::write_fmt::hb99d0740afb1c700
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/io/mod.rs:1714:15
 7:     0x7fa9efb63885 - std::sys_common::backtrace::_print::h0d0593de5707e0ff
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/sys_common/backtrace.rs:47:5
 8:     0x7fa9efb63885 - std::sys_common::backtrace::print::hbcfa6697a1a39978
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/sys_common/backtrace.rs:34:9
 9:     0x7fa9efb66663 - std::panicking::default_hook::{{closure}}::he1e63e7051fb08fe
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/panicking.rs:269:22
10:     0x7fa9efb663f4 - std::panicking::default_hook::h72264c321cf51b86
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/panicking.rs:288:9
11:     0x7fa9f2e35c1b - <rustc_driver_impl[9022bb2727ba2234]::install_ice_hook::{closure#0} as core[e4967467b6217607]::ops::function::FnOnce<(&core[e4967467b6217607]::panic::panic_info::Panic
12:     0x7fa9efb66e8e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7dda1de8100a31f6
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/alloc/src/boxed.rs:2007:9
13:     0x7fa9efb66e8e - std::panicking::rust_panic_with_hook::hd8d4ad75aad75468
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/panicking.rs:709:13
14:     0x7fa9efb66c17 - std::panicking::begin_panic_handler::{{closure}}::h512fa2700c56c434
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/panicking.rs:597:13
15:     0x7fa9efb63ed6 - std::sys_common::backtrace::__rust_end_short_backtrace::h49b29d9ed805b763
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/sys_common/backtrace.rs:151:18
16:     0x7fa9efb66962 - rust_begin_unwind
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/panicking.rs:593:5
17:     0x7fa9efbc5fd3 - core::panicking::panic_fmt::hf10924179b0733e8
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/core/src/panicking.rs:67:14
18:     0x7fa9f3309e72 - rustc_metadata[bad9f683e1a4028]::rmeta::decoder::cstore_impl::provide_extern::type_of::{closure#2}
19:     0x7fa9f0f90ac7 - rustc_query_impl[ca17851a876816be]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ca17851a876816be]::query_impl::type_of::dynamic_query::{closure#2}::{clos
20:     0x7fa9f0f905f0 - <rustc_query_impl[ca17851a876816be]::query_impl::type_of::dynamic_query::{closure#2} as core[e4967467b6217607]::ops::function::FnOnce<(rustc_middle[9c74e7ef4ffdc64f]::
21:     0x7fa9f1c224d1 - rustc_query_system[e52d09ec8c9901f8]::query::plumbing::try_execute_query::<rustc_query_impl[ca17851a876816be]::DynamicConfig<rustc_query_system[e52d09ec8c9901f8]::quer
22:     0x7fa9f2796c2b - rustc_query_impl[ca17851a876816be]::query_impl::type_of::get_query_incr::__rust_end_short_backtrace
23:     0x562cc111ccef - rustc_middle[9c74e7ef4ffdc64f]::query::plumbing::query_get_at::<rustc_query_system[e52d09ec8c9901f8]::query::caches::DefaultCache<rustc_span[f261485185b8127d]::def_id:
24:     0x562cc113e77c - clippy_lints[19070363130151e9]::redundant_type_annotations::is_redundant_in_func_call
25:     0x562cc113e86f - <clippy_lints[19070363130151e9]::redundant_type_annotations::RedundantTypeAnnotations as rustc_lint[9e62062d10dbe12e]::passes::LateLintPass>::check_local
26:     0x7fa9f3238df3 - <rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass as rustc_lint[9e62062d10dbe12e]::passes::LateLintPass>::check_local
27:     0x7fa9f32168f1 - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
28:     0x7fa9f31eba8b - rustc_hir[c71688bad7d0abe8]::intravisit::walk_block::<rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLin
29:     0x7fa9f3216879 - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
