[INFO] fetching crate ckydb 0.0.5... [INFO] checking ckydb-0.0.5 against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727 [INFO] extracting crate ckydb 0.0.5 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate ckydb 0.0.5 [INFO] finished tweaking crates.io crate ckydb 0.0.5 [INFO] tweaked toml for crates.io crate ckydb 0.0.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate ckydb 0.0.5 on toolchain 66388cc165a6c4ac98c074dc9f0281ff23528c55 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate ckydb 0.0.5 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" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a1818f477f015c4061fce065cd56befca0a7c4877821b6471467701aeede010b [INFO] running `Command { std: "docker" "start" "-a" "a1818f477f015c4061fce065cd56befca0a7c4877821b6471467701aeede010b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a1818f477f015c4061fce065cd56befca0a7c4877821b6471467701aeede010b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a1818f477f015c4061fce065cd56befca0a7c4877821b6471467701aeede010b", kill_on_drop: false }` [INFO] [stdout] a1818f477f015c4061fce065cd56befca0a7c4877821b6471467701aeede010b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3f51cdcbefbfdba8e1edce37abcc7a11ccf7c5ce4537c2a8eb44c427688f57c5 [INFO] running `Command { std: "docker" "start" "-a" "3f51cdcbefbfdba8e1edce37abcc7a11ccf7c5ce4537c2a8eb44c427688f57c5", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Checking slab v0.4.6 [INFO] [stderr] Compiling rustversion v1.0.7 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Checking pin-project-lite v0.2.9 [INFO] [stderr] Checking futures-io v0.3.21 [INFO] [stderr] Checking smallvec v1.9.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Checking ckydb v0.0.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `AlreadyRunningError` is never constructed [INFO] [stdout] --> src/errors.rs:34:12 [INFO] [stdout] | [INFO] [stdout] 34 | pub struct AlreadyRunningError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `NotRunningError` is never constructed [INFO] [stdout] --> src/errors.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 47 | pub struct NotRunningError; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `DUMMY_FILE_DATA` is never used [INFO] [stdout] --> src/utils.rs:11:7 [INFO] [stdout] | [INFO] [stdout] 11 | const DUMMY_FILE_DATA: [(&str, &str); 5] = [ [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `clear_dummy_file_data_in_db` is never used [INFO] [stdout] --> src/utils.rs:24:15 [INFO] [stdout] | [INFO] [stdout] 24 | pub(crate) fn clear_dummy_file_data_in_db>(db_path: P) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_dummy_file_data_in_db` is never used [INFO] [stdout] --> src/utils.rs:36:15 [INFO] [stdout] | [INFO] [stdout] 36 | pub(crate) fn add_dummy_file_data_in_db(db_path: &str) -> io::Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_files_with_extension` is never used [INFO] [stdout] --> src/utils.rs:55:15 [INFO] [stdout] | [INFO] [stdout] 55 | pub(crate) fn read_files_with_extension>( [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking futures-executor v0.3.21 [INFO] [stderr] Checking futures v0.3.21 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling serial_test_derive v0.8.0 [INFO] [stderr] Checking serial_test v0.8.0 [INFO] [stderr] [INFO] [stderr] thread 'rustc' (578) panicked at /rustc-dev/66388cc165a6c4ac98c074dc9f0281ff23528c55/compiler/rustc_ast/src/attr/mod.rs:302:36: [INFO] [stderr] attribute is missing tokens: Attribute { kind: Normal(NormalAttr { item: AttrItem { unsafety: Default, path: Path { span: src/controller.rs:255:5: 255:12 (#12), segments: [PathSegment { ident: #12, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(434), style: Outer, span: src/controller.rs:255:5: 255:12 (#12) } [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7bec5062bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7bec50c0fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x7bec50642226 - ::write_fmt [INFO] [stderr] 3: 0x7bec50601b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7bec5061f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x7bec4f60236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7bec5061fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7bec50601c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7bec505f89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7bec5060372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x7bec4d238f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x7bec519e0110 - ::token_trees [INFO] [stderr] 12: 0x7bec5221c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x7bec521e65d2 - ::expand_crate [INFO] [stderr] 14: 0x7bec512f0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x7bec51e07658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x7bec51e073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x7bec51e073a7 - >::call_once [INFO] [stderr] 18: 0x7bec51decb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x7bec51dec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x7bec51f7127b - , rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[75ca2badb63c4514]::ops::function::FnOnce<(&rustc_session[1e6875ba352dc1ba]::session::Session, rustc_middle[2342951a64deba5]::ty::context::CurrentGcx, alloc[d7482eb0f1d19161]::sync::Arc, &std[7d609349af90bec6]::sync::once_lock::OnceLock, &rustc_data_structures[c82a87ce5cdbfc92]::sync::worker_local::WorkerLocal, &rustc_data_structures[c82a87ce5cdbfc92]::sync::worker_local::WorkerLocal, rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0} [INFO] [stderr] 21: 0x7bec51e5ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x7bec51ceac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x7bec51ceaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x7bec51ced138 - ::new::thread_start [INFO] [stderr] 25: 0x7bec4b88aaa4 - [INFO] [stderr] 26: 0x7bec4b917a64 - clone [INFO] [stderr] 27: 0x0 - [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-2026-01-08T17_48_26-576.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.94.0-nightly (66388cc16 2026-01-08) 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 [resolver_for_lowering_raw] getting the resolver for lowering [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `ckydb` (lib test) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/66388cc165a6c4ac98c074dc9f0281ff23528c55/bin/rustc --crate-name ckydb --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=3bd0e0106e8590a1 -C extra-filename=-c13358496bcdfa7e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-55a6403e9964c59a.rmeta --cap-lints=forbid` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "3f51cdcbefbfdba8e1edce37abcc7a11ccf7c5ce4537c2a8eb44c427688f57c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f51cdcbefbfdba8e1edce37abcc7a11ccf7c5ce4537c2a8eb44c427688f57c5", kill_on_drop: false }` [INFO] [stdout] 3f51cdcbefbfdba8e1edce37abcc7a11ccf7c5ce4537c2a8eb44c427688f57c5