[INFO] fetching crate spacer 0.5.0...
[INFO] testing spacer-0.5.0 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate spacer 0.5.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate spacer 0.5.0
[INFO] finished tweaking crates.io crate spacer 0.5.0
[INFO] tweaked toml for crates.io crate spacer 0.5.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate spacer 0.5.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate spacer 0.5.0 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6
[INFO] running `Command { std: "docker" "start" "b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6", 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" "b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling rustix v0.38.43
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling miniz_oxide v0.8.2
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling is-terminal v0.4.13
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling bitflags v2.7.0
[INFO] [stderr]    Compiling anyhow v1.0.95
[INFO] [stderr]    Compiling indexmap v2.7.0
[INFO] [stderr]    Compiling owo-colors v4.1.0
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling iana-time-zone v0.1.61
[INFO] [stderr]    Compiling uuid v1.11.1
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling phf v0.11.3
[INFO] [stderr]    Compiling clap_builder v4.5.26
[INFO] [stderr]    Compiling supports-color v2.1.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling chrono v0.4.39
[INFO] [stderr]    Compiling terminal_size v0.4.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling clap_derive v4.5.24
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling env_logger v0.11.6
[INFO] [stderr]    Compiling backtrace v0.3.74
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.1
[INFO] [stderr]    Compiling chrono-tz-build v0.4.0
[INFO] [stderr]    Compiling chrono-tz v0.10.0
[INFO] [stderr]    Compiling clap v4.5.26
[INFO] [stderr]    Compiling serde_spanned v0.6.8
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling os_info v3.9.2
[INFO] [stderr]    Compiling toml_edit v0.22.22
[INFO] [stderr]    Compiling toml v0.8.19
[INFO] [stderr]    Compiling human-panic v2.0.2
[INFO] [stderr]    Compiling spacer v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused dependency `lazy_static`
[INFO] [stderr]   --> Cargo.toml:27:15
[INFO] [stderr]    |
[INFO] [stderr] 27 | [dependencies.lazy_static]
[INFO] [stderr]    |               ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `lazy_static`
[INFO] [stderr] warning: `spacer` (manifest) generated 1 warning
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.87s
[INFO] running `Command { std: "docker" "inspect" "b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling test-case-core v3.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling clap_derive v4.5.24
[INFO] [stderr]    Compiling test-case-macros v3.3.1
[INFO] [stderr]    Compiling test-case v3.3.1
[INFO] [stderr]    Compiling clap v4.5.26
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling serde_spanned v0.6.8
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling os_info v3.9.2
[INFO] [stderr]    Compiling toml_edit v0.22.22
[INFO] [stderr]    Compiling toml v0.8.19
[INFO] [stderr]    Compiling human-panic v2.0.2
[INFO] [stderr]    Compiling spacer v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (1055) panicked at /rustc-dev/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/compiler/rustc_hir_typeck/src/method/confirm.rs:762:54:
[INFO] [stderr] index out of bounds: the len is 0 but the index is 0
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x72dcb998a9d6 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x72dcba00d08f - core[a373ad73a504971]::fmt::write
