[INFO] fetching crate serialization 0.2.12...
[INFO] checking serialization-0.2.12 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate serialization 0.2.12 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate serialization 0.2.12
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serialization 0.2.12
[INFO] tweaked toml for crates.io crate serialization 0.2.12 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serialization 0.2.12 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serialization 0.2.12 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38ea141b923b7377cf59c0ca1f784b7d8c4e9ac8d476daf9a760c898aef0f581
[INFO] running `Command { std: "docker" "start" "-a" "38ea141b923b7377cf59c0ca1f784b7d8c4e9ac8d476daf9a760c898aef0f581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38ea141b923b7377cf59c0ca1f784b7d8c4e9ac8d476daf9a760c898aef0f581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38ea141b923b7377cf59c0ca1f784b7d8c4e9ac8d476daf9a760c898aef0f581", kill_on_drop: false }`
[INFO] [stdout] 38ea141b923b7377cf59c0ca1f784b7d8c4e9ac8d476daf9a760c898aef0f581
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 384c799a9d5175d26c7459cec416672ef99e0f488394ecb4109e221c99c01d32
[INFO] running `Command { std: "docker" "start" "-a" "384c799a9d5175d26c7459cec416672ef99e0f488394ecb4109e221c99c01d32", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.168
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling rustix v0.38.42
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking anstyle v1.0.10
[INFO] [stderr]     Checking clap_lex v0.7.4
[INFO] [stderr]     Checking uuid v1.11.0
[INFO] [stderr]     Checking constvec v0.1.14
[INFO] [stderr]     Checking fastbuf v0.28.0
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/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 #90080 <https://github.com/rust-lang/rust/issues/90080> for more information
[INFO] [stdout]     = help: add `#![feature(const_ops)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2025-06-29; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling seq-macro v0.3.5
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr] 
[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[e4c7]::{impl#8}::add::{constant#2}), args: ['{erased}, '{erased}, T/#2, N1/#3, N2/#4] }
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] thread 'rustc' 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:     0x773d2d8be923 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h6da87f843d594e5f
[INFO] [stderr]    1:     0x773d2e002c3f - core::fmt::write::hfc80a741b320fdf6
[INFO] [stderr]    2:     0x773d2d8b4453 - std::io::Write::write_fmt::h4ea6a86049496d1c
[INFO] [stderr]    3:     0x773d2d8be782 - std::sys::backtrace::BacktraceLock::print::h1cbd12f8d7a3dd2a
[INFO] [stderr]    4:     0x773d2d8c227a - std::panicking::default_hook::{{closure}}::h05e45c6f75ebd415
[INFO] [stderr]    5:     0x773d2d8c1dff - std::panicking::default_hook::h282f20b2a278c2b0
[INFO] [stderr]    6:     0x773d2c989413 - std[b700f210f1168e2d]::panicking::update_hook::<alloc[3d61174b3c3e9ec3]::boxed::Box<rustc_driver_impl[f0d2268ab262023e]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    7:     0x773d2d8c2acb - std::panicking::rust_panic_with_hook::h36eb92d284238d72
[INFO] [stderr]    8:     0x773d2c9c2f01 - std[b700f210f1168e2d]::panicking::begin_panic::<rustc_errors[3ceeec2b4e68fb97]::ExplicitBug>::{closure#0}
[INFO] [stderr]    9:     0x773d2c9b7476 - std[b700f210f1168e2d]::sys::backtrace::__rust_end_short_backtrace::<std[b700f210f1168e2d]::panicking::begin_panic<rustc_errors[3ceeec2b4e68fb97]::ExplicitBug>::{closure#0}, !>
[INFO] [stderr]   10:     0x773d2c9b3fd5 - std[b700f210f1168e2d]::panicking::begin_panic::<rustc_errors[3ceeec2b4e68fb97]::ExplicitBug>
[INFO] [stderr]   11:     0x773d2c9cc9e1 - <rustc_errors[3ceeec2b4e68fb97]::diagnostic::BugAbort as rustc_errors[3ceeec2b4e68fb97]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
[INFO] [stderr]   12:     0x773d2cf9869a - rustc_middle[1a91424c2bbde99c]::util::bug::opt_span_bug_fmt::<rustc_span[ef2c70c94a270753]::span_encoding::Span>::{closure#0}
