[INFO] fetching crate constvec 0.1.14...
[INFO] checking constvec-0.1.14 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate constvec 0.1.14 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate constvec 0.1.14
[INFO] finished tweaking crates.io crate constvec 0.1.14
[INFO] tweaked toml for crates.io crate constvec 0.1.14 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate constvec 0.1.14 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate constvec 0.1.14 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 226ed5ff8c632e348b1c7dbc574407f41d464f5768f37b17ddac06be76626d1f
[INFO] running `Command { std: "docker" "start" "-a" "226ed5ff8c632e348b1c7dbc574407f41d464f5768f37b17ddac06be76626d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "226ed5ff8c632e348b1c7dbc574407f41d464f5768f37b17ddac06be76626d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "226ed5ff8c632e348b1c7dbc574407f41d464f5768f37b17ddac06be76626d1f", kill_on_drop: false }`
[INFO] [stdout] 226ed5ff8c632e348b1c7dbc574407f41d464f5768f37b17ddac06be76626d1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 469f6fc476869c7578445d51692b057d0831847a8a7e82b9446d3ca94d61bd33
[INFO] running `Command { std: "docker" "start" "-a" "469f6fc476869c7578445d51692b057d0831847a8a7e82b9446d3ca94d61bd33", kill_on_drop: false }`
[INFO] [stderr]     Checking constvec v0.1.14 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops`
[INFO] [stdout]    --> src/lib.rs:232:63
[INFO] [stdout]     |
[INFO] [stdout] 232 | impl<T: Sized + Copy, const N1: usize, const N2: usize> const Add<&ConstVec<[T; N2]>>
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #143802 <https://github.com/rust-lang/rust/issues/143802> for more information
[INFO] [stdout]     = help: add `#![feature(const_ops)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_copy_from_slice` has been stable since 1.87.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_copy_from_slice)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops`
[INFO] [stdout]    --> src/lib.rs:232:63
[INFO] [stdout]     |
[INFO] [stdout] 232 | impl<T: Sized + Copy, const N1: usize, const N2: usize> const Add<&ConstVec<[T; N2]>>
[INFO] [stdout]     |                                                               ^^^^^^^^^^^^^^^^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #143802 <https://github.com/rust-lang/rust/issues/143802> for more information
[INFO] [stdout]     = help: add `#![feature(const_ops)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_copy_from_slice` has been stable since 1.87.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_copy_from_slice)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]  --> src/lib.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fmt::{Debug, Pointer},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: internal compiler error: compiler/rustc_const_eval/src/check_consts/qualifs.rs:359:13: expected ConstKind::Param or ConstKind::Value here, found UnevaluatedConst { def: DefId(0:111 ~ constvec[55d0]::{impl#8}::add::{constant#2}), args: ['{erased}, '{erased}, T/#2, N1/#3, N2/#4] }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (32) panicked at compiler/rustc_const_eval/src/check_consts/qualifs.rs:359:13:
[INFO] [stderr] Box<dyn Any>
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7513a3fe5a43 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hff1a9408d012ee89
[INFO] [stderr]    1:     0x7513a4801bfc - core::fmt::write::h2f1fc679f228cc52
[INFO] [stderr]    2:     0x7513a3fd0493 - std::io::Write::write_fmt::haa2231cbd9aebf95
[INFO] [stderr]    3:     0x7513a3fe58a2 - std::sys::backtrace::BacktraceLock::print::h28bfdbcac6d3828b
[INFO] [stderr]    4:     0x7513a3fc7c1f - std::panicking::default_hook::{{closure}}::h1f968e3a24b0e3b4
