[INFO] fetching crate serialization 0.2.12... [INFO] testing serialization-0.2.12 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1 [INFO] extracting crate serialization 0.2.12 into /workspace/builds/worker-2-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-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate serialization 0.2.12 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 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serialization_derive v0.2.12 [INFO] [stderr] Downloaded fastbuf v0.28.0 [INFO] [stderr] Downloaded rkyv_derive v0.8.9 [INFO] [stderr] Downloaded fastvarint v0.22.0 [INFO] [stderr] Downloaded seq-macro v0.3.5 [INFO] [stderr] Downloaded constvec v0.1.14 [INFO] [stderr] Downloaded concat-idents-bruce0203 v1.1.6 [INFO] [stderr] Downloaded bitcode_derive v0.6.3 [INFO] [stderr] Downloaded bitcode v0.6.3 [INFO] [stderr] Downloaded bytemuck v1.20.0 [INFO] [stderr] Downloaded rkyv v0.8.9 [INFO] [stderr] Downloaded libc v0.2.168 [INFO] [stderr] Downloaded glam v0.29.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c09538916a52a550faae8c7abaa81a8d8b06c2798186924ca8cc444e7d6c0257 [INFO] running `Command { std: "docker" "start" "-a" "c09538916a52a550faae8c7abaa81a8d8b06c2798186924ca8cc444e7d6c0257", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c09538916a52a550faae8c7abaa81a8d8b06c2798186924ca8cc444e7d6c0257", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c09538916a52a550faae8c7abaa81a8d8b06c2798186924ca8cc444e7d6c0257", kill_on_drop: false }` [INFO] [stdout] c09538916a52a550faae8c7abaa81a8d8b06c2798186924ca8cc444e7d6c0257 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 540d850ac46f78447dcf7501b1821c9e7d73b3aabf4c71259fcd9398f8681f1c [INFO] running `Command { std: "docker" "start" "-a" "540d850ac46f78447dcf7501b1821c9e7d73b3aabf4c71259fcd9398f8681f1c", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.216 [INFO] [stderr] Compiling fastbuf v0.28.0 [INFO] [stderr] Compiling constvec v0.1.14 [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 syn v2.0.90 [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 2025-08-13; 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[5e1c]::{impl#8}::add::{constant#2}), args: ['{erased}, '{erased}, T/#2, N1/#3, N2/#4] } [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] thread 'rustc' (55) panicked at compiler/rustc_const_eval/src/check_consts/qualifs.rs:359:13: [INFO] [stderr] Box [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7679de1e5a43 - ::fmt::hff1a9408d012ee89 [INFO] [stderr] 1: 0x7679dea01bfc - core::fmt::write::h2f1fc679f228cc52 [INFO] [stderr] 2: 0x7679de1d0493 - std::io::Write::write_fmt::haa2231cbd9aebf95 [INFO] [stderr] 3: 0x7679de1e58a2 - std::sys::backtrace::BacktraceLock::print::h28bfdbcac6d3828b [INFO] [stderr] 4: 0x7679de1c7c1f - std::panicking::default_hook::{{closure}}::h1f968e3a24b0e3b4 [INFO] [stderr] 5: 0x7679de1c774b - std::panicking::default_hook::h43da101644971931 [INFO] [stderr] 6: 0x7679dd2491b5 - std[619c96d97fe952c]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x7679de1c8313 - std::panicking::panic_with_hook::hb4e916c3e65eccec [INFO] [stderr] 8: 0x7679dd282991 - std[619c96d97fe952c]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 9: 0x7679dd282966 - std[619c96d97fe952c]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 10: 0x7679dd280ad6 - std[619c96d97fe952c]::panicking::begin_panic:: [INFO] [stderr] 11: 0x7679dd26d2f1 - ::emit_producing_guarantee [INFO] [stderr] 12: 0x7679dd871b0a - rustc_middle[5ca2e9449305faae]::util::bug::opt_span_bug_fmt::::{closure#0} [INFO] [stderr] 13: 0x7679dd871a4a - rustc_middle[5ca2e9449305faae]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0} [INFO] [stderr] 14: 0x7679dd871a1b - rustc_middle[5ca2e9449305faae]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !