[INFO] fetching crate bear-mcp 0.1.0... [INFO] checking bear-mcp-0.1.0 against try#fcfb0ffc7ed7fc631df1136063939ef648434735 for pr-152543 [INFO] extracting crate bear-mcp 0.1.0 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate bear-mcp 0.1.0 [INFO] finished tweaking crates.io crate bear-mcp 0.1.0 [INFO] tweaked toml for crates.io crate bear-mcp 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate bear-mcp 0.1.0 on toolchain fcfb0ffc7ed7fc631df1136063939ef648434735 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate bear-mcp 0.1.0 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" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c0790918a6347161ed13c5f224f4c4e3ecf2ef32e737a66c650d7b141a02b3cc [INFO] running `Command { std: "docker" "start" "-a" "c0790918a6347161ed13c5f224f4c4e3ecf2ef32e737a66c650d7b141a02b3cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c0790918a6347161ed13c5f224f4c4e3ecf2ef32e737a66c650d7b141a02b3cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c0790918a6347161ed13c5f224f4c4e3ecf2ef32e737a66c650d7b141a02b3cc", kill_on_drop: false }` [INFO] [stdout] c0790918a6347161ed13c5f224f4c4e3ecf2ef32e737a66c650d7b141a02b3cc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 19cecd629ca378c4dfc21beb874cd562e77cf1ab176fd6c6a6ff56f9f6ff20d5 [INFO] running `Command { std: "docker" "start" "-a" "19cecd629ca378c4dfc21beb874cd562e77cf1ab176fd6c6a6ff56f9f6ff20d5", kill_on_drop: false }` [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling find-msvc-tools v0.1.4 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Checking regex-automata v0.4.13 [INFO] [stderr] Compiling syn v2.0.109 [INFO] [stderr] Checking getrandom v0.3.4 [INFO] [stderr] Checking either v1.15.0 [INFO] [stderr] Compiling slotmap v1.0.7 [INFO] [stderr] Checking foldhash v0.2.0 [INFO] [stderr] Checking signal-hook v0.3.18 [INFO] [stderr] Compiling polars-utils v0.52.0 [INFO] [stderr] Checking phf_shared v0.12.1 [INFO] [stderr] Checking memmap2 v0.9.9 [INFO] [stderr] Checking raw-cpuid v11.6.0 [INFO] [stderr] Compiling polars-schema v0.52.0 [INFO] [stderr] Checking rand_core v0.9.3 [INFO] [stderr] Checking uuid v1.18.1 [INFO] [stderr] Compiling chrono-tz v0.10.4 [INFO] [stderr] Checking phf v0.12.1 [INFO] [stderr] Compiling polars-arrow v0.52.0 [INFO] [stderr] Compiling cc v1.2.44 [INFO] [stderr] Checking rand_chacha v0.9.0 [INFO] [stderr] Checking debug_unsafe v0.1.3 [INFO] [stderr] Checking streaming-iterator v0.1.9 [INFO] [stderr] Checking ethnum v1.5.2 [INFO] [stderr] Compiling polars-compute v0.52.0 [INFO] [stderr] Checking boxcar v0.2.14 [INFO] [stderr] Checking fast-float2 v0.2.3 [INFO] [stderr] Checking crossterm v0.29.0 [INFO] [stderr] Checking atoi_simd v0.16.1 [INFO] [stderr] Checking rayon v1.11.0 [INFO] [stderr] Compiling polars-core v0.52.0 [INFO] [stderr] Checking rand v0.9.2 [INFO] [stderr] Checking unicode-width v0.2.2 [INFO] [stderr] Compiling polars-ops v0.52.0 [INFO] [stderr] Checking xxhash-rust v0.8.15 [INFO] [stderr] Checking argminmax v0.6.3 [INFO] [stderr] Compiling serde_json v1.0.145 [INFO] [stderr] Compiling time-macros v0.2.24 [INFO] [stderr] Checking comfy-table v7.2.1 [INFO] [stderr] Checking hashbrown v0.15.5 [INFO] [stderr] Compiling polars v0.52.0 [INFO] [stderr] Checking option-ext v0.2.0 [INFO] [stderr] Checking glob v0.3.3 [INFO] [stderr] Checking dirs-sys v0.5.0 [INFO] [stderr] Compiling