[INFO] fetching crate mdbook_rash 2.17.2...
[INFO] testing mdbook_rash-2.17.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mdbook_rash 2.17.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mdbook_rash 2.17.2
[INFO] finished tweaking crates.io crate mdbook_rash 2.17.2
[INFO] tweaked toml for crates.io crate mdbook_rash 2.17.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook_rash 2.17.2 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mdbook_rash 2.17.2 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" "+beta-2025-10-28" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80eda35c7667f4fabe0e61bdf258b26eca1d2ca47d193f4e6e21f385a6d63bcc
[INFO] running `Command { std: "docker" "start" "-a" "80eda35c7667f4fabe0e61bdf258b26eca1d2ca47d193f4e6e21f385a6d63bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80eda35c7667f4fabe0e61bdf258b26eca1d2ca47d193f4e6e21f385a6d63bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80eda35c7667f4fabe0e61bdf258b26eca1d2ca47d193f4e6e21f385a6d63bcc", kill_on_drop: false }`
[INFO] [stdout] 80eda35c7667f4fabe0e61bdf258b26eca1d2ca47d193f4e6e21f385a6d63bcc
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0f7e819e1e2ad62365fa1a8f21ff3ce5d35b53d739702d2cc02e0de2bfdbe64
[INFO] running `Command { std: "docker" "start" "-a" "f0f7e819e1e2ad62365fa1a8f21ff3ce5d35b53d739702d2cc02e0de2bfdbe64", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling http v1.3.1
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling rustls v0.23.31
[INFO] [stderr]    Compiling cc v1.2.36
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling sync_wrapper v1.0.2
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling webpki-roots v1.0.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]    Compiling iri-string v0.7.8
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling rust_decimal v1.37.2
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling http-body-util v0.1.3
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling dyn-clone v1.0.20
[INFO] [stderr]    Compiling regex-automata v0.4.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stderr]    Compiling pulldown-cmark v0.10.3
[INFO] [stderr]    Compiling env_home v0.1.0
[INFO] [stderr]    Compiling num-modular v0.6.1
[INFO] [stderr]    Compiling prs-lib v0.5.5
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling dirs-sys v0.5.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling tokio v1.48.0
[INFO] [stderr]    Compiling dirs v6.0.0
[INFO] [stderr]    Compiling terminal_size v0.4.3
[INFO] [stderr]    Compiling clap_builder v4.5.51
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling which v8.0.0
[INFO] [stderr]    Compiling shellexpand v3.1.1
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling indexmap v2.11.1
[INFO] [stderr]    Compiling num-order v1.2.0
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling secstr v0.5.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling csv-core v0.1.12
[INFO] [stderr]    Compiling colored v2.2.0
[INFO] [stderr]    Compiling utf8-width v0.1.7
[INFO] [stderr]    Compiling unsafe-libyaml-norway v0.2.15
[INFO] [stderr]    Compiling git-state v0.1.0
[INFO] [stderr]    Compiling jiff v0.2.15
[INFO] [stderr]    Compiling memo-map v0.3.3
[INFO] [stderr]    Compiling version-compare v0.2.0
[INFO] [stderr]    Compiling self_cell v1.2.0
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling unicode-width v0.2.1
[INFO] [stderr]    Compiling pulldown-cmark-escape v0.10.1
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling console v0.16.1
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling fern v0.7.1
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2025-10-28-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=2728859dd98b5e6f -C extra-filename=-11bf10edce025a4f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-07b0828fcc28aa5e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-57fad6c649a1e997.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-9ad4622e9362cad2.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2025-10-28-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.108/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=afafaf46556f3698 -C extra-filename=-3863bf1ab5d45f52 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-07b0828fcc28aa5e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-57fad6c649a1e997.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-9ad4622e9362cad2.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "f0f7e819e1e2ad62365fa1a8f21ff3ce5d35b53d739702d2cc02e0de2bfdbe64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0f7e819e1e2ad62365fa1a8f21ff3ce5d35b53d739702d2cc02e0de2bfdbe64", kill_on_drop: false }`
[INFO] [stdout] f0f7e819e1e2ad62365fa1a8f21ff3ce5d35b53d739702d2cc02e0de2bfdbe64