[INFO] cloning repository https://github.com/junyeong-ai/mcp-slack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/junyeong-ai/mcp-slack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunyeong-ai%2Fmcp-slack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunyeong-ai%2Fmcp-slack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 91ac395d0a321bde9455b60636abfc8ee9860381
[INFO] checking junyeong-ai/mcp-slack against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjunyeong-ai%2Fmcp-slack" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/junyeong-ai/mcp-slack
[INFO] finished tweaking git repo https://github.com/junyeong-ai/mcp-slack
[INFO] tweaked toml for git repo https://github.com/junyeong-ai/mcp-slack written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/junyeong-ai/mcp-slack 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 git repo https://github.com/junyeong-ai/mcp-slack 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 222f68e380b3beb8cb70f7fc61f393ba85c771f39350393852ad08680ec9d53b
[INFO] running `Command { std: "docker" "start" "-a" "222f68e380b3beb8cb70f7fc61f393ba85c771f39350393852ad08680ec9d53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "222f68e380b3beb8cb70f7fc61f393ba85c771f39350393852ad08680ec9d53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "222f68e380b3beb8cb70f7fc61f393ba85c771f39350393852ad08680ec9d53b", kill_on_drop: false }`
[INFO] [stdout] 222f68e380b3beb8cb70f7fc61f393ba85c771f39350393852ad08680ec9d53b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e59aa11414ab4362559b98ddc782742d9b02e9fadb4440908094cc2831ae90d1
[INFO] running `Command { std: "docker" "start" "-a" "e59aa11414ab4362559b98ddc782742d9b02e9fadb4440908094cc2831ae90d1", kill_on_drop: false }`
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[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (2610) 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/config.rs:136:5: 136:12 (#859), segments: [PathSegment { ident: <test_trace>#859, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(1204), style: Outer, span: src/config.rs:136:5: 136:12 (#859) }
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x73c24902bfa3 - <<std[7d609349af90bec6]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x73c24960fb48 - core[75ca2badb63c4514]::fmt::write
[INFO] [stderr]    2:     0x73c249042226 - <std[7d609349af90bec6]::sys::stdio::unix::Stderr as std[7d609349af90bec6]::io::Write>::write_fmt
[INFO] [stderr]    3:     0x73c249001b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x73c24901f833 - std[7d609349af90bec6]::panicking::default_hook
[INFO] [stderr]    5:     0x73c24800236a - std[7d609349af90bec6]::panicking::update_hook::<alloc[d7482eb0f1d19161]::boxed::Box<rustc_driver_impl[3f9d6dd912ac34bd]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x73c24901fb12 - std[7d609349af90bec6]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x73c249001c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x73c248ff89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace::<std[7d609349af90bec6]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x73c24900372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind
[INFO] [stderr]   10:     0x73c245c38f9c - core[75ca2badb63c4514]::panicking::panic_fmt
[INFO] [stderr]   11:     0x73c24a3e0110 - <rustc_ast[333fca09df5738a4]::ast::Attribute>::token_trees
[INFO] [stderr]   12:     0x73c24ac1c314 - <rustc_expand[a01ffc1bf52c2613]::expand::MacroExpander>::fully_expand_fragment
[INFO] [stderr]   13:     0x73c24abe65d2 - <rustc_expand[a01ffc1bf52c2613]::expand::MacroExpander>::expand_crate
[INFO] [stderr]   14:     0x73c249cf0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand
[INFO] [stderr]   15:     0x73c24a807658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw
[INFO] [stderr]   16:     0x73c24a8073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2342951a64deba5]::query::erase::Erased<[u8; 16usize]>>
[INFO] [stderr]   17:     0x73c24a8073a7 - <rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::dynamic_query::{closure#2} as core[75ca2badb63c4514]::ops::function::FnOnce<(rustc_middle[2342951a64deba5]::ty::context::TyCtxt, ())>>::call_once
[INFO] [stderr]   18:     0x73c24a7ecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::<rustc_query_impl[8c5349e00d64015e]::DynamicConfig<rustc_query_system[d45be4fb383a0235]::query::caches::SingleCache<rustc_middle[2342951a64deba5]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false>