30:     0x7fa9f32157c1 - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass>>::with_lint_attrs::<<rustc_lint[9e62062d10dbe1
31:     0x7fa9f321676c - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
32:     0x7fa9f3216bc5 - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
33:     0x7fa9f3216daa - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
34:     0x7fa9f31ed483 - rustc_hir[c71688bad7d0abe8]::intravisit::walk_item::<rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLint
35:     0x7fa9f3217557 - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
36:     0x7fa9f31eba8b - rustc_hir[c71688bad7d0abe8]::intravisit::walk_block::<rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLin
37:     0x7fa9f3216879 - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
38:     0x7fa9f32157c1 - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass>>::with_lint_attrs::<<rustc_lint[9e62062d10dbe1
39:     0x7fa9f321676c - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
40:     0x7fa9f3216bc5 - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
41:     0x7fa9f3216daa - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
42:     0x7fa9f31ed483 - rustc_hir[c71688bad7d0abe8]::intravisit::walk_item::<rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLint
43:     0x7fa9f3217557 - <rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintPass> as rustc_hir[c71688bad7d0abe8]::intravisit::Vi
44:     0x7fa9f31eccf8 - rustc_hir[c71688bad7d0abe8]::intravisit::walk_mod::<rustc_lint[9e62062d10dbe12e]::late::LateContextAndPass<rustc_lint[9e62062d10dbe12e]::late::RuntimeCombinedLateLintP
45:     0x7fa9f22a352e - rustc_lint[9e62062d10dbe12e]::late::late_lint_crate::<rustc_lint[9e62062d10dbe12e]::BuiltinCombinedLateLintPass>
46:     0x7fa9f22a2978 - <rustc_session[ac31272b89124e68]::session::Session>::time::<(), rustc_lint[9e62062d10dbe12e]::late::check_crate<rustc_lint[9e62062d10dbe12e]::BuiltinCombinedLateLintPa
47:     0x7fa9f22a2813 - <rustc_session[ac31272b89124e68]::session::Session>::time::<(), rustc_interface[703edc9b7010fe6b]::passes::analysis::{closure#5}::{closure#1}::{closure#2}::{closure#0}
48:     0x7fa9f22a234f - <core[e4967467b6217607]::panic::unwind_safe::AssertUnwindSafe<rustc_interface[703edc9b7010fe6b]::passes::analysis::{closure#5}::{closure#1}> as core[e4967467b6217607]:
49:     0x7fa9f22a1d70 - <rustc_session[ac31272b89124e68]::session::Session>::time::<(), rustc_interface[703edc9b7010fe6b]::passes::analysis::{closure#5}>
50:     0x7fa9f22a0887 - rustc_interface[703edc9b7010fe6b]::passes::analysis
51:     0x7fa9f22fb3ea - rustc_query_impl[ca17851a876816be]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ca17851a876816be]::query_impl::analysis::dynamic_query::{closure#2}::{clo
52:     0x7fa9f22fb3d9 - <rustc_query_impl[ca17851a876816be]::query_impl::analysis::dynamic_query::{closure#2} as core[e4967467b6217607]::ops::function::FnOnce<(rustc_middle[9c74e7ef4ffdc64f]:
53:     0x7fa9f25f2eff - rustc_query_system[e52d09ec8c9901f8]::query::plumbing::try_execute_query::<rustc_query_impl[ca17851a876816be]::DynamicConfig<rustc_query_system[e52d09ec8c9901f8]::quer
54:     0x7fa9f25f2aa4 - rustc_query_impl[ca17851a876816be]::query_impl::analysis::get_query_incr::__rust_end_short_backtrace
55:     0x7fa9f206e9b5 - <rustc_middle[9c74e7ef4ffdc64f]::ty::context::GlobalCtxt>::enter::<rustc_driver_impl[9022bb2727ba2234]::run_compiler::{closure#1}::{closure#2}::{closure#4}, core[e4967
56:     0x7fa9f206dfe2 - <rustc_interface[703edc9b7010fe6b]::interface::Compiler>::enter::<rustc_driver_impl[9022bb2727ba2234]::run_compiler::{closure#1}::{closure#2}, core[e4967467b6217607]::
