[INFO] cloning repository https://github.com/vroland/mfnf-export
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vroland/mfnf-export" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvroland%2Fmfnf-export", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvroland%2Fmfnf-export'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cb12bb9efddb477c78c8de74c67555525bf15d4
[INFO] documenting vroland/mfnf-export against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvroland%2Fmfnf-export" "/workspace/builds/worker-35/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vroland/mfnf-export on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vroland/mfnf-export
[INFO] finished tweaking git repo https://github.com/vroland/mfnf-export
[INFO] tweaked toml for git repo https://github.com/vroland/mfnf-export written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate git repo https://github.com/vroland/mfnf-export already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4517c853348e27c65c9cf489430cbab8663e0b3cc497a38de8cbb1363743a62b
[INFO] running `Command { std: "docker" "start" "-a" "4517c853348e27c65c9cf489430cbab8663e0b3cc497a38de8cbb1363743a62b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4517c853348e27c65c9cf489430cbab8663e0b3cc497a38de8cbb1363743a62b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4517c853348e27c65c9cf489430cbab8663e0b3cc497a38de8cbb1363743a62b", kill_on_drop: false }`
[INFO] [stdout] 4517c853348e27c65c9cf489430cbab8663e0b3cc497a38de8cbb1363743a62b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbcc5388f49c2b0d0dc3602847eb46b3fba3358a5a7fe1d9d2ca96c09fbac03e
[INFO] running `Command { std: "docker" "start" "-a" "cbcc5388f49c2b0d0dc3602847eb46b3fba3358a5a7fe1d9d2ca96c09fbac03e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling dtoa v0.4.3
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking colored v1.7.0
[INFO] [stderr]    Compiling serde v1.0.85
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking serde_json v1.0.37
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling peg v0.5.7
[INFO] [stderr]    Compiling yaml-rust v0.4.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking serde_yaml v0.8.8
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling serde_yaml v0.7.5
[INFO] [stderr]    Compiling serde_derive v1.0.85
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]    Compiling mediawiki_parser v0.4.2
[INFO] [stderr]    Compiling mwparser_utils_derive v0.1.0 (https://github.com/vroland/mediawiki-parser-utils#67c63573)
[INFO] [stderr]    Compiling mwparser_utils_derive v0.1.0 (https://github.com/serlo/mediawiki-parser-utils#67c63573)
[INFO] [stderr] error: failed to run custom build command for `mediawiki_parser v0.4.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mediawiki_parser-25f50e70e35f7f02/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=src/grammar.rustpeg
[INFO] [stderr]   cargo:rerun-if-changed=doc/docs.yml
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'attempted to leave type `linked_hash_map::Node<yaml::Yaml, yaml::Yaml>` uninitialized, which is invalid', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked-hash-map-0.5.1/src/lib.rs:174:52
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55f0214ec33d - std::backtrace_rs::backtrace::libunwind::trace::ha8406fd4a233ad1f
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]      1:     0x55f0214ec33d - std::backtrace_rs::backtrace::trace_unsynchronized::h95f26ca4bd23bd0f
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55f0214ec33d - std::sys_common::backtrace::_print_fmt::h9955f0b025c061cd
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]      3:     0x55f0214ec33d - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1025ecd2bac85833
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]      4:     0x55f02150c6ac - core::fmt::write::hd5fa34bae8a7f0ea
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/core/src/fmt/mod.rs:1196:17
[INFO] [stderr]      5:     0x55f0214e9e61 - std::io::Write::write_fmt::h203cec764662c27d
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/io/mod.rs:1654:15
[INFO] [stderr]      6:     0x55f0214eda05 - std::sys_common::backtrace::_print::h330c8fadbab13d8b
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]      7:     0x55f0214eda05 - std::sys_common::backtrace::print::h38d4cf1c3e16e656
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]      8:     0x55f0214eda05 - std::panicking::default_hook::{{closure}}::h56cdf194ec124abb
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:295:22
[INFO] [stderr]      9:     0x55f0214ed679 - std::panicking::default_hook::h9929fdc60733f795
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:314:9
[INFO] [stderr]     10:     0x55f0214edfd8 - std::panicking::rust_panic_with_hook::h490228be5a55104d
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:698:17
[INFO] [stderr]     11:     0x55f0214ede49 - std::panicking::begin_panic_handler::{{closure}}::hfd963b6683c36656
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:586:13
[INFO] [stderr]     12:     0x55f0214ec7f4 - std::sys_common::backtrace::__rust_end_short_backtrace::h2912e3decfe2cba4
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:138:18
[INFO] [stderr]     13:     0x55f0214edbb9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:584:5
[INFO] [stderr]     14:     0x55f021381813 - core::panicking::panic_fmt::hf4ba906a2c8693a2
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/core/src/panicking.rs:142:14
[INFO] [stderr]     15:     0x55f0213816dd - core::panicking::panic::h3262704a78835d10
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/core/src/panicking.rs:48:5
[INFO] [stderr]     16:     0x55f02144189d - core::mem::uninitialized::h2178332a23c4fc00
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/core/src/mem/mod.rs:685:9
