[INFO] fetching crate serialization_minecraft 0.2.13... [INFO] testing serialization_minecraft-0.2.13 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8 [INFO] extracting crate serialization_minecraft 0.2.13 into /workspace/builds/worker-6-tc1/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-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate serialization_minecraft 0.2.13 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded seq-macro v0.3.5 [INFO] [stderr] Downloaded unicode-ident v1.0.14 [INFO] [stderr] Downloaded constvec v0.1.14 [INFO] [stderr] Downloaded quote v1.0.37 [INFO] [stderr] Downloaded concat-idents v1.1.5 [INFO] [stderr] Downloaded fastbuf v0.28.0 [INFO] [stderr] Downloaded serde_derive v1.0.216 [INFO] [stderr] Downloaded concat-idents-bruce0203 v1.1.6 [INFO] [stderr] Downloaded convert_case v0.6.0 [INFO] [stderr] Downloaded fastvarint v0.22.0 [INFO] [stderr] Downloaded serde v1.0.216 [INFO] [stderr] Downloaded uuid v1.11.0 [INFO] [stderr] Downloaded nonmax v0.5.5 [INFO] [stderr] Downloaded proc-macro2 v1.0.92 [INFO] [stderr] Downloaded serialization_derive v0.2.13 [INFO] [stderr] Downloaded serialization v0.2.13 [INFO] [stderr] Downloaded syn v2.0.90 [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 478ff949a8ffc4fc92185e78f13e022e177cd72aa5a5d164bff4e820bb7ab58a [INFO] running `Command { std: "docker" "start" "-a" "478ff949a8ffc4fc92185e78f13e022e177cd72aa5a5d164bff4e820bb7ab58a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "478ff949a8ffc4fc92185e78f13e022e177cd72aa5a5d164bff4e820bb7ab58a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "478ff949a8ffc4fc92185e78f13e022e177cd72aa5a5d164bff4e820bb7ab58a", kill_on_drop: false }` [INFO] [stdout] 478ff949a8ffc4fc92185e78f13e022e177cd72aa5a5d164bff4e820bb7ab58a [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f39ad75f09730c6f8eeae8d68875c617660d7fc34280ce2c6e0f7e6a086e0464 [INFO] running `Command { std: "docker" "start" "-a" "f39ad75f09730c6f8eeae8d68875c617660d7fc34280ce2c6e0f7e6a086e0464", 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 autocfg v1.4.0 [INFO] [stderr] Compiling seq-macro v0.3.5 [INFO] [stderr] Compiling fastbuf v0.28.0 [INFO] [stderr] Compiling convert_case v0.6.0 [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 2025-11-06; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling uuid v1.11.0 [INFO] [stderr] Compiling arrayvec v0.7.6 [INFO] [stdout] error: internal compiler error: compiler/rustc_const_eval/src/check_consts/qualifs.rs:356:13: expected ConstKind::Param or ConstKind::Value here, found UnevaluatedConst { def: DefId(0:111 ~ constvec[f2c7]::{impl#8}::add::{constant#2}), args: ['{erased}, '{erased}, T/#2, N1/#3, N2/#4] } [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] thread 'rustc' (54) panicked at compiler/rustc_const_eval/src/check_consts/qualifs.rs:356:13: [INFO] [stderr] Box [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7a210fa5f223 - ::fmt::hde21067283f7e82e [INFO] [stderr] 1: 0x7a2110201afc - core::fmt::write::h24186904251c31cb [INFO] [stderr] 2: 0x7a210fa13d93 - std::io::Write::write_fmt::h3ab9f1f4d8d19b72 [INFO] [stderr] 3: 0x7a210fa253a2 - std::sys::backtrace::BacktraceLock::print::he038489aba5894a6 [INFO] [stderr] 4: 0x7a210fa2b3f9 - std::panicking::default_hook::{{closure}}::h80a26d916c49679b [INFO] [stderr] 5: 0x7a210fa2af23 - std::panicking::default_hook::he2e9efee79b3dce9 [INFO] [stderr] 6: 0x7a210ea20c91 - std[e95ebcffb71a5621]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x7a210fa2b81f - std::panicking::panic_with_hook::hf5648b7cec6bc73e [INFO] [stderr] 8: 0x7a210ea5cb31 - std[e95ebcffb71a5621]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 9: 0x7a210ea4f386 - std[e95ebcffb71a5621]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 10: 0x7a210ea4efc7 - std[e95ebcffb71a5621]::panicking::begin_panic:: [INFO] [stderr] 11: 0x7a210ea7b161 - ::emit_producing_guarantee [INFO] [stderr] 12: 0x7a210f0025fa - rustc_middle[9ce76f953d15e2f6]::util::bug::opt_span_bug_fmt::::{closure#0} [INFO] [stderr] 13: 0x7a210f00277a - rustc_middle[9ce76f953d15e2f6]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0} [INFO] [stderr] 14: 0x7a210eff318b - rustc_middle[9ce76f953d15e2f6]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !> [INFO] [stderr] 15: 0x7a210cd7a660 - rustc_middle[9ce76f953d15e2f6]::util::bug::bug_fmt [INFO] [stderr] 16: 0x7a21121021bf - rustc_const_eval[f0d238b946b9d476]::check_consts::qualifs::in_operand:: as rustc_middle[9ce76f953d15e2f6]::mir::visit::Visitor>::visit_assign::{closure#0}>.cold [INFO] [stderr] 17: 0x7a211123f078 - as rustc_mir_dataflow[d19a0a9e8987d32a]::framework::Analysis>::apply_primary_statement_effect [INFO] [stderr] 18: 0x7a2110eafd8f - ::has_mut_interior [INFO] [stderr] 19: 0x7a2110eaf061 - rustc_mir_transform[2a90306ef82b18fe]::mir_const_qualif [INFO] [stderr] 20: 0x7a2110eaede9 - rustc_query_impl[8ae232d5147ca84e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 21: 0x7a2110eae28b - rustc_query_system[41b9c06994168e52]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8ae232d5147ca84e]::plumbing::QueryCtxt, false> [INFO] [stderr] 22: 0x7a2110eadfca - rustc_query_impl[8ae232d5147ca84e]::query_impl::mir_const_qualif::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 23: 0x7a210d5f403f - rustc_mir_transform[2a90306ef82b18fe]::mir_promoted [INFO] [stderr] 24: 0x7a2110c6a512 - rustc_query_impl[8ae232d5147ca84e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 25: 0x7a2110c6a7d1 - rustc_query_system[41b9c06994168e52]::query::plumbing::try_execute_query::, rustc_query_system[41b9c06994168e52]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[8ae232d5147ca84e]::plumbing::QueryCtxt, false> [INFO] [stderr] 26: 0x7a2110c6a34c - rustc_query_impl[8ae232d5147ca84e]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 27: 0x7a2111273fc0 - rustc_borrowck[82a703254c15f188]::mir_borrowck [INFO] [stderr] 28: 0x7a2111273f19 - rustc_query_impl[8ae232d5147ca84e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 29: 0x7a211052b977 - rustc_query_system[41b9c06994168e52]::query::plumbing::try_execute_query::, rustc_query_system[41b9c06994168e52]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[8ae232d5147ca84e]::plumbing::QueryCtxt, false> [INFO] [stderr] 30: 0x7a211052480b - rustc_query_impl[8ae232d5147ca84e]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 31: 0x7a2110524a37 - ::par_hir_body_owners::::{closure#0} [INFO] [stderr] 32: 0x7a21105222d8 - rustc_interface[d5ff205a9ab97820]::passes::analysis [INFO] [stderr] 33: 0x7a2110521773 - rustc_query_impl[8ae232d5147ca84e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 34: 0x7a211129d360 - rustc_query_system[41b9c06994168e52]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8ae232d5147ca84e]::plumbing::QueryCtxt, false> [INFO] [stderr] 35: 0x7a211129cfb6 - rustc_query_impl[8ae232d5147ca84e]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 36: 0x7a211155a00a - , rustc_driver_impl[8bc3447375e6b2d8]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[a4c7c2348b0f0abe]::ops::function::FnOnce<(&rustc_session[84c9ddeb8f325268]::session::Session, rustc_middle[9ce76f953d15e2f6]::ty::context::CurrentGcx, alloc[6ba2be5df7d20276]::sync::Arc, &std[e95ebcffb71a5621]::sync::once_lock::OnceLock, &rustc_data_structures[de67cf687b97999a]::sync::worker_local::WorkerLocal, &rustc_data_structures[de67cf687b97999a]::sync::worker_local::WorkerLocal, rustc_driver_impl[8bc3447375e6b2d8]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0} [INFO] [stderr] 37: 0x7a21113fbfe9 - rustc_interface[d5ff205a9ab97820]::interface::run_compiler::<(), rustc_driver_impl[8bc3447375e6b2d8]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 38: 0x7a2111090e3c - std[e95ebcffb71a5621]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 39: 0x7a2111090b20 - <::spawn_unchecked_::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[a4c7c2348b0f0abe]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 40: 0x7a2111095daf - std::sys::thread::unix::Thread::new::thread_start::hb3dc6483caa1b987 [INFO] [stderr] 41: 0x7a210ac8aaa4 - [INFO] [stderr] 42: 0x7a210ad17a64 - 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-2025-11-13T22_12_55-31.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.93.0-nightly (c90bcb957 2025-11-06) 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] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [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 crate `constvec` [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" "f39ad75f09730c6f8eeae8d68875c617660d7fc34280ce2c6e0f7e6a086e0464", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f39ad75f09730c6f8eeae8d68875c617660d7fc34280ce2c6e0f7e6a086e0464", kill_on_drop: false }` [INFO] [stdout] f39ad75f09730c6f8eeae8d68875c617660d7fc34280ce2c6e0f7e6a086e0464