[INFO] cloning repository https://github.com/sigmaSd/dns_weekend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sigmaSd/dns_weekend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FsigmaSd%2Fdns_weekend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FsigmaSd%2Fdns_weekend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 27f74dc90e5d9a277c2e463801b837141c151e0a
[INFO] checking sigmaSd/dns_weekend/27f74dc90e5d9a277c2e463801b837141c151e0a against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6 for pr-133502-30
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FsigmaSd%2Fdns_weekend" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/sigmaSd/dns_weekend
[INFO] finished tweaking git repo https://github.com/sigmaSd/dns_weekend
[INFO] tweaked toml for git repo https://github.com/sigmaSd/dns_weekend written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sigmaSd/dns_weekend on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sigmaSd/dns_weekend 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 17d3ed74bbc27fab15db76d260a6a9b971a5eee12ab700edb8ac3936c3d82766
[INFO] running `Command { std: "docker" "start" "17d3ed74bbc27fab15db76d260a6a9b971a5eee12ab700edb8ac3936c3d82766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17d3ed74bbc27fab15db76d260a6a9b971a5eee12ab700edb8ac3936c3d82766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "17d3ed74bbc27fab15db76d260a6a9b971a5eee12ab700edb8ac3936c3d82766" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17d3ed74bbc27fab15db76d260a6a9b971a5eee12ab700edb8ac3936c3d82766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "17d3ed74bbc27fab15db76d260a6a9b971a5eee12ab700edb8ac3936c3d82766" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking lab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `feature(generic_const_exprs)` is not supported with the next-generation trait solver
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `-Znext-solver=globally` is currently enabled by default for testing
[INFO] [stdout]   = note: reverted the setting to `-Znext-solver=coherence` for this crate
[INFO] [stdout]   = note: the currently stable trait solver will be used for this crate
[INFO] [stdout]   = note: see issues #160895 <https://github.com/rust-lang/rust/issues/160895> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `feature(generic_const_exprs)` is not supported with the next-generation trait solver
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `-Znext-solver=globally` is currently enabled by default for testing
[INFO] [stdout]   = note: reverted the setting to `-Znext-solver=coherence` for this crate
[INFO] [stdout]   = note: the currently stable trait solver will be used for this crate
[INFO] [stdout]   = note: see issues #160895 <https://github.com/rust-lang/rust/issues/160895> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (70) panicked at /rustc-dev/3154cc1a3e6424e44f438a95007d043ed5ceaaf6/compiler/rustc_infer/src/infer/mod.rs:1705:64:
[INFO] [stderr] internal error: entered unreachable code
[INFO] [stderr] stack backtrace:
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (68) panicked at /rustc-dev/3154cc1a3e6424e44f438a95007d043ed5ceaaf6/compiler/rustc_infer/src/infer/mod.rs:1705:64:
[INFO] [stderr] internal error: entered unreachable code
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7505869fda86 - <<std[3164a59e47d3bde]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[934024a1e6126fb4]::fmt::Display>::fmt
[INFO] [stderr]    0:     0x75c3d19fda86 - <<std[3164a59e47d3bde]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[934024a1e6126fb4]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x75c3d200b58f - core[934024a1e6126fb4]::fmt::write
[INFO] [stderr]    1:     0x75058700b58f - core[934024a1e6126fb4]::fmt::write
[INFO] [stderr]    2:     0x750586a1407c - <std[3164a59e47d3bde]::sys::stdio::unix::Stderr as core[934024a1e6126fb4]::io::write::Write>::write_fmt
[INFO] [stderr]    3:     0x7505869ced4a - std[3164a59e47d3bde]::panicking::default_hook::{closure#0}
[INFO] [stderr]    2:     0x75c3d1a1407c - <std[3164a59e47d3bde]::sys::stdio::unix::Stderr as core[934024a1e6126fb4]::io::write::Write>::write_fmt