[INFO] [stderr]   13:     0x773d2cf781ea - rustc_middle[1a91424c2bbde99c]::ty::context::tls::with_opt::<rustc_middle[1a91424c2bbde99c]::util::bug::opt_span_bug_fmt<rustc_span[ef2c70c94a270753]::span_encoding::Span>::{closure#0}, !>::{closure#0}
[INFO] [stderr]   14:     0x773d2cf7805b - rustc_middle[1a91424c2bbde99c]::ty::context::tls::with_context_opt::<rustc_middle[1a91424c2bbde99c]::ty::context::tls::with_opt<rustc_middle[1a91424c2bbde99c]::util::bug::opt_span_bug_fmt<rustc_span[ef2c70c94a270753]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
[INFO] [stderr]   15:     0x773d2a0a6260 - rustc_middle[1a91424c2bbde99c]::util::bug::bug_fmt
[INFO] [stderr]   16:     0x773d2fc0443e - rustc_const_eval[cd894b41dc4d9422]::check_consts::qualifs::in_operand::<rustc_const_eval[cd894b41dc4d9422]::check_consts::qualifs::HasMutInterior, <rustc_const_eval[cd894b41dc4d9422]::check_consts::resolver::TransferFunction<rustc_const_eval[cd894b41dc4d9422]::check_consts::qualifs::HasMutInterior> as rustc_middle[1a91424c2bbde99c]::mir::visit::Visitor>::visit_assign::{closure#0}>.cold
[INFO] [stderr]   17:     0x773d2e8b3511 - <rustc_const_eval[cd894b41dc4d9422]::check_consts::resolver::FlowSensitiveAnalysis<rustc_const_eval[cd894b41dc4d9422]::check_consts::qualifs::HasMutInterior> as rustc_mir_dataflow[adc549db2bd175fa]::framework::Analysis>::apply_primary_statement_effect
[INFO] [stderr]   18:     0x773d2e8adb05 - <rustc_const_eval[cd894b41dc4d9422]::check_consts::check::Qualifs>::has_mut_interior
[INFO] [stderr]   19:     0x773d2e8ad5ed - <rustc_const_eval[cd894b41dc4d9422]::check_consts::check::Checker>::qualifs_in_return_place
[INFO] [stderr]   20:     0x773d2e8acea1 - rustc_mir_transform[cb32fb3fd702d284]::mir_const_qualif
[INFO] [stderr]   21:     0x773d2e8acd25 - rustc_query_impl[594353a90e4ed00a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[594353a90e4ed00a]::query_impl::mir_const_qualif::dynamic_query::{closure#2}::{closure#0}, rustc_middle[1a91424c2bbde99c]::query::erase::Erased<[u8; 4usize]>>
[INFO] [stderr]   22:     0x773d2e8ac18f - rustc_query_system[237403b851d1f04e]::query::plumbing::try_execute_query::<rustc_query_impl[594353a90e4ed00a]::DynamicConfig<rustc_query_system[237403b851d1f04e]::query::caches::DefIdCache<rustc_middle[1a91424c2bbde99c]::query::erase::Erased<[u8; 4usize]>>, false, false, false>, rustc_query_impl[594353a90e4ed00a]::plumbing::QueryCtxt, false>
[INFO] [stderr]   23:     0x773d2e8abf06 - rustc_query_impl[594353a90e4ed00a]::query_impl::mir_const_qualif::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   24:     0x773d2b8ec7b3 - rustc_mir_transform[cb32fb3fd702d284]::mir_promoted
[INFO] [stderr]   25:     0x773d2e844ad2 - rustc_query_impl[594353a90e4ed00a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[594353a90e4ed00a]::query_impl::mir_promoted::dynamic_query::{closure#2}::{closure#0}, rustc_middle[1a91424c2bbde99c]::query::erase::Erased<[u8; 16usize]>>
[INFO] [stderr]   26:     0x773d2e844d82 - rustc_query_system[237403b851d1f04e]::query::plumbing::try_execute_query::<rustc_query_impl[594353a90e4ed00a]::DynamicConfig<rustc_data_structures[9caa0d58f7ce9ba7]::vec_cache::VecCache<rustc_span[ef2c70c94a270753]::def_id::LocalDefId, rustc_middle[1a91424c2bbde99c]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[237403b851d1f04e]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[594353a90e4ed00a]::plumbing::QueryCtxt, false>
[INFO] [stderr]   27:     0x773d2e8449cc - rustc_query_impl[594353a90e4ed00a]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   28:     0x773d2e2751e8 - rustc_borrowck[6e4de0baa32a3000]::mir_borrowck
[INFO] [stderr]   29:     0x773d2e275099 - rustc_query_impl[594353a90e4ed00a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[594353a90e4ed00a]::query_impl::mir_borrowck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[1a91424c2bbde99c]::query::erase::Erased<[u8; 8usize]>>