[INFO] [stderr]    2:     0x72dcbb68356c - <std[617be2ca0a6fd877]::sys::stdio::unix::Stderr as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stderr]    3:     0x72dcb995d60a - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x72dcb997f103 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stderr]    5:     0x72dcb8692665 - std[617be2ca0a6fd877]::panicking::update_hook::<alloc[2e1b2a31b91974c5]::boxed::Box<rustc_driver_impl[fec14241f8975cfd]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x72dcb997f5a2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x72dcb995d6c2 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x72dcb9955279 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x72dcb995f29d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stderr]   10:     0x72dcb639807c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stderr]   11:     0x72dcb6e77f05 - core[a373ad73a504971]::panicking::panic_bounds_check
[INFO] [stderr]   12:     0x72dcbb3accc0 - <rustc_hir_typeck[8942a51420d77344]::method::confirm::ConfirmContext>::confirm
[INFO] [stderr]   13:     0x72dcba29b1b4 - <rustc_hir_typeck[8942a51420d77344]::fn_ctxt::FnCtxt>::check_expr_method_call
[INFO] [stderr]   14:     0x72dcba28d63f - <rustc_hir_typeck[8942a51420d77344]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   15:     0x72dcba225114 - <rustc_hir_typeck[8942a51420d77344]::fn_ctxt::FnCtxt>::check_expr_block
[INFO] [stderr]   16:     0x72dcba28d613 - <rustc_hir_typeck[8942a51420d77344]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   17:     0x72dcba22c365 - rustc_hir_typeck[8942a51420d77344]::check::check_fn
[INFO] [stderr]   18:     0x72dcbb370187 - rustc_hir_typeck[8942a51420d77344]::typeck_with_inspect::{closure#0}
[INFO] [stderr]   19:     0x72dcbb36e58e - rustc_query_impl[dd2043a667895b0]::query_vtables::typeck_root::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   20:     0x72dcba6bc5fa - rustc_query_impl[dd2043a667895b0]::execution::try_execute_query::<rustc_data_structures[16bfc8b56cfc6142]::vec_cache::VecCache<rustc_span[4b7b5a53591785e6]::def_id::LocalDefId, rustc_middle[264df97201bda3a9]::query::erase::ErasedData<[u8; 8usize]>, rustc_middle[264df97201bda3a9]::dep_graph::graph::DepNodeIndex>, false>
[INFO] [stderr]   21:     0x72dcba6bc22d - rustc_query_impl[dd2043a667895b0]::query_vtables::typeck_root::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   22:     0x72dcba3e731c - <rustc_middle[264df97201bda3a9]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_hir_analysis[7da984f530155d80]::check_crate::{closure#1}>::{closure#0}
[INFO] [stderr]   23:     0x72dcba3e69cb - rustc_hir_analysis[7da984f530155d80]::check_crate
[INFO] [stderr]   24:     0x72dcba6b8fca - rustc_interface[f286839d7ce16120]::passes::analysis
[INFO] [stderr]   25:     0x72dcbb05b547 - rustc_query_impl[dd2043a667895b0]::execution::try_execute_query::<rustc_middle[264df97201bda3a9]::query::caches::SingleCache<rustc_middle[264df97201bda3a9]::query::erase::ErasedData<[u8; 0usize]>>, false>
[INFO] [stderr]   26:     0x72dcbb05b32b - rustc_query_impl[dd2043a667895b0]::query_vtables::analysis::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   27:     0x72dcbb1a87c9 - rustc_interface[f286839d7ce16120]::interface::run_compiler::<(), rustc_driver_impl[fec14241f8975cfd]::run_compiler::{closure#0}>::{closure#2}
[INFO] [stderr]   28:     0x72dcbb21f7e4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[f286839d7ce16120]::util::run_in_thread_with_globals<rustc_interface[f286839d7ce16120]::util::run_in_thread_pool_with_globals<rustc_interface[f286839d7ce16120]::interface::run_compiler<(), rustc_driver_impl[fec14241f8975cfd]::run_compiler::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   29:     0x72dcbb21f57d - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<rustc_interface[f286839d7ce16120]::util::run_in_thread_with_globals<rustc_interface[f286839d7ce16120]::util::run_in_thread_pool_with_globals<rustc_interface[f286839d7ce16120]::interface::run_compiler<(), rustc_driver_impl[fec14241f8975cfd]::run_compiler::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   30:     0x72dcbb22a3ad - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   31:     0x72dcb4482dfa - <unknown>
[INFO] [stderr]   32:     0x72dcb45163d4 - clone
[INFO] [stderr]   33:                0x0 - <unknown>
