[INFO] fetching crate constvec 0.1.14... [INFO] testing constvec-0.1.14 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1 [INFO] extracting crate constvec 0.1.14 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate constvec 0.1.14 [INFO] finished tweaking crates.io crate constvec 0.1.14 [INFO] tweaked toml for crates.io crate constvec 0.1.14 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate constvec 0.1.14 on toolchain b83b707f97d809763b7861afa7638871f3339a33 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate constvec 0.1.14 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a5b6d9785c489aba7d8bd60138a004504f36268bd8ac25f4cbf47ce56ec730cc [INFO] running `Command { std: "docker" "start" "-a" "a5b6d9785c489aba7d8bd60138a004504f36268bd8ac25f4cbf47ce56ec730cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a5b6d9785c489aba7d8bd60138a004504f36268bd8ac25f4cbf47ce56ec730cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a5b6d9785c489aba7d8bd60138a004504f36268bd8ac25f4cbf47ce56ec730cc", kill_on_drop: false }` [INFO] [stdout] a5b6d9785c489aba7d8bd60138a004504f36268bd8ac25f4cbf47ce56ec730cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f047674dfc6ccf4397b2e4287bb3896e21af3629fac3ba21cad8f65e64e6a833 [INFO] running `Command { std: "docker" "start" "-a" "f047674dfc6ccf4397b2e4287bb3896e21af3629fac3ba21cad8f65e64e6a833", kill_on_drop: false }` [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] = help: consider using `min_specialization` instead, which is more stable and complete [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling constvec v0.1.14 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:4:12 [INFO] [stdout] | [INFO] [stdout] 4 | #![feature(generic_const_exprs)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #76560 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable const library feature `const_ops` [INFO] [stdout] --> 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 2025-08-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_copy_from_slice` has been stable since 1.87.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(const_copy_from_slice)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Pointer` [INFO] [stdout] --> src/lib.rs:8:18 [INFO] [stdout] | [INFO] [stdout] 8 | fmt::{Debug, Pointer}, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [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[f66f]::{impl#8}::add::{constant#2}), args: ['{erased}, '{erased}, T/#2, N1/#3, N2/#4] } [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' (27) panicked at compiler/rustc_const_eval/src/check_consts/qualifs.rs:359:13: [INFO] [stderr] Box [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7dde1b669fe3 - ::fmt::hffd20ad4e5eca8ab [INFO] [stderr] 1: 0x7dde1be01998 - core::fmt::write::h6d9d3a7cfd7b84f5 [INFO] [stderr] 2: 0x7dde1b61f043 - std::io::Write::write_fmt::h22459ad26fe60c51 [INFO] [stderr] 3: 0x7dde1b630082 - std::sys::backtrace::BacktraceLock::print::hb28797143397220e [INFO] [stderr] 4: 0x7dde1b635f29 - std::panicking::default_hook::{{closure}}::h7555113b62983743 [INFO] [stderr] 5: 0x7dde1b635a53 - std::panicking::default_hook::h2714b564abe8d914 [INFO] [stderr] 6: 0x7dde1a68cbb5 - std[873cba99d9e73db4]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 7: 0x7dde1b6363de - std::panicking::panic_with_hook::h190dc82263685ec5 [INFO] [stderr] 8: 0x7dde1a6c9451 - std[873cba99d9e73db4]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 9: 0x7dde1a6bd736 - std[873cba99d9e73db4]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 10: 0x7dde1a6bccc7 - std[873cba99d9e73db4]::panicking::begin_panic:: [INFO] [stderr] 11: 0x7dde1a6d4b91 - ::emit_producing_guarantee [INFO] [stderr] 12: 0x7dde1ac8116a - rustc_middle[bfbecec5fbf20b13]::util::bug::opt_span_bug_fmt::::{closure#0} [INFO] [stderr] 13: 0x7dde1ac8132a - rustc_middle[bfbecec5fbf20b13]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0} [INFO] [stderr] 14: 0x7dde1ac6fe5b - rustc_middle[bfbecec5fbf20b13]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !