[INFO] fetching crate serialization 0.2.12... [INFO] building serialization-0.2.12 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1 [INFO] extracting crate serialization 0.2.12 into /workspace/builds/worker-1-tc1/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-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate serialization 0.2.12 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded bytecheck v0.8.0 [INFO] [stderr] Downloaded fastvarint v0.22.0 [INFO] [stderr] Downloaded munge_macro v0.4.1 [INFO] [stderr] Downloaded munge v0.4.1 [INFO] [stderr] Downloaded rkyv_derive v0.8.9 [INFO] [stderr] Downloaded constvec v0.1.14 [INFO] [stderr] Downloaded serialization_derive v0.2.12 [INFO] [stderr] Downloaded divan-macros v0.1.17 [INFO] [stderr] Downloaded fastbuf v0.28.0 [INFO] [stderr] Downloaded bytecheck_derive v0.8.0 [INFO] [stderr] Downloaded bitcode_derive v0.6.3 [INFO] [stderr] Downloaded bitcode v0.6.3 [INFO] [stderr] Downloaded condtype v1.3.0 [INFO] [stderr] Downloaded rkyv v0.8.9 [INFO] [stderr] Downloaded divan v0.1.17 [INFO] [stderr] Downloaded bytemuck v1.20.0 [INFO] [stderr] Downloaded concat-idents-bruce0203 v1.1.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3c486e8b6f7370715a1e25caff24d5679faa1ce9c45997c062668500c6978e9a [INFO] running `Command { std: "docker" "start" "-a" "3c486e8b6f7370715a1e25caff24d5679faa1ce9c45997c062668500c6978e9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3c486e8b6f7370715a1e25caff24d5679faa1ce9c45997c062668500c6978e9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c486e8b6f7370715a1e25caff24d5679faa1ce9c45997c062668500c6978e9a", kill_on_drop: false }` [INFO] [stdout] 3c486e8b6f7370715a1e25caff24d5679faa1ce9c45997c062668500c6978e9a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9bb9fecf8e0996a641773372ff8a8c81fafb068b7b9cec6265b831a19270bc37 [INFO] running `Command { std: "docker" "start" "-a" "9bb9fecf8e0996a641773372ff8a8c81fafb068b7b9cec6265b831a19270bc37", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.92 [INFO] [stderr] Compiling unicode-ident v1.0.14 [INFO] [stderr] Compiling serde v1.0.216 [INFO] [stderr] Compiling seq-macro v0.3.5 [INFO] [stderr] Compiling simdutf8 v0.1.5 [INFO] [stderr] Compiling uuid v1.11.0 [INFO] [stderr] Compiling fastbuf v0.28.0 [INFO] [stderr] Compiling constvec v0.1.14 [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 const Add<&ConstVec<[T; N2]>> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ trait is not stable as const yet [INFO] [stdout] | [INFO] [stdout] = note: see issue #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 2025-09-05; consider upgrading it if it is out of date [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[1f52]::{impl#8}::add::{constant#2}), args: ['{erased}, '{erased}, T/#2, N1/#3, N2/#4] } [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] thread 'rustc' (52) panicked at compiler/rustc_const_eval/src/check_consts/qualifs.rs:359:13: [INFO] [stderr] Box [INFO] [stderr] stack backtrace: [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] 0: 0x7ff71e277ee2 - ::fmt::h427144ad75cfb218 [INFO] [stderr] 1: 0x7ff71ea0c5bc - core::fmt::write::h593aaf5adf0f5dae [INFO] [stderr] 2: 0x7ff71e22c011 - std::io::Write::write_fmt::h6e02e29a2bcc97c1 [INFO] [stderr] 3: 0x7ff71e23d7e2 - std::sys::backtrace::BacktraceLock::print::h3953113552dca3ca [INFO] [stderr] 4: 0x7ff71e243ab7 - std::panicking::default_hook::{{closure}}::h486b96ad75eafbb8 [INFO] [stderr] 5: 0x7ff71e2435c3 - std::panicking::default_hook::h99456317c5a1a20c [INFO] [stderr] 6: 0x7ff71d265db1 - std[9e0c03d3291b55ba]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x7ff71e243fbf - std::panicking::panic_with_hook::h67ab0df20212e4ea [INFO] [stderr] 8: 0x7ff71d2a3061 - std[9e0c03d3291b55ba]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 9: 0x7ff71d296aa6 - std[9e0c03d3291b55ba]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 10: 0x7ff71d29693a - std[9e0c03d3291b55ba]::panicking::begin_panic:: [INFO] [stderr] 11: 0x7ff71d2aec81 - ::emit_producing_guarantee [INFO] [stderr] 12: 0x7ff71d85713a - rustc_middle[96aee58410649a71]::util::bug::opt_span_bug_fmt::::{closure#0} [INFO] [stderr] 13: 0x7ff71d85730a - rustc_middle[96aee58410649a71]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0} [INFO] [stderr] 14: 0x7ff71d845a3b - rustc_middle[96aee58410649a71]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !> [INFO] [stderr] 15: 0x7ff71ad30400 - rustc_middle[96aee58410649a71]::util::bug::bug_fmt [INFO] [stderr] 16: 0x7ff7208ae396 - rustc_const_eval[22e13eb06d8b9f39]::check_consts::qualifs::in_operand:: as rustc_middle[96aee58410649a71]::mir::visit::Visitor>::visit_assign::{closure#0}>.cold [INFO] [stderr] 17: 0x7ff71f9a6424 - as rustc_mir_dataflow[722e9691733b3f94]::framework::Analysis>::apply_primary_statement_effect [INFO] [stderr] 18: 0x7ff71f9a0365 - ::has_mut_interior [INFO] [stderr] 19: 0x7ff71f99f808 - rustc_mir_transform[3aa901268ddbb3cc]::mir_const_qualif [INFO] [stderr] 20: 0x7ff71f99f5a5 - rustc_query_impl[c5da8cba9f6f2703]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 21: 0x7ff71f99ea0b - rustc_query_system[15064209a99247ef]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[c5da8cba9f6f2703]::plumbing::QueryCtxt, false> [INFO] [stderr] 22: 0x7ff71f99e74e - rustc_query_impl[c5da8cba9f6f2703]::query_impl::mir_const_qualif::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 23: 0x7ff71b411123 - rustc_mir_transform[3aa901268ddbb3cc]::mir_promoted [INFO] [stderr] 24: 0x7ff71f6995d2 - rustc_query_impl[c5da8cba9f6f2703]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 25: 0x7ff71f699881 - rustc_query_system[15064209a99247ef]::query::plumbing::try_execute_query::, rustc_query_system[15064209a99247ef]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[c5da8cba9f6f2703]::plumbing::QueryCtxt, false> [INFO] [stderr] 26: 0x7ff71f6994ce - rustc_query_impl[c5da8cba9f6f2703]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 27: 0x7ff71f677db0 - rustc_borrowck[18d299dc05610e90]::mir_borrowck [INFO] [stderr] 28: 0x7ff71f677c59 - rustc_query_impl[c5da8cba9f6f2703]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 29: 0x7ff71ebfaf05 - rustc_query_system[15064209a99247ef]::query::plumbing::try_execute_query::, rustc_query_system[15064209a99247ef]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[c5da8cba9f6f2703]::plumbing::QueryCtxt, false> [INFO] [stderr] 30: 0x7ff71ebf23c9 - rustc_query_impl[c5da8cba9f6f2703]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 31: 0x7ff71ebf2589 - ::par_hir_body_owners::::{closure#0} [INFO] [stderr] 32: 0x7ff71ebefb5b - rustc_interface[1cfc5bcce86c5290]::passes::analysis [INFO] [stderr] 33: 0x7ff71ebef00d - rustc_query_impl[c5da8cba9f6f2703]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 34: 0x7ff71facdd48 - rustc_query_system[15064209a99247ef]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[c5da8cba9f6f2703]::plumbing::QueryCtxt, false> [INFO] [stderr] 35: 0x7ff71facd982 - rustc_query_impl[c5da8cba9f6f2703]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 36: 0x7ff71fc1a4b6 - rustc_interface[1cfc5bcce86c5290]::passes::create_and_enter_global_ctxt::, rustc_driver_impl[946d990589dc1fa0]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0} [INFO] [stderr] 37: 0x7ff71fc45745 - rustc_interface[1cfc5bcce86c5290]::interface::run_compiler::<(), rustc_driver_impl[946d990589dc1fa0]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 38: 0x7ff71fbbd503 - std[9e0c03d3291b55ba]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 39: 0x7ff71fbbd1c8 - <::spawn_unchecked_::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[cff83d31b4830cc]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 40: 0x7ff71fbc372f - std::sys::pal::unix::thread::Thread::new::thread_start::h135087e7c97657bc [INFO] [stderr] 41: 0x7ff71948aaa4 - [INFO] [stderr] 42: 0x7ff719517a34 - clone [INFO] [stderr] 43: 0x0 - [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-2025-09-28T02_04_59-38.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.91.0-nightly (ad85bc524 2025-09-05) 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 `::add` [INFO] [stderr] #1 [mir_promoted] promoting constants in MIR for `::add` [INFO] [stderr] #2 [mir_borrowck] borrow-checking `::add` [INFO] [stderr] #3 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [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" "9bb9fecf8e0996a641773372ff8a8c81fafb068b7b9cec6265b831a19270bc37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9bb9fecf8e0996a641773372ff8a8c81fafb068b7b9cec6265b831a19270bc37", kill_on_drop: false }` [INFO] [stdout] 9bb9fecf8e0996a641773372ff8a8c81fafb068b7b9cec6265b831a19270bc37