[INFO] [stderr]    5:     0x7513a3fc774b - std::panicking::default_hook::h43da101644971931
[INFO] [stderr]    6:     0x7513a30491b5 - std[619c96d97fe952c]::panicking::update_hook::<alloc[a5c46f2b217994b5]::boxed::Box<rustc_driver_impl[c8262843f73b2e4e]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    7:     0x7513a3fc8313 - std::panicking::panic_with_hook::hb4e916c3e65eccec
[INFO] [stderr]    8:     0x7513a3082991 - std[619c96d97fe952c]::panicking::begin_panic::<rustc_errors[4daa776baabbf775]::ExplicitBug>::{closure#0}
[INFO] [stderr]    9:     0x7513a3082966 - std[619c96d97fe952c]::sys::backtrace::__rust_end_short_backtrace::<std[619c96d97fe952c]::panicking::begin_panic<rustc_errors[4daa776baabbf775]::ExplicitBug>::{closure#0}, !>
[INFO] [stderr]   10:     0x7513a3080ad6 - std[619c96d97fe952c]::panicking::begin_panic::<rustc_errors[4daa776baabbf775]::ExplicitBug>
[INFO] [stderr]   11:     0x7513a306d2f1 - <rustc_errors[4daa776baabbf775]::diagnostic::BugAbort as rustc_errors[4daa776baabbf775]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
[INFO] [stderr]   12:     0x7513a3671b0a - rustc_middle[5ca2e9449305faae]::util::bug::opt_span_bug_fmt::<rustc_span[27d320b5e7e73eb]::span_encoding::Span>::{closure#0}
[INFO] [stderr]   13:     0x7513a3671a4a - rustc_middle[5ca2e9449305faae]::ty::context::tls::with_opt::<rustc_middle[5ca2e9449305faae]::util::bug::opt_span_bug_fmt<rustc_span[27d320b5e7e73eb]::span_encoding::Span>::{closure#0}, !>::{closure#0}
[INFO] [stderr]   14:     0x7513a3671a1b - rustc_middle[5ca2e9449305faae]::ty::context::tls::with_context_opt::<rustc_middle[5ca2e9449305faae]::ty::context::tls::with_opt<rustc_middle[5ca2e9449305faae]::util::bug::opt_span_bug_fmt<rustc_span[27d320b5e7e73eb]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
[INFO] [stderr]   15:     0x7513a06db400 - rustc_middle[5ca2e9449305faae]::util::bug::bug_fmt
[INFO] [stderr]   16:     0x7513a65a5d7e - rustc_const_eval[3f4a307b89f74717]::check_consts::qualifs::in_operand::<rustc_const_eval[3f4a307b89f74717]::check_consts::qualifs::HasMutInterior, <rustc_const_eval[3f4a307b89f74717]::check_consts::resolver::TransferFunction<rustc_const_eval[3f4a307b89f74717]::check_consts::qualifs::HasMutInterior> as rustc_middle[5ca2e9449305faae]::mir::visit::Visitor>::visit_assign::{closure#0}>.cold
[INFO] [stderr]   17:     0x7513a5ff23c3 - <rustc_const_eval[3f4a307b89f74717]::check_consts::resolver::FlowSensitiveAnalysis<rustc_const_eval[3f4a307b89f74717]::check_consts::qualifs::HasMutInterior> as rustc_mir_dataflow[5040f7219595d37d]::framework::Analysis>::apply_primary_statement_effect.warm
[INFO] [stderr]   18:     0x7513a5460e49 - <rustc_const_eval[3f4a307b89f74717]::check_consts::check::Qualifs>::has_mut_interior
[INFO] [stderr]   19:     0x7513a546092d - <rustc_const_eval[3f4a307b89f74717]::check_consts::check::Checker>::qualifs_in_return_place
[INFO] [stderr]   20:     0x7513a54601e1 - rustc_mir_transform[8d0e0ad626ae1553]::mir_const_qualif
[INFO] [stderr]   21:     0x7513a5460065 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[e2f117ce3af55616]::query_impl::mir_const_qualif::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 4usize]>>
[INFO] [stderr]   22:     0x7513a545f4e9 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::<rustc_query_impl[e2f117ce3af55616]::DynamicConfig<rustc_query_system[c907f34f82b7658f]::query::caches::DefIdCache<rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 4usize]>>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false>
[INFO] [stderr]   23:     0x7513a545f248 - rustc_query_impl[e2f117ce3af55616]::query_impl::mir_const_qualif::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   24:     0x7513a1dc0e8f - rustc_mir_transform[8d0e0ad626ae1553]::mir_promoted