[INFO] [stderr]     17:     0x55f02144189d - linked_hash_map::LinkedHashMap<K,V,S>::ensure_guard_node::hab311cee8cb6d48b
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked-hash-map-0.5.1/src/lib.rs:174:52
[INFO] [stderr]     18:     0x55f021441b19 - linked_hash_map::LinkedHashMap<K,V,S>::insert::h19cdb02b5ce70363
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/linked-hash-map-0.5.1/src/lib.rs:304:9
[INFO] [stderr]     19:     0x55f0213cf93a - <serde_yaml::ser::SerializeStruct as serde::ser::SerializeStruct>::serialize_field::hf084a475c382b4be
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.8/src/ser.rs:371:9
[INFO] [stderr]     20:     0x55f02141b449 - <serde::private::ser::TaggedSerializer<S> as serde::ser::Serializer>::serialize_struct::h1392111efd6291e1
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.85/src/private/ser.rs:294:14
[INFO] [stderr]     21:     0x55f0213a6bc1 - build_script_build::ast::_IMPL_SERIALIZE_FOR_Document::<impl serde::ser::Serialize for build_script_build::ast::Document>::serialize::hb0e38b8edce4df64
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mediawiki_parser-0.4.2/src/ast.rs:37:17
[INFO] [stderr]     22:     0x55f02141af38 - serde::private::ser::serialize_tagged_newtype::hc5712160f098a42d
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.85/src/private/ser.rs:29:5
[INFO] [stderr]     23:     0x55f0213a7e17 - build_script_build::ast::_IMPL_SERIALIZE_FOR_Element::<impl serde::ser::Serialize for build_script_build::ast::Element>::serialize::h792dc10bd7ff16c8
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mediawiki_parser-0.4.2/src/ast.rs:13:17
[INFO] [stderr]     24:     0x55f0213854f8 - serde::ser::impls::<impl serde::ser::Serialize for &T>::serialize::h8c2e7e4ff8317606
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.85/src/ser/impls.rs:365:17
[INFO] [stderr]     25:     0x55f0213ca55b - serde_yaml::ser::to_yaml::h9e7e45d7c54a5291
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.8/src/ser.rs:460:5
[INFO] [stderr]     26:     0x55f0213ca969 - serde_yaml::ser::to_writer::hf0d18324bce31cde
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.8/src/ser.rs:406:15
[INFO] [stderr]     27:     0x55f0213ca1f9 - serde_yaml::ser::to_vec::he8ec4088945aa9b0
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.8/src/ser.rs:423:5
[INFO] [stderr]     28:     0x55f0213ca795 - serde_yaml::ser::to_string::h42de03f87fea4a8b
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_yaml-0.8.8/src/ser.rs:435:26
[INFO] [stderr]     29:     0x55f02141b7d6 - build_script_build::Test::write_code::h4096ded9280f3dcb
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mediawiki_parser-0.4.2/build.rs:68:13
[INFO] [stderr]     30:     0x55f02141bf15 - build_script_build::generate_tests::h9685f6c8449d8659
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mediawiki_parser-0.4.2/build.rs:102:9
[INFO] [stderr]     31:     0x55f02141bfb7 - build_script_build::main::hd4b66a0c9ba1e167
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mediawiki_parser-0.4.2/build.rs:108:5
[INFO] [stderr]     32:     0x55f0213d14fb - core::ops::function::FnOnce::call_once::h192aa433fc7c2b00
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/core/src/ops/function.rs:248:5
[INFO] [stderr]     33:     0x55f0213d122e - std::sys_common::backtrace::__rust_begin_short_backtrace::hdd72c3ea47799f8d
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/sys_common/backtrace.rs:122:18
[INFO] [stderr]     34:     0x55f0213cb5c1 - std::rt::lang_start::{{closure}}::h22c935972fc8d5a2
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/rt.rs:145:18
[INFO] [stderr]     35:     0x55f0214e6b6e - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h9c80b603d656db3f
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/core/src/ops/function.rs:280:13
[INFO] [stderr]     36:     0x55f0214e6b6e - std::panicking::try::do_call::h86b1dd6fd2903147
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:492:40
[INFO] [stderr]     37:     0x55f0214e6b6e - std::panicking::try::h06cba322e163361a
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:456:19
[INFO] [stderr]     38:     0x55f0214e6b6e - std::panic::catch_unwind::h77fc4ef3c419c34e
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panic.rs:137:14
[INFO] [stderr]     39:     0x55f0214e6b6e - std::rt::lang_start_internal::{{closure}}::h6786ee70f1cf45dc
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/rt.rs:128:48
[INFO] [stderr]     40:     0x55f0214e6b6e - std::panicking::try::do_call::h682a3324f06cc1bc
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:492:40
[INFO] [stderr]     41:     0x55f0214e6b6e - std::panicking::try::h09ce465b693a7cf9
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panicking.rs:456:19
[INFO] [stderr]     42:     0x55f0214e6b6e - std::panic::catch_unwind::h5eb4cb244476317c
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/panic.rs:137:14
[INFO] [stderr]     43:     0x55f0214e6b6e - std::rt::lang_start_internal::hba2d4a4771a618dc
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/rt.rs:128:20
[INFO] [stderr]     44:     0x55f0213cb590 - std::rt::lang_start::habfa11dcfd2ed3bd
[INFO] [stderr]                                  at /rustc/daf68b1f766e67ffe040260b15c218301853386a/library/std/src/rt.rs:144:17
[INFO] [stderr]     45:     0x55f02141d4fc - main
[INFO] [stderr]     46:     0x7f5b4db130b3 - __libc_start_main
[INFO] [stderr]     47:     0x55f021381a6e - _start
[INFO] [stderr]     48:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "cbcc5388f49c2b0d0dc3602847eb46b3fba3358a5a7fe1d9d2ca96c09fbac03e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbcc5388f49c2b0d0dc3602847eb46b3fba3358a5a7fe1d9d2ca96c09fbac03e", kill_on_drop: false }`
[INFO] [stdout] cbcc5388f49c2b0d0dc3602847eb46b3fba3358a5a7fe1d9d2ca96c09fbac03e