[INFO] [stderr]    3:     0x75c3d19ced4a - std[3164a59e47d3bde]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x75c3d19f12c3 - std[3164a59e47d3bde]::panicking::default_hook
[INFO] [stderr]    4:     0x7505869f12c3 - std[3164a59e47d3bde]::panicking::default_hook
[INFO] [stderr]    5:     0x75058576d915 - std[3164a59e47d3bde]::panicking::update_hook::<alloc[b96ed41a801e996d]::boxed::Box<rustc_driver_impl[4d41c45c6d37fa8c]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x7505869f1762 - std[3164a59e47d3bde]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x7505869cee34 - std[3164a59e47d3bde]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x7505869c63a9 - std[3164a59e47d3bde]::sys::backtrace::__rust_end_short_backtrace::<std[3164a59e47d3bde]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x7505869d09dd - __rustc[2e7b49d4226056d3]::rust_begin_unwind
[INFO] [stderr]   10:     0x750583445a5c - core[934024a1e6126fb4]::panicking::panic_fmt
[INFO] [stderr]   11:     0x750583a19492 - core[934024a1e6126fb4]::panicking::panic
[INFO] [stderr]   12:     0x75058737852e - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_const
[INFO] [stderr]   13:     0x750587347bb9 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_const_and_instantiate_projection_term
[INFO] [stderr]    5:     0x75c3d076d915 - std[3164a59e47d3bde]::panicking::update_hook::<alloc[b96ed41a801e996d]::boxed::Box<rustc_driver_impl[4d41c45c6d37fa8c]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x75c3d19f1762 - std[3164a59e47d3bde]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x75c3d19cee34 - std[3164a59e47d3bde]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x75c3d19c63a9 - std[3164a59e47d3bde]::sys::backtrace::__rust_end_short_backtrace::<std[3164a59e47d3bde]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x75c3d19d09dd - __rustc[2e7b49d4226056d3]::rust_begin_unwind
[INFO] [stderr]   10:     0x75c3ce445a5c - core[934024a1e6126fb4]::panicking::panic_fmt
[INFO] [stderr]   11:     0x75c3cea19492 - core[934024a1e6126fb4]::panicking::panic
[INFO] [stderr]   12:     0x75c3d237852e - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_const
[INFO] [stderr]   13:     0x75c3d2347bb9 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_const_and_instantiate_projection_term
[INFO] [stderr]   14:     0x750587ec2651 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal_no_fast_paths
[INFO] [stderr]   14:     0x75c3d2ec2651 - <rustc_next_trait_solver[b3acf562f09fbe6a]::solve::eval_ctxt::EvalCtxt<rustc_trait_selection[579280d4a5e4d181]::solve::delegate::SolverDelegate, rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>>::evaluate_goal_no_fast_paths
[INFO] [stderr]   15:     0x75058700ddf8 - <rustc_trait_selection[579280d4a5e4d181]::traits::engine::FulfillmentEngine<rustc_trait_selection[579280d4a5e4d181]::traits::FulfillmentError> as rustc_infer[378f9c2af57772fb]::traits::engine::TraitEngine<rustc_trait_selection[579280d4a5e4d181]::traits::FulfillmentError>>::try_evaluate_obligations
[INFO] [stderr]   15:     0x75c3d200ddf8 - <rustc_trait_selection[579280d4a5e4d181]::traits::engine::FulfillmentEngine<rustc_trait_selection[579280d4a5e4d181]::traits::FulfillmentError> as rustc_infer[378f9c2af57772fb]::traits::engine::TraitEngine<rustc_trait_selection[579280d4a5e4d181]::traits::FulfillmentError>>::try_evaluate_obligations
[INFO] [stderr]   16:     0x75c3d221caf9 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_call
[INFO] [stderr]   17:     0x75c3d22a84c6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   18:     0x75c3d2293a60 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_decl
[INFO] [stderr]   19:     0x75c3d229bb7e - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_block
[INFO] [stderr]   20:     0x75c3d22a8dc9 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   21:     0x75c3d2273716 - rustc_hir_typeck[52f5caf1595d1c05]::check::check_fn
[INFO] [stderr]   22:     0x75c3d3445da8 - rustc_hir_typeck[52f5caf1595d1c05]::typeck_with_inspect::{closure#0}
[INFO] [stderr]   16:     0x75058721caf9 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_call
[INFO] [stderr]   17:     0x7505872a84c6 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   18:     0x750587293a60 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_decl