[INFO] [stderr]   25:     0x7513a4ff9fd2 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[e2f117ce3af55616]::query_impl::mir_promoted::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 16usize]>>
[INFO] [stderr]   26:     0x7513a4ffa296 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::<rustc_query_impl[e2f117ce3af55616]::DynamicConfig<rustc_data_structures[ffa0e2a976d12efe]::vec_cache::VecCache<rustc_span[27d320b5e7e73eb]::def_id::LocalDefId, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[c907f34f82b7658f]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false>
[INFO] [stderr]   27:     0x7513a4ff9e0c - rustc_query_impl[e2f117ce3af55616]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   28:     0x7513a5a0de2e - rustc_borrowck[771eeab328fec4ea]::mir_borrowck
[INFO] [stderr]   29:     0x7513a5a0dcd9 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[e2f117ce3af55616]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 8usize]>>
[INFO] [stderr]   30:     0x7513a4ab1585 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::<rustc_query_impl[e2f117ce3af55616]::DynamicConfig<rustc_data_structures[ffa0e2a976d12efe]::vec_cache::VecCache<rustc_span[27d320b5e7e73eb]::def_id::LocalDefId, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[c907f34f82b7658f]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false>
[INFO] [stderr]   31:     0x7513a4aafbe7 - rustc_query_impl[e2f117ce3af55616]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   32:     0x7513a4aafd8d - <rustc_middle[5ca2e9449305faae]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_interface[b77c32c3bfe8d9]::passes::run_required_analyses::{closure#1}::{closure#0}>::{closure#0}
[INFO] [stderr]   33:     0x7513a4aad583 - rustc_interface[b77c32c3bfe8d9]::passes::analysis
[INFO] [stderr]   34:     0x7513a4aaca39 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[e2f117ce3af55616]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 0usize]>>
[INFO] [stderr]   35:     0x7513a58ad726 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::<rustc_query_impl[e2f117ce3af55616]::DynamicConfig<rustc_query_system[c907f34f82b7658f]::query::caches::SingleCache<rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false>
[INFO] [stderr]   36:     0x7513a58ad37c - rustc_query_impl[e2f117ce3af55616]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   37:     0x7513a598ed8b - rustc_interface[b77c32c3bfe8d9]::passes::create_and_enter_global_ctxt::<core[b7f6e7468eb674bd]::option::Option<rustc_interface[b77c32c3bfe8d9]::queries::Linker>, rustc_driver_impl[c8262843f73b2e4e]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
[INFO] [stderr]   38:     0x7513a59efe03 - rustc_interface[b77c32c3bfe8d9]::interface::run_compiler::<(), rustc_driver_impl[c8262843f73b2e4e]::run_compiler::{closure#0}>::{closure#1}
[INFO] [stderr]   39:     0x7513a594e7fb - std[619c96d97fe952c]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[b77c32c3bfe8d9]::util::run_in_thread_with_globals<rustc_interface[b77c32c3bfe8d9]::util::run_in_thread_pool_with_globals<rustc_interface[b77c32c3bfe8d9]::interface::run_compiler<(), rustc_driver_impl[c8262843f73b2e4e]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   40:     0x7513a594e4d4 - <<std[619c96d97fe952c]::thread::Builder>::spawn_unchecked_<rustc_interface[b77c32c3bfe8d9]::util::run_in_thread_with_globals<rustc_interface[b77c32c3bfe8d9]::util::run_in_thread_pool_with_globals<rustc_interface[b77c32c3bfe8d9]::interface::run_compiler<(), rustc_driver_impl[c8262843f73b2e4e]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[b7f6e7468eb674bd]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   41:     0x7513a594a28b - std::sys::pal::unix::thread::Thread::new::thread_start::h66ff1bba185a50cf
