[INFO] fetching crate comb 0.1.1...
[INFO] documenting comb-0.1.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate comb 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate comb 0.1.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate comb 0.1.1
[INFO] finished tweaking crates.io crate comb 0.1.1
[INFO] tweaked toml for crates.io crate comb 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6657a61f3fac03103bdfaefb62520b54baff57235b040913c37956af6370a56a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6657a61f3fac03103bdfaefb62520b54baff57235b040913c37956af6370a56a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6657a61f3fac03103bdfaefb62520b54baff57235b040913c37956af6370a56a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6657a61f3fac03103bdfaefb62520b54baff57235b040913c37956af6370a56a", kill_on_drop: false }`
[INFO] [stdout] 6657a61f3fac03103bdfaefb62520b54baff57235b040913c37956af6370a56a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4ae791878fcca8f5756542fe5507e1a18b5adbca7a32a45d9cb66ca59dad0b9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f4ae791878fcca8f5756542fe5507e1a18b5adbca7a32a45d9cb66ca59dad0b9", kill_on_drop: false }`
[INFO] [stderr]  Documenting comb v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `self::error::Result`
[INFO] [stdout]  --> src/scanner.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 | /// [Result](crate::error::Result) of [Self::Output](Scanner::Output) from the
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^^^^ the module `error` contains no item named `Result`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] thread 'rustc' panicked at 'inner items for a trait should be associated items', src/librustdoc/passes/collect_intra_doc_links.rs:581:34
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7f0dc129f410 - std::backtrace_rs::backtrace::libunwind::trace::h7cf3ca97bd83fbab
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x7f0dc129f410 - std::backtrace_rs::backtrace::trace_unsynchronized::h5a69c674b2d9ea5c
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x7f0dc129f410 - std::sys_common::backtrace::_print_fmt::hdf72478dfcb50678
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x7f0dc129f410 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1e0bdbb35e83deca
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]    4:     0x7f0dc130d5cc - core::fmt::write::he67f9b17bcb7ee73
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]    5:     0x7f0dc1291072 - std::io::Write::write_fmt::hac97d5cb5753e2ec
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/io/mod.rs:1516
[INFO] [stderr]    6:     0x7f0dc12a418d - std::sys_common::backtrace::_print::haa20918e28a126c5
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x7f0dc12a418d - std::sys_common::backtrace::print::h49e772a4873d9076
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x7f0dc12a418d - std::panicking::default_hook::{{closure}}::hb218b305d15e3f11
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:208
[INFO] [stderr]    9:     0x7f0dc12a3e38 - std::panicking::default_hook::h63997b7b949e1ce0
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:227
[INFO] [stderr]   10:     0x7f0dc1b2d0b4 - rustc_driver::report_ice::h5b9fb8474972c25e
[INFO] [stderr]   11:     0x7f0dc12a49d6 - std::panicking::rust_panic_with_hook::hb54f09ccadf64bd3
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:581
[INFO] [stderr]   12:     0x7f0dc12a4559 - std::panicking::begin_panic_handler::{{closure}}::h8b43445b254eeb30
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:484
[INFO] [stderr]   13:     0x7f0dc129f89c - std::sys_common::backtrace::__rust_end_short_backtrace::hacd691450edfeae0
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   14:     0x7f0dc12a4519 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/panicking.rs:483
[INFO] [stderr]   15:     0x7f0dc130a0d1 - core::panicking::panic_fmt::h5b17d4a0e853d0f5
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/panicking.rs:85
[INFO] [stderr]   16:     0x7f0dc1309cb3 - core::option::expect_failed::ha4390247d473d6e0
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/core/src/option.rs:1226
[INFO] [stderr]   17:     0x56190d4155f1 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once::h521cd008a4c78ad7
[INFO] [stderr]   18:     0x56190d534d70 - <alloc::vec::Vec<T> as alloc::vec::SpecFromIter<T,I>>::from_iter::h81cb72faa66aa9ba
[INFO] [stderr]   19:     0x56190d433a58 - rustdoc::passes::collect_intra_doc_links::LinkCollector::resolve::h4884293c77c69ec0
[INFO] [stderr]   20:     0x56190d43801a - rustdoc::passes::collect_intra_doc_links::LinkCollector::resolve_link::he7d03b220e016ca4
[INFO] [stderr]   21:     0x56190d4357cf - <rustdoc::passes::collect_intra_doc_links::LinkCollector as rustdoc::fold::DocFolder>::fold_item::h23f8d1abb81979c7
[INFO] [stderr]   22:     0x56190d52c1d6 - <alloc::vec::Vec<T> as alloc::vec::SpecFromIter<T,I>>::from_iter::h153a188130abff73
[INFO] [stderr]   23:     0x56190d42e19e - rustdoc::fold::DocFolder::fold_inner_recur::h4cdf6e50bdff1349
[INFO] [stderr]   24:     0x56190d42f9bc - rustdoc::fold::DocFolder::fold_item_recur::h04cfbc1bc135d3c4
[INFO] [stderr]   25:     0x56190d435a5c - <rustdoc::passes::collect_intra_doc_links::LinkCollector as rustdoc::fold::DocFolder>::fold_item::h23f8d1abb81979c7
[INFO] [stderr]   26:     0x56190d430b4a - rustdoc::passes::collect_intra_doc_links::collect_intra_doc_links::h373ec43b0869d1ad
[INFO] [stderr]   27:     0x56190d25001e - rustc_session::utils::<impl rustc_session::session::Session>::time::h4b8a8208d0f1a011
[INFO] [stderr]   28:     0x56190d3530c4 - rustc_interface::interface::create_compiler_and_run::h2c9ea7f5b6870482
[INFO] [stderr]   29:     0x56190d282098 - rustdoc::core::run_core::h820f8126674039af
[INFO] [stderr]   30:     0x56190d24918c - rustdoc::main_options::h48c70af8683ad8e1
[INFO] [stderr]   31:     0x56190d405cc4 - scoped_tls::ScopedKey<T>::set::h29d0b82c346d842f
[INFO] [stderr]   32:     0x56190d2f1775 - std::sys_common::backtrace::__rust_begin_short_backtrace::h65329bcf5d8f859b
[INFO] [stderr]   33:     0x56190d46c82e - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc1ed1336276c759a
[INFO] [stderr]   34:     0x7f0dc12b370a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hd4d30e37db281e8f
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   35:     0x7f0dc12b370a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h019185a215ba16e4
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   36:     0x7f0dc12b370a - std::sys::unix::thread::Thread::new::thread_start::h33c6d7cf25f9291f
[INFO] [stderr]                                at /rustc/212e76c31d461462544b5d516d3bdc99fc8f016e/library/std/src/sys/unix/thread.rs:87
[INFO] [stderr]   37:     0x7f0dbc422609 - start_thread
[INFO] [stderr]   38:     0x7f0dc10fe103 - clone
[INFO] [stderr]   39:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] error: internal compiler error: unexpected panic
[INFO] [stderr] 
[INFO] [stderr] error: Unrecognized option: 'document-private-items'
[INFO] [stderr] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `comb`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name comb src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "f4ae791878fcca8f5756542fe5507e1a18b5adbca7a32a45d9cb66ca59dad0b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4ae791878fcca8f5756542fe5507e1a18b5adbca7a32a45d9cb66ca59dad0b9", kill_on_drop: false }`
[INFO] [stdout] f4ae791878fcca8f5756542fe5507e1a18b5adbca7a32a45d9cb66ca59dad0b9
