[INFO] fetching crate yansi 0.5.0...
[INFO] documenting yansi-0.5.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate yansi 0.5.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate yansi 0.5.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yansi 0.5.0
[INFO] finished tweaking crates.io crate yansi 0.5.0
[INFO] tweaked toml for crates.io crate yansi 0.5.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c8996d116e132ee543b47f52b62d3a29e68dc74d24a406400e28d634b0d0b562
[INFO] running `Command { std: "docker" "start" "-a" "c8996d116e132ee543b47f52b62d3a29e68dc74d24a406400e28d634b0d0b562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8996d116e132ee543b47f52b62d3a29e68dc74d24a406400e28d634b0d0b562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8996d116e132ee543b47f52b62d3a29e68dc74d24a406400e28d634b0d0b562", kill_on_drop: false }`
[INFO] [stdout] c8996d116e132ee543b47f52b62d3a29e68dc74d24a406400e28d634b0d0b562
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0494b09d5b183a1f9c211f7dec253e5d17d58bfc78f042aafa391297504430cc
[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" "0494b09d5b183a1f9c211f7dec253e5d17d58bfc78f042aafa391297504430cc", kill_on_drop: false }`
[INFO] [stderr]  Documenting yansi v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] thread 'rustc' panicked at 'tried to calculate a disambiguator for a def without a namespace?', src/librustdoc/passes/collect_intra_doc_links.rs:1604:18
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7f80bfae9f70 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x7f80bfae9f70 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f80bfae9f70 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7f80bfae9f70 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x7f80bfb5797c - core::fmt::write::h306731c068f7162c
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]    5:     0x7f80bfadb935 - std::io::Write::write_fmt::hd2fa90334eee2a21
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]    6:     0x7f80bfaeddfb - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x7f80bfaeddfb - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x7f80bfaeddfb - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x7f80bfaed8d1 - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:225:9
[INFO] [stderr]   10:     0x7f80c02f90cd - rustc_driver::report_ice::hff672d9b88ca03b0
[INFO] [stderr]   11:     0x7f80bfaee629 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:626:17
[INFO] [stderr]   12:     0x7f80bfaee0e7 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stderr]   13:     0x7f80bfaea46c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]   14:     0x7f80bfaee049 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stderr]   15:     0x7f80bfab8f81 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stderr]   16:     0x7f80bfab8e73 - core::option::expect_failed::hb6407502861d5eec
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/option.rs:1243:5
[INFO] [stderr]   17:     0x56036390500b - rustdoc::passes::collect_intra_doc_links::suggest_disambiguator::h6f5ef6a82c926801
[INFO] [stderr]   18:     0x560363996d09 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h65091e99c04332db
[INFO] [stderr]   19:     0x7f80c1c8fff8 - rustc_middle::lint::struct_lint_level::struct_lint_level_impl::h144b6c9cacd10f1f
[INFO] [stderr]   20:     0x560363902178 - rustdoc::passes::collect_intra_doc_links::LinkCollector::resolve_link::{{closure}}::h19a0bf0de1933f88
[INFO] [stderr]   21:     0x560363902b0f - rustdoc::passes::collect_intra_doc_links::LinkCollector::resolve_link::{{closure}}::hf7020899d756f39f
[INFO] [stderr]   22:     0x56036390115b - rustdoc::passes::collect_intra_doc_links::LinkCollector::resolve_link::ha606c2e4f4d3fdee
[INFO] [stderr]   23:     0x5603638f9c1d - <rustdoc::passes::collect_intra_doc_links::LinkCollector as rustdoc::fold::DocFolder>::fold_item::hb891c911d03aaf6f
[INFO] [stderr]   24:     0x5603638f3694 - rustdoc::passes::collect_intra_doc_links::collect_intra_doc_links::he1418f9e8e597364
[INFO] [stderr]   25:     0x5603638b5927 - rustdoc::core::run_global_ctxt::he8ca65c9f72e37a7
[INFO] [stderr]   26:     0x5603638baefb - rustc_interface::passes::QueryContext::enter::h8bee8aa96cde0b09
[INFO] [stderr]   27:     0x56036390c721 - rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter::he995438325b00cc9
[INFO] [stderr]   28:     0x5603637c3f90 - rustc_span::with_source_map::h934e2f1918ad8b55
[INFO] [stderr]   29:     0x56036390cdde - rustc_interface::interface::create_compiler_and_run::h3733b17990c4def0
[INFO] [stderr]   30:     0x56036378d8e7 - rustdoc::main_options::hd3410e2beeb73426
[INFO] [stderr]   31:     0x5603639de990 - scoped_tls::ScopedKey<T>::set::hdff5d7d33648ebf4
[INFO] [stderr]   32:     0x56036399409b - std::sys_common::backtrace::__rust_begin_short_backtrace::h6414c7a832a123ba
[INFO] [stderr]   33:     0x5603639e74b3 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h5402827145fc6ac8
[INFO] [stderr]   34:     0x7f80bfafab07 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stderr]   35:     0x7f80bfafab07 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stderr]   36:     0x7f80bfafab07 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stderr]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stderr]   37:     0x7f80bfa17609 - start_thread
[INFO] [stderr]   38:     0x7f80bf910293 - 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] [stderr] error: could not document `yansi`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name yansi 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 0.5.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0494b09d5b183a1f9c211f7dec253e5d17d58bfc78f042aafa391297504430cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0494b09d5b183a1f9c211f7dec253e5d17d58bfc78f042aafa391297504430cc", kill_on_drop: false }`
[INFO] [stdout] 0494b09d5b183a1f9c211f7dec253e5d17d58bfc78f042aafa391297504430cc