[INFO] [stderr]   42:     0x75139f28aaa4 - <unknown>
[INFO] [stderr]   43:     0x75139f317a34 - clone
[INFO] [stderr]   44:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] 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
[INFO] [stderr] 
[INFO] [stderr] note: please make sure that you have updated to the latest nightly
[INFO] [stderr] 
[INFO] [stderr] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2025-08-25T11_00_03-26.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.91.0-nightly (350d0ef0e 2025-08-13) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] #0 [mir_const_qualif] const checking `<impl at src/lib.rs:232:1: 236:20>::add`
[INFO] [stderr] #1 [mir_promoted] promoting constants in MIR for `<impl at src/lib.rs:232:1: 236:20>::add`
[INFO] [stderr] #2 [mir_borrowck] borrow-checking `<impl at src/lib.rs:232:1: 236:20>::add`
[INFO] [stderr] #3 [analysis] running analysis passes on this crate
[INFO] [stderr] end of query stack
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `constvec` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `Pointer`
[INFO] [stdout]  --> src/lib.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fmt::{Debug, Pointer},
[INFO] [stdout]   |                  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: internal compiler error: compiler/rustc_const_eval/src/check_consts/qualifs.rs:359:13: expected ConstKind::Param or ConstKind::Value here, found UnevaluatedConst { def: DefId(0:111 ~ constvec[07f6]::{impl#8}::add::{constant#2}), args: ['{erased}, '{erased}, T/#2, N1/#3, N2/#4] }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (29) panicked at compiler/rustc_const_eval/src/check_consts/qualifs.rs:359:13:
[INFO] [stderr] Box<dyn Any>
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7707093e5a43 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hff1a9408d012ee89
[INFO] [stderr]    1:     0x770709c01bfc - core::fmt::write::h2f1fc679f228cc52
[INFO] [stderr]    2:     0x7707093d0493 - std::io::Write::write_fmt::haa2231cbd9aebf95
[INFO] [stderr]    3:     0x7707093e58a2 - std::sys::backtrace::BacktraceLock::print::h28bfdbcac6d3828b
[INFO] [stderr]    4:     0x7707093c7c1f - std::panicking::default_hook::{{closure}}::h1f968e3a24b0e3b4
[INFO] [stderr]    5:     0x7707093c774b - std::panicking::default_hook::h43da101644971931
[INFO] [stderr]    6:     0x7707084491b5 - std[619c96d97fe952c]::panicking::update_hook::<alloc[a5c46f2b217994b5]::boxed::Box<rustc_driver_impl[c8262843f73b2e4e]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    7:     0x7707093c8313 - std::panicking::panic_with_hook::hb4e916c3e65eccec
[INFO] [stderr]    8:     0x770708482991 - std[619c96d97fe952c]::panicking::begin_panic::<rustc_errors[4daa776baabbf775]::ExplicitBug>::{closure#0}
[INFO] [stderr]    9:     0x770708482966 - std[619c96d97fe952c]::sys::backtrace::__rust_end_short_backtrace::<std[619c96d97fe952c]::panicking::begin_panic<rustc_errors[4daa776baabbf775]::ExplicitBug>::{closure#0}, !>
[INFO] [stderr]   10:     0x770708480ad6 - std[619c96d97fe952c]::panicking::begin_panic::<rustc_errors[4daa776baabbf775]::ExplicitBug>
[INFO] [stderr]   11:     0x77070846d2f1 - <rustc_errors[4daa776baabbf775]::diagnostic::BugAbort as rustc_errors[4daa776baabbf775]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
[INFO] [stderr]   12:     0x770708a71b0a - rustc_middle[5ca2e9449305faae]::util::bug::opt_span_bug_fmt::<rustc_span[27d320b5e7e73eb]::span_encoding::Span>::{closure#0}
[INFO] [stderr]   13:     0x770708a71a4a - rustc_middle[5ca2e9449305faae]::ty::context::tls::with_opt::<rustc_middle[5ca2e9449305faae]::util::bug::opt_span_bug_fmt<rustc_span[27d320b5e7e73eb]::span_encoding::Span>::{closure#0}, !>::{closure#0}
