[INFO] fetching crate blivemsg 0.2.4...
[INFO] documenting blivemsg-0.2.4 against da3f5c31e5535b3dc210067de660a45784ae1e9c for pr-162169
[INFO] extracting crate blivemsg 0.2.4 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate blivemsg 0.2.4
[INFO] finished tweaking crates.io crate blivemsg 0.2.4
[INFO] tweaked toml for crates.io crate blivemsg 0.2.4 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate blivemsg 0.2.4 on toolchain da3f5c31e5535b3dc210067de660a45784ae1e9c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate blivemsg 0.2.4 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" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 32c797aef7ec8ac17678a212822b94cbe90fd2585e9d73dfe3ae93bcfe386ee9
[INFO] running `Command { std: "docker" "start" "32c797aef7ec8ac17678a212822b94cbe90fd2585e9d73dfe3ae93bcfe386ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32c797aef7ec8ac17678a212822b94cbe90fd2585e9d73dfe3ae93bcfe386ee9", 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" "32c797aef7ec8ac17678a212822b94cbe90fd2585e9d73dfe3ae93bcfe386ee9" "/opt/rustwide/cargo-home/bin/cargo" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32c797aef7ec8ac17678a212822b94cbe90fd2585e9d73dfe3ae93bcfe386ee9", 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" "32c797aef7ec8ac17678a212822b94cbe90fd2585e9d73dfe3ae93bcfe386ee9" "/opt/rustwide/cargo-home/bin/cargo" "+da3f5c31e5535b3dc210067de660a45784ae1e9c" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.62
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking socket2 v0.6.3
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[INFO] [stderr]    Compiling futures-macro v0.3.32
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[INFO] [stderr]  Documenting blivemsg v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (862) panicked at src/librustdoc/passes/lint/unportable_markdown.rs:100:29:
[INFO] [stderr] end byte index 40 is not a char boundary; it is inside '端' (bytes 38..41 of string)
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x71a6aea44f16 - <<std[c2577c5add975170]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[45eb60b2de227a2c]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x71a6af00bb0f - core[45eb60b2de227a2c]::fmt::write
[INFO] [stderr]    2:     0x71a6aea5a00c - <std[c2577c5add975170]::sys::stdio::unix::Stderr as core[45eb60b2de227a2c]::io::write::Write>::write_fmt
[INFO] [stderr]    3:     0x71a6aea177ea - std[c2577c5add975170]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x71a6aea39243 - std[c2577c5add975170]::panicking::default_hook
[INFO] [stderr]    5:     0x71a6ad9af4cf - std[c2577c5add975170]::panicking::update_hook::<alloc[223e3de3f1abdb8b]::boxed::Box<rustc_driver_impl[4b73d46cdbe287a1]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x71a6aea396e2 - std[c2577c5add975170]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x71a6aea178a2 - std[c2577c5add975170]::panicking::panic_handler::{closure#0}
[INFO] [stderr]    8:     0x71a6aea0f4a9 - std[c2577c5add975170]::sys::backtrace::__rust_end_short_backtrace::<std[c2577c5add975170]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]    9:     0x71a6aea1947d - __rustc[b1482ee701bb2aa]::rust_begin_unwind
[INFO] [stderr]   10:     0x71a6ab8211ec - core[45eb60b2de227a2c]::panicking::panic_fmt
[INFO] [stderr]   11:     0x71a6ad33a9c3 - core[45eb60b2de227a2c]::str::slice_error_fail_rt
[INFO] [stderr]   12:     0x71a6ad13845a - core[45eb60b2de227a2c]::str::slice_error_fail
[INFO] [stderr]   13:     0x5d28880588a7 - rustdoc[33599144c5b96b58]::passes::lint::unportable_markdown::report_idx
[INFO] [stderr]   14:     0x5d2888022b78 - <rustc_middle[e08e5453fbad50fc]::lint::emit_lint_base<rustc_errors[1d50ee650ea3b17f]::diagnostic::DiagDecorator<rustdoc[33599144c5b96b58]::passes::lint::unportable_markdown::visit_item::{closure#1}>, rustc_middle[e08e5453fbad50fc]::lint::LevelSpec<rustc_lint_defs[7c0f2f3102977cec]::StableLintExpectationId>>::{closure#0} as core[45eb60b2de227a2c]::ops::function::FnOnce<(rustc_errors[1d50ee650ea3b17f]::DiagCtxtHandle, rustc_errors[1d50ee650ea3b17f]::Level)>>::call_once::{shim:vtable#0}
[INFO] [stderr]   15:     0x71a6af33a5ad - rustc_middle[e08e5453fbad50fc]::lint::emit_lint_base::emit_lint_base_impl
[INFO] [stderr]   16:     0x5d2887d82cdd - <rustdoc[33599144c5b96b58]::passes::lint::Linter as rustdoc[33599144c5b96b58]::visit::DocVisitor>::visit_item
[INFO] [stderr]   17:     0x5d2887d7f4f6 - <rustdoc[33599144c5b96b58]::passes::lint::Linter as rustdoc[33599144c5b96b58]::visit::DocVisitor>::visit_item
[INFO] [stderr]   18:     0x5d2887d3a72f - rustdoc[33599144c5b96b58]::core::run_global_ctxt
[INFO] [stderr]   19:     0x5d2887e1b860 - rustdoc[33599144c5b96b58]::main_args::{closure#2}::{closure#0}
[INFO] [stderr]   20:     0x5d2887e2902d - rustc_interface[6115ffe46e65b891]::interface::run_compiler::<(), rustdoc[33599144c5b96b58]::main_args::{closure#2}>::{closure#2}
[INFO] [stderr]   21:     0x5d2887e26bd3 - std[c2577c5add975170]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[6115ffe46e65b891]::util::run_in_thread_with_globals<rustc_interface[6115ffe46e65b891]::util::run_in_thread_pool_with_globals<rustc_interface[6115ffe46e65b891]::interface::run_compiler<(), rustdoc[33599144c5b96b58]::main_args::{closure#2}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   22:     0x5d2887e2693f - <std[c2577c5add975170]::thread::lifecycle::spawn_unchecked<rustc_interface[6115ffe46e65b891]::util::run_in_thread_with_globals<rustc_interface[6115ffe46e65b891]::util::run_in_thread_pool_with_globals<rustc_interface[6115ffe46e65b891]::interface::run_compiler<(), rustdoc[33599144c5b96b58]::main_args::{closure#2}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[45eb60b2de227a2c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   23:     0x71a6b0458a87 - <std[c2577c5add975170]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   24:     0x71a6a982507a - <unknown>
[INFO] [stderr]   25:     0x71a6a98b8534 - clone
[INFO] [stderr]   26:                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-rustdoc&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-2026-09-07T14_44_29-861.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.100.0-nightly (da3f5c31e 2026-09-02) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: --crate-type lib
[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] end of query stack
[INFO] [stderr] error: could not document `blivemsg`
[INFO] running `Command { std: "docker" "inspect" "32c797aef7ec8ac17678a212822b94cbe90fd2585e9d73dfe3ae93bcfe386ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c797aef7ec8ac17678a212822b94cbe90fd2585e9d73dfe3ae93bcfe386ee9", kill_on_drop: false }`
[INFO] [stdout] 32c797aef7ec8ac17678a212822b94cbe90fd2585e9d73dfe3ae93bcfe386ee9
