[INFO] fetching crate serialization_minecraft 0.2.13... [INFO] testing serialization_minecraft-0.2.13 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1 [INFO] extracting crate serialization_minecraft 0.2.13 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate serialization_minecraft 0.2.13 [INFO] finished tweaking crates.io crate serialization_minecraft 0.2.13 [INFO] tweaked toml for crates.io crate serialization_minecraft 0.2.13 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate serialization_minecraft 0.2.13 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate serialization_minecraft 0.2.13 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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 470ce11a870697fe115467cad3430ad11dd485a03435ae04539f9cfb4f0ae213 [INFO] running `Command { std: "docker" "start" "-a" "470ce11a870697fe115467cad3430ad11dd485a03435ae04539f9cfb4f0ae213", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "470ce11a870697fe115467cad3430ad11dd485a03435ae04539f9cfb4f0ae213", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "470ce11a870697fe115467cad3430ad11dd485a03435ae04539f9cfb4f0ae213", kill_on_drop: false }` [INFO] [stdout] 470ce11a870697fe115467cad3430ad11dd485a03435ae04539f9cfb4f0ae213 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d6cfb4d33fb2c6390941fc121315473a1dad698afec61a6c50aa67a9f68bc039 [INFO] running `Command { std: "docker" "start" "-a" "d6cfb4d33fb2c6390941fc121315473a1dad698afec61a6c50aa67a9f68bc039", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.92 [INFO] [stderr] Compiling unicode-ident v1.0.14 [INFO] [stderr] Compiling unicode-segmentation v1.12.0 [INFO] [stderr] Compiling serde v1.0.216 [INFO] [stderr] Compiling fastbuf v0.28.0 [INFO] [stderr] Compiling seq-macro v0.3.5 [INFO] [stderr] Compiling uuid v1.11.0 [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 2025-09-25; 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:357:13: expected ConstKind::Param or ConstKind::Value here, found UnevaluatedConst { def: DefId(0:111 ~ constvec[69df]::{impl#8}::add::{constant#2}), args: ['{erased}, '{erased}, T/#2, N1/#3, N2/#4] } [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] thread 'rustc' (51) panicked at compiler/rustc_const_eval/src/check_consts/qualifs.rs:357:13: [INFO] [stderr] Box [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x70ec4c7c3cc3 - ::fmt::hb1988e8b50fa5f19 [INFO] [stderr] 1: 0x70ec4ce020c4 - core::fmt::write::hcd056e06a609f600 [INFO] [stderr] 2: 0x70ec4c778561 - std::io::Write::write_fmt::hc685c74e0b8ce55d [INFO] [stderr] 3: 0x70ec4c789a32 - std::sys::backtrace::BacktraceLock::print::h69f50ba7cfff8317 [INFO] [stderr] 4: 0x70ec4c78f999 - std::panicking::default_hook::{{closure}}::hfa978eb2255ab3ab [INFO] [stderr] 5: 0x70ec4c78f4c3 - std::panicking::default_hook::h09da2eaf8f1deadd [INFO] [stderr] 6: 0x70ec4b7b24d7 - std[153372ebdbebfe75]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x70ec4c78fdbf - std::panicking::panic_with_hook::h13c40d280d130fd3 [INFO] [stderr] 8: 0x70ec4b7eeda1 - std[153372ebdbebfe75]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 9: 0x70ec4b7e25b6 - std[153372ebdbebfe75]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 10: 0x70ec4b7e0059 - std[153372ebdbebfe75]::panicking::begin_panic:: [INFO] [stderr] 11: 0x70ec4b7fa491 - ::emit_producing_guarantee [INFO] [stderr] 12: 0x70ec4bd8cc9a - rustc_middle[1ffe7d7bfe5c941f]::util::bug::opt_span_bug_fmt::::{closure#0} [INFO] [stderr] 13: 0x70ec4bd8ccfa - rustc_middle[1ffe7d7bfe5c941f]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0} [INFO] [stderr] 14: 0x70ec4bd7b4db - rustc_middle[1ffe7d7bfe5c941f]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !> [INFO] [stderr] 15: 0x70ec4a5e4e40 - rustc_middle[1ffe7d7bfe5c941f]::util::bug::bug_fmt [INFO] [stderr] 16: 0x70ec4eaee60f - rustc_const_eval[e1bccba5c35b6bb9]::check_consts::qualifs::in_operand:: as rustc_middle[1ffe7d7bfe5c941f]::mir::visit::Visitor>::visit_assign::{closure#0}>.cold [INFO] [stderr] 17: 0x70ec4d939ca4 - as rustc_mir_dataflow[e97c117d863c8739]::framework::Analysis>::apply_primary_statement_effect [INFO] [stderr] 18: 0x70ec4d934042 - ::has_mut_interior [INFO] [stderr] 19: 0x70ec4d933486 - rustc_mir_transform[b52ceb3223a3bcd6]::mir_const_qualif [INFO] [stderr] 20: 0x70ec4d933229 - rustc_query_impl[da24849da67b6905]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 21: 0x70ec4d9326cb - rustc_query_system[49cf0dd0a6c4ce54]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[da24849da67b6905]::plumbing::QueryCtxt, false> [INFO] [stderr] 22: 0x70ec4d932412 - rustc_query_impl[da24849da67b6905]::query_impl::mir_const_qualif::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 23: 0x70ec49be1e3d - rustc_mir_transform[b52ceb3223a3bcd6]::mir_promoted [INFO] [stderr] 24: 0x70ec4d7a3b52 - rustc_query_impl[da24849da67b6905]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 25: 0x70ec4d7a3dfe - rustc_query_system[49cf0dd0a6c4ce54]::query::plumbing::try_execute_query::, rustc_query_system[49cf0dd0a6c4ce54]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[da24849da67b6905]::plumbing::QueryCtxt, false> [INFO] [stderr] 26: 0x70ec4d7a3992 - rustc_query_impl[da24849da67b6905]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 27: 0x70ec4dfd54e3 - rustc_borrowck[4370520312c02174]::mir_borrowck [INFO] [stderr] 28: 0x70ec4dfd539d - rustc_query_impl[da24849da67b6905]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 29: 0x70ec4cfc7a44 - rustc_query_system[49cf0dd0a6c4ce54]::query::plumbing::try_execute_query::, rustc_query_system[49cf0dd0a6c4ce54]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[da24849da67b6905]::plumbing::QueryCtxt, false> [INFO] [stderr] 30: 0x70ec4cfcc389 - rustc_query_impl[da24849da67b6905]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 31: 0x70ec4cfcc53c - ::par_hir_body_owners::::{closure#0} [INFO] [stderr] 32: 0x70ec4cfc994c - rustc_interface[47f772b6099a9839]::passes::analysis [INFO] [stderr] 33: 0x70ec4cfc8ded - rustc_query_impl[da24849da67b6905]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 34: 0x70ec4ddff71a - rustc_query_system[49cf0dd0a6c4ce54]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[da24849da67b6905]::plumbing::QueryCtxt, false> [INFO] [stderr] 35: 0x70ec4ddff350 - rustc_query_impl[da24849da67b6905]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 36: 0x70ec4e06e94f - rustc_interface[47f772b6099a9839]::passes::create_and_enter_global_ctxt::, rustc_driver_impl[d0107cd3ad6513d0]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0} [INFO] [stderr] 37: 0x70ec4e06033e - rustc_interface[47f772b6099a9839]::interface::run_compiler::<(), rustc_driver_impl[d0107cd3ad6513d0]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 38: 0x70ec4df6cdb8 - std[153372ebdbebfe75]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 39: 0x70ec4df6ca9c - <::spawn_unchecked_::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[273ca2994e9d09f7]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 40: 0x70ec4df7314d - std::sys::thread::unix::Thread::new::thread_start::he23d038ee4fa004e [INFO] [stderr] 41: 0x70ec47a65aa4 - [INFO] [stderr] 42: 0x70ec47af2a34 - 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-2025-10-01T18_48_58-39.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.92.0-nightly (2440211fe 2025-09-25) 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" "d6cfb4d33fb2c6390941fc121315473a1dad698afec61a6c50aa67a9f68bc039", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6cfb4d33fb2c6390941fc121315473a1dad698afec61a6c50aa67a9f68bc039", kill_on_drop: false }` [INFO] [stdout] d6cfb4d33fb2c6390941fc121315473a1dad698afec61a6c50aa67a9f68bc039