[INFO] [stderr]   14:     0x770708a71a1b - rustc_middle[5ca2e9449305faae]::ty::context::tls::with_context_opt::<rustc_middle[5ca2e9449305faae]::ty::context::tls::with_opt<rustc_middle[5ca2e9449305faae]::util::bug::opt_span_bug_fmt<rustc_span[27d320b5e7e73eb]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
[INFO] [stderr]   15:     0x770705adb400 - rustc_middle[5ca2e9449305faae]::util::bug::bug_fmt
[INFO] [stderr]   16:     0x77070b9a5d7e - rustc_const_eval[3f4a307b89f74717]::check_consts::qualifs::in_operand::<rustc_const_eval[3f4a307b89f74717]::check_consts::qualifs::HasMutInterior, <rustc_const_eval[3f4a307b89f74717]::check_consts::resolver::TransferFunction<rustc_const_eval[3f4a307b89f74717]::check_consts::qualifs::HasMutInterior> as rustc_middle[5ca2e9449305faae]::mir::visit::Visitor>::visit_assign::{closure#0}>.cold
[INFO] [stderr]   17:     0x77070b3f23c3 - <rustc_const_eval[3f4a307b89f74717]::check_consts::resolver::FlowSensitiveAnalysis<rustc_const_eval[3f4a307b89f74717]::check_consts::qualifs::HasMutInterior> as rustc_mir_dataflow[5040f7219595d37d]::framework::Analysis>::apply_primary_statement_effect.warm
[INFO] [stderr]   18:     0x77070a860e49 - <rustc_const_eval[3f4a307b89f74717]::check_consts::check::Qualifs>::has_mut_interior
[INFO] [stderr]   19:     0x77070a86092d - <rustc_const_eval[3f4a307b89f74717]::check_consts::check::Checker>::qualifs_in_return_place
[INFO] [stderr]   20:     0x77070a8601e1 - rustc_mir_transform[8d0e0ad626ae1553]::mir_const_qualif
[INFO] [stderr]   21:     0x77070a860065 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[e2f117ce3af55616]::query_impl::mir_const_qualif::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 4usize]>>
[INFO] [stderr]   22:     0x77070a85f4e9 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::<rustc_query_impl[e2f117ce3af55616]::DynamicConfig<rustc_query_system[c907f34f82b7658f]::query::caches::DefIdCache<rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 4usize]>>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false>
[INFO] [stderr]   23:     0x77070a85f248 - rustc_query_impl[e2f117ce3af55616]::query_impl::mir_const_qualif::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   24:     0x7707071c0e8f - rustc_mir_transform[8d0e0ad626ae1553]::mir_promoted
[INFO] [stderr]   25:     0x77070a3f9fd2 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[e2f117ce3af55616]::query_impl::mir_promoted::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 16usize]>>
[INFO] [stderr]   26:     0x77070a3fa296 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::<rustc_query_impl[e2f117ce3af55616]::DynamicConfig<rustc_data_structures[ffa0e2a976d12efe]::vec_cache::VecCache<rustc_span[27d320b5e7e73eb]::def_id::LocalDefId, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[c907f34f82b7658f]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false>
[INFO] [stderr]   27:     0x77070a3f9e0c - rustc_query_impl[e2f117ce3af55616]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   28:     0x77070ae0de2e - rustc_borrowck[771eeab328fec4ea]::mir_borrowck
[INFO] [stderr]   29:     0x77070ae0dcd9 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[e2f117ce3af55616]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 8usize]>>
[INFO] [stderr]   30:     0x770709eb1585 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::<rustc_query_impl[e2f117ce3af55616]::DynamicConfig<rustc_data_structures[ffa0e2a976d12efe]::vec_cache::VecCache<rustc_span[27d320b5e7e73eb]::def_id::LocalDefId, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[c907f34f82b7658f]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false>