object v0.32.2 [INFO] [stderr] Checking fallible-streaming-iterator v0.1.9 [INFO] [stderr] Checking fallible-iterator v0.3.0 [INFO] [stderr] Checking dirs v6.0.0 [INFO] [stderr] Checking hashlink v0.10.0 [INFO] [stderr] Compiling stacker v0.1.22 [INFO] [stderr] Compiling libsqlite3-sys v0.35.0 [INFO] [stderr] Compiling darling_core v0.21.3 [INFO] [stderr] Compiling serde_derive_internals v0.29.1 [INFO] [stderr] Checking deranged v0.5.5 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling bytemuck_derive v1.10.2 [INFO] [stderr] Compiling strum_macros v0.27.2 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling thiserror-impl v2.0.17 [INFO] [stderr] Compiling tracing-attributes v0.1.30 [INFO] [stderr] Compiling ref-cast-impl v1.0.25 [INFO] [stderr] Checking regex v1.12.2 [INFO] [stderr] Compiling tokio-macros v2.6.0 [INFO] [stderr] Checking polars-error v0.52.0 [INFO] [stderr] Compiling schemars_derive v1.1.0 [INFO] [stderr] Checking ref-cast v1.0.25 [INFO] [stderr] Checking matchers v0.2.0 [INFO] [stderr] Checking tracing v0.1.41 [INFO] [stderr] Checking bytemuck v1.24.0 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Compiling ar_archive_writer v0.2.0 [INFO] [stderr] Checking tokio v1.48.0 [INFO] [stderr] Checking thiserror v2.0.17 [INFO] [stderr] Compiling psm v0.1.28 [INFO] [stderr] Compiling darling_macro v0.21.3 [INFO] [stderr] Compiling darling v0.21.3 [INFO] [stderr] Compiling rmcp-macros v0.8.5 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking chrono v0.4.42 [INFO] [stderr] Checking hashbrown v0.16.0 [INFO] [stderr] Checking compact_str v0.9.0 [INFO] [stderr] Checking time v0.3.44 [INFO] [stderr] Checking tracing-serde v0.2.0 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking indexmap v2.12.0 [INFO] [stderr] Checking now v0.1.3 [INFO] [stderr] Checking schemars v1.1.0 [INFO] [stderr] Checking tokio-util v0.7.17 [INFO] [stderr] Checking tracing-subscriber v0.3.20 [INFO] [stderr] Checking rmcp v0.8.5 [INFO] [stderr] Checking rusqlite v0.37.0 [INFO] [stderr] Checking polars-dtype v0.52.0 [INFO] [stderr] Checking polars-row v0.52.0 [INFO] [stderr] [INFO] [stderr] thread 'rustc' (1500) panicked at /rustc-dev/fcfb0ffc7ed7fc631df1136063939ef648434735/compiler/rustc_resolve/src/imports.rs:387:13: [INFO] [stderr] assertion failed: !deep_decl.is_glob_import() [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7d4b971cc0cb - <::print::DisplayBacktrace as core[8b57c986620ee5a]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7d4b978110c8 - core[8b57c986620ee5a]::fmt::write [INFO] [stderr] 2: 0x7d4b971e3346 - ::write_fmt [INFO] [stderr] 3: 0x7d4b971a2178 - std[b93c492f418f3816]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7d4b971bf533 - std[b93c492f418f3816]::panicking::default_hook [INFO] [stderr] 5: 0x7d4b9618214f - std[b93c492f418f3816]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7d4b971bf812 - std[b93c492f418f3816]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7d4b971a226a - std[b93c492f418f3816]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7d4b971967a9 - std[b93c492f418f3816]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7d4b971a3c9d - __rustc[d3418fc9c160c44e]::rust_begin_unwind [INFO] [stderr] 10: 0x7d4b941aeffc - core[8b57c986620ee5a]::panicking::panic_fmt [INFO] [stderr] 11: 0x7d4b93831262 - core[8b57c986620ee5a]::panicking::panic [INFO] [stderr] 12: 0x7d4b97820c49 - ::try_plant_decl_into_local_module [INFO] [stderr] 13: 0x7d4b9782024b - ::try_plant_decl_into_local_module [INFO] [stderr] 14: 0x7d4b9781e786 - ::resolve_imports [INFO] [stderr] 15: 0x7d4b98e51e98 - ::fully_expand_fragment [INFO] [stderr] 16: 0x7d4b98e5101b - ::expand_crate [INFO] [stderr] 17: 0x7d4b9812a754 - rustc_interface[641f1abe5726c2cd]::passes::resolver_for_lowering_raw [INFO] [stderr] 18: 0x7d4b98129bcd - rustc_query_impl[b8931922d9beaa63]::query_impl::resolver_for_lowering_raw::invoke_provider_fn::__rust_begin_short_backtrace [INFO] [stderr] 19: 0x7d4b98a4daec - rustc_query_impl[b8931922d9beaa63]::execution::try_execute_query::>, {rustc_query_impl[b8931922d9beaa63]::QueryFlags { is_anon: false, is_depth_limit: false, is_feedable: false }}, false> [INFO] [stderr] 20: 0x7d4b98a4d642 - rustc_query_impl[b8931922d9beaa63]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 21: 0x7d4b98be83cf - , rustc_driver_impl[b5629e0377822466]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[8b57c986620ee5a]::ops::function::FnOnce<(&rustc_session[1d525e564db3200a]::session::Session, rustc_middle[f6bca11d96c6d76c]::ty::context::CurrentGcx, alloc[c25e2e16b2a0e9f9]::sync::Arc, &std[b93c492f418f3816]::sync::once_lock::OnceLock, &rustc_data_structures[b6d7bda38a12cf55]::sync::worker_local::WorkerLocal, &rustc_data_structures[b6d7bda38a12cf55]::sync::worker_local::WorkerLocal, rustc_driver_impl[b5629e0377822466]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0} [INFO] [stderr] 22: 0x7d4b98a0c837 - rustc_interface[641f1abe5726c2cd]::interface::run_compiler::<(), rustc_driver_impl[b5629e0377822466]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 23: 0x7d4b98a333fe - std[b93c492f418f3816]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 24: 0x7d4b98a33920 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[8b57c986620ee5a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 25: 0x7d4b98a347ac - ::new::thread_start [INFO] [stderr] 26: 0x7d4b9a3b9aa4 - [INFO] [stderr] 27: 0x7d4b9a446a64 - clone [INFO] [stderr] 28: 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/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polars-core-0.52.0/rustc-ice-2026-02-12T19_49_04-1498.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.95.0-nightly (fcfb0ffc7 2026-02-12) 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 [resolver_for_lowering_raw] getting the resolver for lowering [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `polars-core` (lib) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/fcfb0ffc7ed7fc631df1136063939ef648434735/bin/rustc --crate-name polars_core --edition=2024 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polars-core-0.52.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 '--allow=clippy::collapsible_if' --cfg 'feature="algorithm_group_by"' --cfg 'feature="chrono"' --cfg 'feature="comfy-table"' --cfg 'feature="dtype-array"' --cfg 'feature="dtype-categorical"' --cfg 'feature="dtype-date"' --cfg 'feature="dtype-datetime"' --cfg 'feature="dtype-decimal"' --cfg 'feature="dtype-duration"' --cfg 'feature="dtype-i128"' --cfg 'feature="dtype-i16"' --cfg 'feature="dtype-i8"' --cfg 'feature="dtype-struct"' --cfg 'feature="dtype-time"' --cfg 'feature="dtype-u128"' --cfg 'feature="dtype-u16"' --cfg 'feature="dtype-u8"' --cfg 'feature="fmt"' --cfg 'feature="regex"' --cfg 'feature="temporal"' --cfg 