[INFO] fetching crate serialization_minecraft 0.2.13... [INFO] building serialization_minecraft-0.2.13 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2 [INFO] extracting crate serialization_minecraft 0.2.13 into /workspace/builds/worker-7-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-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate serialization_minecraft 0.2.13 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded nonmax v0.5.5 [INFO] [stderr] Downloaded serialization_derive v0.2.13 [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 fastvarint v0.22.0 [INFO] [stderr] Downloaded serialization v0.2.13 [INFO] [stderr] Downloaded derive_more v1.0.0 [INFO] [stderr] Downloaded convert_case v0.6.0 [INFO] [stderr] Downloaded proc-macro2 v1.0.92 [INFO] [stderr] Downloaded quote v1.0.37 [INFO] [stderr] Downloaded uuid v1.11.0 [INFO] [stderr] Downloaded concat-idents v1.1.5 [INFO] [stderr] Downloaded derive_more-impl v1.0.0 [INFO] [stderr] Downloaded serde_derive v1.0.216 [INFO] [stderr] Downloaded serde v1.0.216 [INFO] [stderr] Downloaded fastbuf v0.28.0 [INFO] [stderr] Downloaded concat-idents-bruce0203 v1.1.6 [INFO] [stderr] Downloaded syn v2.0.90 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4173f0083a90ea0f4d9f8fbc4eeb108bdd1acdc34e5030d9aa8a530ac8b81b7a [INFO] running `Command { std: "docker" "start" "-a" "4173f0083a90ea0f4d9f8fbc4eeb108bdd1acdc34e5030d9aa8a530ac8b81b7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4173f0083a90ea0f4d9f8fbc4eeb108bdd1acdc34e5030d9aa8a530ac8b81b7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4173f0083a90ea0f4d9f8fbc4eeb108bdd1acdc34e5030d9aa8a530ac8b81b7a", kill_on_drop: false }` [INFO] [stdout] 4173f0083a90ea0f4d9f8fbc4eeb108bdd1acdc34e5030d9aa8a530ac8b81b7a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e716acb83bc4f0f7e4462562a7fb66d0bbe95cef36c57d2dac5519200b8add2d [INFO] running `Command { std: "docker" "start" "-a" "e716acb83bc4f0f7e4462562a7fb66d0bbe95cef36c57d2dac5519200b8add2d", 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 unicode-segmentation v1.12.0 [INFO] [stderr] Compiling unicode-xid v0.2.6 [INFO] [stderr] Compiling constvec v0.1.14 [INFO] [stderr] Compiling arrayvec v0.7.6 [INFO] [stderr] Compiling fastbuf v0.28.0 [INFO] [stderr] Compiling uuid v1.11.0 [INFO] [stderr] Compiling seq-macro v0.3.5 [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 2025-09-28; 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[98f3]::{impl#8}::add::{constant#2}), args: ['{erased}, '{erased}, T/#2, N1/#3, N2/#4] } [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] thread 'rustc' (97) panicked at compiler/rustc_const_eval/src/check_consts/qualifs.rs:357:13: [INFO] [stderr] Box [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7696a2387e43 - ::fmt::h8094475e363f1053 [INFO] [stderr] 1: 0x7696a2a02058 - core::fmt::write::h501eb1fe28dabfbb [INFO] [stderr] 2: 0x7696a233c9a1 - std::io::Write::write_fmt::h8b96bc323947a405 [INFO] [stderr] 3: 0x7696a234ddf2 - std::sys::backtrace::BacktraceLock::print::h7aea9e658d3d67e5 [INFO] [stderr] 4: 0x7696a2353c89 - std::panicking::default_hook::{{closure}}::h9182baa5e2ff55c0 [INFO] [stderr] 5: 0x7696a23537b3 - std::panicking::default_hook::hfb4945b05f344c7f [INFO] [stderr] 6: 0x7696a137dfc7 - std[9edec1ee9f07dda5]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x7696a23540af - std::panicking::panic_with_hook::h56e601fd3ec36096 [INFO] [stderr] 8: 0x7696a13b9f01 - std[9edec1ee9f07dda5]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 9: 0x7696a13ae1b6 - std[9edec1ee9f07dda5]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 10: 0x7696a13ab3f4 - std[9edec1ee9f07dda5]::panicking::begin_panic:: [INFO] [stderr] 11: 0x7696a13c5301 - ::emit_producing_guarantee [INFO] [stderr] 12: 0x7696a195af8a - rustc_middle[e11de0225c5bea74]::util::bug::opt_span_bug_fmt::::{closure#0} [INFO] [stderr] 13: 0x7696a195b14a - rustc_middle[e11de0225c5bea74]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0} [INFO] [stderr] 14: 0x7696a1949dbb - rustc_middle[e11de0225c5bea74]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !> [INFO] [stderr] 15: 0x7696a00cedb0 - rustc_middle[e11de0225c5bea74]::util::bug::bug_fmt [INFO] [stderr] 16: 0x7696a4660a0f - rustc_const_eval[9c0341fb0bccd87f]::check_consts::qualifs::in_operand:: as rustc_middle[e11de0225c5bea74]::mir::visit::Visitor>::visit_assign::{closure#0}>.cold [INFO] [stderr] 17: 0x7696a34fd164 - as rustc_mir_dataflow[e8b45d7db3c894d8]::framework::Analysis>::apply_primary_statement_effect [INFO] [stderr] 18: 0x7696a34f7502 - ::has_mut_interior [INFO] [stderr] 19: 0x7696a34f6946 - rustc_mir_transform[74b638525f7a681]::mir_const_qualif [INFO] [stderr] 20: 0x7696a34f66e9 - rustc_query_impl[671f1fe9ee7d0b8b]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 21: 0x7696a34f5b8b - rustc_query_system[105219cf7ca4483d]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[671f1fe9ee7d0b8b]::plumbing::QueryCtxt, false> [INFO] [stderr] 22: 0x7696a34f58ca - rustc_query_impl[671f1fe9ee7d0b8b]::query_impl::mir_const_qualif::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 23: 0x7696a0074888 - rustc_mir_transform[74b638525f7a681]::mir_promoted [INFO] [stderr] 24: 0x7696a31d9992 - rustc_query_impl[671f1fe9ee7d0b8b]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 25: 0x7696a31d9c3e - rustc_query_system[105219cf7ca4483d]::query::plumbing::try_execute_query::, rustc_query_system[105219cf7ca4483d]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[671f1fe9ee7d0b8b]::plumbing::QueryCtxt, false> [INFO] [stderr] 26: 0x7696a31d97dc - rustc_query_impl[671f1fe9ee7d0b8b]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 27: 0x7696a3b8b4a3 - rustc_borrowck[d0881a8d30312720]::mir_borrowck [INFO] [stderr] 28: 0x7696a3b8b367 - rustc_query_impl[671f1fe9ee7d0b8b]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 29: 0x7696a2c28744 - rustc_query_system[105219cf7ca4483d]::query::plumbing::try_execute_query::, rustc_query_system[105219cf7ca4483d]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[671f1fe9ee7d0b8b]::plumbing::QueryCtxt, false> [INFO] [stderr] 30: 0x7696a2c2d049 - rustc_query_impl[671f1fe9ee7d0b8b]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 31: 0x7696a2c2d1fc - ::par_hir_body_owners::::{closure#0} [INFO] [stderr] 32: 0x7696a2c2a64c - rustc_interface[7ea3ce3416e76085]::passes::analysis [INFO] [stderr] 33: 0x7696a2c29ae7 - rustc_query_impl[671f1fe9ee7d0b8b]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 34: 0x7696a39cc4e6 - rustc_query_system[105219cf7ca4483d]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[671f1fe9ee7d0b8b]::plumbing::QueryCtxt, false> [INFO] [stderr] 35: 0x7696a39cc13c - rustc_query_impl[671f1fe9ee7d0b8b]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 36: 0x7696a3bef98f - rustc_interface[7ea3ce3416e76085]::passes::create_and_enter_global_ctxt::, rustc_driver_impl[c1a009d43dae9f37]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0} [INFO] [stderr] 37: 0x7696a3c0898d - rustc_interface[7ea3ce3416e76085]::interface::run_compiler::<(), rustc_driver_impl[c1a009d43dae9f37]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 38: 0x7696a3b0c6f8 - std[9edec1ee9f07dda5]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 39: 0x7696a3b0c3dc - <::spawn_unchecked_::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[a15bbc9e764644e7]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 40: 0x7696a3b1290d - std::sys::thread::unix::Thread::new::thread_start::hd7d694756425ed79 [INFO] [stderr] 41: 0x76969d68aaa4 - [INFO] [stderr] 42: 0x76969d717a34 - clone [INFO] [stderr] 43: 0x0 - [INFO] [stderr] [INFO] [stderr] Compiling num-traits v0.2.19 [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-2025-09-29T21_49_18-92.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.92.0-nightly (c7f6aa286 2025-09-28) 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] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [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" "e716acb83bc4f0f7e4462562a7fb66d0bbe95cef36c57d2dac5519200b8add2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e716acb83bc4f0f7e4462562a7fb66d0bbe95cef36c57d2dac5519200b8add2d", kill_on_drop: false }` [INFO] [stdout] e716acb83bc4f0f7e4462562a7fb66d0bbe95cef36c57d2dac5519200b8add2d