[INFO] [stderr]   19:     0x75058729bb7e - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_block
[INFO] [stderr]   20:     0x7505872a8dc9 - <rustc_hir_typeck[52f5caf1595d1c05]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   21:     0x750587273716 - rustc_hir_typeck[52f5caf1595d1c05]::check::check_fn
[INFO] [stderr]   22:     0x750588445da8 - rustc_hir_typeck[52f5caf1595d1c05]::typeck_with_inspect::{closure#0}
[INFO] [stderr]   23:     0x75c3d34441f0 - rustc_query_impl[d183d205595bb26e]::query_vtables::typeck_root::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   23:     0x7505884441f0 - rustc_query_impl[d183d205595bb26e]::query_vtables::typeck_root::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   24:     0x75c3d25a1fd3 - rustc_query_impl[d183d205595bb26e]::execution::try_execute_query::<rustc_data_structures[beb512ccbba93d65]::vec_cache::VecCache<rustc_span[86848bd09168975a]::def_id::LocalDefId, rustc_middle[9749cded0b0e17c3]::query::erase::ErasedData<[u8; 8usize]>, rustc_middle[9749cded0b0e17c3]::dep_graph::graph::DepNodeIndex>, false>
[INFO] [stderr]   25:     0x75c3d25a1c27 - rustc_query_impl[d183d205595bb26e]::query_vtables::typeck_root::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   26:     0x75c3d2716634 - <rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_hir_analysis[13793032b16b77dc]::check_crate::{closure#1}>::{closure#0}
[INFO] [stderr]   27:     0x75c3d2715ce5 - rustc_hir_analysis[13793032b16b77dc]::check_crate
[INFO] [stderr]   24:     0x7505875a1fd3 - rustc_query_impl[d183d205595bb26e]::execution::try_execute_query::<rustc_data_structures[beb512ccbba93d65]::vec_cache::VecCache<rustc_span[86848bd09168975a]::def_id::LocalDefId, rustc_middle[9749cded0b0e17c3]::query::erase::ErasedData<[u8; 8usize]>, rustc_middle[9749cded0b0e17c3]::dep_graph::graph::DepNodeIndex>, false>
[INFO] [stderr]   28:     0x75c3d259e8b9 - rustc_interface[7316318c9ebc3ad]::passes::analysis
[INFO] [stderr]   29:     0x75c3d321b847 - rustc_query_impl[d183d205595bb26e]::execution::try_execute_query::<rustc_middle[9749cded0b0e17c3]::query::caches::SingleCache<rustc_middle[9749cded0b0e17c3]::query::erase::ErasedData<[u8; 0usize]>>, false>
[INFO] [stderr]   30:     0x75c3d321b62b - rustc_query_impl[d183d205595bb26e]::query_vtables::analysis::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   31:     0x75c3d32e1490 - rustc_interface[7316318c9ebc3ad]::interface::run_compiler::<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}
[INFO] [stderr]   32:     0x75c3d3311782 - std[3164a59e47d3bde]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_with_globals<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_pool_with_globals<rustc_interface[7316318c9ebc3ad]::interface::run_compiler<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   25:     0x7505875a1c27 - rustc_query_impl[d183d205595bb26e]::query_vtables::typeck_root::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   26:     0x750587716634 - <rustc_middle[9749cded0b0e17c3]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_hir_analysis[13793032b16b77dc]::check_crate::{closure#1}>::{closure#0}
[INFO] [stderr]   27:     0x750587715ce5 - rustc_hir_analysis[13793032b16b77dc]::check_crate
[INFO] [stderr]   28:     0x75058759e8b9 - rustc_interface[7316318c9ebc3ad]::passes::analysis
[INFO] [stderr]   29:     0x75058821b847 - rustc_query_impl[d183d205595bb26e]::execution::try_execute_query::<rustc_middle[9749cded0b0e17c3]::query::caches::SingleCache<rustc_middle[9749cded0b0e17c3]::query::erase::ErasedData<[u8; 0usize]>>, false>
[INFO] [stderr]   30:     0x75058821b62b - rustc_query_impl[d183d205595bb26e]::query_vtables::analysis::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   31:     0x7505882e1490 - rustc_interface[7316318c9ebc3ad]::interface::run_compiler::<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}