'feature="zip_with"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("algorithm_group_by", "allow_unused", "approx_unique", "array_arithmetic", "avx512", "bigidx", "bitwise", "checked_arithmetic", "chrono", "chrono-tz", "comfy-table", "dataframe_arithmetic", "default", "describe", "diagonal_concat", "docs", "docs-selection", "dot_product", "dsl-schema", "dtype-array", "dtype-categorical", "dtype-date", "dtype-datetime", "dtype-decimal", "dtype-duration", "dtype-i128", "dtype-i16", "dtype-i8", "dtype-struct", "dtype-time", "dtype-u128", "dtype-u16", "dtype-u8", "dynamic_group_by", "fmt", "fmt_no_tty", "group_by_list", "is_first_distinct", "is_last_distinct", "lazy", "list_arithmetic", "ndarray", "nightly", "object", "partition_by", "performant", "product", "proptest", "python", "rand", "rand_distr", "random", "regex", "reinterpret", "rolling_window", "rolling_window_by", "round_series", "row_hash", "rows", "serde", "serde-lazy", "serde_json", "simd", "strings", "take_opt_iter", "temporal", "timezones", "unique_counts", "zip_with"))' -C metadata=887bd76920a19026 -C extra-filename=-aeaf2b5c085ff39f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-c85988d0561b2741.rmeta --extern boxcar=/opt/rustwide/target/debug/deps/libboxcar-9979246320cc8c3b.rmeta --extern bytemuck=/opt/rustwide/target/debug/deps/libbytemuck-f1ed795bee28ca13.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-ae62b00ce8c616f2.rmeta --extern comfy_table=/opt/rustwide/target/debug/deps/libcomfy_table-08579fcc25359909.rmeta --extern either=/opt/rustwide/target/debug/deps/libeither-35672727dfbcf6c5.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-17425da01c907ba2.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-f94b61a9c75f9714.rmeta --extern itoa=/opt/rustwide/target/debug/deps/libitoa-aa1c64fbdc4f12a7.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-5926fbb98e608a95.rmeta --extern arrow=/opt/rustwide/target/debug/deps/libpolars_arrow-29ea7bb2f3969074.rmeta --extern polars_compute=/opt/rustwide/target/debug/deps/libpolars_compute-a1302520a1a5e76e.rmeta --extern polars_dtype=/opt/rustwide/target/debug/deps/libpolars_dtype-d63d9d91ae8a8ec3.rmeta --extern polars_error=/opt/rustwide/target/debug/deps/libpolars_error-2fc2d8184573fc43.rmeta --extern polars_row=/opt/rustwide/target/debug/deps/libpolars_row-3fc4789aebf58c1a.rmeta --extern polars_schema=/opt/rustwide/target/debug/deps/libpolars_schema-6afb31ccef8e4b51.rmeta --extern polars_utils=/opt/rustwide/target/debug/deps/libpolars_utils-a3bd28d589aa6f44.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-fdecb9a611c44d7c.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-a8ce60b0b51564fd.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-c90ee58ba58870a2.so --extern uuid=/opt/rustwide/target/debug/deps/libuuid-1dfec4ab847ebfa1.rmeta --extern xxhash_rust=/opt/rustwide/target/debug/deps/libxxhash_rust-16ea1815b87f13c7.rmeta --cap-lints allow --cap-lints=forbid -L native=/opt/rustwide/target/debug/build/psm-796df09efb29210e/out --cfg 'feature="nightly"'` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "19cecd629ca378c4dfc21beb874cd562e77cf1ab176fd6c6a6ff56f9f6ff20d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19cecd629ca378c4dfc21beb874cd562e77cf1ab176fd6c6a6ff56f9f6ff20d5", kill_on_drop: false }` [INFO] [stdout] 19cecd629ca378c4dfc21beb874cd562e77cf1ab176fd6c6a6ff56f9f6ff20d5