[INFO] fetching crate cynthia 0.0.6...
[INFO] documenting cynthia-0.0.6 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate cynthia 0.0.6 into /workspace/builds/worker-79/source
[INFO] validating manifest of crates.io crate cynthia 0.0.6 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 crates.io crate cynthia 0.0.6
[INFO] finished tweaking crates.io crate cynthia 0.0.6
[INFO] tweaked toml for crates.io crate cynthia 0.0.6 written to /workspace/builds/worker-79/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] 1f504a64043778fad542299543c2e6c27f71d1878ef853c963c5bb5195543ee7
[INFO] running `Command { std: "docker" "start" "-a" "1f504a64043778fad542299543c2e6c27f71d1878ef853c963c5bb5195543ee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f504a64043778fad542299543c2e6c27f71d1878ef853c963c5bb5195543ee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f504a64043778fad542299543c2e6c27f71d1878ef853c963c5bb5195543ee7", kill_on_drop: false }`
[INFO] [stdout] 1f504a64043778fad542299543c2e6c27f71d1878ef853c963c5bb5195543ee7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] 813a6bfef4207271cfab41ab0d4051a9b1c14c0743428099693316da02d8765a
[INFO] running `Command { std: "docker" "start" "-a" "813a6bfef4207271cfab41ab0d4051a9b1c14c0743428099693316da02d8765a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.5
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]    Compiling cynthia-macros v0.0.3
[INFO] [stderr]  Documenting cynthia v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crate::Event`
[INFO] [stdout]  --> src/net/polling/epoll.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::Event;
[INFO] [stdout]   |     ^^^^^^^^^^^^ no `Event` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: crate `libc` is private
[INFO] [stdout]    --> src/net/polling/epoll.rs:91:23
[INFO] [stdout]     |
[INFO] [stdout] 91  |         self.ctl(std::libc::EPOLL_CTL_ADD, fd, Some(ev))
[INFO] [stdout]     |                       ^^^^ private crate
[INFO] [stdout]     |
[INFO] [stdout] note: the crate `libc` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: crate `libc` is private
[INFO] [stdout]    --> src/net/polling/epoll.rs:95:23
[INFO] [stdout]     |
[INFO] [stdout] 95  |         self.ctl(std::libc::EPOLL_CTL_MOD, fd, Some(ev))
[INFO] [stdout]     |                       ^^^^ private crate
[INFO] [stdout]     |
[INFO] [stdout] note: the crate `libc` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: crate `libc` is private
[INFO] [stdout]    --> src/net/polling/epoll.rs:99:23
[INFO] [stdout]     |
[INFO] [stdout] 99  |         self.ctl(std::libc::EPOLL_CTL_DEL, fd, None)
[INFO] [stdout]     |                       ^^^^ private crate
[INFO] [stdout]     |
[INFO] [stdout] note: the crate `libc` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: crate `libc` is private
[INFO] [stdout]    --> src/net/polling/epoll.rs:104:32
[INFO] [stdout]     |
[INFO] [stdout] 104 |             let new_val = std::libc::itimerspec {
[INFO] [stdout]     |                                ^^^^ private crate
[INFO] [stdout]     |
[INFO] [stdout] note: the crate `libc` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: crate `libc` is private
[INFO] [stdout]    --> src/net/polling/epoll.rs:108:37
[INFO] [stdout]     |
[INFO] [stdout] 108 |                     Some(t) => std::libc::timespec {
[INFO] [stdout]     |                                     ^^^^ private crate
[INFO] [stdout]     |
[INFO] [stdout] note: the crate `libc` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `cynthia`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name cynthia src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="alloc"' --cfg 'feature="cynthia-macros"' --cfg 'feature="default"' --cfg 'feature="futures-io"' --cfg 'feature="macros"' --cfg 'feature="pin-project-lite"' --cfg 'feature="std"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e8a3ea342f33c20b -L dependency=/opt/rustwide/target/debug/deps --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-483f5a2788925099.rmeta --extern crossbeam_queue=/opt/rustwide/target/debug/deps/libcrossbeam_queue-da334aa750402782.rmeta --extern cynthia_macros=/opt/rustwide/target/debug/deps/libcynthia_macros-6f4ea3f0b81ed983.so --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-d1fd4a2264428cc8.rmeta --extern futures_io=/opt/rustwide/target/debug/deps/libfutures_io-5db4f4f4c0d47046.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-8e4e2b8835c2ad75.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-69c31699c5651728.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-6a77d5dadf64d1bc.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-b06fb62b00d511df.rmeta --extern signal_hook=/opt/rustwide/target/debug/deps/libsignal_hook-97b8234157c33c95.rmeta --extern stable_deref_trait=/opt/rustwide/target/debug/deps/libstable_deref_trait-7153728e4a704e95.rmeta --cap-lints=warn --crate-version 0.0.6` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "813a6bfef4207271cfab41ab0d4051a9b1c14c0743428099693316da02d8765a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "813a6bfef4207271cfab41ab0d4051a9b1c14c0743428099693316da02d8765a", kill_on_drop: false }`
[INFO] [stdout] 813a6bfef4207271cfab41ab0d4051a9b1c14c0743428099693316da02d8765a