[INFO] [stderr]   31:     0x770709eafbe7 - rustc_query_impl[e2f117ce3af55616]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   32:     0x770709eafd8d - <rustc_middle[5ca2e9449305faae]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_interface[b77c32c3bfe8d9]::passes::run_required_analyses::{closure#1}::{closure#0}>::{closure#0}
[INFO] [stderr]   33:     0x770709ead583 - rustc_interface[b77c32c3bfe8d9]::passes::analysis
[INFO] [stderr]   34:     0x770709eaca39 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[e2f117ce3af55616]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 0usize]>>
[INFO] [stderr]   35:     0x77070acad726 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::<rustc_query_impl[e2f117ce3af55616]::DynamicConfig<rustc_query_system[c907f34f82b7658f]::query::caches::SingleCache<rustc_middle[5ca2e9449305faae]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false>
[INFO] [stderr]   36:     0x77070acad37c - rustc_query_impl[e2f117ce3af55616]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   37:     0x77070ad8ed8b - rustc_interface[b77c32c3bfe8d9]::passes::create_and_enter_global_ctxt::<core[b7f6e7468eb674bd]::option::Option<rustc_interface[b77c32c3bfe8d9]::queries::Linker>, rustc_driver_impl[c8262843f73b2e4e]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
[INFO] [stderr]   38:     0x77070adefe03 - rustc_interface[b77c32c3bfe8d9]::interface::run_compiler::<(), rustc_driver_impl[c8262843f73b2e4e]::run_compiler::{closure#0}>::{closure#1}
[INFO] [stderr]   39:     0x77070ad4e7fb - std[619c96d97fe952c]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[b77c32c3bfe8d9]::util::run_in_thread_with_globals<rustc_interface[b77c32c3bfe8d9]::util::run_in_thread_pool_with_globals<rustc_interface[b77c32c3bfe8d9]::interface::run_compiler<(), rustc_driver_impl[c8262843f73b2e4e]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   40:     0x77070ad4e4d4 - <<std[619c96d97fe952c]::thread::Builder>::spawn_unchecked_<rustc_interface[b77c32c3bfe8d9]::util::run_in_thread_with_globals<rustc_interface[b77c32c3bfe8d9]::util::run_in_thread_pool_with_globals<rustc_interface[b77c32c3bfe8d9]::interface::run_compiler<(), rustc_driver_impl[c8262843f73b2e4e]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[b7f6e7468eb674bd]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   41:     0x77070ad4a28b - std::sys::pal::unix::thread::Thread::new::thread_start::h66ff1bba185a50cf
[INFO] [stderr]   42:     0x77070468aaa4 - <unknown>
[INFO] [stderr]   43:     0x770704717a34 - clone
[INFO] [stderr]   44:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] 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
[INFO] [stderr] 
[INFO] [stderr] note: please make sure that you have updated to the latest nightly
[INFO] [stderr] 
[INFO] [stderr] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2025-08-25T11_00_03-27.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.91.0-nightly (350d0ef0e 2025-08-13) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: --crate-type lib -C embed-bitcode=no -C debuginfo=2
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] #0 [mir_const_qualif] const checking `<impl at src/lib.rs:232:1: 236:20>::add`
[INFO] [stderr] #1 [mir_promoted] promoting constants in MIR for `<impl at src/lib.rs:232:1: 236:20>::add`
[INFO] [stderr] #2 [mir_borrowck] borrow-checking `<impl at src/lib.rs:232:1: 236:20>::add`
[INFO] [stderr] #3 [analysis] running analysis passes on this crate
[INFO] [stderr] end of query stack
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `constvec` (lib) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "469f6fc476869c7578445d51692b057d0831847a8a7e82b9446d3ca94d61bd33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "469f6fc476869c7578445d51692b057d0831847a8a7e82b9446d3ca94d61bd33", kill_on_drop: false }`
[INFO] [stdout] 469f6fc476869c7578445d51692b057d0831847a8a7e82b9446d3ca94d61bd33