[INFO] [stderr]   30:     0x773d2e27416e - rustc_query_system[237403b851d1f04e]::query::plumbing::try_execute_query::<rustc_query_impl[594353a90e4ed00a]::DynamicConfig<rustc_data_structures[9caa0d58f7ce9ba7]::vec_cache::VecCache<rustc_span[ef2c70c94a270753]::def_id::LocalDefId, rustc_middle[1a91424c2bbde99c]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[237403b851d1f04e]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[594353a90e4ed00a]::plumbing::QueryCtxt, false>
[INFO] [stderr]   31:     0x773d2e272849 - rustc_query_impl[594353a90e4ed00a]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   32:     0x773d2e2729f7 - <rustc_middle[1a91424c2bbde99c]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_interface[38afeaf3d937d91b]::passes::run_required_analyses::{closure#1}::{closure#0}>::{closure#0}
[INFO] [stderr]   33:     0x773d2e270372 - rustc_interface[38afeaf3d937d91b]::passes::analysis
[INFO] [stderr]   34:     0x773d2e26f84b - rustc_query_impl[594353a90e4ed00a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[594353a90e4ed00a]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[1a91424c2bbde99c]::query::erase::Erased<[u8; 0usize]>>
[INFO] [stderr]   35:     0x773d2f0721bc - rustc_query_system[237403b851d1f04e]::query::plumbing::try_execute_query::<rustc_query_impl[594353a90e4ed00a]::DynamicConfig<rustc_query_system[237403b851d1f04e]::query::caches::SingleCache<rustc_middle[1a91424c2bbde99c]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[594353a90e4ed00a]::plumbing::QueryCtxt, false>
[INFO] [stderr]   36:     0x773d2f071d86 - rustc_query_impl[594353a90e4ed00a]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   37:     0x773d2f20d956 - rustc_interface[38afeaf3d937d91b]::passes::create_and_enter_global_ctxt::<core[bccd56cae58caab2]::option::Option<rustc_interface[38afeaf3d937d91b]::queries::Linker>, rustc_driver_impl[f0d2268ab262023e]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
[INFO] [stderr]   38:     0x773d2f1ff06f - rustc_interface[38afeaf3d937d91b]::interface::run_compiler::<(), rustc_driver_impl[f0d2268ab262023e]::run_compiler::{closure#0}>::{closure#1}
[INFO] [stderr]   39:     0x773d2f1c7f78 - std[b700f210f1168e2d]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[38afeaf3d937d91b]::util::run_in_thread_with_globals<rustc_interface[38afeaf3d937d91b]::util::run_in_thread_pool_with_globals<rustc_interface[38afeaf3d937d91b]::interface::run_compiler<(), rustc_driver_impl[f0d2268ab262023e]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   40:     0x773d2f1c7c56 - <<std[b700f210f1168e2d]::thread::Builder>::spawn_unchecked_<rustc_interface[38afeaf3d937d91b]::util::run_in_thread_with_globals<rustc_interface[38afeaf3d937d91b]::util::run_in_thread_pool_with_globals<rustc_interface[38afeaf3d937d91b]::interface::run_compiler<(), rustc_driver_impl[f0d2268ab262023e]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[bccd56cae58caab2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   41:     0x773d2f1c627d - std::sys::pal::unix::thread::Thread::new::thread_start::h1779d0329147e8f7
[INFO] [stderr]   42:     0x773d30ab8aa4 - <unknown>
[INFO] [stderr]   43:     0x773d30b45a34 - 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/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/rustc-ice-2025-06-29T23_06_43-59.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.90.0-nightly (998b6603a 2025-06-29) 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 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:232:1: 236:20>::add`
[INFO] [stderr] #1 [mir_promoted] promoting constants in MIR for `<impl at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/src/lib.rs:232:1: 236:20>::add`
[INFO] [stderr] #2 [mir_borrowck] borrow-checking `<impl at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/constvec-0.1.14/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]     Checking bytemuck v1.20.0
[INFO] [stderr] error: could not compile `constvec` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "384c799a9d5175d26c7459cec416672ef99e0f488394ecb4109e221c99c01d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "384c799a9d5175d26c7459cec416672ef99e0f488394ecb4109e221c99c01d32", kill_on_drop: false }`
[INFO] [stdout] 384c799a9d5175d26c7459cec416672ef99e0f488394ecb4109e221c99c01d32