57:     0x7fa9f2067135 - rustc_span[f261485185b8127d]::set_source_map::<core[e4967467b6217607]::result::Result<(), rustc_span[f261485185b8127d]::ErrorGuaranteed>, rustc_interface[703edc9b7010fe6b]::interface::run_compiler<core[e4967467b6217607]::result::Result<(), rustc_span[f261485185b8127d]::ErrorGuaranteed>, rustc_driver_impl[9022bb2727ba2234]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
58:     0x7fa9f2066ba6 - <scoped_tls[c50e4eaf01ac5aa0]::ScopedKey<rustc_span[f261485185b8127d]::SessionGlobals>>::set::<rustc_interface[703edc9b7010fe6b]::interface::run_compiler<core[e4967467b6217607]::result::Result<(), rustc_span[f261485185b8127d]::ErrorGuaranteed>, rustc_driver_impl[9022bb2727ba2234]::run_compiler::{closure#1}>::{closure#0}, core[e4967467b6217607]::result::Result<(), rustc_span[f261485185b8127d]::ErrorGuaranteed>>
59:     0x7fa9f206616c - std[608f0a5433fa9789]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[703edc9b7010fe6b]::util::run_in_thread_pool_with_globals<rustc_interface[703edc9b7010fe6b]::interface::run_compiler<core[e4967467b6217607]::result::Result<(), rustc_span[f261485185b8127d]::ErrorGuaranteed>, rustc_driver_impl[9022bb2727ba2234]::run_compiler::{closure#1}>::{closure#0}, core[e4967467b6217607]::result::Result<(), rustc_span[f261485185b8127d]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[e4967467b6217607]::result::Result<(), rustc_span[f261485185b8127d]::ErrorGuaranteed>>
60:     0x7fa9f2065f35 - <<std[608f0a5433fa9789]::thread::Builder>::spawn_unchecked_<rustc_interface[703edc9b7010fe6b]::util::run_in_thread_pool_with_globals<rustc_interface[703edc9b7010fe6b]::interface::run_compiler<core[e4967467b6217607]::result::Result<(), rustc_span[f261485185b8127d]::ErrorGuaranteed>, rustc_driver_impl[9022bb2727ba2234]::run_compiler::{closure#1}>::{closure#0}, core[e4967467b6217607]::result::Result<(), rustc_span[f261485185b8127d]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[e4967467b6217607]::result::Result<(), rustc_span[f261485185b8127d]::ErrorGuaranteed>>::{closure#1} as core[e4967467b6217607]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
61:     0x7fa9efb71305 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2b1aee684822b9e4
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/alloc/src/boxed.rs:1993:9
62:     0x7fa9efb71305 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hefb9a903e14e5c77
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/alloc/src/boxed.rs:1993:9
63:     0x7fa9efb71305 - std::sys::unix::thread::Thread::new::thread_start::h13ba2a34a82ad56b
                             at /rustc/7ba605cd90d6467bda469d1cd2148ac32ea562bf/library/std/src/sys/unix/thread.rs:108:17
64:     0x7fa9ef81744b - <unknown>
65:     0x7fa9ef89ae40 - <unknown>
66:                0x0 - <unknown>

[y21]

minimal reproducible example:

trait NetworkBehaviour {
    type ToSwarm;
}
struct Foo {
    ping: (),
}
impl NetworkBehaviour for Foo {
    type ToSwarm = i32;
}
fn foo() {
    let _out_event: <Foo as NetworkBehaviour>::ToSwarm = unimplemented!();
}

https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=59e0ad957c93e3a3ff15cf6fbd7ed717

[y21]

Oh wait, looks like I just found a different ICE while trying to minimize this one 😅
The MRE I posted is not quite the same I don't think

[Alexendoo]

The type_of query runs different code for local and foreign definitions. The ICE in the example is the one you'd see if the trait was defined in a different crate but it's the same issue in both cases