[INFO] cloning repository https://github.com/akrutsinger/mcdm [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akrutsinger/mcdm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakrutsinger%2Fmcdm", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakrutsinger%2Fmcdm'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 692ba949c79c832c650561a99b4ee007008d4981 [INFO] documenting akrutsinger/mcdm against try#a394c9cd9ec93787f09a7ac445b14cc674a94549 for pr-151918 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakrutsinger%2Fmcdm" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/akrutsinger/mcdm [INFO] finished tweaking git repo https://github.com/akrutsinger/mcdm [INFO] tweaked toml for git repo https://github.com/akrutsinger/mcdm written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/akrutsinger/mcdm on toolchain a394c9cd9ec93787f09a7ac445b14cc674a94549 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/akrutsinger/mcdm 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" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5d1c6c02377a139c1c6c7084d74fb1ee22a575aafedc2dab324ce3e3086decd7 [INFO] running `Command { std: "docker" "start" "-a" "5d1c6c02377a139c1c6c7084d74fb1ee22a575aafedc2dab324ce3e3086decd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5d1c6c02377a139c1c6c7084d74fb1ee22a575aafedc2dab324ce3e3086decd7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d1c6c02377a139c1c6c7084d74fb1ee22a575aafedc2dab324ce3e3086decd7", kill_on_drop: false }` [INFO] [stdout] 5d1c6c02377a139c1c6c7084d74fb1ee22a575aafedc2dab324ce3e3086decd7 [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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+a394c9cd9ec93787f09a7ac445b14cc674a94549" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a50b98f3f7212b01cbb28e3776caf1f301a241a0167c745c0d29261f80392e2f [INFO] running `Command { std: "docker" "start" "-a" "a50b98f3f7212b01cbb28e3776caf1f301a241a0167c745c0d29261f80392e2f", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling proc-macro2 v1.0.94 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling matrixmultiply v0.3.9 [INFO] [stderr] Compiling indices v0.3.6 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling quote v1.0.39 [INFO] [stderr] Compiling syn v2.0.99 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking approx v0.5.1 [INFO] [stderr] Checking num-complex v0.4.6 [INFO] [stderr] Checking num-rational v0.4.2 [INFO] [stderr] Compiling regex-automata v0.4.9 [INFO] [stderr] Checking simba v0.9.0 [INFO] [stderr] Compiling regex v1.11.1 [INFO] [stderr] Compiling nalgebra-macros v0.2.2 [INFO] [stderr] Compiling error_set_impl v0.8.5 [INFO] [stderr] Checking error_set v0.8.5 [INFO] [stderr] Checking nalgebra v0.33.2 [INFO] [stderr] Documenting mcdm v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] [INFO] [stderr] thread 'rustc' (374) panicked at src/librustdoc/html/markdown.rs:541:22: [INFO] [stderr] a production-ready version of this should handle the error somehow: LatexError(11, UnknownCommand("[")) [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x74d87e046d9b - <::print::DisplayBacktrace as core[37ab4a9f28f6fd13]::fmt::Display>::fmt [INFO] [stderr] 1: 0x74d87e60ef88 - core[37ab4a9f28f6fd13]::fmt::write [INFO] [stderr] 2: 0x74d87e05dc36 - ::write_fmt [INFO] [stderr] 3: 0x74d87e01ce48 - std[6281e874092a0dfc]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x74d87e03a163 - std[6281e874092a0dfc]::panicking::default_hook [INFO] [stderr] 5: 0x74d87d00ff8d - std[6281e874092a0dfc]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x74d87e03a442 - std[6281e874092a0dfc]::panicking::panic_with_hook [INFO] [stderr] 7: 0x74d87e01cf08 - std[6281e874092a0dfc]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x74d87e011479 - std[6281e874092a0dfc]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x74d87e01e96d - __rustc[670611b3f56fc7d7]::rust_begin_unwind [INFO] [stderr] 10: 0x74d87acce58c - core[37ab4a9f28f6fd13]::panicking::panic_fmt [INFO] [stderr] 11: 0x74d87a988b72 - core[37ab4a9f28f6fd13]::result::unwrap_failed [INFO] [stderr] 12: 0x5d0727df94e7 - ::into_iter::{closure#0}>>>>, ::into_iter::{closure#1}::{closure#0}>>> as core[37ab4a9f28f6fd13]::iter::traits::iterator::Iterator>::next [INFO] [stderr] 13: 0x5d0727d8fc16 - ::into_iter::{closure#0}>>>>, ::into_iter::{closure#1}::{closure#0}>>>> as core[37ab4a9f28f6fd13]::iter::traits::iterator::Iterator>::next [INFO] [stderr] 14: 0x5d0727bf5493 - ::into_iter::{closure#0}>>>>, ::into_iter::{closure#1}::{closure#0}>>>>, pulldown_cmark_escape[cb8658d251f4e39e]::FmtWriter<&mut core[37ab4a9f28f6fd13]::fmt::Formatter>>>::run [INFO] [stderr] 15: 0x5d0727a44b80 - ::write_into::<&mut core[37ab4a9f28f6fd13]::fmt::Formatter> [INFO] [stderr] 16: 0x5d0727de8521 - as core[37ab4a9f28f6fd13]::fmt::Display>::fmt [INFO] [stderr] 17: 0x74d87e60ef88 - core[37ab4a9f28f6fd13]::fmt::write [INFO] [stderr] 18: 0x5d0727de95da - as core[37ab4a9f28f6fd13]::fmt::Display>::fmt [INFO] [stderr] 19: 0x5d0727de2c8a - as core[37ab4a9f28f6fd13]::fmt::Display>::fmt [INFO] [stderr] 20: 0x74d87e60ef88 - core[37ab4a9f28f6fd13]::fmt::write [INFO] [stderr] 21: 0x5d0727bd1966 - rustdoc[7f40747ea455e46f]::html::render::print_item::item_trait::{closure#0} [INFO] [stderr] 22: 0x74d87e60ef88 - core[37ab4a9f28f6fd13]::fmt::write [INFO] [stderr] 23: 0x5d0727ae0baa - rustdoc[7f40747ea455e46f]::html::layout::render::, core[37ab4a9f28f6fd13]::fmt::builders::FromFn<::render_item::{closure#1}>> [INFO] [stderr] 24: 0x5d0727c34b85 - ::render_item [INFO] [stderr] 25: 0x5d0727dcfa5e - ::item [INFO] [stderr] 26: 0x5d0727ae9adc - rustdoc[7f40747ea455e46f]::formats::renderer::run_format_inner:: [INFO] [stderr] 27: 0x5d0727ae9c8f - rustdoc[7f40747ea455e46f]::formats::renderer::run_format_inner:: [INFO] [stderr] 28: 0x5d0727ae9c8f - rustdoc[7f40747ea455e46f]::formats::renderer::run_format_inner:: [INFO] [stderr] 29: 0x5d0727bb239f - rustdoc[7f40747ea455e46f]::main_args::{closure#2}::{closure#0} [INFO] [stderr] 30: 0x5d0727ba6100 - rustc_interface[7c235db06cadd779]::interface::run_compiler::<(), rustdoc[7f40747ea455e46f]::main_args::{closure#2}>::{closure#1} [INFO] [stderr] 31: 0x5d0727adf078 - std[6281e874092a0dfc]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 32: 0x5d0727bd8df7 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[37ab4a9f28f6fd13]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 33: 0x74d87f81dbac - ::new::thread_start [INFO] [stderr] 34: 0x74d87928aaa4 - [INFO] [stderr] 35: 0x74d879317a64 - clone [INFO] [stderr] 36: 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-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-2026-02-07T00_28_49-373.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.95.0-nightly (a394c9cd9 2026-01-31) 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 `mcdm` [INFO] running `Command { std: "docker" "inspect" "a50b98f3f7212b01cbb28e3776caf1f301a241a0167c745c0d29261f80392e2f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a50b98f3f7212b01cbb28e3776caf1f301a241a0167c745c0d29261f80392e2f", kill_on_drop: false }` [INFO] [stdout] a50b98f3f7212b01cbb28e3776caf1f301a241a0167c745c0d29261f80392e2f