[INFO] [stderr]   19:     0x73c24a7ec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   20:     0x73c24a97127b - <rustc_interface[903e43df8d6bd657]::passes::create_and_enter_global_ctxt<core[75ca2badb63c4514]::option::Option<rustc_interface[903e43df8d6bd657]::queries::Linker>, 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<rustc_data_structures[c82a87ce5cdbfc92]::jobserver::Proxy>, &std[7d609349af90bec6]::sync::once_lock::OnceLock<rustc_middle[2342951a64deba5]::ty::context::GlobalCtxt>, &rustc_data_structures[c82a87ce5cdbfc92]::sync::worker_local::WorkerLocal<rustc_middle[2342951a64deba5]::arena::Arena>, &rustc_data_structures[c82a87ce5cdbfc92]::sync::worker_local::WorkerLocal<rustc_hir[cc727ec2ba6ebdb5]::Arena>, rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0}
[INFO] [stderr]   21:     0x73c24a85ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1}
[INFO] [stderr]   22:     0x73c24a6eac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[903e43df8d6bd657]::util::run_in_thread_with_globals<rustc_interface[903e43df8d6bd657]::util::run_in_thread_pool_with_globals<rustc_interface[903e43df8d6bd657]::interface::run_compiler<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   23:     0x73c24a6eaa20 - <std[7d609349af90bec6]::thread::lifecycle::spawn_unchecked<rustc_interface[903e43df8d6bd657]::util::run_in_thread_with_globals<rustc_interface[903e43df8d6bd657]::util::run_in_thread_pool_with_globals<rustc_interface[903e43df8d6bd657]::interface::run_compiler<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   24:     0x73c24a6ed138 - <std[7d609349af90bec6]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   25:     0x73c24428aaa4 - <unknown>
[INFO] [stderr]   26:     0x73c244317a64 - clone
[INFO] [stderr]   27:                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: 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-2026-01-09T16_27_19-2607.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 `mcp-slack` (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 mcp_slack --edition=2024 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 --cfg 'feature="default"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default"))' -C metadata=a56d07ba9e5d5110 -C extra-filename=-34fac2fe427a6661 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-5aaf50b952d3f604.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-881cd3358116e88c.so --extern chrono=/opt/rustwide/target/debug/deps/libchrono-51b7d3563e5d2ea5.rmeta --extern config=/opt/rustwide/target/debug/deps/libconfig-229ca933307355e1.rmeta --extern dotenvy=/opt/rustwide/target/debug/deps/libdotenvy-9e536007c79e99aa.rmeta --extern fake=/opt/rustwide/target/debug/deps/libfake-1adaa3b0cca19dbf.rmeta --extern fuzzy_matcher=/opt/rustwide/target/debug/deps/libfuzzy_matcher-0798dba9cf6d98d8.rmeta --extern governor=/opt/rustwide/target/debug/deps/libgovernor-c72371be9e3355d2.rmeta --extern jsonrpc_core=/opt/rustwide/target/debug/deps/libjsonrpc_core-c34dc92ba14c1797.rmeta --extern jsonrpc_stdio_server=/opt/rustwide/target/debug/deps/libjsonrpc_stdio_server-cf7298d8e704b7f2.rmeta --extern mockall=/opt/rustwide/target/debug/deps/libmockall-f6fec7fda6c704fc.rmeta --extern pretty_assertions=/opt/rustwide/target/debug/deps/libpretty_assertions-a21c3242f84402d4.rmeta --extern r2d2=/opt/rustwide/target/debug/deps/libr2d2-68b01a3931b419e7.rmeta --extern r2d2_sqlite=/opt/rustwide/target/debug/deps/libr2d2_sqlite-5320739b281ab220.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-9209132a39868b52.rmeta --extern rstest=/opt/rustwide/target/debug/deps/librstest-180d23fbe1d8812a.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-2fe36c5b95c7ee11.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-577d13a464be95f7.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-163f35a59bea5d61.rmeta --extern serde_urlencoded=/opt/rustwide/target/debug/deps/libserde_urlencoded-38d89444c4cb13ad.rmeta --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-99e60b005c65c4f2.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-8e14b446596940c5.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-2a1b15f17d3507ce.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-595203c1af43aac1.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-42077ff39918f8d0.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-e74a0122e107525c.rmeta --extern wiremock=/opt/rustwide/target/debug/deps/libwiremock-587864cd2b69e2a1.rmeta --cap-lints=forbid -L native=/opt/rustwide/target/debug/build/libsqlite3-sys-4fe06dd95c2a9461/out -L native=/opt/rustwide/target/debug/build/ring-2010e8daeb82d978/out` (exit status: 101)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e59aa11414ab4362559b98ddc782742d9b02e9fadb4440908094cc2831ae90d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e59aa11414ab4362559b98ddc782742d9b02e9fadb4440908094cc2831ae90d1", kill_on_drop: false }`
[INFO] [stdout] e59aa11414ab4362559b98ddc782742d9b02e9fadb4440908094cc2831ae90d1