[INFO] [stderr]   32:     0x750588311782 - std[3164a59e47d3bde]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_with_globals<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_pool_with_globals<rustc_interface[7316318c9ebc3ad]::interface::run_compiler<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   33:     0x75058831152d - <std[3164a59e47d3bde]::thread::lifecycle::spawn_unchecked<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_with_globals<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_pool_with_globals<rustc_interface[7316318c9ebc3ad]::interface::run_compiler<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[934024a1e6126fb4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   34:     0x75058830fa5b - <std[3164a59e47d3bde]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   35:     0x750581482dfa - <unknown>
[INFO] [stderr]   36:     0x7505815163d4 - clone
[INFO] [stderr]   37:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr]   33:     0x75c3d331152d - <std[3164a59e47d3bde]::thread::lifecycle::spawn_unchecked<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_with_globals<rustc_interface[7316318c9ebc3ad]::util::run_in_thread_pool_with_globals<rustc_interface[7316318c9ebc3ad]::interface::run_compiler<(), rustc_driver_impl[4d41c45c6d37fa8c]::compiler_entrypoint::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[934024a1e6126fb4]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   34:     0x75c3d330fa5b - <std[3164a59e47d3bde]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr] error: the compiler unexpectedly panicked. This is a bug
[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]   35:     0x75c3cc482dfa - <unknown>
[INFO] [stderr] note: please make sure that you have updated to the latest nightly
[INFO] [stderr] 
[INFO] [stderr]   36:     0x75c3cc5163d4 - clone
[INFO] [stderr]   37:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2026-10-11T09_32_59-65.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.101.0-nightly (3154cc1a3 2026-10-09) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2
[INFO] [stderr] 
[INFO] [stderr] error: the compiler unexpectedly panicked. This is a bug
[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-2026-10-11T09_32_59-66.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.101.0-nightly (3154cc1a3 2026-10-09) running on x86_64-unknown-linux-gnu
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: --crate-type bin -C embed-bitcode=no -C debuginfo=2
[INFO] [stderr] 
[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] query stack during panic:
[INFO] [stderr] #0 [typeck_root] type-checking `main`
[INFO] [stderr] #1 [analysis] running analysis passes on crate `lab`
[INFO] [stderr] end of query stack
[INFO] [stderr] #0 [typeck_root] type-checking `main`
[INFO] [stderr] #1 [analysis] running analysis passes on crate `lab`
[INFO] [stderr] end of query stack
[INFO] [stderr] error: could not compile `lab` (bin "lab")
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/3154cc1a3e6424e44f438a95007d043ed5ceaaf6/bin/rustc --crate-name lab --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat,unused-externs-silent --crate-type bin --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=ac7c75e91406775c -C extra-filename=-81c95bae3f0eb9c7 --out-dir /opt/rustwide/target/debug/build/lab/81c95bae3f0eb9c7/out --extern lab=/opt/rustwide/target/debug/build/lab/16ee11065e700772/out/liblab-16ee11065e700772.rmeta --cap-lints=forbid --force-warn=unused_crate_dependencies` (exit status: 101)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `lab` (bin "lab" test)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/3154cc1a3e6424e44f438a95007d043ed5ceaaf6/bin/rustc --crate-name lab --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat,unused-externs-silent --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=9b1a272d96ba915e -C extra-filename=-892add23e4228118 --out-dir /opt/rustwide/target/debug/build/lab/892add23e4228118/out --extern lab=/opt/rustwide/target/debug/build/lab/16ee11065e700772/out/liblab-16ee11065e700772.rmeta --cap-lints=forbid --force-warn=unused_crate_dependencies` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "17d3ed74bbc27fab15db76d260a6a9b971a5eee12ab700edb8ac3936c3d82766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17d3ed74bbc27fab15db76d260a6a9b971a5eee12ab700edb8ac3936c3d82766", kill_on_drop: false }`
[INFO] [stdout] 17d3ed74bbc27fab15db76d260a6a9b971a5eee12ab700edb8ac3936c3d82766
