[INFO] fetching crate mdbook-core 0.5.0-alpha.1...
[INFO] testing mdbook-core-0.5.0-alpha.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mdbook-core 0.5.0-alpha.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate mdbook-core 0.5.0-alpha.1
[INFO] finished tweaking crates.io crate mdbook-core 0.5.0-alpha.1
[INFO] tweaked toml for crates.io crate mdbook-core 0.5.0-alpha.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook-core 0.5.0-alpha.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mdbook-core 0.5.0-alpha.1 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-2025-09-21" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68f3cec2c7a5428358deddaaca2ee13d66a7061f5de4469c55018658284e5b31
[INFO] running `Command { std: "docker" "start" "-a" "68f3cec2c7a5428358deddaaca2ee13d66a7061f5de4469c55018658284e5b31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68f3cec2c7a5428358deddaaca2ee13d66a7061f5de4469c55018658284e5b31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f3cec2c7a5428358deddaaca2ee13d66a7061f5de4469c55018658284e5b31", kill_on_drop: false }`
[INFO] [stdout] 68f3cec2c7a5428358deddaaca2ee13d66a7061f5de4469c55018658284e5b31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3cef1d889a828d586871b53e5b564bc212c1c767103cc3abb9cdb3161638ac9c
[INFO] running `Command { std: "docker" "start" "-a" "3cef1d889a828d586871b53e5b564bc212c1c767103cc3abb9cdb3161638ac9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling winnow v0.7.12
[INFO] [stderr]    Compiling toml_writer v1.0.2
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling toml_parser v1.0.1
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling toml_datetime v0.7.0
[INFO] [stderr]    Compiling serde_spanned v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling toml v0.9.2
[INFO] [stderr]    Compiling mdbook-core v0.5.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.69s
[INFO] running `Command { std: "docker" "inspect" "3cef1d889a828d586871b53e5b564bc212c1c767103cc3abb9cdb3161638ac9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cef1d889a828d586871b53e5b564bc212c1c767103cc3abb9cdb3161638ac9c", kill_on_drop: false }`
[INFO] [stdout] 3cef1d889a828d586871b53e5b564bc212c1c767103cc3abb9cdb3161638ac9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 017442f125734fa80fd8a566cfdd41fcc0e1278beac32f2fa8aff9c217558216
[INFO] running `Command { std: "docker" "start" "-a" "017442f125734fa80fd8a566cfdd41fcc0e1278beac32f2fa8aff9c217558216", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling rustix v1.0.7
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling mdbook-core v0.5.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.03s
[INFO] running `Command { std: "docker" "inspect" "017442f125734fa80fd8a566cfdd41fcc0e1278beac32f2fa8aff9c217558216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017442f125734fa80fd8a566cfdd41fcc0e1278beac32f2fa8aff9c217558216", kill_on_drop: false }`
[INFO] [stdout] 017442f125734fa80fd8a566cfdd41fcc0e1278beac32f2fa8aff9c217558216
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f439af66bb9be2cdb6602db76cad6f521549d8cca436aeaa5a1e31b4008fca31
[INFO] running `Command { std: "docker" "start" "-a" "f439af66bb9be2cdb6602db76cad6f521549d8cca436aeaa5a1e31b4008fca31", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mdbook_core-cdf01e6a0c6efa0c)
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test book::tests::for_each_mut_visits_all_items ... ok
[INFO] [stdout] test book::tests::book_iter_iterates_over_sequential_items ... ok
[INFO] [stdout] test config::tests::disable_runnable ... ok
[INFO] [stdout] test config::tests::edition_2015 ... ok
[INFO] [stdout] test config::tests::edition_2021 ... ok
[INFO] [stdout] test config::tests::edition_2018 ... ok
[INFO] [stdout] test config::tests::file_404_default ... ok
[INFO] [stdout] test config::tests::file_404_custom ... ok
[INFO] [stdout] test book::tests::section_number_has_correct_dotted_representation ... ok
[INFO] [stdout] test book::tests::iterate_over_nested_book_items ... ok
[INFO] [stdout] test config::tests::load_arbitrary_output_type ... ok
[INFO] [stdout] test config::tests::load_a_complex_config_file ... ok
[INFO] [stdout] test config::tests::parse_env_vars ... ok
[INFO] [stdout] test config::tests::set_special_tables ... ok
[INFO] [stdout] test config::tests::test_json_direction ... ok
[INFO] [stdout] test config::tests::test_text_direction ... ok
[INFO] [stdout] test config::tests::text_direction_ltr ... ok
[INFO] [stdout] test config::tests::text_direction_none ... ok
[INFO] [stdout] test config::tests::print_config ... ok
[INFO] [stdout] test config::tests::text_direction_rtl ... ok
[INFO] [stdout] test utils::html::attributes_are_escaped ... ok
[INFO] [stdout] test utils::html::html_is_escaped ... ok
[INFO] [stdout] test utils::toml_ext::tests::insert_item_at_top_level ... ok
[INFO] [stdout] test utils::toml_ext::tests::insert_nested_item ... ok
[INFO] [stdout] test utils::toml_ext::tests::read_nested_item ... ok
[INFO] [stdout] test utils::fs::tests::copy_files_except_ext_test ... ok
[INFO] [stdout] test utils::toml_ext::tests::read_simple_table ... ok
[INFO] [stdout] test config::tests::invalid_rust_edition - should panic ... ok
[INFO] [stdout] test config::tests::invalid_language_type_error - should panic ... ok
[INFO] [stdout] test config::tests::invalid_build_dir_type - should panic ... ok
[INFO] [stdout] test config::tests::set_invalid_keys ... ok
[INFO] [stdout] test config::tests::invalid_rust_edition_expected - should panic ... ok
[INFO] [stdout] test config::tests::invalid_title_type - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mdbook_core
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/config.rs - config (line 11) ... ok
[INFO] [stdout] test src/utils/fs.rs - utils::fs::path_to_root (line 44) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f439af66bb9be2cdb6602db76cad6f521549d8cca436aeaa5a1e31b4008fca31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f439af66bb9be2cdb6602db76cad6f521549d8cca436aeaa5a1e31b4008fca31", kill_on_drop: false }`
[INFO] [stdout] f439af66bb9be2cdb6602db76cad6f521549d8cca436aeaa5a1e31b4008fca31