> [INFO] [stderr] 15: 0x7679da8db400 - rustc_middle[5ca2e9449305faae]::util::bug::bug_fmt [INFO] [stderr] 16: 0x7679e07a5d7e - rustc_const_eval[3f4a307b89f74717]::check_consts::qualifs::in_operand:: as rustc_middle[5ca2e9449305faae]::mir::visit::Visitor>::visit_assign::{closure#0}>.cold [INFO] [stderr] 17: 0x7679e01f23c3 - as rustc_mir_dataflow[5040f7219595d37d]::framework::Analysis>::apply_primary_statement_effect.warm [INFO] [stderr] 18: 0x7679df660e49 - ::has_mut_interior [INFO] [stderr] 19: 0x7679df66092d - ::qualifs_in_return_place [INFO] [stderr] 20: 0x7679df6601e1 - rustc_mir_transform[8d0e0ad626ae1553]::mir_const_qualif [INFO] [stderr] 21: 0x7679df660065 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 22: 0x7679df65f4e9 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false> [INFO] [stderr] 23: 0x7679df65f248 - rustc_query_impl[e2f117ce3af55616]::query_impl::mir_const_qualif::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 24: 0x7679dbfc0e8f - rustc_mir_transform[8d0e0ad626ae1553]::mir_promoted [INFO] [stderr] 25: 0x7679df1f9fd2 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 26: 0x7679df1fa296 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::, rustc_query_system[c907f34f82b7658f]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false> [INFO] [stderr] 27: 0x7679df1f9e0c - rustc_query_impl[e2f117ce3af55616]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 28: 0x7679dfc0de2e - rustc_borrowck[771eeab328fec4ea]::mir_borrowck [INFO] [stderr] 29: 0x7679dfc0dcd9 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 30: 0x7679decb1585 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::, rustc_query_system[c907f34f82b7658f]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false> [INFO] [stderr] 31: 0x7679decafbe7 - rustc_query_impl[e2f117ce3af55616]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 32: 0x7679decafd8d - ::par_hir_body_owners::::{closure#0} [INFO] [stderr] 33: 0x7679decad583 - rustc_interface[b77c32c3bfe8d9]::passes::analysis [INFO] [stderr] 34: 0x7679decaca39 - rustc_query_impl[e2f117ce3af55616]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 35: 0x7679dfaad726 - rustc_query_system[c907f34f82b7658f]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[e2f117ce3af55616]::plumbing::QueryCtxt, false> [INFO] [stderr] 36: 0x7679dfaad37c - rustc_query_impl[e2f117ce3af55616]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 37: 0x7679dfb8ed8b - rustc_interface[b77c32c3bfe8d9]::passes::create_and_enter_global_ctxt::, rustc_driver_impl[c8262843f73b2e4e]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0} [INFO] [stderr] 38: 0x7679dfbefe03 - rustc_interface[b77c32c3bfe8d9]::interface::run_compiler::<(), rustc_driver_impl[c8262843f73b2e4e]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 39: 0x7679dfb4e7fb - std[619c96d97fe952c]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 40: 0x7679dfb4e4d4 - <::spawn_unchecked_::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[b7f6e7468eb674bd]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 41: 0x7679dfb4a28b - std::sys::pal::unix::thread::Thread::new::thread_start::h66ff1bba185a50cf [INFO] [stderr] 42: 0x7679d948aaa4 - [INFO] [stderr] 43: 0x7679d9517a34 - clone [INFO] [stderr] 44: 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-2025-10-02T05_18_37-30.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 `::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] [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 [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "540d850ac46f78447dcf7501b1821c9e7d73b3aabf4c71259fcd9398f8681f1c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "540d850ac46f78447dcf7501b1821c9e7d73b3aabf4c71259fcd9398f8681f1c", kill_on_drop: false }` [INFO] [stdout] 540d850ac46f78447dcf7501b1821c9e7d73b3aabf4c71259fcd9398f8681f1c