[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: rustc 1.100.0-beta.1 (e3feeb59c 2026-09-27) 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] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] #0 [typeck_root] type-checking `tests::<impl at src/main.rs:447:5: 447:41>::write`
[INFO] [stderr] #1 [analysis] running analysis passes on crate `spacer`
[INFO] [stderr] end of query stack
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (1055) panicked at /rustc-dev/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/compiler/rustc_hir_typeck/src/method/confirm.rs:762:54:
[INFO] [stderr] index out of bounds: the len is 0 but the index is 0
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x72dcb998a9d6 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x72dcba00d08f - core[a373ad73a504971]::fmt::write
[INFO] [stderr]    2:     0x72dcbb68356c - <std[617be2ca0a6fd877]::sys::stdio::unix::Stderr as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stderr]    3:     0x72dcb995d60a - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x72dcb997f103 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stderr]    5:     0x72dcb8692665 - std[617be2ca0a6fd877]::panicking::update_hook::<alloc[2e1b2a31b91974c5]::boxed::Box<rustc_driver_impl[fec14241f8975cfd]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x72dcb997f5a2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x72dcb995d6c2 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x72dcb9955279 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x72dcb995f29d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stderr]   10:     0x72dcb639807c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stderr]   11:     0x72dcb6e77f05 - core[a373ad73a504971]::panicking::panic_bounds_check
[INFO] [stderr]   12:     0x72dcbb3accc0 - <rustc_hir_typeck[8942a51420d77344]::method::confirm::ConfirmContext>::confirm
[INFO] [stderr]   13:     0x72dcba29b1b4 - <rustc_hir_typeck[8942a51420d77344]::fn_ctxt::FnCtxt>::check_expr_method_call
[INFO] [stderr]   14:     0x72dcba28d63f - <rustc_hir_typeck[8942a51420d77344]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   15:     0x72dcba225114 - <rustc_hir_typeck[8942a51420d77344]::fn_ctxt::FnCtxt>::check_expr_block
[INFO] [stderr]   16:     0x72dcba28d613 - <rustc_hir_typeck[8942a51420d77344]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
[INFO] [stderr]   17:     0x72dcba22c365 - rustc_hir_typeck[8942a51420d77344]::check::check_fn
[INFO] [stderr]   18:     0x72dcbb370187 - rustc_hir_typeck[8942a51420d77344]::typeck_with_inspect::{closure#0}
[INFO] [stderr]   19:     0x72dcbb36e58e - rustc_query_impl[dd2043a667895b0]::query_vtables::typeck_root::invoke_provider_fn::__rust_begin_short_backtrace
[INFO] [stderr]   20:     0x72dcba6bc5fa - rustc_query_impl[dd2043a667895b0]::execution::try_execute_query::<rustc_data_structures[16bfc8b56cfc6142]::vec_cache::VecCache<rustc_span[4b7b5a53591785e6]::def_id::LocalDefId, rustc_middle[264df97201bda3a9]::query::erase::ErasedData<[u8; 8usize]>, rustc_middle[264df97201bda3a9]::dep_graph::graph::DepNodeIndex>, false>
[INFO] [stderr]   21:     0x72dcba6bc22d - rustc_query_impl[dd2043a667895b0]::query_vtables::typeck_root::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   22:     0x72dcba3e731c - <rustc_middle[264df97201bda3a9]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_hir_analysis[7da984f530155d80]::check_crate::{closure#1}>::{closure#0}
[INFO] [stderr]   23:     0x72dcba3e69cb - rustc_hir_analysis[7da984f530155d80]::check_crate
[INFO] [stderr]   24:     0x72dcba6b8fca - rustc_interface[f286839d7ce16120]::passes::analysis
[INFO] [stderr]   25:     0x72dcbb05b547 - rustc_query_impl[dd2043a667895b0]::execution::try_execute_query::<rustc_middle[264df97201bda3a9]::query::caches::SingleCache<rustc_middle[264df97201bda3a9]::query::erase::ErasedData<[u8; 0usize]>>, false>