> [INFO] [stderr] 15: 0x7dde17ce5d10 - rustc_middle[bfbecec5fbf20b13]::util::bug::bug_fmt [INFO] [stderr] 16: 0x7dde1dbd18be - rustc_const_eval[34582d101cc7850]::check_consts::qualifs::in_operand:: as rustc_middle[bfbecec5fbf20b13]::mir::visit::Visitor>::visit_assign::{closure#0}>.cold [INFO] [stderr] 17: 0x7dde1ca3bbe4 - as rustc_mir_dataflow[641738797c92baa5]::framework::Analysis>::apply_primary_statement_effect [INFO] [stderr] 18: 0x7dde1ca35f09 - ::has_mut_interior [INFO] [stderr] 19: 0x7dde1ca35346 - rustc_mir_transform[cfd0e357c2256491]::mir_const_qualif [INFO] [stderr] 20: 0x7dde1ca350e5 - rustc_query_impl[25f7106f18e90f5f]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 21: 0x7dde1ca3454b - rustc_query_system[83e4503b382422b2]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[25f7106f18e90f5f]::plumbing::QueryCtxt, false> [INFO] [stderr] 22: 0x7dde1ca34296 - rustc_query_impl[25f7106f18e90f5f]::query_impl::mir_const_qualif::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 23: 0x7dde1913615f - rustc_mir_transform[cfd0e357c2256491]::mir_promoted [INFO] [stderr] 24: 0x7dde1c5efe92 - rustc_query_impl[25f7106f18e90f5f]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 25: 0x7dde1c5f0141 - rustc_query_system[83e4503b382422b2]::query::plumbing::try_execute_query::, rustc_query_system[83e4503b382422b2]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[25f7106f18e90f5f]::plumbing::QueryCtxt, false> [INFO] [stderr] 26: 0x7dde1c5efcd0 - rustc_query_impl[25f7106f18e90f5f]::query_impl::mir_promoted::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 27: 0x7dde1cff272e - rustc_borrowck[1bedce8cd02d38b9]::mir_borrowck [INFO] [stderr] 28: 0x7dde1cff25d9 - rustc_query_impl[25f7106f18e90f5f]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 29: 0x7dde1bfeba05 - rustc_query_system[83e4503b382422b2]::query::plumbing::try_execute_query::, rustc_query_system[83e4503b382422b2]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[25f7106f18e90f5f]::plumbing::QueryCtxt, false> [INFO] [stderr] 30: 0x7dde1bfeb209 - rustc_query_impl[25f7106f18e90f5f]::query_impl::mir_borrowck::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 31: 0x7dde1bfe6249 - ::par_hir_body_owners::::{closure#0} [INFO] [stderr] 32: 0x7dde1bfe3ac3 - rustc_interface[1e61e9ba1f0bb161]::passes::analysis [INFO] [stderr] 33: 0x7dde1bfe2f8b - rustc_query_impl[25f7106f18e90f5f]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 34: 0x7dde1ce7db60 - rustc_query_system[83e4503b382422b2]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[25f7106f18e90f5f]::plumbing::QueryCtxt, false> [INFO] [stderr] 35: 0x7dde1ce7d7b6 - rustc_query_impl[25f7106f18e90f5f]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 36: 0x7dde1d2b080b - rustc_interface[1e61e9ba1f0bb161]::passes::create_and_enter_global_ctxt::, rustc_driver_impl[40330fda428a6899]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0} [INFO] [stderr] 37: 0x7dde1d070de2 - rustc_interface[1e61e9ba1f0bb161]::interface::run_compiler::<(), rustc_driver_impl[40330fda428a6899]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 38: 0x7dde1cf51938 - std[873cba99d9e73db4]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 39: 0x7dde1cf5161c - <::spawn_unchecked_::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[5002542780a992fa]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 40: 0x7dde1cf5774d - std::sys::pal::unix::thread::Thread::new::thread_start::h29c84e109630689a [INFO] [stderr] 41: 0x7dde1688aaa4 - [INFO] [stderr] 42: 0x7dde16917a34 - 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/workdir/rustc-ice-2025-09-01T07_56_50-25.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.91.0-nightly (b83b707f9 2025-08-28) 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] [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; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "f047674dfc6ccf4397b2e4287bb3896e21af3629fac3ba21cad8f65e64e6a833", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f047674dfc6ccf4397b2e4287bb3896e21af3629fac3ba21cad8f65e64e6a833", kill_on_drop: false }` [INFO] [stdout] f047674dfc6ccf4397b2e4287bb3896e21af3629fac3ba21cad8f65e64e6a833