[INFO] [stderr]   26:     0x72dcbb05b32b - rustc_query_impl[dd2043a667895b0]::query_vtables::analysis::execute_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   27:     0x72dcbb1a87c9 - rustc_interface[f286839d7ce16120]::interface::run_compiler::<(), rustc_driver_impl[fec14241f8975cfd]::run_compiler::{closure#0}>::{closure#2}
[INFO] [stderr]   28:     0x72dcbb21f7e4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[f286839d7ce16120]::util::run_in_thread_with_globals<rustc_interface[f286839d7ce16120]::util::run_in_thread_pool_with_globals<rustc_interface[f286839d7ce16120]::interface::run_compiler<(), rustc_driver_impl[fec14241f8975cfd]::run_compiler::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   29:     0x72dcbb21f57d - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<rustc_interface[f286839d7ce16120]::util::run_in_thread_with_globals<rustc_interface[f286839d7ce16120]::util::run_in_thread_pool_with_globals<rustc_interface[f286839d7ce16120]::interface::run_compiler<(), rustc_driver_impl[fec14241f8975cfd]::run_compiler::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   30:     0x72dcbb22a3ad - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   31:     0x72dcb4482dfa - <unknown>
[INFO] [stderr]   32:     0x72dcb45163d4 - clone
[INFO] [stderr]   33:                0x0 - <unknown>
[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: rustc 1.100.0-beta.1 (e3feeb59c 2026-09-27) 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] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] #0 [typeck_root] type-checking `tests::<impl at src/main.rs:447:5: 447:41>::flush`
[INFO] [stderr] #1 [analysis] running analysis passes on crate `spacer`
[INFO] [stderr] end of query stack
[INFO] [stderr] error: could not compile `spacer` (bin "spacer" test)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.100.0-beta.1-x86_64-unknown-linux-gnu/bin/rustc --crate-name spacer --edition=2024 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat,unused-externs-silent --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=2a7e4df53fddc17c -C extra-filename=-9d4800a2c60cabec --out-dir /opt/rustwide/target/debug/build/spacer/9d4800a2c60cabec/out -L dependency=/opt/rustwide/target/debug/build/addr2line/e9241d2ecb8769d3/out -L dependency=/opt/rustwide/target/debug/build/adler2/405893fb7a545b5b/out -L dependency=/opt/rustwide/target/debug/build/aho-corasick/efbbd5d6d643848a/out -L dependency=/opt/rustwide/target/debug/build/anstream/029ae311d5bb7370/out -L dependency=/opt/rustwide/target/debug/build/anstyle-parse/ba0fcc57d8ad93a7/out -L dependency=/opt/rustwide/target/debug/build/anstyle-query/6b2b2868060db38b/out -L dependency=/opt/rustwide/target/debug/build/anstyle/e80e21c5036b9344/out -L dependency=/opt/rustwide/target/debug/build/backtrace/8a6a533c6ebff623/out -L dependency=/opt/rustwide/target/debug/build/bitflags/b81984d32d10ab84/out -L dependency=/opt/rustwide/target/debug/build/cfg-if/3e7fc4e38d4a72b5/out -L dependency=/opt/rustwide/target/debug/build/chrono/86b6dd63faacaa88/out -L dependency=/opt/rustwide/target/debug/build/clap_builder/df66005a128d40a3/out -L dependency=/opt/rustwide/target/debug/build/clap_derive/52e194f209fdcdf8/out -L dependency=/opt/rustwide/target/debug/build/clap_lex/b423203a2eab4856/out -L dependency=/opt/rustwide/target/debug/build/colorchoice/c3c00c022d852059/out -L dependency=/opt/rustwide/target/debug/build/env_filter/8bc2d32524eed2f7/out -L dependency=/opt/rustwide/target/debug/build/equivalent/487f93f8f6ab5e5b/out -L dependency=/opt/rustwide/target/debug/build/getrandom/288365d8f464a4a8/out -L dependency=/opt/rustwide/target/debug/build/gimli/5c2b805880369b53/out -L dependency=/opt/rustwide/target/debug/build/hashbrown/acdfbba63b345327/out -L dependency=/opt/rustwide/target/debug/build/humantime/9f900d7885b5087e/out -L dependency=/opt/rustwide/target/debug/build/iana-time-zone/98f2ac8a8c5a9959/out -L dependency=/opt/rustwide/target/debug/build/indexmap/083eccd547b26d44/out -L dependency=/opt/rustwide/target/debug/build/is-terminal/7ecf48db3bd0912e/out -L dependency=/opt/rustwide/target/debug/build/is_ci/e8bef29ef2e608ab/out -L dependency=/opt/rustwide/target/debug/build/is_terminal_polyfill/e39671344234c74d/out -L dependency=/opt/rustwide/target/debug/build/libc/2bf611855e8315c4/out -L dependency=/opt/rustwide/target/debug/build/linux-raw-sys/e0d87a58652c2b0b/out -L dependency=/opt/rustwide/target/debug/build/log/368e05ac2c0115e3/out -L dependency=/opt/rustwide/target/debug/build/memchr/eec2dd93b0d498c5/out -L dependency=/opt/rustwide/target/debug/build/miniz_oxide/ce89e808d6dde55a/out -L dependency=/opt/rustwide/target/debug/build/num-traits/66f46d894c59143e/out -L dependency=/opt/rustwide/target/debug/build/object/a6a88de173d7bc07/out -L dependency=/opt/rustwide/target/debug/build/os_info/c4060814e8234799/out -L dependency=/opt/rustwide/target/debug/build/phf/f53d3288c911f115/out -L dependency=/opt/rustwide/target/debug/build/phf_shared/2b9eff6710873a04/out -L dependency=/opt/rustwide/target/debug/build/regex-automata/a1b7b53b2afedf50/out -L dependency=/opt/rustwide/target/debug/build/regex-syntax/fb6833b4227b2d03/out -L dependency=/opt/rustwide/target/debug/build/regex/6b1a0b8692a58a79/out -L dependency=/opt/rustwide/target/debug/build/rustc-demangle/685041651feef096/out -L dependency=/opt/rustwide/target/debug/build/rustix/bb566266588778c8/out -L dependency=/opt/rustwide/target/debug/build/serde/3e2ceabaad7df2c7/out -L dependency=/opt/rustwide/target/debug/build/serde_derive/ca0e913bc396d911/out -L dependency=/opt/rustwide/target/debug/build/serde_spanned/807ff7c07fcc5e59/out -L dependency=/opt/rustwide/target/debug/build/siphasher/03bcd832dc490f0a/out -L dependency=/opt/rustwide/target/debug/build/strsim/4d1ed08a123238dc/out -L dependency=/opt/rustwide/target/debug/build/supports-color/3899ffcb78560df3/out -L dependency=/opt/rustwide/target/debug/build/supports-color/c1d10671381a4f13/out -L dependency=/opt/rustwide/target/debug/build/test-case-macros/8c21906e64dc9ffe/out -L dependency=/opt/rustwide/target/debug/build/toml/e7882d382935f546/out -L dependency=/opt/rustwide/target/debug/build/toml_datetime/d5aeb7473b8cb2f1/out -L dependency=/opt/rustwide/target/debug/build/toml_edit/3caebb78de0cee4d/out -L dependency=/opt/rustwide/target/debug/build/utf8parse/92d0158219063202/out -L dependency=/opt/rustwide/target/debug/build/uuid/02efa30c2371e4c8/out --extern anyhow=/opt/rustwide/target/debug/build/anyhow/74ec22ad3f527172/out/libanyhow-74ec22ad3f527172.rlib --extern chrono=/opt/rustwide/target/debug/build/chrono/86b6dd63faacaa88/out/libchrono-86b6dd63faacaa88.rlib --extern chrono_tz=/opt/rustwide/target/debug/build/chrono-tz/508c01d0f8d908b1/out/libchrono_tz-508c01d0f8d908b1.rlib --extern clap=/opt/rustwide/target/debug/build/clap/28c8e16ebaad346f/out/libclap-28c8e16ebaad346f.rlib --extern env_logger=/opt/rustwide/target/debug/build/env_logger/801b9f88bf1551b7/out/libenv_logger-801b9f88bf1551b7.rlib --extern human_panic=/opt/rustwide/target/debug/build/human-panic/e5ccacec81226ddc/out/libhuman_panic-e5ccacec81226ddc.rlib --extern lazy_static=/opt/rustwide/target/debug/build/lazy_static/3674be3f4245d19b/out/liblazy_static-3674be3f4245d19b.rlib --extern log=/opt/rustwide/target/debug/build/log/368e05ac2c0115e3/out/liblog-368e05ac2c0115e3.rlib --extern owo_colors=/opt/rustwide/target/debug/build/owo-colors/cbe4c9ac294e36c0/out/libowo_colors-cbe4c9ac294e36c0.rlib --extern terminal_size=/opt/rustwide/target/debug/build/terminal_size/a1bfc3e51a4ee8d8/out/libterminal_size-a1bfc3e51a4ee8d8.rlib --extern test_case=/opt/rustwide/target/debug/build/test-case/d95f0df5644dea57/out/libtest_case-d95f0df5644dea57.rlib --cap-lints=warn --force-warn=unused_crate_dependencies` (exit status: 101)
[INFO] [stderr] warning: unused dependency `lazy_static`
[INFO] [stderr]   --> Cargo.toml:27:15
[INFO] [stderr]    |
[INFO] [stderr] 27 | [dependencies.lazy_static]
[INFO] [stderr]    |               ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `lazy_static`
[INFO] [stderr] warning: `spacer` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6", kill_on_drop: false }`
[INFO] [stdout] b3cc7394c4147ded4f3ca711f63f4c581ca16fc2e4bf02c3e02247d1519a3be6
